#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
+#include <linux/reboot.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "hda_codec.h"
#define RIRB_INT_OVERRUN 0x04
#define RIRB_INT_MASK 0x05
-/* STATESTS int mask: SD2,SD1,SD0 */
-#define AZX_MAX_CODECS 3
-#define STATESTS_INT_MASK 0x07
+/* STATESTS int mask: S3,SD2,SD1,SD0 */
+#define AZX_MAX_CODECS 4
+#define STATESTS_INT_MASK 0x0f
/* SD_CTL bits */
#define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
#define INTEL_SCH_HDA_DEVC 0x78
#define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
+/* Define IN stream 0 FIFO size offset in VIA controller */
+#define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
+/* Define VIA HD Audio Device ID*/
+#define VIA_HDAC_DEVICE_ID 0x3288
+
/*
*/
unsigned int running :1;
unsigned int irq_pending :1;
unsigned int irq_ignore :1;
+ /*
+ * For VIA:
+ * A flag to ensure DMA position is 0
+ * when link position is not greater than FIFO size
+ */
+ unsigned int insufficient :1;
};
/* CORB/RIRB */
unsigned int polling_mode :1;
unsigned int msi :1;
unsigned int irq_pending_warned :1;
+ unsigned int via_dmapos_patch :1; /* enable DMA-position fix for VIA */
/* for debugging */
unsigned int last_cmd; /* last issued command (to sync) */
/* for pending irqs */
struct work_struct irq_pending_work;
+
+ /* reboot notifier (for mysterious hangup problem at power-down) */
+ struct notifier_block reboot_notifier;
};
/* driver types */
AZX_DRIVER_ULI,
AZX_DRIVER_NVIDIA,
AZX_DRIVER_TERA,
+ AZX_NUM_DRIVERS, /* keep this as last entry */
};
static char *driver_short_names[] __devinitdata = {
/* start a stream */
static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
{
+ /*
+ * Before stream start, initialize parameter
+ */
+ azx_dev->insufficient = 1;
+
/* enable SIE */
azx_writeb(chip, INTCTL,
azx_readb(chip, INTCTL) | (1 << azx_dev->index));
struct azx_dev *azx_dev, u32 **bdlp,
int ofs, int size, int with_ioc)
{
- struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
u32 *bdl = *bdlp;
while (size > 0) {
if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
return -EINVAL;
- addr = snd_pcm_sgbuf_get_addr(sgbuf, ofs);
+ addr = snd_pcm_sgbuf_get_addr(substream, ofs);
/* program the address field of the BDL entry */
bdl[0] = cpu_to_le32((u32)addr);
bdl[1] = cpu_to_le32(upper_32_bits(addr));
/* program the size field of the BDL entry */
- chunk = PAGE_SIZE - (ofs % PAGE_SIZE);
- if (size < chunk)
- chunk = size;
+ chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
bdl[2] = cpu_to_le32(chunk);
/* program the IOC to enable interrupt
* only when the whole fragment is processed
/* enable the position buffer */
if (chip->position_fix == POS_FIX_POSBUF ||
- chip->position_fix == POS_FIX_AUTO) {
+ chip->position_fix == POS_FIX_AUTO ||
+ chip->via_dmapos_patch) {
if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
azx_writel(chip, DPLBASE,
(u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
* Codec initialization
*/
-static unsigned int azx_max_codecs[] __devinitdata = {
- [AZX_DRIVER_ICH] = 4, /* Some ICH9 boards use SD3 */
- [AZX_DRIVER_SCH] = 3,
- [AZX_DRIVER_ATI] = 4,
- [AZX_DRIVER_ATIHDMI] = 4,
- [AZX_DRIVER_VIA] = 3, /* FIXME: correct? */
- [AZX_DRIVER_SIS] = 3, /* FIXME: correct? */
- [AZX_DRIVER_ULI] = 3, /* FIXME: correct? */
- [AZX_DRIVER_NVIDIA] = 3, /* FIXME: correct? */
+/* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
+static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = {
[AZX_DRIVER_TERA] = 1,
};
+/* number of slots to probe as default
+ * this can be different from azx_max_codecs[] -- e.g. some boards
+ * report wrongly the non-existing 4th slot availability
+ */
+static unsigned int azx_default_codecs[AZX_NUM_DRIVERS] __devinitdata = {
+ [AZX_DRIVER_ICH] = 3,
+ [AZX_DRIVER_ATI] = 3,
+};
+
static int __devinit azx_codec_create(struct azx *chip, const char *model,
unsigned int codec_probe_mask)
{
struct hda_bus_template bus_temp;
int c, codecs, audio_codecs, err;
+ int def_slots, max_slots;
memset(&bus_temp, 0, sizeof(bus_temp));
bus_temp.private_data = chip;
if (err < 0)
return err;
+ if (chip->driver_type == AZX_DRIVER_NVIDIA)
+ chip->bus->needs_damn_long_delay = 1;
+
codecs = audio_codecs = 0;
- for (c = 0; c < AZX_MAX_CODECS; c++) {
+ max_slots = azx_max_codecs[chip->driver_type];
+ if (!max_slots)
+ max_slots = AZX_MAX_CODECS;
+ def_slots = azx_default_codecs[chip->driver_type];
+ if (!def_slots)
+ def_slots = max_slots;
+ for (c = 0; c < def_slots; c++) {
if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
struct hda_codec *codec;
err = snd_hda_codec_new(chip->bus, c, &codec);
}
if (!audio_codecs) {
/* probe additional slots if no codec is found */
- for (; c < azx_max_codecs[chip->driver_type]; c++) {
+ for (; c < max_slots; c++) {
if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
err = snd_hda_codec_new(chip->bus, c, NULL);
if (err < 0)
return 0;
}
+/* get the current DMA position with correction on VIA chips */
+static unsigned int azx_via_get_position(struct azx *chip,
+ struct azx_dev *azx_dev)
+{
+ unsigned int link_pos, mini_pos, bound_pos;
+ unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
+ unsigned int fifo_size;
+
+ link_pos = azx_sd_readl(azx_dev, SD_LPIB);
+ if (azx_dev->index >= 4) {
+ /* Playback, no problem using link position */
+ return link_pos;
+ }
+
+ /* Capture */
+ /* For new chipset,
+ * use mod to get the DMA position just like old chipset
+ */
+ mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
+ mod_dma_pos %= azx_dev->period_bytes;
+
+ /* azx_dev->fifo_size can't get FIFO size of in stream.
+ * Get from base address + offset.
+ */
+ fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
+
+ if (azx_dev->insufficient) {
+ /* Link position never gather than FIFO size */
+ if (link_pos <= fifo_size)
+ return 0;
+
+ azx_dev->insufficient = 0;
+ }
+
+ if (link_pos <= fifo_size)
+ mini_pos = azx_dev->bufsize + link_pos - fifo_size;
+ else
+ mini_pos = link_pos - fifo_size;
+
+ /* Find nearest previous boudary */
+ mod_mini_pos = mini_pos % azx_dev->period_bytes;
+ mod_link_pos = link_pos % azx_dev->period_bytes;
+ if (mod_link_pos >= fifo_size)
+ bound_pos = link_pos - mod_link_pos;
+ else if (mod_dma_pos >= mod_mini_pos)
+ bound_pos = mini_pos - mod_mini_pos;
+ else {
+ bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
+ if (bound_pos >= azx_dev->bufsize)
+ bound_pos = 0;
+ }
+
+ /* Calculate real DMA position we want */
+ return bound_pos + mod_dma_pos;
+}
+
static unsigned int azx_get_position(struct azx *chip,
struct azx_dev *azx_dev)
{
unsigned int pos;
- if (chip->position_fix == POS_FIX_POSBUF ||
- chip->position_fix == POS_FIX_AUTO) {
+ if (chip->via_dmapos_patch)
+ pos = azx_via_get_position(chip, azx_dev);
+ else if (chip->position_fix == POS_FIX_POSBUF ||
+ chip->position_fix == POS_FIX_AUTO) {
/* use the position buffer */
pos = le32_to_cpu(*azx_dev->posbuf);
} else {
chip->position_fix = POS_FIX_POSBUF;
}
+ if (!bdl_pos_adj[chip->dev_index])
+ return 1; /* no delayed ack */
if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
return 0; /* NG - it's below the period boundary */
return 1; /* OK, it's fine */
if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
return 0;
- snd_assert(cpcm->name, return -EINVAL);
+ if (snd_BUG_ON(!cpcm->name))
+ return -EINVAL;
err = snd_pcm_new(chip->card, cpcm->name, cpcm->device,
cpcm->stream[0].substreams,
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci),
- 1024 * 64, 1024 * 1024);
+ 1024 * 64, 32 * 1024 * 1024);
chip->pcm[cpcm->device] = pcm;
return 0;
}
#endif /* CONFIG_PM */
+/*
+ * reboot notifier for hang-up problem at power-down
+ */
+static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
+{
+ struct azx *chip = container_of(nb, struct azx, reboot_notifier);
+ azx_stop_chip(chip);
+ return NOTIFY_OK;
+}
+
+static void azx_notifier_register(struct azx *chip)
+{
+ chip->reboot_notifier.notifier_call = azx_halt;
+ register_reboot_notifier(&chip->reboot_notifier);
+}
+
+static void azx_notifier_unregister(struct azx *chip)
+{
+ if (chip->reboot_notifier.notifier_call)
+ unregister_reboot_notifier(&chip->reboot_notifier);
+}
+
/*
* destructor
*/
{
int i;
+ azx_notifier_unregister(chip);
+
if (chip->initialized) {
azx_clear_irq_pending(chip);
for (i = 0; i < chip->num_streams; i++)
{
const struct snd_pci_quirk *q;
+ /* Check VIA HD Audio Controller exist */
+ if (chip->pci->vendor == PCI_VENDOR_ID_VIA &&
+ chip->pci->device == VIA_HDAC_DEVICE_ID) {
+ chip->via_dmapos_patch = 1;
+ /* Use link position directly, avoid any transfer problem. */
+ return POS_FIX_LPIB;
+ }
+ chip->via_dmapos_patch = 0;
+
if (fix == POS_FIX_AUTO) {
q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
if (q) {
}
chip->addr = pci_resource_start(pci, 0);
- chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
+ chip->remap_addr = pci_ioremap_bar(pci, 0);
if (chip->remap_addr == NULL) {
snd_printk(KERN_ERR SFX "ioremap error\n");
err = -ENXIO;
pci_set_drvdata(pci, card);
chip->running = 1;
power_down_all_codecs(chip);
+ azx_notifier_register(chip);
dev++;
return err;
projects / linux-2.6-omap-h63xx.git / blobdiff