# echo -n "1" > /sys/class/ide_port/idex/scan
done
+
+NOTE: please make sure that partitions are unmounted and that there are
+no other active references to devices before doing "delete_devices" step,
+also do not attempt "scan" step on devices currently in use -- otherwise
+results may be unpredictable and lead to data loss if you're unlucky
This allows the kernel to change PIO, DMA and UDMA speeds and to
configure the chip to optimum performance.
+config BLK_DEV_IT8172
+ tristate "IT8172 IDE support"
+ select BLK_DEV_IDEDMA_PCI
+ help
+ This driver adds support for the IDE controller on the
+ IT8172 System Controller.
+
config BLK_DEV_IT8213
tristate "IT8213 IDE support"
select BLK_DEV_IDEDMA_PCI
obj-$(CONFIG_BLK_DEV_CY82C693) += cy82c693.o
obj-$(CONFIG_BLK_DEV_DELKIN) += delkin_cb.o
obj-$(CONFIG_BLK_DEV_HPT366) += hpt366.o
+obj-$(CONFIG_BLK_DEV_IT8172) += it8172.o
obj-$(CONFIG_BLK_DEV_IT8213) += it8213.o
obj-$(CONFIG_BLK_DEV_IT821X) += it821x.o
obj-$(CONFIG_BLK_DEV_JMICRON) += jmicron.o
static void aec6210_set_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_host *host = pci_get_drvdata(dev);
struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_host *host = pci_get_drvdata(dev);
struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
int s_time = t->setup, a_time = t->active, c_time = t->cycle;
static void ali_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 speed1 = speed;
u8 unit = drive->dn & 1;
static int ali15x3_dma_setup(ide_drive_t *drive)
{
if (m5229_revision < 0xC2 && drive->media != ide_disk) {
- if (rq_data_dir(drive->hwif->hwgroup->rq))
+ if (rq_data_dir(drive->hwif->rq))
return 1; /* try PIO instead of DMA */
}
return ide_dma_setup(drive);
if (ide_allocate_dma_engine(hwif))
return -1;
- hwif->dma_ops = &sff_dma_ops;
-
return 0;
}
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_port_info ali15x3_chipset __devinitdata = {
.init_hwif = init_hwif_ali15x3,
.init_dma = init_dma_ali15x3,
.port_ops = &ali_port_ops,
+ .dma_ops = &sff_dma_ops,
.pio_mask = ATA_PIO5,
.swdma_mask = ATA_SWDMA2,
.mwdma_mask = ATA_MWDMA2,
{
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
- ide_drive_t *peer = hwif->drives + (~drive->dn & 1);
+ ide_drive_t *peer = ide_get_pair_dev(drive);
struct ide_timing t, p;
int T, UT;
u8 udma_mask = hwif->ultra_mask;
ide_timing_compute(drive, speed, &t, T, UT);
- if (peer->dev_flags & IDE_DFLAG_PRESENT) {
+ if (peer) {
ide_timing_compute(peer, peer->current_speed, &p, T, UT);
ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
}
static int auide_build_dmatable(ide_drive_t *drive)
{
int i, iswrite, count = 0;
- ide_hwif_t *hwif = HWIF(drive);
- struct request *rq = HWGROUP(drive)->rq;
+ ide_hwif_t *hwif = drive->hwif;
+ struct request *rq = hwif->rq;
_auide_hwif *ahwif = &auide_hwif;
struct scatterlist *sg;
static int auide_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
if (hwif->sg_nents) {
ide_destroy_dmatable(drive);
}
static int auide_dma_setup(ide_drive_t *drive)
-{
- struct request *rq = HWGROUP(drive)->rq;
+{
+ struct request *rq = drive->hwif->rq;
if (!auide_build_dmatable(drive)) {
ide_map_sg(drive, rq);
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
* so we merge the timings, using the slowest value for each timing.
*/
if (index > 1) {
- ide_hwif_t *hwif = drive->hwif;
- ide_drive_t *peer = &hwif->drives[!(drive->dn & 1)];
+ ide_drive_t *peer = ide_get_pair_dev(drive);
unsigned int mate = index ^ 1;
- if (peer->dev_flags & IDE_DFLAG_PRESENT) {
+ if (peer) {
if (setup_count < setup_counts[mate])
setup_count = setup_counts[mate];
if (active_count < active_counts[mate])
*/
static void cmd64x_tune_pio(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
unsigned int cycle_time;
* the slowest address setup timing ourselves.
*/
if (hwif->channel) {
- ide_drive_t *drives = hwif->drives;
+ ide_drive_t *pair = ide_get_pair_dev(drive);
drive->drive_data = setup_count;
- setup_count = max(drives[0].drive_data, drives[1].drive_data);
+
+ if (pair)
+ setup_count = max_t(u8, setup_count, pair->drive_data);
}
if (setup_count > 5) /* shouldn't actually happen... */
static void cmd64x_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 unit = drive->dn & 0x01;
u8 regU = 0, pciU = hwif->channel ? UDIDETCR1 : UDIDETCR0;
static int cmd648_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long base = hwif->dma_base - (hwif->channel * 8);
int err = ide_dma_end(drive);
u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 :
static int cmd64x_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
int irq_reg = hwif->channel ? ARTTIM23 : CFR;
u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 :
static int cmd648_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long base = hwif->dma_base - (hwif->channel * 8);
u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 :
MRDMODE_INTR_CH0;
static int cmd64x_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
int irq_reg = hwif->channel ? ARTTIM23 : CFR;
u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 :
static int cmd646_1_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u8 dma_stat = 0, dma_cmd = 0;
drive->waiting_for_dma = 0;
.dma_test_irq = cmd64x_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_dma_ops cmd646_rev1_dma_ops = {
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_dma_ops cmd648_dma_ops = {
.dma_test_irq = cmd648_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *pdev = to_pci_dev(hwif->dev);
int controller = drive->dn > 1 ? 1 : 0;
static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
pio_clocks_t pclk;
unsigned int addrCtrl;
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
static u8 hpt3xx_udma_filter(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
u8 mask = hwif->ultra_mask;
static u8 hpt3xx_mdma_filter(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
switch (info->chip_type) {
static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
static void hpt370_clear_engine(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
pci_write_config_byte(dev, hwif->select_data, 0x37);
static void hpt370_irq_timeout(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u16 bfifo = 0;
u8 dma_cmd;
static int hpt370_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
if (dma_stat & 0x01) {
/* returns 1 if DMA IRQ issued, 0 otherwise */
static int hpt374_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u16 bfifo = 0;
u8 dma_stat;
static int hpt374_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 mcr = 0, mcr_addr = hwif->select_data;
u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
{
- hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
+ hpt3xxn_set_clock(drive->hwif, rq_data_dir(rq) ? 0x23 : 0x21);
}
/**
if (ide_allocate_dma_engine(hwif))
return -1;
- hwif->dma_ops = &sff_dma_ops;
-
return 0;
}
.dma_test_irq = hpt374_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_dma_ops hpt370_dma_ops = {
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = hpt370_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_dma_ops hpt36x_dma_ops = {
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = hpt366_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
*/
static void icside_maskproc(ide_drive_t *drive, int mask)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
struct icside_state *state = ecard_get_drvdata(ec);
unsigned long flags;
static int icside_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
drive->waiting_for_dma = 0;
static void icside_dma_start(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
/* We can not enable DMA on both channels simultaneously. */
static int icside_dma_setup(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
struct icside_state *state = ecard_get_drvdata(ec);
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
unsigned int dma_mode;
if (rq_data_dir(rq))
static int icside_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct expansion_card *ec = ECARD_DEV(hwif->dev);
struct icside_state *state = ecard_get_drvdata(ec);
*/
static acpi_handle ide_acpi_drive_get_handle(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
int port;
acpi_handle drive_handle;
acpi_status status;
struct acpi_buffer output;
union acpi_object *out_obj;
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct device *dev = hwif->gendev.parent;
int err = -ENODEV;
int port;
*/
void ide_acpi_set_state(ide_hwif_t *hwif, int on)
{
- int unit;
+ ide_drive_t *drive;
+ int i;
if (ide_noacpi || ide_noacpi_psx)
return;
/* channel first and then drives for power on and verse versa for power off */
if (on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
+ ide_port_for_each_dev(i, drive, hwif) {
if (!drive->acpidata->obj_handle)
drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
* for both drives, regardless whether they are connected
* or not.
*/
- hwif->drives[0].acpidata = &hwif->acpidata->master;
- hwif->drives[1].acpidata = &hwif->acpidata->slave;
+ hwif->devices[0]->acpidata = &hwif->acpidata->master;
+ hwif->devices[1]->acpidata = &hwif->acpidata->slave;
/*
* Send IDENTIFY for each drive
*/
- for (i = 0; i < MAX_DRIVES; i++) {
- drive = &hwif->drives[i];
-
+ ide_port_for_each_dev(i, drive, hwif) {
memset(drive->acpidata, 0, sizeof(*drive->acpidata));
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
ide_acpi_get_timing(hwif);
ide_acpi_push_timing(hwif);
- for (i = 0; i < MAX_DRIVES; i++) {
- drive = &hwif->drives[i];
-
+ ide_port_for_each_dev(i, drive, hwif) {
if (drive->dev_flags & IDE_DFLAG_PRESENT)
/* Execute ACPI startup code */
ide_acpi_exec_tfs(drive);
int ide_cd_expiry(ide_drive_t *drive)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
unsigned long wait = 0;
debug_log("%s: rq->cmd[0]: 0x%x\n", __func__, rq->cmd[0]);
{
struct ide_atapi_pc *pc = drive->pc;
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
xfer_func_t *xferfunc;
unsigned int timeout, temp;
{
struct ide_atapi_pc *uninitialized_var(pc);
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
ide_expiry_t *expiry;
unsigned int timeout;
int cmd_len;
}
/* Set the interrupt routine */
- ide_set_handler(drive, ide_pc_intr, timeout, expiry);
+ ide_set_handler(drive,
+ (dev_is_idecd(drive) ? drive->irq_handler
+ : ide_pc_intr),
+ timeout, expiry);
/* Begin DMA, if necessary */
if (dev_is_idecd(drive)) {
if (dev_is_idecd(drive)) {
tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
- bcount = ide_cd_get_xferlen(hwif->hwgroup->rq);
+ bcount = ide_cd_get_xferlen(hwif->rq);
expiry = ide_cd_expiry;
timeout = ATAPI_WAIT_PC;
static void cdrom_end_request(ide_drive_t *drive, int uptodate)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
int nsectors = rq->hard_cur_sectors;
ide_debug_log(IDE_DBG_FUNC, "Call %s, cmd: 0x%x, uptodate: 0x%x, "
static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
- struct request *rq = hwgroup->rq;
+ struct request *rq = hwif->rq;
int stat, err, sense_key;
/* check for errors */
blkdev_dequeue_request(rq);
spin_unlock_irqrestore(q->queue_lock, flags);
- hwgroup->rq = NULL;
+ hwif->rq = NULL;
cdrom_queue_request_sense(drive, rq->sense, rq);
} else
return 1;
}
-static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *);
-static ide_startstop_t cdrom_newpc_intr(ide_drive_t *);
-
-/*
- * Set up the device registers for transferring a packet command on DEV,
- * expecting to later transfer XFERLEN bytes. HANDLER is the routine
- * which actually transfers the command to the drive. If this is a
- * drq_interrupt device, this routine will arrange for HANDLER to be
- * called when the interrupt from the drive arrives. Otherwise, HANDLER
- * will be called immediately after the drive is prepared for the transfer.
- */
-static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
- int xferlen;
-
- xferlen = ide_cd_get_xferlen(rq);
-
- ide_debug_log(IDE_DBG_PC, "Call %s, xferlen: %d\n", __func__, xferlen);
-
- /* FIXME: for Virtual DMA we must check harder */
- if (drive->dma)
- drive->dma = !hwif->dma_ops->dma_setup(drive);
-
- /* set up the controller registers */
- ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL,
- xferlen, drive->dma);
-
- if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
- /* waiting for CDB interrupt, not DMA yet. */
- if (drive->dma)
- drive->waiting_for_dma = 0;
-
- /* packet command */
- ide_execute_command(drive, ATA_CMD_PACKET,
- cdrom_transfer_packet_command,
- ATAPI_WAIT_PC, ide_cd_expiry);
- return ide_started;
- } else {
- ide_execute_pkt_cmd(drive);
-
- return cdrom_transfer_packet_command(drive);
- }
-}
-
-/*
- * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device
- * registers must have already been prepared by cdrom_start_packet_command.
- * HANDLER is the interrupt handler to call when the command completes or
- * there's data ready.
- */
-#define ATAPI_MIN_CDB_BYTES 12
-static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
- int cmd_len;
- ide_startstop_t startstop;
-
- ide_debug_log(IDE_DBG_PC, "Call %s\n", __func__);
-
- if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
- /*
- * Here we should have been called after receiving an interrupt
- * from the device. DRQ should how be set.
- */
-
- /* check for errors */
- if (cdrom_decode_status(drive, ATA_DRQ, NULL))
- return ide_stopped;
-
- /* ok, next interrupt will be DMA interrupt */
- if (drive->dma)
- drive->waiting_for_dma = 1;
- } else {
- /* otherwise, we must wait for DRQ to get set */
- if (ide_wait_stat(&startstop, drive, ATA_DRQ,
- ATA_BUSY, WAIT_READY))
- return startstop;
- }
-
- /* arm the interrupt handler */
- ide_set_handler(drive, cdrom_newpc_intr, rq->timeout, ide_cd_expiry);
-
- /* ATAPI commands get padded out to 12 bytes minimum */
- cmd_len = COMMAND_SIZE(rq->cmd[0]);
- if (cmd_len < ATAPI_MIN_CDB_BYTES)
- cmd_len = ATAPI_MIN_CDB_BYTES;
-
- /* send the command to the device */
- hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len);
-
- /* start the DMA if need be */
- if (drive->dma)
- hwif->dma_ops->dma_start(drive);
-
- return ide_started;
-}
-
/*
* Check the contents of the interrupt reason register from the cdrom
* and attempt to recover if there are problems. Returns 0 if everything's
static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
- struct request *rq = hwgroup->rq;
+ struct request *rq = hwif->rq;
xfer_func_t *xferfunc;
ide_expiry_t *expiry = NULL;
int dma_error = 0, dma, stat, thislen, uptodate = 0;
if (blk_end_request(rq, 0, dlen))
BUG();
- hwgroup->rq = NULL;
+ hwif->rq = NULL;
} else {
if (!uptodate)
rq->cmd_flags |= REQ_FAILED;
return ide_stopped;
}
- return cdrom_start_packet_command(drive);
+ return ide_issue_pc(drive);
}
/*
static int ide_cd_probe(ide_drive_t *);
-static ide_driver_t ide_cdrom_driver = {
+static struct ide_driver ide_cdrom_driver = {
.gen_driver = {
.owner = THIS_MODULE,
.name = "ide-cdrom",
.version = IDECD_VERSION,
.do_request = ide_cd_do_request,
.end_request = ide_end_request,
- .error = __ide_error,
#ifdef CONFIG_IDE_PROC_FS
.proc_entries = ide_cd_proc_entries,
.proc_devsets = ide_cd_proc_devsets,
}
drive->debug_mask = debug_mask;
+ drive->irq_handler = cdrom_newpc_intr;
info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
if (info == NULL) {
/* Structure of a MSF cdrom address. */
struct atapi_msf {
- byte reserved;
- byte minute;
- byte second;
- byte frame;
+ u8 reserved;
+ u8 minute;
+ u8 second;
+ u8 frame;
};
/* Space to hold the disk TOC. */
#define MAX_TRACKS 99
struct atapi_toc_header {
unsigned short toc_length;
- byte first_track;
- byte last_track;
+ u8 first_track;
+ u8 last_track;
};
struct atapi_toc_entry {
- byte reserved1;
+ u8 reserved1;
#if defined(__BIG_ENDIAN_BITFIELD)
- __u8 adr : 4;
- __u8 control : 4;
+ u8 adr : 4;
+ u8 control : 4;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
- __u8 control : 4;
- __u8 adr : 4;
+ u8 control : 4;
+ u8 adr : 4;
#else
#error "Please fix <asm/byteorder.h>"
#endif
- byte track;
- byte reserved2;
+ u8 track;
+ u8 reserved2;
union {
unsigned lba;
struct atapi_msf msf;
/* Extra per-device info for cdrom drives. */
struct cdrom_info {
- ide_drive_t *drive;
- ide_driver_t *driver;
- struct gendisk *disk;
- struct kref kref;
+ ide_drive_t *drive;
+ struct ide_driver *driver;
+ struct gendisk *disk;
+ struct kref kref;
/* Buffer for table of contents. NULL if we haven't allocated
a TOC buffer for this device yet. */
static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
sector_t block)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u16 nsectors = (u16)rq->nr_sectors;
u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
u8 dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
sector_t block)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED);
return 0;
}
+u8 ide_dma_sff_read_status(ide_hwif_t *hwif)
+{
+ unsigned long addr = hwif->dma_base + ATA_DMA_STATUS;
+
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ return readb((void __iomem *)addr);
+ else
+ return inb(addr);
+}
+EXPORT_SYMBOL_GPL(ide_dma_sff_read_status);
+
+static void ide_dma_sff_write_status(ide_hwif_t *hwif, u8 val)
+{
+ unsigned long addr = hwif->dma_base + ATA_DMA_STATUS;
+
+ if (hwif->host_flags & IDE_HFLAG_MMIO)
+ writeb(val, (void __iomem *)addr);
+ else
+ outb(val, addr);
+}
+
/**
* ide_dma_host_set - Enable/disable DMA on a host
* @drive: drive to control
{
ide_hwif_t *hwif = drive->hwif;
u8 unit = drive->dn & 1;
- u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
if (on)
dma_stat |= (1 << (5 + unit));
else
dma_stat &= ~(1 << (5 + unit));
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- writeb(dma_stat,
- (void __iomem *)(hwif->dma_base + ATA_DMA_STATUS));
- else
- outb(dma_stat, hwif->dma_base + ATA_DMA_STATUS);
+ ide_dma_sff_write_status(hwif, dma_stat);
}
EXPORT_SYMBOL_GPL(ide_dma_host_set);
int ide_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
unsigned int reading = rq_data_dir(rq) ? 0 : ATA_DMA_WR;
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
u8 dma_stat;
}
/* PRD table */
- if (hwif->host_flags & IDE_HFLAG_MMIO)
+ if (mmio)
writel(hwif->dmatable_dma,
(void __iomem *)(hwif->dma_base + ATA_DMA_TABLE_OFS));
else
outb(reading, hwif->dma_base + ATA_DMA_CMD);
/* read DMA status for INTR & ERROR flags */
- dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
/* clear INTR & ERROR flags */
- if (mmio)
- writeb(dma_stat | ATA_DMA_ERR | ATA_DMA_INTR,
- (void __iomem *)(hwif->dma_base + ATA_DMA_STATUS));
- else
- outb(dma_stat | ATA_DMA_ERR | ATA_DMA_INTR,
- hwif->dma_base + ATA_DMA_STATUS);
+ ide_dma_sff_write_status(hwif, dma_stat | ATA_DMA_ERR | ATA_DMA_INTR);
drive->waiting_for_dma = 1;
return 0;
static int dma_timer_expiry(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
printk(KERN_WARNING "%s: %s: DMA status (0x%02x)\n",
drive->name, __func__, dma_stat);
if ((dma_stat & 0x18) == 0x18) /* BUSY Stupid Early Timer !! */
return WAIT_CMD;
- hwif->hwgroup->expiry = NULL; /* one free ride for now */
+ hwif->expiry = NULL; /* one free ride for now */
if (dma_stat & ATA_DMA_ERR) /* ERROR */
return -1;
int ide_dma_end(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
u8 dma_stat = 0, dma_cmd = 0, mask;
drive->waiting_for_dma = 0;
/* stop DMA */
- if (mmio) {
+ if (hwif->host_flags & IDE_HFLAG_MMIO) {
dma_cmd = readb((void __iomem *)(hwif->dma_base + ATA_DMA_CMD));
writeb(dma_cmd & ~ATA_DMA_START,
(void __iomem *)(hwif->dma_base + ATA_DMA_CMD));
}
/* get DMA status */
- dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
- if (mmio)
- /* clear the INTR & ERROR bits */
- writeb(dma_stat | ATA_DMA_ERR | ATA_DMA_INTR,
- (void __iomem *)(hwif->dma_base + ATA_DMA_STATUS));
- else
- outb(dma_stat | ATA_DMA_ERR | ATA_DMA_INTR,
- hwif->dma_base + ATA_DMA_STATUS);
+ /* clear INTR & ERROR bits */
+ ide_dma_sff_write_status(hwif, dma_stat | ATA_DMA_ERR | ATA_DMA_INTR);
/* purge DMA mappings */
ide_destroy_dmatable(drive);
int ide_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
return (dma_stat & ATA_DMA_INTR) ? 1 : 0;
}
.dma_test_irq = ide_dma_test_irq,
.dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
EXPORT_SYMBOL_GPL(sff_dma_ops);
if (OK_STAT(stat, DRIVE_READY, drive->bad_wstat | ATA_DRQ)) {
if (!dma_stat) {
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
task_end_request(drive, rq, stat);
return ide_stopped;
static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
{
struct ide_disk_obj *floppy = drive->driver_data;
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
int error;
ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
return drive->disk_ops->end_request(drive, uptodate, nrsecs);
}
-static ide_driver_t ide_gd_driver = {
+static struct ide_driver ide_gd_driver = {
.gen_driver = {
.owner = THIS_MODULE,
.name = "ide-gd",
.version = IDE_GD_VERSION,
.do_request = ide_gd_do_request,
.end_request = ide_gd_end_request,
- .error = __ide_error,
#ifdef CONFIG_IDE_PROC_FS
.proc_entries = ide_disk_proc_entries,
.proc_devsets = ide_disk_proc_devsets,
#endif
struct ide_disk_obj {
- ide_drive_t *drive;
- ide_driver_t *driver;
- struct gendisk *disk;
- struct kref kref;
- unsigned int openers; /* protected by BKL for now */
+ ide_drive_t *drive;
+ struct ide_driver *driver;
+ struct gendisk *disk;
+ struct kref kref;
+ unsigned int openers; /* protected by BKL for now */
/* Last failed packet command */
struct ide_atapi_pc *failed_pc;
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
ret = 0;
if (ret == 0 && dequeue)
- drive->hwif->hwgroup->rq = NULL;
+ drive->hwif->rq = NULL;
return ret;
}
int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
{
unsigned int nr_bytes = nr_sectors << 9;
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;
if (!nr_bytes) {
if (blk_pc_request(rq))
void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
- struct request *rq = hwgroup->rq;
+ ide_hwif_t *hwif = drive->hwif;
+ struct request *rq = hwif->rq;
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
ide_task_t *task = (ide_task_t *)rq->special;
return;
}
- hwgroup->rq = NULL;
+ hwif->rq = NULL;
rq->errors = err;
static void ide_kill_rq(ide_drive_t *drive, struct request *rq)
{
if (rq->rq_disk) {
- ide_driver_t *drv;
+ struct ide_driver *drv;
- drv = *(ide_driver_t **)rq->rq_disk->private_data;
+ drv = *(struct ide_driver **)rq->rq_disk->private_data;
drv->end_request(drive, 0, 0);
} else
ide_end_request(drive, 0, 0);
return ide_stopped;
}
-ide_startstop_t
+static ide_startstop_t
__ide_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
{
if (drive->media == ide_disk)
return ide_atapi_error(drive, rq, stat, err);
}
-EXPORT_SYMBOL_GPL(__ide_error);
-
/**
* ide_error - handle an error on the IDE
* @drive: drive the error occurred on
err = ide_dump_status(drive, msg, stat);
- if ((rq = HWGROUP(drive)->rq) == NULL)
+ rq = drive->hwif->rq;
+ if (rq == NULL)
return ide_stopped;
/* retry only "normal" I/O: */
return ide_stopped;
}
- if (rq->rq_disk) {
- ide_driver_t *drv;
-
- drv = *(ide_driver_t **)rq->rq_disk->private_data;
- return drv->error(drive, rq, stat, err);
- } else
- return __ide_error(drive, rq, stat, err);
+ return __ide_error(drive, rq, stat, err);
}
-
EXPORT_SYMBOL_GPL(ide_error);
static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
struct request *rq)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
ide_task_t *task = rq->special;
if (task) {
#ifdef DEBUG
printk("%s: start_request: current=0x%08lx\n",
- HWIF(drive)->name, (unsigned long) rq);
+ drive->hwif->name, (unsigned long) rq);
#endif
/* bail early if we've exceeded max_failures */
return startstop;
}
if (!drive->special.all) {
- ide_driver_t *drv;
+ struct ide_driver *drv;
/*
* We reset the drive so we need to issue a SETFEATURES.
*/
return ide_special_rq(drive, rq);
- drv = *(ide_driver_t **)rq->rq_disk->private_data;
+ drv = *(struct ide_driver **)rq->rq_disk->private_data;
return drv->do_request(drive, rq, rq->sector);
}
* @timeout: time to stall for (jiffies)
*
* ide_stall_queue() can be used by a drive to give excess bandwidth back
- * to the hwgroup by sleeping for timeout jiffies.
+ * to the port by sleeping for timeout jiffies.
*/
void ide_stall_queue (ide_drive_t *drive, unsigned long timeout)
}
EXPORT_SYMBOL(ide_stall_queue);
+static inline int ide_lock_port(ide_hwif_t *hwif)
+{
+ if (hwif->busy)
+ return 1;
+
+ hwif->busy = 1;
+
+ return 0;
+}
+
+static inline void ide_unlock_port(ide_hwif_t *hwif)
+{
+ hwif->busy = 0;
+}
+
+static inline int ide_lock_host(struct ide_host *host, ide_hwif_t *hwif)
+{
+ int rc = 0;
+
+ if (host->host_flags & IDE_HFLAG_SERIALIZE) {
+ rc = test_and_set_bit_lock(IDE_HOST_BUSY, &host->host_busy);
+ if (rc == 0) {
+ /* for atari only */
+ ide_get_lock(ide_intr, hwif);
+ }
+ }
+ return rc;
+}
+
+static inline void ide_unlock_host(struct ide_host *host)
+{
+ if (host->host_flags & IDE_HFLAG_SERIALIZE) {
+ /* for atari only */
+ ide_release_lock();
+ clear_bit_unlock(IDE_HOST_BUSY, &host->host_busy);
+ }
+}
+
/*
- * Issue a new request to a drive from hwgroup
- *
- * A hwgroup is a serialized group of IDE interfaces. Usually there is
- * exactly one hwif (interface) per hwgroup, but buggy controllers (eg. CMD640)
- * may have both interfaces in a single hwgroup to "serialize" access.
- * Or possibly multiple ISA interfaces can share a common IRQ by being grouped
- * together into one hwgroup for serialized access.
- *
- * Note also that several hwgroups can end up sharing a single IRQ,
- * possibly along with many other devices. This is especially common in
- * PCI-based systems with off-board IDE controller cards.
- *
- * The IDE driver uses a per-hwgroup lock to protect the hwgroup->busy flag.
- *
- * The first thread into the driver for a particular hwgroup sets the
- * hwgroup->busy flag to indicate that this hwgroup is now active,
- * and then initiates processing of the top request from the request queue.
- *
- * Other threads attempting entry notice the busy setting, and will simply
- * queue their new requests and exit immediately. Note that hwgroup->busy
- * remains set even when the driver is merely awaiting the next interrupt.
- * Thus, the meaning is "this hwgroup is busy processing a request".
- *
- * When processing of a request completes, the completing thread or IRQ-handler
- * will start the next request from the queue. If no more work remains,
- * the driver will clear the hwgroup->busy flag and exit.
- *
- * The per-hwgroup spinlock is used to protect all access to the
- * hwgroup->busy flag, but is otherwise not needed for most processing in
- * the driver. This makes the driver much more friendlier to shared IRQs
- * than previous designs, while remaining 100% (?) SMP safe and capable.
+ * Issue a new request to a device.
*/
void do_ide_request(struct request_queue *q)
{
ide_drive_t *drive = q->queuedata;
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
- struct request *rq;
+ struct ide_host *host = hwif->host;
+ struct request *rq = NULL;
ide_startstop_t startstop;
/*
blk_remove_plug(q);
spin_unlock_irq(q->queue_lock);
- spin_lock_irq(&hwgroup->lock);
- if (!ide_lock_hwgroup(hwgroup)) {
+ if (ide_lock_host(host, hwif))
+ goto plug_device_2;
+
+ spin_lock_irq(&hwif->lock);
+
+ if (!ide_lock_port(hwif)) {
+ ide_hwif_t *prev_port;
repeat:
- hwgroup->rq = NULL;
+ prev_port = hwif->host->cur_port;
+ hwif->rq = NULL;
if (drive->dev_flags & IDE_DFLAG_SLEEPING) {
if (time_before(drive->sleep, jiffies)) {
- ide_unlock_hwgroup(hwgroup);
+ ide_unlock_port(hwif);
goto plug_device;
}
}
- if (hwif != hwgroup->hwif) {
+ if ((hwif->host->host_flags & IDE_HFLAG_SERIALIZE) &&
+ hwif != prev_port) {
/*
- * set nIEN for previous hwif, drives in the
+ * set nIEN for previous port, drives in the
* quirk_list may not like intr setups/cleanups
*/
- if (drive->quirk_list == 0)
- hwif->tp_ops->set_irq(hwif, 0);
+ if (prev_port && prev_port->cur_dev->quirk_list == 0)
+ prev_port->tp_ops->set_irq(prev_port, 0);
+
+ hwif->host->cur_port = hwif;
}
- hwgroup->hwif = hwif;
- hwgroup->drive = drive;
+ hwif->cur_dev = drive;
drive->dev_flags &= ~(IDE_DFLAG_SLEEPING | IDE_DFLAG_PARKED);
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
spin_lock_irq(q->queue_lock);
/*
* we know that the queue isn't empty, but this can happen
*/
rq = elv_next_request(drive->queue);
spin_unlock_irq(q->queue_lock);
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
if (!rq) {
- ide_unlock_hwgroup(hwgroup);
+ ide_unlock_port(hwif);
goto out;
}
blk_pm_request(rq) == 0 &&
(rq->cmd_flags & REQ_PREEMPT) == 0) {
/* there should be no pending command at this point */
- ide_unlock_hwgroup(hwgroup);
+ ide_unlock_port(hwif);
goto plug_device;
}
- hwgroup->rq = rq;
+ hwif->rq = rq;
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
startstop = start_request(drive, rq);
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
if (startstop == ide_stopped)
goto repeat;
} else
goto plug_device;
out:
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
+ if (rq == NULL)
+ ide_unlock_host(host);
spin_lock_irq(q->queue_lock);
return;
plug_device:
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
+ ide_unlock_host(host);
+plug_device_2:
spin_lock_irq(q->queue_lock);
if (!elv_queue_empty(q))
}
/*
- * un-busy the hwgroup etc, and clear any pending DMA status. we want to
+ * un-busy the port etc, and clear any pending DMA status. we want to
* retry the current request in pio mode instead of risking tossing it
* all away
*/
static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct request *rq;
ide_startstop_t ret = ide_stopped;
ide_dma_off_quietly(drive);
/*
- * un-busy drive etc (hwgroup->busy is cleared on return) and
- * make sure request is sane
+ * un-busy drive etc and make sure request is sane
*/
- rq = HWGROUP(drive)->rq;
+ rq = hwif->rq;
if (!rq)
goto out;
- HWGROUP(drive)->rq = NULL;
+ hwif->rq = NULL;
rq->errors = 0;
/**
* ide_timer_expiry - handle lack of an IDE interrupt
- * @data: timer callback magic (hwgroup)
+ * @data: timer callback magic (hwif)
*
* An IDE command has timed out before the expected drive return
* occurred. At this point we attempt to clean up the current
void ide_timer_expiry (unsigned long data)
{
- ide_hwgroup_t *hwgroup = (ide_hwgroup_t *) data;
+ ide_hwif_t *hwif = (ide_hwif_t *)data;
ide_drive_t *uninitialized_var(drive);
ide_handler_t *handler;
- ide_expiry_t *expiry;
unsigned long flags;
unsigned long wait = -1;
int plug_device = 0;
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
- if (((handler = hwgroup->handler) == NULL) ||
- (hwgroup->req_gen != hwgroup->req_gen_timer)) {
+ handler = hwif->handler;
+
+ if (handler == NULL || hwif->req_gen != hwif->req_gen_timer) {
/*
* Either a marginal timeout occurred
* (got the interrupt just as timer expired),
* Either way, we don't really want to complain about anything.
*/
} else {
- drive = hwgroup->drive;
- if (!drive) {
- printk(KERN_ERR "ide_timer_expiry: hwgroup->drive was NULL\n");
- hwgroup->handler = NULL;
- } else {
- ide_hwif_t *hwif;
- ide_startstop_t startstop = ide_stopped;
-
- if ((expiry = hwgroup->expiry) != NULL) {
- /* continue */
- if ((wait = expiry(drive)) > 0) {
- /* reset timer */
- hwgroup->timer.expires = jiffies + wait;
- hwgroup->req_gen_timer = hwgroup->req_gen;
- add_timer(&hwgroup->timer);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
- return;
- }
- }
- hwgroup->handler = NULL;
- /*
- * We need to simulate a real interrupt when invoking
- * the handler() function, which means we need to
- * globally mask the specific IRQ:
- */
- spin_unlock(&hwgroup->lock);
- hwif = HWIF(drive);
- /* disable_irq_nosync ?? */
- disable_irq(hwif->irq);
- /* local CPU only,
- * as if we were handling an interrupt */
- local_irq_disable();
- if (hwgroup->polling) {
- startstop = handler(drive);
- } else if (drive_is_ready(drive)) {
- if (drive->waiting_for_dma)
- hwif->dma_ops->dma_lost_irq(drive);
- (void)ide_ack_intr(hwif);
- printk(KERN_WARNING "%s: lost interrupt\n", drive->name);
- startstop = handler(drive);
- } else {
- if (drive->waiting_for_dma) {
- startstop = ide_dma_timeout_retry(drive, wait);
- } else
- startstop =
- ide_error(drive, "irq timeout",
- hwif->tp_ops->read_status(hwif));
- }
- spin_lock_irq(&hwgroup->lock);
- enable_irq(hwif->irq);
- if (startstop == ide_stopped) {
- ide_unlock_hwgroup(hwgroup);
- plug_device = 1;
+ ide_expiry_t *expiry = hwif->expiry;
+ ide_startstop_t startstop = ide_stopped;
+
+ drive = hwif->cur_dev;
+
+ if (expiry) {
+ wait = expiry(drive);
+ if (wait > 0) { /* continue */
+ /* reset timer */
+ hwif->timer.expires = jiffies + wait;
+ hwif->req_gen_timer = hwif->req_gen;
+ add_timer(&hwif->timer);
+ spin_unlock_irqrestore(&hwif->lock, flags);
+ return;
}
}
+ hwif->handler = NULL;
+ /*
+ * We need to simulate a real interrupt when invoking
+ * the handler() function, which means we need to
+ * globally mask the specific IRQ:
+ */
+ spin_unlock(&hwif->lock);
+ /* disable_irq_nosync ?? */
+ disable_irq(hwif->irq);
+ /* local CPU only, as if we were handling an interrupt */
+ local_irq_disable();
+ if (hwif->polling) {
+ startstop = handler(drive);
+ } else if (drive_is_ready(drive)) {
+ if (drive->waiting_for_dma)
+ hwif->dma_ops->dma_lost_irq(drive);
+ (void)ide_ack_intr(hwif);
+ printk(KERN_WARNING "%s: lost interrupt\n",
+ drive->name);
+ startstop = handler(drive);
+ } else {
+ if (drive->waiting_for_dma)
+ startstop = ide_dma_timeout_retry(drive, wait);
+ else
+ startstop = ide_error(drive, "irq timeout",
+ hwif->tp_ops->read_status(hwif));
+ }
+ spin_lock_irq(&hwif->lock);
+ enable_irq(hwif->irq);
+ if (startstop == ide_stopped) {
+ ide_unlock_port(hwif);
+ plug_device = 1;
+ }
}
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
- if (plug_device)
+ if (plug_device) {
+ ide_unlock_host(hwif->host);
ide_plug_device(drive);
+ }
}
/**
* unexpected_intr - handle an unexpected IDE interrupt
* @irq: interrupt line
- * @hwgroup: hwgroup being processed
+ * @hwif: port being processed
*
* There's nothing really useful we can do with an unexpected interrupt,
* other than reading the status register (to clear it), and logging it.
* before completing the issuance of any new drive command, so we will not
* be accidentally invoked as a result of any valid command completion
* interrupt.
- *
- * Note that we must walk the entire hwgroup here. We know which hwif
- * is doing the current command, but we don't know which hwif burped
- * mysteriously.
*/
-
-static void unexpected_intr (int irq, ide_hwgroup_t *hwgroup)
-{
- u8 stat;
- ide_hwif_t *hwif = hwgroup->hwif;
- /*
- * handle the unexpected interrupt
- */
- do {
- if (hwif->irq == irq) {
- stat = hwif->tp_ops->read_status(hwif);
-
- if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) {
- /* Try to not flood the console with msgs */
- static unsigned long last_msgtime, count;
- ++count;
- if (time_after(jiffies, last_msgtime + HZ)) {
- last_msgtime = jiffies;
- printk(KERN_ERR "%s%s: unexpected interrupt, "
- "status=0x%02x, count=%ld\n",
- hwif->name,
- (hwif->next==hwgroup->hwif) ? "" : "(?)", stat, count);
- }
- }
+static void unexpected_intr(int irq, ide_hwif_t *hwif)
+{
+ u8 stat = hwif->tp_ops->read_status(hwif);
+
+ if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) {
+ /* Try to not flood the console with msgs */
+ static unsigned long last_msgtime, count;
+ ++count;
+
+ if (time_after(jiffies, last_msgtime + HZ)) {
+ last_msgtime = jiffies;
+ printk(KERN_ERR "%s: unexpected interrupt, "
+ "status=0x%02x, count=%ld\n",
+ hwif->name, stat, count);
}
- } while ((hwif = hwif->next) != hwgroup->hwif);
+ }
}
/**
* ide_intr - default IDE interrupt handler
* @irq: interrupt number
- * @dev_id: hwif group
+ * @dev_id: hwif
* @regs: unused weirdness from the kernel irq layer
*
* This is the default IRQ handler for the IDE layer. You should
* not need to override it. If you do be aware it is subtle in
* places
*
- * hwgroup->hwif is the interface in the group currently performing
- * a command. hwgroup->drive is the drive and hwgroup->handler is
+ * hwif is the interface in the group currently performing
+ * a command. hwif->cur_dev is the drive and hwif->handler is
* the IRQ handler to call. As we issue a command the handlers
* step through multiple states, reassigning the handler to the
* next step in the process. Unlike a smart SCSI controller IDE
*
* The handler eventually returns ide_stopped to indicate the
* request completed. At this point we issue the next request
- * on the hwgroup and the process begins again.
+ * on the port and the process begins again.
*/
-
+
irqreturn_t ide_intr (int irq, void *dev_id)
{
- unsigned long flags;
- ide_hwgroup_t *hwgroup = (ide_hwgroup_t *)dev_id;
- ide_hwif_t *hwif = hwgroup->hwif;
+ ide_hwif_t *hwif = (ide_hwif_t *)dev_id;
ide_drive_t *uninitialized_var(drive);
ide_handler_t *handler;
+ unsigned long flags;
ide_startstop_t startstop;
irqreturn_t irq_ret = IRQ_NONE;
int plug_device = 0;
- spin_lock_irqsave(&hwgroup->lock, flags);
+ if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE) {
+ if (hwif != hwif->host->cur_port)
+ goto out_early;
+ }
+
+ spin_lock_irqsave(&hwif->lock, flags);
if (!ide_ack_intr(hwif))
goto out;
- if ((handler = hwgroup->handler) == NULL || hwgroup->polling) {
+ handler = hwif->handler;
+
+ if (handler == NULL || hwif->polling) {
/*
* Not expecting an interrupt from this drive.
* That means this could be:
* Probably not a shared PCI interrupt,
* so we can safely try to do something about it:
*/
- unexpected_intr(irq, hwgroup);
+ unexpected_intr(irq, hwif);
#ifdef CONFIG_BLK_DEV_IDEPCI
} else {
/*
goto out;
}
- drive = hwgroup->drive;
- if (!drive) {
- /*
- * This should NEVER happen, and there isn't much
- * we could do about it here.
- *
- * [Note - this can occur if the drive is hot unplugged]
- */
- goto out_handled;
- }
+ drive = hwif->cur_dev;
if (!drive_is_ready(drive))
/*
*/
goto out;
- hwgroup->handler = NULL;
- hwgroup->req_gen++;
- del_timer(&hwgroup->timer);
- spin_unlock(&hwgroup->lock);
+ hwif->handler = NULL;
+ hwif->req_gen++;
+ del_timer(&hwif->timer);
+ spin_unlock(&hwif->lock);
if (hwif->port_ops && hwif->port_ops->clear_irq)
hwif->port_ops->clear_irq(drive);
/* service this interrupt, may set handler for next interrupt */
startstop = handler(drive);
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
/*
* Note that handler() may have set things up for another
* interrupt to occur soon, but it cannot happen until
* won't allow another of the same (on any CPU) until we return.
*/
if (startstop == ide_stopped) {
- if (hwgroup->handler == NULL) { /* paranoia */
- ide_unlock_hwgroup(hwgroup);
- plug_device = 1;
- } else
- printk(KERN_ERR "%s: %s: huh? expected NULL handler "
- "on exit\n", __func__, drive->name);
+ BUG_ON(hwif->handler);
+ ide_unlock_port(hwif);
+ plug_device = 1;
}
-out_handled:
irq_ret = IRQ_HANDLED;
out:
- spin_unlock_irqrestore(&hwgroup->lock, flags);
-
- if (plug_device)
+ spin_unlock_irqrestore(&hwif->lock, flags);
+out_early:
+ if (plug_device) {
+ ide_unlock_host(hwif->host);
ide_plug_device(drive);
+ }
return irq_ret;
}
void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
struct request_queue *q = drive->queue;
unsigned long flags;
- hwgroup->rq = NULL;
+ drive->hwif->rq = NULL;
spin_lock_irqsave(q->queue_lock, flags);
__elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 0);
- blk_start_queueing(q);
spin_unlock_irqrestore(q->queue_lock, flags);
}
EXPORT_SYMBOL(ide_do_drive_cmd);
}
EXPORT_SYMBOL_GPL(ide_read_altstatus);
-u8 ide_read_sff_dma_status(ide_hwif_t *hwif)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- return readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS));
- else
- return inb(hwif->dma_base + ATA_DMA_STATUS);
-}
-EXPORT_SYMBOL_GPL(ide_read_sff_dma_status);
-
void ide_set_irq(ide_hwif_t *hwif, int on)
{
u8 ctl = ATA_DEVCTL_OBS;
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
*/
int drive_is_ready (ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u8 stat = 0;
if (drive->waiting_for_dma)
stat = tp_ops->read_status(hwif);
if (stat & ATA_BUSY) {
- local_irq_set(flags);
+ local_irq_save(flags);
+ local_irq_enable_in_hardirq();
timeout += jiffies;
while ((stat = tp_ops->read_status(hwif)) & ATA_BUSY) {
if (time_after(jiffies, timeout)) {
static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
unsigned int timeout, ide_expiry_t *expiry)
{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
-
- BUG_ON(hwgroup->handler);
- hwgroup->handler = handler;
- hwgroup->expiry = expiry;
- hwgroup->timer.expires = jiffies + timeout;
- hwgroup->req_gen_timer = hwgroup->req_gen;
- add_timer(&hwgroup->timer);
+ ide_hwif_t *hwif = drive->hwif;
+
+ BUG_ON(hwif->handler);
+ hwif->handler = handler;
+ hwif->expiry = expiry;
+ hwif->timer.expires = jiffies + timeout;
+ hwif->req_gen_timer = hwif->req_gen;
+ add_timer(&hwif->timer);
}
void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
unsigned int timeout, ide_expiry_t *expiry)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL(ide_set_handler);
unsigned timeout, ide_expiry_t *expiry)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
unsigned long flags;
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
hwif->tp_ops->exec_command(hwif, cmd);
/*
* FIXME: we could skip this delay with care on non shared devices
*/
ndelay(400);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL(ide_execute_command);
void ide_execute_pkt_cmd(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
unsigned long flags;
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
hwif->tp_ops->exec_command(hwif, ATA_CMD_PACKET);
ndelay(400);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
{
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;
if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
ide_end_request(drive, err ? err : 1, 0);
static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
u8 stat;
SELECT_DRIVE(drive);
if (OK_STAT(stat, 0, ATA_BUSY))
printk("%s: ATAPI reset complete\n", drive->name);
else {
- if (time_before(jiffies, hwgroup->poll_timeout)) {
+ if (time_before(jiffies, hwif->poll_timeout)) {
ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
}
/* end of polling */
- hwgroup->polling = 0;
+ hwif->polling = 0;
printk("%s: ATAPI reset timed-out, status=0x%02x\n",
drive->name, stat);
/* do it the old fashioned way */
return do_reset1(drive, 1);
}
/* done polling */
- hwgroup->polling = 0;
+ hwif->polling = 0;
ide_complete_drive_reset(drive, 0);
return ide_stopped;
}
*/
static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
const struct ide_port_ops *port_ops = hwif->port_ops;
u8 tmp;
int err = 0;
tmp = hwif->tp_ops->read_status(hwif);
if (!OK_STAT(tmp, 0, ATA_BUSY)) {
- if (time_before(jiffies, hwgroup->poll_timeout)) {
+ if (time_before(jiffies, hwif->poll_timeout)) {
ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
}
}
out:
- hwgroup->polling = 0; /* done polling */
+ hwif->polling = 0; /* done polling */
ide_complete_drive_reset(drive, err);
return ide_stopped;
}
static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
struct ide_io_ports *io_ports = &hwif->io_ports;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
const struct ide_port_ops *port_ops;
+ ide_drive_t *tdrive;
unsigned long flags, timeout;
- unsigned int unit;
+ int i;
DEFINE_WAIT(wait);
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
/* We must not reset with running handlers */
- BUG_ON(hwgroup->handler != NULL);
+ BUG_ON(hwif->handler != NULL);
/* For an ATAPI device, first try an ATAPI SRST. */
if (drive->media != ide_disk && !do_not_try_atapi) {
udelay (20);
tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
ndelay(400);
- hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwgroup->polling = 1;
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
return ide_started;
}
prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
timeout = jiffies;
- for (unit = 0; unit < MAX_DRIVES; unit++) {
- ide_drive_t *tdrive = &hwif->drives[unit];
-
+ ide_port_for_each_dev(i, tdrive, hwif) {
if (tdrive->dev_flags & IDE_DFLAG_PRESENT &&
tdrive->dev_flags & IDE_DFLAG_PARKED &&
time_after(tdrive->sleep, timeout))
if (time_before_eq(timeout, now))
break;
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
timeout = schedule_timeout_uninterruptible(timeout - now);
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
} while (timeout);
finish_wait(&ide_park_wq, &wait);
* First, reset any device state data we were maintaining
* for any of the drives on this interface.
*/
- for (unit = 0; unit < MAX_DRIVES; ++unit)
- pre_reset(&hwif->drives[unit]);
+ ide_port_for_each_dev(i, tdrive, hwif)
+ pre_reset(tdrive);
if (io_ports->ctl_addr == 0) {
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
ide_complete_drive_reset(drive, -ENXIO);
return ide_stopped;
}
tp_ops->set_irq(hwif, drive->quirk_list == 2);
/* more than enough time */
udelay(10);
- hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwgroup->polling = 1;
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
/*
if (port_ops && port_ops->resetproc)
port_ops->resetproc(drive);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
return ide_started;
}
}
return -EBUSY;
}
-
-EXPORT_SYMBOL_GPL(ide_wait_not_busy);
-
static void ide_dump_opcode(ide_drive_t *drive)
{
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;
ide_task_t *task = NULL;
if (!rq)
printk(KERN_CONT "}");
if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
(err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
+ struct request *rq = drive->hwif->rq;
+
ide_dump_sector(drive);
- if (HWGROUP(drive) && HWGROUP(drive)->rq)
+
+ if (rq)
printk(KERN_CONT ", sector=%llu",
- (unsigned long long)HWGROUP(drive)->rq->sector);
+ (unsigned long long)rq->sector);
}
printk(KERN_CONT "\n");
}
static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;
struct request_queue *q = drive->queue;
struct request *rq;
int rc;
timeout += jiffies;
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
if (drive->dev_flags & IDE_DFLAG_PARKED) {
int reset_timer = time_before(timeout, drive->sleep);
int start_queue = 0;
drive->sleep = timeout;
wake_up_all(&ide_park_wq);
- if (reset_timer && del_timer(&hwgroup->timer))
+ if (reset_timer && del_timer(&hwif->timer))
start_queue = 1;
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
if (start_queue) {
spin_lock_irq(q->queue_lock);
}
return;
}
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
rq = blk_get_request(q, READ, __GFP_WAIT);
rq->cmd[0] = REQ_PARK_HEADS;
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;
unsigned long now;
unsigned int msecs;
if (drive->dev_flags & IDE_DFLAG_NO_UNLOAD)
return -EOPNOTSUPP;
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
now = jiffies;
if (drive->dev_flags & IDE_DFLAG_PARKED &&
time_after(drive->sleep, now))
msecs = jiffies_to_msecs(drive->sleep - now);
else
msecs = 0;
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
return snprintf(buf, 20, "%u\n", msecs);
}
int generic_ide_suspend(struct device *dev, pm_message_t mesg)
{
ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive);
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct request *rq;
struct request_pm_state rqpm;
ide_task_t args;
int generic_ide_resume(struct device *dev)
{
ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive);
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct request *rq;
struct request_pm_state rqpm;
ide_task_t args;
blk_put_request(rq);
if (err == 0 && dev->driver) {
- ide_driver_t *drv = to_ide_driver(dev->driver);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
if (drv->resume)
drv->resume(drive);
}
spin_unlock_irqrestore(q->queue_lock, flags);
- drive->hwif->hwgroup->rq = NULL;
+ drive->hwif->rq = NULL;
if (blk_end_request(rq, 0, 0))
BUG();
static void do_identify(ide_drive_t *drive, u8 cmd)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u16 *id = drive->id;
char *m = (char *)&id[ATA_ID_PROD];
unsigned long flags;
static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int use_altstatus = 0, rc;
static int try_to_identify (ide_drive_t *drive, u8 cmd)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int retval;
int autoprobe = 0;
static int do_probe (ide_drive_t *drive, u8 cmd)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int rc;
u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat;
if (ide_read_device(drive) != drive->select && present == 0) {
if (drive->dn & 1) {
/* exit with drive0 selected */
- SELECT_DRIVE(&hwif->drives[0]);
+ SELECT_DRIVE(hwif->devices[0]);
/* allow ATA_BUSY to assert & clear */
msleep(50);
}
}
if (drive->dn & 1) {
/* exit with drive0 selected */
- SELECT_DRIVE(&hwif->drives[0]);
+ SELECT_DRIVE(hwif->devices[0]);
msleep(50);
/* ensure drive irq is clear */
(void)tp_ops->read_status(hwif);
*/
static void enable_nest (ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
u8 stat;
static int ide_port_wait_ready(ide_hwif_t *hwif)
{
- int unit, rc;
+ ide_drive_t *drive;
+ int i, rc;
printk(KERN_DEBUG "Probing IDE interface %s...\n", hwif->name);
return rc;
/* Now make sure both master & slave are ready */
- for (unit = 0; unit < MAX_DRIVES; unit++) {
- ide_drive_t *drive = &hwif->drives[unit];
-
+ ide_port_for_each_dev(i, drive, hwif) {
/* Ignore disks that we will not probe for later. */
if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0 ||
(drive->dev_flags & IDE_DFLAG_PRESENT)) {
}
out:
/* Exit function with master reselected (let's be sane) */
- if (unit)
- SELECT_DRIVE(&hwif->drives[0]);
+ if (i)
+ SELECT_DRIVE(hwif->devices[0]);
return rc;
}
void ide_undecoded_slave(ide_drive_t *dev1)
{
- ide_drive_t *dev0 = &dev1->hwif->drives[0];
+ ide_drive_t *dev0 = dev1->hwif->devices[0];
if ((dev1->dn & 1) == 0 || (dev0->dev_flags & IDE_DFLAG_PRESENT) == 0)
return;
static int ide_probe_port(ide_hwif_t *hwif)
{
+ ide_drive_t *drive;
unsigned long flags;
unsigned int irqd;
- int unit, rc = -ENODEV;
+ int i, rc = -ENODEV;
BUG_ON(hwif->present);
- if ((hwif->drives[0].dev_flags & IDE_DFLAG_NOPROBE) &&
- (hwif->drives[1].dev_flags & IDE_DFLAG_NOPROBE))
+ if ((hwif->devices[0]->dev_flags & IDE_DFLAG_NOPROBE) &&
+ (hwif->devices[1]->dev_flags & IDE_DFLAG_NOPROBE))
return -EACCES;
/*
if (irqd)
disable_irq(hwif->irq);
- local_irq_set(flags);
+ local_irq_save(flags);
+ local_irq_enable_in_hardirq();
if (ide_port_wait_ready(hwif) == -EBUSY)
printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name);
* Second drive should only exist if first drive was found,
* but a lot of cdrom drives are configured as single slaves.
*/
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
-
+ ide_port_for_each_dev(i, drive, hwif) {
(void) probe_for_drive(drive);
if (drive->dev_flags & IDE_DFLAG_PRESENT)
rc = 0;
static void ide_port_tune_devices(ide_hwif_t *hwif)
{
const struct ide_port_ops *port_ops = hwif->port_ops;
- int unit;
-
- for (unit = 0; unit < MAX_DRIVES; unit++) {
- ide_drive_t *drive = &hwif->drives[unit];
+ ide_drive_t *drive;
+ int i;
+ ide_port_for_each_dev(i, drive, hwif) {
if (drive->dev_flags & IDE_DFLAG_PRESENT) {
if (port_ops && port_ops->quirkproc)
port_ops->quirkproc(drive);
}
}
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
-
+ ide_port_for_each_dev(i, drive, hwif) {
if (drive->dev_flags & IDE_DFLAG_PRESENT) {
ide_set_max_pio(drive);
}
}
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
-
- if ((hwif->host_flags & IDE_HFLAG_NO_IO_32BIT) ||
- drive->id[ATA_ID_DWORD_IO])
+ ide_port_for_each_dev(i, drive, hwif) {
+ if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT)
drive->dev_flags |= IDE_DFLAG_NO_IO_32BIT;
else
drive->dev_flags &= ~IDE_DFLAG_NO_IO_32BIT;
static int ide_init_queue(ide_drive_t *drive)
{
struct request_queue *q;
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
int max_sectors = 256;
int max_sg_entries = PRD_ENTRIES;
return 0;
}
-static void ide_add_drive_to_hwgroup(ide_drive_t *drive)
-{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
-
- spin_lock_irq(&hwgroup->lock);
- if (!hwgroup->drive) {
- /* first drive for hwgroup. */
- drive->next = drive;
- hwgroup->drive = drive;
- hwgroup->hwif = HWIF(hwgroup->drive);
- } else {
- drive->next = hwgroup->drive->next;
- hwgroup->drive->next = drive;
- }
- spin_unlock_irq(&hwgroup->lock);
-}
+static DEFINE_MUTEX(ide_cfg_mtx);
/*
* For any present drive:
* - allocate the block device queue
- * - link drive into the hwgroup
*/
static int ide_port_setup_devices(ide_hwif_t *hwif)
{
+ ide_drive_t *drive;
int i, j = 0;
mutex_lock(&ide_cfg_mtx);
- for (i = 0; i < MAX_DRIVES; i++) {
- ide_drive_t *drive = &hwif->drives[i];
-
+ ide_port_for_each_dev(i, drive, hwif) {
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
}
j++;
-
- ide_add_drive_to_hwgroup(drive);
}
mutex_unlock(&ide_cfg_mtx);
return j;
}
-static ide_hwif_t *ide_ports[MAX_HWIFS];
-
-void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
-{
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
-
- ide_ports[hwif->index] = NULL;
-
- spin_lock_irq(&hwgroup->lock);
- /*
- * Remove us from the hwgroup, and free
- * the hwgroup if we were the only member
- */
- if (hwif->next == hwif) {
- BUG_ON(hwgroup->hwif != hwif);
- kfree(hwgroup);
- } else {
- /* There is another interface in hwgroup.
- * Unlink us, and set hwgroup->drive and ->hwif to
- * something sane.
- */
- ide_hwif_t *g = hwgroup->hwif;
-
- while (g->next != hwif)
- g = g->next;
- g->next = hwif->next;
- if (hwgroup->hwif == hwif) {
- /* Chose a random hwif for hwgroup->hwif.
- * It's guaranteed that there are no drives
- * left in the hwgroup.
- */
- BUG_ON(hwgroup->drive != NULL);
- hwgroup->hwif = g;
- }
- BUG_ON(hwgroup->hwif == hwif);
- }
- spin_unlock_irq(&hwgroup->lock);
-}
-
/*
- * This routine sets up the irq for an ide interface, and creates a new
- * hwgroup for the irq/hwif if none was previously assigned.
- *
- * Much of the code is for correctly detecting/handling irq sharing
- * and irq serialization situations. This is somewhat complex because
- * it handles static as well as dynamic (PCMCIA) IDE interfaces.
+ * This routine sets up the IRQ for an IDE interface.
*/
static int init_irq (ide_hwif_t *hwif)
{
struct ide_io_ports *io_ports = &hwif->io_ports;
- unsigned int index;
- ide_hwgroup_t *hwgroup;
- ide_hwif_t *match = NULL;
+ int sa = 0;
mutex_lock(&ide_cfg_mtx);
- hwif->hwgroup = NULL;
+ spin_lock_init(&hwif->lock);
- for (index = 0; index < MAX_HWIFS; index++) {
- ide_hwif_t *h = ide_ports[index];
+ init_timer(&hwif->timer);
+ hwif->timer.function = &ide_timer_expiry;
+ hwif->timer.data = (unsigned long)hwif;
- if (h && h->hwgroup) { /* scan only initialized ports */
- if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE) {
- if (hwif->host == h->host)
- match = h;
- }
- }
- }
-
- /*
- * If we are still without a hwgroup, then form a new one
- */
- if (match) {
- hwgroup = match->hwgroup;
- hwif->hwgroup = hwgroup;
- /*
- * Link us into the hwgroup.
- * This must be done early, do ensure that unexpected_intr
- * can find the hwif and prevent irq storms.
- * No drives are attached to the new hwif, choose_drive
- * can't do anything stupid (yet).
- * Add ourself as the 2nd entry to the hwgroup->hwif
- * linked list, the first entry is the hwif that owns
- * hwgroup->handler - do not change that.
- */
- spin_lock_irq(&hwgroup->lock);
- hwif->next = hwgroup->hwif->next;
- hwgroup->hwif->next = hwif;
- BUG_ON(hwif->next == hwif);
- spin_unlock_irq(&hwgroup->lock);
- } else {
- hwgroup = kmalloc_node(sizeof(*hwgroup), GFP_KERNEL|__GFP_ZERO,
- hwif_to_node(hwif));
- if (hwgroup == NULL)
- goto out_up;
-
- spin_lock_init(&hwgroup->lock);
-
- hwif->hwgroup = hwgroup;
- hwgroup->hwif = hwif->next = hwif;
-
- init_timer(&hwgroup->timer);
- hwgroup->timer.function = &ide_timer_expiry;
- hwgroup->timer.data = (unsigned long) hwgroup;
- }
-
- ide_ports[hwif->index] = hwif;
-
- /*
- * Allocate the irq, if not already obtained for another hwif
- */
- if (!match || match->irq != hwif->irq) {
- int sa = 0;
#if defined(__mc68000__)
- sa = IRQF_SHARED;
+ sa = IRQF_SHARED;
#endif /* __mc68000__ */
- if (hwif->chipset == ide_pci)
- sa = IRQF_SHARED;
+ if (hwif->chipset == ide_pci)
+ sa = IRQF_SHARED;
- if (io_ports->ctl_addr)
- hwif->tp_ops->set_irq(hwif, 1);
+ if (io_ports->ctl_addr)
+ hwif->tp_ops->set_irq(hwif, 1);
- if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup))
- goto out_unlink;
- }
+ if (request_irq(hwif->irq, &ide_intr, sa, hwif->name, hwif))
+ goto out_up;
if (!hwif->rqsize) {
if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
printk(KERN_INFO "%s at 0x%08lx on irq %d", hwif->name,
io_ports->data_addr, hwif->irq);
#endif /* __mc68000__ */
- if (match)
- printk(KERN_CONT " (serialized with %s)", match->name);
+ if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE)
+ printk(KERN_CONT " (serialized)");
printk(KERN_CONT "\n");
mutex_unlock(&ide_cfg_mtx);
return 0;
-out_unlink:
- ide_remove_port_from_hwgroup(hwif);
out_up:
mutex_unlock(&ide_cfg_mtx);
return 1;
{
ide_hwif_t *hwif = data;
int unit = *part >> PARTN_BITS;
- ide_drive_t *drive = &hwif->drives[unit];
+ ide_drive_t *drive = hwif->devices[unit];
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
return NULL;
EXPORT_SYMBOL_GPL(ide_init_disk);
-static void ide_remove_drive_from_hwgroup(ide_drive_t *drive)
-{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
-
- if (drive == drive->next) {
- /* special case: last drive from hwgroup. */
- BUG_ON(hwgroup->drive != drive);
- hwgroup->drive = NULL;
- } else {
- ide_drive_t *walk;
-
- walk = hwgroup->drive;
- while (walk->next != drive)
- walk = walk->next;
- walk->next = drive->next;
- if (hwgroup->drive == drive) {
- hwgroup->drive = drive->next;
- hwgroup->hwif = hwgroup->drive->hwif;
- }
- }
- BUG_ON(hwgroup->drive == drive);
-}
-
static void drive_release_dev (struct device *dev)
{
ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;
ide_proc_unregister_device(drive);
- spin_lock_irq(&hwgroup->lock);
- ide_remove_drive_from_hwgroup(drive);
+ spin_lock_irq(&hwif->lock);
kfree(drive->id);
drive->id = NULL;
drive->dev_flags &= ~IDE_DFLAG_PRESENT;
/* Messed up locking ... */
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
blk_cleanup_queue(drive->queue);
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
drive->queue = NULL;
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
complete(&drive->gendev_rel_comp);
}
static void hwif_register_devices(ide_hwif_t *hwif)
{
+ ide_drive_t *drive;
unsigned int i;
- for (i = 0; i < MAX_DRIVES; i++) {
- ide_drive_t *drive = &hwif->drives[i];
+ ide_port_for_each_dev(i, drive, hwif) {
struct device *dev = &drive->gendev;
int ret;
static void ide_port_init_devices(ide_hwif_t *hwif)
{
const struct ide_port_ops *port_ops = hwif->port_ops;
+ ide_drive_t *drive;
int i;
- for (i = 0; i < MAX_DRIVES; i++) {
- ide_drive_t *drive = &hwif->drives[i];
-
+ ide_port_for_each_dev(i, drive, hwif) {
drive->dn = i + hwif->channel * 2;
if (hwif->host_flags & IDE_HFLAG_IO_32BIT)
if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) {
int rc;
+ hwif->dma_ops = d->dma_ops;
+
if (d->init_dma)
rc = d->init_dma(hwif, d);
else
if (rc < 0) {
printk(KERN_INFO "%s: DMA disabled\n", hwif->name);
+
+ hwif->dma_ops = NULL;
hwif->dma_base = 0;
hwif->swdma_mask = 0;
hwif->mwdma_mask = 0;
hwif->ultra_mask = 0;
- } else if (d->dma_ops)
- hwif->dma_ops = d->dma_ops;
+ }
}
if ((d->host_flags & IDE_HFLAG_SERIALIZE) ||
}
}
+static const u8 ide_hwif_to_major[] =
+ { IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR, IDE4_MAJOR,
+ IDE5_MAJOR, IDE6_MAJOR, IDE7_MAJOR, IDE8_MAJOR, IDE9_MAJOR };
+
+static void ide_port_init_devices_data(ide_hwif_t *hwif)
+{
+ ide_drive_t *drive;
+ int i;
+
+ ide_port_for_each_dev(i, drive, hwif) {
+ u8 j = (hwif->index * MAX_DRIVES) + i;
+
+ memset(drive, 0, sizeof(*drive));
+
+ drive->media = ide_disk;
+ drive->select = (i << 4) | ATA_DEVICE_OBS;
+ drive->hwif = hwif;
+ drive->ready_stat = ATA_DRDY;
+ drive->bad_wstat = BAD_W_STAT;
+ drive->special.b.recalibrate = 1;
+ drive->special.b.set_geometry = 1;
+ drive->name[0] = 'h';
+ drive->name[1] = 'd';
+ drive->name[2] = 'a' + j;
+ drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
+
+ INIT_LIST_HEAD(&drive->list);
+ init_completion(&drive->gendev_rel_comp);
+ }
+}
+
+static void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
+{
+ /* fill in any non-zero initial values */
+ hwif->index = index;
+ hwif->major = ide_hwif_to_major[index];
+
+ hwif->name[0] = 'i';
+ hwif->name[1] = 'd';
+ hwif->name[2] = 'e';
+ hwif->name[3] = '0' + index;
+
+ init_completion(&hwif->gendev_rel_comp);
+
+ hwif->tp_ops = &default_tp_ops;
+
+ ide_port_init_devices_data(hwif);
+}
+
+static void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
+{
+ memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
+ hwif->irq = hw->irq;
+ hwif->chipset = hw->chipset;
+ hwif->dev = hw->dev;
+ hwif->gendev.parent = hw->parent ? hw->parent : hw->dev;
+ hwif->ack_intr = hw->ack_intr;
+ hwif->config_data = hw->config;
+}
+
static unsigned int ide_indexes;
/**
mutex_unlock(&ide_cfg_mtx);
}
+static void ide_port_free_devices(ide_hwif_t *hwif)
+{
+ ide_drive_t *drive;
+ int i;
+
+ ide_port_for_each_dev(i, drive, hwif)
+ kfree(drive);
+}
+
+static int ide_port_alloc_devices(ide_hwif_t *hwif, int node)
+{
+ int i;
+
+ for (i = 0; i < MAX_DRIVES; i++) {
+ ide_drive_t *drive;
+
+ drive = kzalloc_node(sizeof(*drive), GFP_KERNEL, node);
+ if (drive == NULL)
+ goto out_nomem;
+
+ hwif->devices[i] = drive;
+ }
+ return 0;
+
+out_nomem:
+ ide_port_free_devices(hwif);
+ return -ENOMEM;
+}
+
struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws)
{
struct ide_host *host;
+ struct device *dev = hws[0] ? hws[0]->dev : NULL;
+ int node = dev ? dev_to_node(dev) : -1;
int i;
- host = kzalloc(sizeof(*host), GFP_KERNEL);
+ host = kzalloc_node(sizeof(*host), GFP_KERNEL, node);
if (host == NULL)
return NULL;
if (hws[i] == NULL)
continue;
- hwif = kzalloc(sizeof(*hwif), GFP_KERNEL);
+ hwif = kzalloc_node(sizeof(*hwif), GFP_KERNEL, node);
if (hwif == NULL)
continue;
+ if (ide_port_alloc_devices(hwif, node) < 0) {
+ kfree(hwif);
+ continue;
+ }
+
idx = ide_find_port_slot(d);
if (idx < 0) {
printk(KERN_ERR "%s: no free slot for interface\n",
return NULL;
}
- if (hws[0])
- host->dev[0] = hws[0]->dev;
+ host->dev[0] = dev;
if (d) {
host->init_chipset = d->init_chipset;
ide_hwif_t *hwif, *mate = NULL;
int i, j = 0;
- for (i = 0; i < MAX_HOST_PORTS; i++) {
- hwif = host->ports[i];
-
+ ide_host_for_each_port(i, hwif, host) {
if (hwif == NULL) {
mate = NULL;
continue;
ide_port_init_devices(hwif);
}
- for (i = 0; i < MAX_HOST_PORTS; i++) {
- hwif = host->ports[i];
-
+ ide_host_for_each_port(i, hwif, host) {
if (hwif == NULL)
continue;
ide_port_tune_devices(hwif);
}
- for (i = 0; i < MAX_HOST_PORTS; i++) {
- hwif = host->ports[i];
-
+ ide_host_for_each_port(i, hwif, host) {
if (hwif == NULL)
continue;
ide_acpi_port_init_devices(hwif);
}
- for (i = 0; i < MAX_HOST_PORTS; i++) {
- hwif = host->ports[i];
-
+ ide_host_for_each_port(i, hwif, host) {
if (hwif == NULL)
continue;
hwif_register_devices(hwif);
}
- for (i = 0; i < MAX_HOST_PORTS; i++) {
- hwif = host->ports[i];
-
+ ide_host_for_each_port(i, hwif, host) {
if (hwif == NULL)
continue;
}
EXPORT_SYMBOL_GPL(ide_host_add);
+static void __ide_port_unregister_devices(ide_hwif_t *hwif)
+{
+ ide_drive_t *drive;
+ int i;
+
+ ide_port_for_each_dev(i, drive, hwif) {
+ if (drive->dev_flags & IDE_DFLAG_PRESENT) {
+ device_unregister(&drive->gendev);
+ wait_for_completion(&drive->gendev_rel_comp);
+ }
+ }
+}
+
+void ide_port_unregister_devices(ide_hwif_t *hwif)
+{
+ mutex_lock(&ide_cfg_mtx);
+ __ide_port_unregister_devices(hwif);
+ hwif->present = 0;
+ ide_port_init_devices_data(hwif);
+ mutex_unlock(&ide_cfg_mtx);
+}
+EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
+
+/**
+ * ide_unregister - free an IDE interface
+ * @hwif: IDE interface
+ *
+ * Perform the final unregister of an IDE interface.
+ *
+ * Locking:
+ * The caller must not hold the IDE locks.
+ *
+ * It is up to the caller to be sure there is no pending I/O here,
+ * and that the interface will not be reopened (present/vanishing
+ * locking isn't yet done BTW).
+ */
+
+static void ide_unregister(ide_hwif_t *hwif)
+{
+ BUG_ON(in_interrupt());
+ BUG_ON(irqs_disabled());
+
+ mutex_lock(&ide_cfg_mtx);
+
+ if (hwif->present) {
+ __ide_port_unregister_devices(hwif);
+ hwif->present = 0;
+ }
+
+ ide_proc_unregister_port(hwif);
+
+ free_irq(hwif->irq, hwif);
+
+ device_unregister(hwif->portdev);
+ device_unregister(&hwif->gendev);
+ wait_for_completion(&hwif->gendev_rel_comp);
+
+ /*
+ * Remove us from the kernel's knowledge
+ */
+ blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
+ kfree(hwif->sg_table);
+ unregister_blkdev(hwif->major, hwif->name);
+
+ ide_release_dma_engine(hwif);
+
+ mutex_unlock(&ide_cfg_mtx);
+}
+
void ide_host_free(struct ide_host *host)
{
ide_hwif_t *hwif;
int i;
- for (i = 0; i < MAX_HOST_PORTS; i++) {
- hwif = host->ports[i];
-
+ ide_host_for_each_port(i, hwif, host) {
if (hwif == NULL)
continue;
+ ide_port_free_devices(hwif);
ide_free_port_slot(hwif->index);
kfree(hwif);
}
void ide_host_remove(struct ide_host *host)
{
+ ide_hwif_t *hwif;
int i;
- for (i = 0; i < MAX_HOST_PORTS; i++) {
- if (host->ports[i])
- ide_unregister(host->ports[i]);
+ ide_host_for_each_port(i, hwif, host) {
+ if (hwif)
+ ide_unregister(hwif);
}
ide_host_free(host);
hwif->present = 1;
ide_port_tune_devices(hwif);
- ide_acpi_port_init_devices(hwif);
ide_port_setup_devices(hwif);
+ ide_acpi_port_init_devices(hwif);
hwif_register_devices(hwif);
ide_proc_port_register_devices(hwif);
}
static int proc_ide_read_driver
(char *page, char **start, off_t off, int count, int *eof, void *data)
{
- ide_drive_t *drive = (ide_drive_t *) data;
- struct device *dev = &drive->gendev;
- ide_driver_t *ide_drv;
- int len;
+ ide_drive_t *drive = (ide_drive_t *)data;
+ struct device *dev = &drive->gendev;
+ struct ide_driver *ide_drv;
+ int len;
if (dev->driver) {
- ide_drv = container_of(dev->driver, ide_driver_t, gen_driver);
+ ide_drv = to_ide_driver(dev->driver);
len = sprintf(page, "%s version %s\n",
dev->driver->name, ide_drv->version);
} else
}
}
-void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver)
+void ide_proc_register_driver(ide_drive_t *drive, struct ide_driver *driver)
{
mutex_lock(&ide_setting_mtx);
drive->settings = driver->proc_devsets(drive);
* Takes ide_setting_mtx.
*/
-void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver)
+void ide_proc_unregister_driver(ide_drive_t *drive, struct ide_driver *driver)
{
ide_remove_proc_entries(drive->proc, driver->proc_entries(drive));
void ide_proc_port_register_devices(ide_hwif_t *hwif)
{
- int d;
struct proc_dir_entry *ent;
struct proc_dir_entry *parent = hwif->proc;
+ ide_drive_t *drive;
char name[64];
+ int i;
- for (d = 0; d < MAX_DRIVES; d++) {
- ide_drive_t *drive = &hwif->drives[d];
-
+ ide_port_for_each_dev(i, drive, hwif) {
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0 || drive->proc)
continue;
static int proc_print_driver(struct device_driver *drv, void *data)
{
- ide_driver_t *ide_drv = container_of(drv, ide_driver_t, gen_driver);
+ struct ide_driver *ide_drv = to_ide_driver(drv);
struct seq_file *s = data;
seq_printf(s, "%s version %s\n", drv->name, ide_drv->version);
* to an interrupt or a timer event is stored in the struct defined below.
*/
typedef struct ide_tape_obj {
- ide_drive_t *drive;
- ide_driver_t *driver;
- struct gendisk *disk;
- struct kref kref;
+ ide_drive_t *drive;
+ struct ide_driver *driver;
+ struct gendisk *disk;
+ struct kref kref;
/*
* failed_pc points to the last failed packet command, or contains
static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
idetape_tape_t *tape = drive->driver_data;
unsigned long flags;
int error;
printk(KERN_ERR "ide-tape: Error in REQUEST SENSE "
"itself - Aborting request!\n");
} else if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) {
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;
int blocks = pc->xferred / tape->blk_size;
tape->avg_size += blocks * tape->blk_size;
/*
* Postpone the current request so that ide.c will be able to service requests
- * from another device on the same hwgroup while we are polling for DSC.
+ * from another device on the same port while we are polling for DSC.
*/
static void idetape_postpone_request(ide_drive_t *drive)
{
debug_log(DBG_PROCS, "Enter %s\n", __func__);
- tape->postponed_rq = HWGROUP(drive)->rq;
+ tape->postponed_rq = drive->hwif->rq;
+
ide_stall_queue(drive, tape->dsc_poll_freq);
}
static int ide_tape_probe(ide_drive_t *);
-static ide_driver_t idetape_driver = {
+static struct ide_driver idetape_driver = {
.gen_driver = {
.owner = THIS_MODULE,
.name = "ide-tape",
.version = IDETAPE_VERSION,
.do_request = idetape_do_request,
.end_request = idetape_end_request,
- .error = __ide_error,
#ifdef CONFIG_IDE_PROC_FS
.proc_entries = ide_tape_proc_entries,
.proc_devsets = ide_tape_proc_devsets,
ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct ide_taskfile *tf = &task->tf;
ide_handler_t *handler = NULL;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
}
if (sectors > 0) {
- ide_driver_t *drv;
+ struct ide_driver *drv;
- drv = *(ide_driver_t **)rq->rq_disk->private_data;
+ drv = *(struct ide_driver **)rq->rq_disk->private_data;
drv->end_request(drive, 1, sectors);
}
}
}
if (rq->rq_disk) {
- ide_driver_t *drv;
+ struct ide_driver *drv;
- drv = *(ide_driver_t **)rq->rq_disk->private_data;;
+ drv = *(struct ide_driver **)rq->rq_disk->private_data;;
drv->end_request(drive, 1, rq->nr_sectors);
} else
ide_end_request(drive, 1, rq->nr_sectors);
static ide_startstop_t task_in_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
u8 stat = hwif->tp_ops->read_status(hwif);
/* Error? */
static ide_startstop_t task_out_intr (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
u8 stat = hwif->tp_ops->read_status(hwif);
if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
#include <linux/completion.h>
#include <linux/device.h>
-
-/* default maximum number of failures */
-#define IDE_DEFAULT_MAX_FAILURES 1
-
struct class *ide_port_class;
-static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
- IDE2_MAJOR, IDE3_MAJOR,
- IDE4_MAJOR, IDE5_MAJOR,
- IDE6_MAJOR, IDE7_MAJOR,
- IDE8_MAJOR, IDE9_MAJOR };
-
-DEFINE_MUTEX(ide_cfg_mtx);
-
-static void ide_port_init_devices_data(ide_hwif_t *);
-
-/*
- * Do not even *think* about calling this!
- */
-void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
-{
- /* bulk initialize hwif & drive info with zeros */
- memset(hwif, 0, sizeof(ide_hwif_t));
-
- /* fill in any non-zero initial values */
- hwif->index = index;
- hwif->major = ide_hwif_to_major[index];
-
- hwif->name[0] = 'i';
- hwif->name[1] = 'd';
- hwif->name[2] = 'e';
- hwif->name[3] = '0' + index;
-
- init_completion(&hwif->gendev_rel_comp);
-
- hwif->tp_ops = &default_tp_ops;
-
- ide_port_init_devices_data(hwif);
-}
-
-static void ide_port_init_devices_data(ide_hwif_t *hwif)
-{
- int unit;
-
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
- u8 j = (hwif->index * MAX_DRIVES) + unit;
-
- memset(drive, 0, sizeof(*drive));
-
- drive->media = ide_disk;
- drive->select = (unit << 4) | ATA_DEVICE_OBS;
- drive->hwif = hwif;
- drive->ready_stat = ATA_DRDY;
- drive->bad_wstat = BAD_W_STAT;
- drive->special.b.recalibrate = 1;
- drive->special.b.set_geometry = 1;
- drive->name[0] = 'h';
- drive->name[1] = 'd';
- drive->name[2] = 'a' + j;
- drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
-
- INIT_LIST_HEAD(&drive->list);
- init_completion(&drive->gendev_rel_comp);
- }
-}
-
-static void __ide_port_unregister_devices(ide_hwif_t *hwif)
-{
- int i;
-
- for (i = 0; i < MAX_DRIVES; i++) {
- ide_drive_t *drive = &hwif->drives[i];
-
- if (drive->dev_flags & IDE_DFLAG_PRESENT) {
- device_unregister(&drive->gendev);
- wait_for_completion(&drive->gendev_rel_comp);
- }
- }
-}
-
-void ide_port_unregister_devices(ide_hwif_t *hwif)
-{
- mutex_lock(&ide_cfg_mtx);
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
- ide_port_init_devices_data(hwif);
- mutex_unlock(&ide_cfg_mtx);
-}
-EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
-
-/**
- * ide_unregister - free an IDE interface
- * @hwif: IDE interface
- *
- * Perform the final unregister of an IDE interface. At the moment
- * we don't refcount interfaces so this will also get split up.
- *
- * Locking:
- * The caller must not hold the IDE locks
- * The drive present/vanishing is not yet properly locked
- * Take care with the callbacks. These have been split to avoid
- * deadlocking the IDE layer. The shutdown callback is called
- * before we take the lock and free resources. It is up to the
- * caller to be sure there is no pending I/O here, and that
- * the interface will not be reopened (present/vanishing locking
- * isn't yet done BTW). After we commit to the final kill we
- * call the cleanup callback with the ide locks held.
- *
- * Unregister restores the hwif structures to the default state.
- * This is raving bonkers.
- */
-
-void ide_unregister(ide_hwif_t *hwif)
-{
- ide_hwif_t *g;
- ide_hwgroup_t *hwgroup;
- int irq_count = 0;
-
- BUG_ON(in_interrupt());
- BUG_ON(irqs_disabled());
-
- mutex_lock(&ide_cfg_mtx);
-
- if (hwif->present) {
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
- }
-
- ide_proc_unregister_port(hwif);
-
- hwgroup = hwif->hwgroup;
- /*
- * free the irq if we were the only hwif using it
- */
- g = hwgroup->hwif;
- do {
- if (g->irq == hwif->irq)
- ++irq_count;
- g = g->next;
- } while (g != hwgroup->hwif);
- if (irq_count == 1)
- free_irq(hwif->irq, hwgroup);
-
- ide_remove_port_from_hwgroup(hwif);
-
- device_unregister(hwif->portdev);
- device_unregister(&hwif->gendev);
- wait_for_completion(&hwif->gendev_rel_comp);
-
- /*
- * Remove us from the kernel's knowledge
- */
- blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
- kfree(hwif->sg_table);
- unregister_blkdev(hwif->major, hwif->name);
-
- ide_release_dma_engine(hwif);
-
- mutex_unlock(&ide_cfg_mtx);
-}
-
-void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
-{
- memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
- hwif->irq = hw->irq;
- hwif->chipset = hw->chipset;
- hwif->dev = hw->dev;
- hwif->gendev.parent = hw->parent ? hw->parent : hw->dev;
- hwif->ack_intr = hw->ack_intr;
- hwif->config_data = hw->config;
-}
-
/*
* Locks for IDE setting functionality
*/
static int set_pio_mode(ide_drive_t *drive, int arg)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
const struct ide_port_ops *port_ops = hwif->port_ops;
if (arg < 0 || arg > 255)
unsigned long flags;
/* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
port_ops->set_pio_mode(drive, arg);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
} else
port_ops->set_pio_mode(drive, arg);
} else {
static int generic_ide_probe(struct device *dev)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
return drv->probe ? drv->probe(drive) : -ENODEV;
}
static int generic_ide_remove(struct device *dev)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
if (drv->remove)
drv->remove(drive);
static void generic_ide_shutdown(struct device *dev)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
if (dev->driver && drv->shutdown)
drv->shutdown(drive);
void ide_port_apply_params(ide_hwif_t *hwif)
{
+ ide_drive_t *drive;
int i;
if (ide_ignore_cable & (1 << hwif->index)) {
hwif->cbl = ATA_CBL_PATA40_SHORT;
}
- for (i = 0; i < MAX_DRIVES; i++)
- ide_dev_apply_params(&hwif->drives[i], i);
+ ide_port_for_each_dev(i, drive, hwif)
+ ide_dev_apply_params(drive, i);
}
/*
--- /dev/null
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ * IT8172 IDE controller support
+ *
+ * Copyright (C) 2000 MontaVista Software Inc.
+ * Copyright (C) 2008 Shane McDonald
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+#define DRV_NAME "IT8172"
+
+static void it8172_set_pio_mode(ide_drive_t *drive, const u8 pio)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ u16 drive_enables;
+ u32 drive_timing;
+
+ /*
+ * The highest value of DIOR/DIOW pulse width and recovery time
+ * that can be set in the IT8172 is 8 PCI clock cycles. As a result,
+ * it cannot be configured for PIO mode 0. This table sets these
+ * parameters to the maximum supported by the IT8172.
+ */
+ static const u8 timings[] = { 0x3f, 0x3c, 0x1b, 0x12, 0x0a };
+
+ pci_read_config_word(dev, 0x40, &drive_enables);
+ pci_read_config_dword(dev, 0x44, &drive_timing);
+
+ /*
+ * Enable port 0x44. The IT8172 spec is confused; it calls
+ * this register the "Slave IDE Timing Register", but in fact,
+ * it controls timing for both master and slave drives.
+ */
+ drive_enables |= 0x4000;
+
+ drive_enables &= drive->dn ? 0xc006 : 0xc060;
+ if (drive->media == ide_disk)
+ /* enable prefetch */
+ drive_enables |= 0x0004 << (drive->dn * 4);
+ if (ata_id_has_iordy(drive->id))
+ /* enable IORDY sample-point */
+ drive_enables |= 0x0002 << (drive->dn * 4);
+
+ drive_timing &= drive->dn ? 0x00003f00 : 0x000fc000;
+ drive_timing |= timings[pio] << (drive->dn * 6 + 8);
+
+ pci_write_config_word(dev, 0x40, drive_enables);
+ pci_write_config_dword(dev, 0x44, drive_timing);
+}
+
+static void it8172_set_dma_mode(ide_drive_t *drive, const u8 speed)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ int a_speed = 3 << (drive->dn * 4);
+ int u_flag = 1 << drive->dn;
+ int u_speed = 0;
+ u8 reg48, reg4a;
+
+ pci_read_config_byte(dev, 0x48, ®48);
+ pci_read_config_byte(dev, 0x4a, ®4a);
+
+ if (speed >= XFER_UDMA_0) {
+ u8 udma = speed - XFER_UDMA_0;
+ u_speed = udma << (drive->dn * 4);
+
+ pci_write_config_byte(dev, 0x48, reg48 | u_flag);
+ reg4a &= ~a_speed;
+ pci_write_config_byte(dev, 0x4a, reg4a | u_speed);
+ } else {
+ const u8 mwdma_to_pio[] = { 0, 3, 4 };
+ u8 pio;
+
+ pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
+ pci_write_config_byte(dev, 0x4a, reg4a & ~a_speed);
+
+ pio = mwdma_to_pio[speed - XFER_MW_DMA_0];
+
+ it8172_set_pio_mode(drive, pio);
+ }
+}
+
+
+static const struct ide_port_ops it8172_port_ops = {
+ .set_pio_mode = it8172_set_pio_mode,
+ .set_dma_mode = it8172_set_dma_mode,
+};
+
+static const struct ide_port_info it8172_port_info __devinitdata = {
+ .name = DRV_NAME,
+ .port_ops = &it8172_port_ops,
+ .enablebits = { {0x41, 0x80, 0x80}, {0x00, 0x00, 0x00} },
+ .host_flags = IDE_HFLAG_SINGLE,
+ .pio_mask = ATA_PIO4 & ~ATA_PIO0,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA2,
+};
+
+static int __devinit it8172_init_one(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
+ return -ENODEV; /* IT8172 is more than an IDE controller */
+ return ide_pci_init_one(dev, &it8172_port_info, NULL);
+}
+
+static struct pci_device_id it8172_pci_tbl[] = {
+ { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8172), 0 },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, it8172_pci_tbl);
+
+static struct pci_driver it8172_pci_driver = {
+ .name = "IT8172_IDE",
+ .id_table = it8172_pci_tbl,
+ .probe = it8172_init_one,
+ .remove = ide_pci_remove,
+ .suspend = ide_pci_suspend,
+ .resume = ide_pci_resume,
+};
+
+static int __init it8172_ide_init(void)
+{
+ return ide_pci_register_driver(&it8172_pci_driver);
+}
+
+static void __exit it8172_ide_exit(void)
+{
+ pci_unregister_driver(&it8172_pci_driver);
+}
+
+module_init(it8172_ide_init);
+module_exit(it8172_ide_exit);
+
+MODULE_AUTHOR("Steve Longerbeam");
+MODULE_DESCRIPTION("PCI driver module for ITE 8172 IDE");
+MODULE_LICENSE("GPL");
static void it8213_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
int is_slave = drive->dn & 1;
int master_port = 0x40;
static void it8213_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 maslave = 0x40;
int a_speed = 3 << (drive->dn * 4);
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
- ide_drive_t *pair;
+ ide_drive_t *pair = ide_get_pair_dev(drive);
int clock, altclock, sel = 0;
u8 unit = drive->dn & 1, v;
- pair = &hwif->drives[1 - unit];
-
if(itdev->want[0][0] > itdev->want[1][0]) {
clock = itdev->want[0][1];
altclock = itdev->want[1][1];
{
ide_hwif_t *hwif = drive->hwif;
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
- ide_drive_t *pair;
+ ide_drive_t *pair = ide_get_pair_dev(drive);
u8 unit = drive->dn & 1, set_pio = pio;
/* Spec says 89 ref driver uses 88 */
static u16 pio_timings[]= { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 };
static u8 pio_want[] = { ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY };
- pair = &hwif->drives[1 - unit];
-
/*
* Compute the best PIO mode we can for a given device. We must
* pick a speed that does not cause problems with the other device
* the shared MWDMA/PIO timing register.
*/
-static void it821x_tune_mwdma (ide_drive_t *drive, byte mode_wanted)
+static void it821x_tune_mwdma(ide_drive_t *drive, u8 mode_wanted)
{
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
* controller when doing UDMA modes in pass through.
*/
-static void it821x_tune_udma (ide_drive_t *drive, byte mode_wanted)
+static void it821x_tune_udma(ide_drive_t *drive, u8 mode_wanted)
{
ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
.dma_test_irq = ide_dma_test_irq,
.dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
/**
return superio_ide_inb(hwif->io_ports.status_addr);
}
-static u8 superio_read_sff_dma_status(ide_hwif_t *hwif)
+static u8 superio_dma_sff_read_status(ide_hwif_t *hwif)
{
return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS);
}
.exec_command = ide_exec_command,
.read_status = superio_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = superio_read_sff_dma_status,
.set_irq = ide_set_irq,
tmp = superio_ide_inb(dma_stat);
outb(tmp | 0x66, dma_stat);
}
+#else
+#define superio_dma_sff_read_status ide_dma_sff_read_status
#endif
static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 };
/*
* This routine either enables/disables (according to IDE_DFLAG_PRESENT)
- * the IRQ associated with the port (HWIF(drive)),
+ * the IRQ associated with the port,
* and selects either PIO or DMA handshaking for the next I/O operation.
*/
static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
unsigned int bit, other, new, *old = (unsigned int *) hwif->select_data;
unsigned long flags;
static int ns87415_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u8 dma_stat = 0, dma_cmd = 0;
drive->waiting_for_dma = 0;
- dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
/* get DMA command mode */
dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
/* stop DMA */
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = superio_dma_sff_read_status,
};
static const struct ide_port_info ns87415_chipset __devinitdata = {
hwif->dma_base = hwif->io_ports.data_addr - IDE_PALM_ATA_PRI_REG_OFFSET;
- hwif->dma_ops = &sff_dma_ops;
-
return 0;
}
static struct ide_port_info __devinitdata palm_bk3710_port_info = {
.init_dma = palm_bk3710_init_dma,
.port_ops = &palm_bk3710_ports_ops,
+ .dma_ops = &sff_dma_ops,
.host_flags = IDE_HFLAG_MMIO,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
static void pdcnew_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 adj = (drive->dn & 1) ? 0x08 : 0x00;
* Deleted this because it is redundant from the caller.
*/
printk(KERN_WARNING "pdc202xx_new: %s channel reset.\n",
- HWIF(drive)->channel ? "Secondary" : "Primary");
+ drive->hwif->channel ? "Secondary" : "Primary");
}
/**
static void pdc202xx_set_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 drive_pci = 0x60 + (drive->dn << 2);
if (drive->current_speed > XFER_UDMA_2)
pdc_old_enable_66MHz_clock(drive->hwif);
if (drive->media != ide_disk || (drive->dev_flags & IDE_DFLAG_LBA48)) {
- struct request *rq = HWGROUP(drive)->rq;
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
+ struct request *rq = hwif->rq;
unsigned long high_16 = hwif->extra_base - 16;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u32 word_count = 0;
static int pdc202xx_dma_end(ide_drive_t *drive)
{
if (drive->media != ide_disk || (drive->dev_flags & IDE_DFLAG_LBA48)) {
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long high_16 = hwif->extra_base - 16;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u8 clock = 0;
static int pdc202xx_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long high_16 = hwif->extra_base - 16;
u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
u8 sc1d = inb(high_16 + 0x001d);
static void pdc202xx_reset (ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
ide_hwif_t *mate = hwif->mate;
pdc202xx_reset_host(hwif);
.dma_test_irq = pdc202xx_dma_test_irq,
.dma_lost_irq = pdc202xx_dma_lost_irq,
.dma_timeout = pdc202xx_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_dma_ops pdc2026x_dma_ops = {
.dma_test_irq = pdc202xx_dma_test_irq,
.dma_lost_irq = pdc202xx_dma_lost_irq,
.dma_timeout = pdc202xx_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
#define DECLARE_PDC2026X_DEV(udma, sectors) \
static void piix_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
int is_slave = drive->dn & 1;
int master_port = hwif->channel ? 0x42 : 0x40;
static void piix_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 maslave = hwif->channel ? 0x42 : 0x40;
int a_speed = 3 << (drive->dn * 4);
*/
static void ich_clear_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u8 dma_stat;
/*
{ 0x27DF, 0x103C, 0x30A1 }, /* ICH7 on HP Compaq nc2400 */
{ 0x27DF, 0x1071, 0xD221 }, /* ICH7 on Hercules EC-900 */
{ 0x24CA, 0x1025, 0x0061 }, /* ICH4 on Acer Aspire 2023WLMi */
+ { 0x24CA, 0x1025, 0x003d }, /* ICH4 on ACER TM290 */
+ { 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */
{ 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */
/* end marker */
{ 0, }
.exec_command = pmac_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = pmac_set_irq,
static int
pmac_ide_dma_setup(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4);
if (!pmac_ide_build_dmatable(drive, rq)) {
break;
if (++timeout > 100) {
printk(KERN_WARNING "ide%d, ide_dma_test_irq \
- timeout flushing channel\n", HWIF(drive)->index);
+ timeout flushing channel\n", hwif->index);
break;
}
}
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
recovery_time = drive->id[ATA_ID_EIDE_PIO] - 120;
}
- qd_set_timing(drive, qd6500_compute_timing(HWIF(drive), active_time, recovery_time));
+ qd_set_timing(drive, qd6500_compute_timing(drive->hwif,
+ active_time, recovery_time));
}
static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
printk(KERN_INFO "%s: PIO mode%d\n", drive->name,pio);
}
- if (!HWIF(drive)->channel && drive->media != ide_disk) {
+ if (!hwif->channel && drive->media != ide_disk) {
outb(0x5f, QD_CONTROL_PORT);
printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO "
"and post-write buffer on %s.\n",
- drive->name, HWIF(drive)->name);
+ drive->name, hwif->name);
}
qd_set_timing(drive, qd6580_compute_timing(active_time, recovery_time));
#define QD_CONFIG(hwif) ((hwif)->config_data & 0x00ff)
-#define QD_TIMING(drive) (byte)(((drive)->drive_data) & 0x00ff)
-#define QD_TIMREG(drive) (byte)((((drive)->drive_data) & 0xff00) >> 8)
+#define QD_TIMING(drive) (u8)(((drive)->drive_data) & 0x00ff)
+#define QD_TIMREG(drive) (u8)((((drive)->drive_data) & 0xff00) >> 8)
#define QD6500_DEF_DATA ((QD_TIM1_PORT<<8) | (QD_ID3 ? 0x0c : 0x08))
#define QD6580_DEF_DATA ((QD_TIM1_PORT<<8) | (QD_ID3 ? 0x0a : 0x00))
static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
unsigned int reg, timings;
unsigned short pci_clock;
*/
static int sc1200_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long dma_base = hwif->dma_base;
- byte dma_stat;
+ u8 dma_stat;
dma_stat = inb(dma_base+2); /* get DMA status */
static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
int mode = -1;
/*
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_port_info sc1200_chipset __devinitdata = {
return (u8)in_be32((void *)hwif->io_ports.ctl_addr);
}
-static u8 scc_read_sff_dma_status(ide_hwif_t *hwif)
+static u8 scc_dma_sff_read_status(ide_hwif_t *hwif)
{
return (u8)in_be32((void *)(hwif->dma_base + 4));
}
static void scc_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct scc_ports *ports = ide_get_hwifdata(hwif);
unsigned long ctl_base = ports->ctl;
unsigned long cckctrl_port = ctl_base + 0xff0;
static void scc_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct scc_ports *ports = ide_get_hwifdata(hwif);
unsigned long ctl_base = ports->ctl;
unsigned long cckctrl_port = ctl_base + 0xff0;
unsigned long scrcst_port = ctl_base + 0x014;
unsigned long udenvt_port = ctl_base + 0x018;
unsigned long tdvhsel_port = ctl_base + 0x020;
- int is_slave = (&hwif->drives[1] == drive);
+ int is_slave = drive->dn & 1;
int offset, idx;
unsigned long reg;
unsigned long jcactsel;
{
ide_hwif_t *hwif = drive->hwif;
u8 unit = drive->dn & 1;
- u8 dma_stat = scc_ide_inb(hwif->dma_base + 4);
+ u8 dma_stat = scc_dma_sff_read_status(hwif);
if (on)
dma_stat |= (1 << (5 + unit));
static int scc_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
unsigned int reading;
u8 dma_stat;
out_be32((void __iomem *)hwif->dma_base, reading);
/* read DMA status for INTR & ERROR flags */
- dma_stat = in_be32((void __iomem *)(hwif->dma_base + 4));
+ dma_stat = scc_dma_sff_read_status(hwif);
/* clear INTR & ERROR flags */
out_be32((void __iomem *)(hwif->dma_base + 4), dma_stat | 6);
/* stop DMA */
scc_ide_outb(dma_cmd & ~1, hwif->dma_base);
/* get DMA status */
- dma_stat = scc_ide_inb(hwif->dma_base + 4);
+ dma_stat = scc_dma_sff_read_status(hwif);
/* clear the INTR & ERROR bits */
scc_ide_outb(dma_stat | 6, hwif->dma_base + 4);
/* purge DMA mappings */
static int scc_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
void __iomem *dma_base = (void __iomem *)hwif->dma_base;
unsigned long intsts_port = hwif->dma_base + 0x014;
u32 reg;
drive->name);
data_loss = 1;
if (retry++) {
- struct request *rq = HWGROUP(drive)->rq;
- int unit;
+ struct request *rq = hwif->rq;
+ ide_drive_t *drive;
+ int i;
+
/* ERROR_RESET and drive->crc_count are needed
* to reduce DMA transfer mode in retry process.
*/
if (rq)
rq->errors |= ERROR_RESET;
- for (unit = 0; unit < MAX_DRIVES; unit++) {
- ide_drive_t *drive = &hwif->drives[unit];
+
+ ide_port_for_each_dev(i, drive, hwif)
drive->crc_count++;
- }
}
}
}
/* returns 1 if dma irq issued, 0 otherwise */
static int scc_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u32 int_stat = in_be32((void __iomem *)hwif->dma_base + 0x014);
/* SCC errata A252,A308 workaround: Step4 */
.exec_command = scc_exec_command,
.read_status = scc_read_status,
.read_altstatus = scc_read_altstatus,
- .read_sff_dma_status = scc_read_sff_dma_status,
.set_irq = scc_set_irq,
.dma_test_irq = scc_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = scc_dma_sff_read_status,
};
#define DECLARE_SCC_DEV(name_str) \
static const u8 dma_modes[] = { 0x77, 0x21, 0x20 };
static const u8 drive_pci2[] = { 0x45, 0x44, 0x47, 0x46 };
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 unit = drive->dn & 1;
* we tune the drive then try to grab DMA ownership if we want to be
* the DMA end. This has to be become dynamic to handle hot-plug.
*/
- dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) {
printk(KERN_INFO "%s %s: simplex device: DMA disabled\n",
d->name, pci_name(dev));
hwif->dma_base = base;
+ if (hwif->dma_ops == NULL)
+ hwif->dma_ops = &sff_dma_ops;
+
if (ide_pci_check_simplex(hwif, d) < 0)
return -1;
if (ide_allocate_dma_engine(hwif))
return -1;
-
- hwif->dma_ops = &sff_dma_ops;
}
return 0;
*/
for (port = 0; port < channels; ++port) {
- const ide_pci_enablebit_t *e = &(d->enablebits[port]);
+ const struct ide_pci_enablebit *e = &d->enablebits[port];
if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) ||
(tmp & e->mask) != e->val)) {
if (ret < 0)
goto out;
- /* Is it an "IDE storage" device in non-PCI mode? */
- if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) {
+ if (ide_pci_is_in_compatibility_mode(dev)) {
if (noisy)
printk(KERN_INFO "%s %s: not 100%% native mode: will "
"probe irqs later\n", d->name, pci_name(dev));
sgiioc4_clearirq(ide_drive_t * drive)
{
u32 intr_reg;
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
unsigned long other_ir = io_ports->irq_addr + (IOC4_INTR_REG << 2);
static void sgiioc4_dma_start(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long ioc4_dma_addr = hwif->dma_base + IOC4_DMA_CTRL * 4;
unsigned int reg = readl((void __iomem *)ioc4_dma_addr);
unsigned int temp_reg = reg | IOC4_S_DMA_START;
static int sgiioc4_dma_end(ide_drive_t *drive)
{
u32 ioc4_dma, bc_dev, bc_mem, num, valid = 0, cnt = 0;
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long dma_base = hwif->dma_base;
int dma_stat = 0;
unsigned long *ending_dma = ide_get_hwifdata(hwif);
/* returns 1 if dma irq issued, 0 otherwise */
static int sgiioc4_dma_test_irq(ide_drive_t *drive)
{
- return sgiioc4_checkirq(HWIF(drive));
+ return sgiioc4_checkirq(drive->hwif);
}
static void sgiioc4_dma_host_set(ide_drive_t *drive, int on)
sgiioc4_configure_for_dma(int dma_direction, ide_drive_t * drive)
{
u32 ioc4_dma;
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long dma_base = hwif->dma_base;
unsigned long ioc4_dma_addr = dma_base + IOC4_DMA_CTRL * 4;
u32 dma_addr, ending_dma_addr;
static unsigned int
sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned int *table = hwif->dmatable_cpu;
unsigned int count = 0, i = 1;
struct scatterlist *sg;
static int sgiioc4_dma_setup(ide_drive_t *drive)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
unsigned int count = 0;
int ddir;
.exec_command = ide_exec_command,
.read_status = sgiioc4_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long base = (unsigned long)hwif->hwif_data;
u8 unit = drive->dn & 1;
static const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 };
static const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
ide_drive_t *pair = ide_get_pair_dev(drive);
u32 speedt = 0;
static const u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
static const u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
unsigned long base = (unsigned long)hwif->hwif_data;
u16 ultra = 0, multi = 0;
/* returns 1 if dma irq issued, 0 otherwise */
static int siimage_io_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 dma_altstat = 0;
unsigned long addr = siimage_selreg(hwif, 1);
static int siimage_mmio_dma_test_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long addr = siimage_selreg(hwif, 0x1);
void __iomem *sata_error_addr
= (void __iomem *)hwif->sata_scr[SATA_ERROR_OFFSET];
.dma_test_irq = siimage_dma_test_irq,
.dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
#define DECLARE_SII_DEV(p_ops) \
static void config_drive_art_rwp(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 reg4bh = 0;
u8 rw_prefetch = 0;
*/
static void sl82c105_dma_lost_irq(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u32 val, mask = hwif->channel ? CTRL_IDE_IRQB : CTRL_IDE_IRQA;
u8 dma_cmd;
*/
static void sl82c105_dma_start(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
int reg = 0x44 + drive->dn * 4;
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = sl82c105_dma_lost_irq,
.dma_timeout = sl82c105_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_port_info sl82c105_chipset __devinitdata = {
static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
int is_slave = drive->dn & 1;
int master_port = hwif->channel ? 0x42 : 0x40;
static void slc90e66_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 maslave = hwif->channel ? 0x42 : 0x40;
int sitre = 0, a_speed = 7 << (drive->dn * 4);
static void tc86c001_set_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long scr_port = hwif->config_data + (drive->dn ? 0x02 : 0x00);
u16 mode, scr = inw(scr_port);
*/
static int tc86c001_timer_expiry(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
ide_expiry_t *expiry = ide_get_hwifdata(hwif);
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);
/* Restore a higher level driver's expiry handler first. */
- hwgroup->expiry = expiry;
+ hwif->expiry = expiry;
if ((dma_stat & 5) == 1) { /* DMA active and no interrupt */
unsigned long sc_base = hwif->config_data;
static void tc86c001_dma_start(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
+ ide_hwif_t *hwif = drive->hwif;
unsigned long sc_base = hwif->config_data;
unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04);
- unsigned long nsectors = hwgroup->rq->nr_sectors;
+ unsigned long nsectors = hwif->rq->nr_sectors;
/*
* We have to manually load the sector count and size into
outw(SECTOR_SIZE / 2, twcr_port); /* Transfer Word Count 1/2 */
/* Install our timeout expiry hook, saving the current handler... */
- ide_set_hwifdata(hwif, hwgroup->expiry);
- hwgroup->expiry = &tc86c001_timer_expiry;
+ ide_set_hwifdata(hwif, hwif->expiry);
+ hwif->expiry = &tc86c001_timer_expiry;
ide_dma_start(drive);
}
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = ide_dma_sff_read_status,
};
static const struct ide_port_info tc86c001_chipset __devinitdata = {
static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = to_pci_dev(hwif->dev);
u32 triflex_timings = 0;
u16 timing = 0;
static void trm290_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
u16 reg = 0;
unsigned long flags;
static int trm290_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
unsigned int count, rw;
if (rq_data_dir(rq)) {
drive->waiting_for_dma = 0;
/* purge DMA mappings */
ide_destroy_dmatable(drive);
- status = inw(HWIF(drive)->dma_base + 2);
+ status = inw(drive->hwif->dma_base + 2);
+
return status != 0x00ff;
}
static int trm290_dma_test_irq(ide_drive_t *drive)
{
- u16 status;
+ u16 status = inw(drive->hwif->dma_base + 2);
- status = inw(HWIF(drive)->dma_base + 2);
return status == 0x00ff;
}
{
ide_hwif_t *hwif = drive->hwif;
void __iomem *base = TX4939IDE_BASE(hwif);
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
u8 reading;
int nent;
return found;
}
+#ifdef __BIG_ENDIAN
+static u8 tx4939ide_dma_sff_read_status(ide_hwif_t *hwif)
+{
+ void __iomem *base = TX4939IDE_BASE(hwif);
+
+ return tx4939ide_readb(base, TX4939IDE_DMA_Stat);
+}
+#else
+#define tx4939ide_dma_sff_read_status ide_dma_sff_read_status
+#endif
+
static void tx4939ide_init_hwif(ide_hwif_t *hwif)
{
void __iomem *base = TX4939IDE_BASE(hwif);
#ifdef __BIG_ENDIAN
-static u8 tx4939ide_read_sff_dma_status(ide_hwif_t *hwif)
-{
- void __iomem *base = TX4939IDE_BASE(hwif);
-
- return tx4939ide_readb(base, TX4939IDE_DMA_Stat);
-}
-
/* custom iops (independent from SWAP_IO_SPACE) */
static u8 tx4939ide_inb(unsigned long port)
{
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = tx4939ide_read_sff_dma_status,
.set_irq = ide_set_irq,
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
- .read_sff_dma_status = ide_read_sff_dma_status,
.set_irq = ide_set_irq,
.dma_test_irq = tx4939ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
+ .dma_sff_read_status = tx4939ide_dma_sff_read_status,
};
static const struct ide_port_info tx4939ide_port_info __initdata = {
static void umc_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *mate_hwgroup = hwif->mate ? hwif->mate->hwgroup : NULL;
+ ide_hwif_t *hwif = drive->hwif, *mate = hwif->mate;
unsigned long uninitialized_var(flags);
printk("%s: setting umc8672 to PIO mode%d (speed %d)\n",
drive->name, pio, pio_to_umc[pio]);
- if (mate_hwgroup)
- spin_lock_irqsave(&mate_hwgroup->lock, flags);
- if (mate_hwgroup && mate_hwgroup->handler) {
+ if (mate)
+ spin_lock_irqsave(&mate->lock, flags);
+ if (mate && mate->handler) {
printk(KERN_ERR "umc8672: other interface is busy: exiting tune_umc()\n");
} else {
current_speeds[drive->name[2] - 'a'] = pio_to_umc[pio];
umc_set_speeds(current_speeds);
}
- if (mate_hwgroup)
- spin_unlock_irqrestore(&mate_hwgroup->lock, flags);
+ if (mate)
+ spin_unlock_irqrestore(&mate->lock, flags);
}
static const struct ide_port_ops umc8672_port_ops = {
ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
}
- via_set_speed(HWIF(drive), drive->dn, &t);
+ via_set_speed(hwif, drive->dn, &t);
}
/**
# define SUPPORT_VLB_SYNC 1
#endif
-typedef unsigned char byte; /* used everywhere */
-
/*
* Probably not wise to fiddle with these
*/
+#define IDE_DEFAULT_MAX_FAILURES 1
#define ERROR_MAX 8 /* Max read/write errors per sector */
#define ERROR_RESET 3 /* Reset controller every 4th retry */
#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
-#define HWIF(drive) ((ide_hwif_t *)((drive)->hwif))
-#define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup))
-
/*
* Definitions for accessing IDE controller registers
*/
unsigned long config;
} hw_regs_t;
-void ide_init_port_data(struct hwif_s *, unsigned int);
-void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
-
static inline void ide_std_init_ports(hw_regs_t *hw,
unsigned long io_addr,
unsigned long ctl_addr)
struct idetape_bh *bh;
char *b_data;
- /* idescsi only for now */
struct scatterlist *sg;
unsigned int sg_cnt;
- struct scsi_cmnd *scsi_cmd;
- void (*done) (struct scsi_cmnd *);
-
unsigned long timeout;
};
struct ide_devset;
-struct ide_driver_s;
+struct ide_driver;
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_drive_link;
struct request_queue *queue; /* request queue */
struct request *rq; /* current request */
- struct ide_drive_s *next; /* circular list of hwgroup drives */
void *driver_data; /* extra driver data */
u16 *id; /* identification info */
#ifdef CONFIG_IDE_PROC_FS
int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *,
unsigned int, int);
+ ide_startstop_t (*irq_handler)(struct ide_drive_s *);
+
unsigned long atapi_flags;
struct ide_atapi_pc request_sense_pc;
void (*exec_command)(struct hwif_s *, u8);
u8 (*read_status)(struct hwif_s *);
u8 (*read_altstatus)(struct hwif_s *);
- u8 (*read_sff_dma_status)(struct hwif_s *);
void (*set_irq)(struct hwif_s *, int);
int (*dma_test_irq)(struct ide_drive_s *);
void (*dma_lost_irq)(struct ide_drive_s *);
void (*dma_timeout)(struct ide_drive_s *);
+ /*
+ * The following method is optional and only required to be
+ * implemented for the SFF-8038i compatible controllers.
+ */
+ u8 (*dma_sff_read_status)(struct hwif_s *);
};
struct ide_host;
typedef struct hwif_s {
- struct hwif_s *next; /* for linked-list in ide_hwgroup_t */
struct hwif_s *mate; /* other hwif from same PCI chip */
- struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */
struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
struct ide_host *host;
unsigned long sata_scr[SATA_NR_PORTS];
- ide_drive_t drives[MAX_DRIVES]; /* drive info */
+ ide_drive_t *devices[MAX_DRIVES + 1];
u8 major; /* our major number */
u8 index; /* 0 for ide0; 1 for ide1; ... */
unsigned extra_ports; /* number of extra dma ports */
unsigned present : 1; /* this interface exists */
- unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */
+ unsigned busy : 1; /* serializes devices on a port */
struct device gendev;
struct device *portdev;
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_hwif_link *acpidata;
#endif
+
+ /* IRQ handler, if active */
+ ide_startstop_t (*handler)(ide_drive_t *);
+
+ /* BOOL: polling active & poll_timeout field valid */
+ unsigned int polling : 1;
+
+ /* current drive */
+ ide_drive_t *cur_dev;
+
+ /* current request */
+ struct request *rq;
+
+ /* failsafe timer */
+ struct timer_list timer;
+ /* timeout value during long polls */
+ unsigned long poll_timeout;
+ /* queried upon timeouts */
+ int (*expiry)(ide_drive_t *);
+
+ int req_gen;
+ int req_gen_timer;
+
+ spinlock_t lock;
} ____cacheline_internodealigned_in_smp ide_hwif_t;
#define MAX_HOST_PORTS 4
struct ide_host {
- ide_hwif_t *ports[MAX_HOST_PORTS];
+ ide_hwif_t *ports[MAX_HOST_PORTS + 1];
unsigned int n_ports;
struct device *dev[2];
unsigned int (*init_chipset)(struct pci_dev *);
unsigned long host_flags;
void *host_priv;
+ ide_hwif_t *cur_port; /* for hosts requiring serialization */
+
+ /* used for hosts requiring serialization */
+ volatile long host_busy;
};
+#define IDE_HOST_BUSY 0
+
/*
* internal ide interrupt handler type
*/
/* used by ide-cd, ide-floppy, etc. */
typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned);
-typedef struct hwgroup_s {
- /* irq handler, if active */
- ide_startstop_t (*handler)(ide_drive_t *);
-
- /* BOOL: protects all fields below */
- volatile int busy;
- /* BOOL: polling active & poll_timeout field valid */
- unsigned int polling : 1;
-
- /* current drive */
- ide_drive_t *drive;
- /* ptr to current hwif in linked-list */
- ide_hwif_t *hwif;
-
- /* current request */
- struct request *rq;
-
- /* failsafe timer */
- struct timer_list timer;
- /* timeout value during long polls */
- unsigned long poll_timeout;
- /* queried upon timeouts */
- int (*expiry)(ide_drive_t *);
-
- int req_gen;
- int req_gen_timer;
-
- spinlock_t lock;
-} ide_hwgroup_t;
-
-typedef struct ide_driver_s ide_driver_t;
-
extern struct mutex ide_setting_mtx;
/*
void ide_proc_port_register_devices(ide_hwif_t *);
void ide_proc_unregister_device(ide_drive_t *);
void ide_proc_unregister_port(ide_hwif_t *);
-void ide_proc_register_driver(ide_drive_t *, ide_driver_t *);
-void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *);
+void ide_proc_register_driver(ide_drive_t *, struct ide_driver *);
+void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *);
read_proc_t proc_ide_read_capacity;
read_proc_t proc_ide_read_geometry;
static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
-static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
-static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
+static inline void ide_proc_register_driver(ide_drive_t *drive,
+ struct ide_driver *driver) { ; }
+static inline void ide_proc_unregister_driver(ide_drive_t *drive,
+ struct ide_driver *driver) { ; }
#define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0;
#endif
* The gendriver.owner field should be set to the module owner of this driver.
* The gendriver.name field should be set to the name of this driver
*/
-struct ide_driver_s {
+struct ide_driver {
const char *version;
ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
int (*end_request)(ide_drive_t *, int, int);
- ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8);
struct device_driver gen_driver;
int (*probe)(ide_drive_t *);
void (*remove)(ide_drive_t *);
#endif
};
-#define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver)
+#define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver)
int ide_device_get(ide_drive_t *);
void ide_device_put(ide_drive_t *);
void ide_pad_transfer(ide_drive_t *, int, int);
-ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
-
-ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
+ide_startstop_t ide_error(ide_drive_t *, const char *, u8);
void ide_fix_driveid(u16 *);
void ide_exec_command(ide_hwif_t *, u8);
u8 ide_read_status(ide_hwif_t *);
u8 ide_read_altstatus(ide_hwif_t *);
-u8 ide_read_sff_dma_status(ide_hwif_t *);
void ide_set_irq(ide_hwif_t *, int);
extern void ide_timer_expiry(unsigned long);
extern irqreturn_t ide_intr(int irq, void *dev_id);
-
-static inline int ide_lock_hwgroup(ide_hwgroup_t *hwgroup)
-{
- if (hwgroup->busy)
- return 1;
-
- hwgroup->busy = 1;
- /* for atari only */
- ide_get_lock(ide_intr, hwgroup);
-
- return 0;
-}
-
-static inline void ide_unlock_hwgroup(ide_hwgroup_t *hwgroup)
-{
- /* for atari only */
- ide_release_lock();
- hwgroup->busy = 0;
-}
-
extern void do_ide_request(struct request_queue *);
void ide_init_disk(struct gendisk *, ide_drive_t *);
}
#endif
-typedef struct ide_pci_enablebit_s {
+struct ide_pci_enablebit {
u8 reg; /* byte pci reg holding the enable-bit */
u8 mask; /* mask to isolate the enable-bit */
u8 val; /* value of masked reg when "enabled" */
-} ide_pci_enablebit_t;
+};
enum {
/* Uses ISA control ports not PCI ones. */
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;
- ide_pci_enablebit_t enablebits[2];
+ struct ide_pci_enablebit enablebits[2];
+
hwif_chipset_t chipset;
u16 max_sectors; /* if < than the default one */
extern void ide_dma_start(ide_drive_t *);
int ide_dma_end(ide_drive_t *);
int ide_dma_test_irq(ide_drive_t *);
+u8 ide_dma_sff_read_status(ide_hwif_t *);
extern const struct ide_dma_ops sff_dma_ops;
#else
static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
#endif
-void ide_remove_port_from_hwgroup(ide_hwif_t *);
-void ide_unregister(ide_hwif_t *);
-
void ide_register_region(struct gendisk *);
void ide_unregister_region(struct gendisk *);
ide_set_pio(drive, 255);
}
-extern spinlock_t ide_lock;
-extern struct mutex ide_cfg_mtx;
-/*
- * Structure locking:
- *
- * ide_cfg_mtx and hwgroup->lock together protect changes to
- * ide_hwif_t->next
- * ide_drive_t->next
- *
- * ide_hwgroup_t->busy: hwgroup->lock
- * ide_hwgroup_t->hwif: hwgroup->lock
- * ide_hwif_t->{hwgroup,mate}: constant, no locking
- * ide_drive_t->hwif: constant, no locking
- */
-
-#define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0)
-
char *ide_media_string(ide_drive_t *);
extern struct device_attribute ide_dev_attrs[];
static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
{
- ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1];
+ ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1];
return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
}
+
+#define ide_port_for_each_dev(i, dev, port) \
+ for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
+
+#define ide_host_for_each_port(i, port, host) \
+ for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
+
#endif /* _IDE_H */
#define PCI_VENDOR_ID_ROCKWELL 0x127A
#define PCI_VENDOR_ID_ITE 0x1283
+#define PCI_DEVICE_ID_ITE_8172 0x8172
#define PCI_DEVICE_ID_ITE_8211 0x8211
#define PCI_DEVICE_ID_ITE_8212 0x8212
#define PCI_DEVICE_ID_ITE_8213 0x8213
projects / linux-2.6-omap-h63xx.git / commitdiff