static struct e100_serial rs_table[] = {
{ .baud = DEF_BAUD,
- .port = (unsigned char *)R_SERIAL0_CTRL,
+ .ioport = (unsigned char *)R_SERIAL0_CTRL,
.irq = 1U << 12, /* uses DMA 6 and 7 */
.oclrintradr = R_DMA_CH6_CLR_INTR,
.ofirstadr = R_DMA_CH6_FIRST,
}, /* ttyS0 */
#ifndef CONFIG_SVINTO_SIM
{ .baud = DEF_BAUD,
- .port = (unsigned char *)R_SERIAL1_CTRL,
+ .ioport = (unsigned char *)R_SERIAL1_CTRL,
.irq = 1U << 16, /* uses DMA 8 and 9 */
.oclrintradr = R_DMA_CH8_CLR_INTR,
.ofirstadr = R_DMA_CH8_FIRST,
}, /* ttyS1 */
{ .baud = DEF_BAUD,
- .port = (unsigned char *)R_SERIAL2_CTRL,
+ .ioport = (unsigned char *)R_SERIAL2_CTRL,
.irq = 1U << 4, /* uses DMA 2 and 3 */
.oclrintradr = R_DMA_CH2_CLR_INTR,
.ofirstadr = R_DMA_CH2_FIRST,
}, /* ttyS2 */
{ .baud = DEF_BAUD,
- .port = (unsigned char *)R_SERIAL3_CTRL,
+ .ioport = (unsigned char *)R_SERIAL3_CTRL,
.irq = 1U << 8, /* uses DMA 4 and 5 */
.oclrintradr = R_DMA_CH4_CLR_INTR,
.ofirstadr = R_DMA_CH4_FIRST,
/* Output */
#define E100_RTS_GET(info) ((info)->rx_ctrl & E100_RTS_MASK)
/* Input */
-#define E100_CTS_GET(info) ((info)->port[REG_STATUS] & E100_CTS_MASK)
+#define E100_CTS_GET(info) ((info)->ioport[REG_STATUS] & E100_CTS_MASK)
/* These are typically PA or PB and 0 means 0V, 1 means 3.3V */
/* Is an output */
/* Calculate the chartime depending on baudrate, numbor of bits etc. */
static void update_char_time(struct e100_serial * info)
{
- tcflag_t cflags = info->tty->termios->c_cflag;
+ tcflag_t cflags = info->port.tty->termios->c_cflag;
int bits;
/* calc. number of bits / data byte */
local_irq_save(flags);
info->rx_ctrl &= ~E100_RTS_MASK;
info->rx_ctrl |= (set ? 0 : E100_RTS_MASK); /* RTS is active low */
- info->port[REG_REC_CTRL] = info->rx_ctrl;
+ info->ioport[REG_REC_CTRL] = info->rx_ctrl;
local_irq_restore(flags);
#ifdef SERIAL_DEBUG_IO
printk("ser%i rts %i\n", info->line, set);
{
#ifndef CONFIG_SVINTO_SIM
/* disable the receiver */
- info->port[REG_REC_CTRL] =
+ info->ioport[REG_REC_CTRL] =
(info->rx_ctrl &= ~IO_MASK(R_SERIAL0_REC_CTRL, rec_enable));
#endif
}
{
#ifndef CONFIG_SVINTO_SIM
/* enable the receiver */
- info->port[REG_REC_CTRL] =
+ info->ioport[REG_REC_CTRL] =
(info->rx_ctrl |= IO_MASK(R_SERIAL0_REC_CTRL, rec_enable));
#endif
}
CIRC_CNT(info->xmit.head,
info->xmit.tail,SERIAL_XMIT_SIZE)));
- xoff = IO_FIELD(R_SERIAL0_XOFF, xoff_char, STOP_CHAR(info->tty));
+ xoff = IO_FIELD(R_SERIAL0_XOFF, xoff_char,
+ STOP_CHAR(info->port.tty));
xoff |= IO_STATE(R_SERIAL0_XOFF, tx_stop, stop);
if (tty->termios->c_iflag & IXON ) {
xoff |= IO_STATE(R_SERIAL0_XOFF, auto_xoff, enable);
}
- *((unsigned long *)&info->port[REG_XOFF]) = xoff;
+ *((unsigned long *)&info->ioport[REG_XOFF]) = xoff;
local_irq_restore(flags);
}
}
xoff |= IO_STATE(R_SERIAL0_XOFF, auto_xoff, enable);
}
- *((unsigned long *)&info->port[REG_XOFF]) = xoff;
+ *((unsigned long *)&info->ioport[REG_XOFF]) = xoff;
if (!info->uses_dma_out &&
info->xmit.head != info->xmit.tail && info->xmit.buf)
e100_enable_serial_tx_ready_irq(info);
info->icount.rx++;
} else {
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
tty_insert_flip_char(tty, data, flag);
info->icount.rx++;
}
descr->status = 0;
DFLOW( DEBUG_LOG(info->line, "RX %lu\n", recvl);
- if (info->tty->stopped) {
+ if (info->port.tty->stopped) {
unsigned char *buf = phys_to_virt(descr->buf);
DEBUG_LOG(info->line, "rx 0x%02X\n", buf[0]);
DEBUG_LOG(info->line, "rx 0x%02X\n", buf[1]);
IO_STATE(R_DMA_CH6_CLR_INTR, clr_descr, do) |
IO_STATE(R_DMA_CH6_CLR_INTR, clr_eop, do);
- tty = info->tty;
+ tty = info->port.tty;
if (!tty) /* Something wrong... */
return;
handle_all_descr_data(info);
/* Read the status register to detect errors */
- rstat = info->port[REG_STATUS];
+ rstat = info->ioport[REG_STATUS];
if (rstat & IO_MASK(R_SERIAL0_STATUS, xoff_detect) ) {
DFLOW(DEBUG_LOG(info->line, "XOFF detect stat %x\n", rstat));
}
/* If we got an error, we must reset it by reading the
* data_in field
*/
- unsigned char data = info->port[REG_DATA];
+ unsigned char data = info->ioport[REG_DATA];
PROCSTAT(ser_stat[info->line].errors_cnt++);
DEBUG_LOG(info->line, "#dERR: s d 0x%04X\n",
/* We check data_avail bit to determine if data has
* arrived since last time
*/
- unsigned char rstat = info->port[REG_STATUS];
+ unsigned char rstat = info->ioport[REG_STATUS];
/* error or datavail? */
if (rstat & SER_ERROR_MASK) {
TIMERD(DEBUG_LOG(info->line, "timeout: rstat 0x%03X\n",
rstat | (info->line << 8)));
/* Read data to clear status flags */
- (void)info->port[REG_DATA];
+ (void)info->ioport[REG_DATA];
info->forced_eop = 0;
START_FLUSH_FAST_TIMER(info, "magic");
unsigned long flags;
local_irq_save(flags);
- tty = info->tty;
+ tty = info->port.tty;
if (!tty) {
local_irq_restore(flags);
struct e100_serial * handle_ser_rx_interrupt_no_dma(struct e100_serial *info)
{
unsigned long data_read;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
if (!tty) {
printk("!NO TTY!\n");
}
/* Read data and status at the same time */
- data_read = *((unsigned long *)&info->port[REG_DATA_STATUS32]);
+ data_read = *((unsigned long *)&info->ioport[REG_DATA_STATUS32]);
more_data:
if (data_read & IO_MASK(R_SERIAL0_READ, xoff_detect) ) {
DFLOW(DEBUG_LOG(info->line, "XOFF detect\n", 0));
data_in, data_read);
char flag = TTY_NORMAL;
if (info->errorcode == ERRCODE_INSERT_BREAK) {
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
tty_insert_flip_char(tty, 0, flag);
info->icount.rx++;
}
info->icount.rx++;
- data_read = *((unsigned long *)&info->port[REG_DATA_STATUS32]);
+ data_read = *((unsigned long *)&info->ioport[REG_DATA_STATUS32]);
if (data_read & IO_MASK(R_SERIAL0_READ, data_avail)) {
DEBUG_LOG(info->line, "ser_rx %c in loop\n", IO_EXTRACT(R_SERIAL0_READ, data_in, data_read));
goto more_data;
}
- tty_flip_buffer_push(info->tty);
+ tty_flip_buffer_push(info->port.tty);
return info;
}
return handle_ser_rx_interrupt_no_dma(info);
}
/* DMA is used */
- rstat = info->port[REG_STATUS];
+ rstat = info->ioport[REG_STATUS];
if (rstat & IO_MASK(R_SERIAL0_STATUS, xoff_detect) ) {
DFLOW(DEBUG_LOG(info->line, "XOFF detect\n", 0));
}
/* If we got an error, we must reset it by reading the
* data_in field
*/
- data = info->port[REG_DATA];
+ data = info->ioport[REG_DATA];
DINTR1(DEBUG_LOG(info->line, "ser_rx! %c\n", data));
DINTR1(DEBUG_LOG(info->line, "ser_rx err stat %02X\n", rstat));
if (!data && (rstat & SER_FRAMING_ERR_MASK)) {
unsigned char rstat;
DFLOW(DEBUG_LOG(info->line, "tx_int: xchar 0x%02X\n", info->x_char));
local_irq_save(flags);
- rstat = info->port[REG_STATUS];
+ rstat = info->ioport[REG_STATUS];
DFLOW(DEBUG_LOG(info->line, "stat %x\n", rstat));
- info->port[REG_TR_DATA] = info->x_char;
+ info->ioport[REG_TR_DATA] = info->x_char;
info->icount.tx++;
info->x_char = 0;
/* We must enable since it is disabled in ser_interrupt */
/* We only use normal tx interrupt when sending x_char */
DFLOW(DEBUG_LOG(info->line, "tx_int: xchar sent\n", 0));
local_irq_save(flags);
- rstat = info->port[REG_STATUS];
+ rstat = info->ioport[REG_STATUS];
DFLOW(DEBUG_LOG(info->line, "stat %x\n", rstat));
e100_disable_serial_tx_ready_irq(info);
- if (info->tty->stopped)
- rs_stop(info->tty);
+ if (info->port.tty->stopped)
+ rs_stop(info->port.tty);
/* Enable the DMA channel and tell it to continue */
e100_enable_txdma_channel(info);
/* Wait 12 cycles before doing the DMA command */
}
/* Normal char-by-char interrupt */
if (info->xmit.head == info->xmit.tail
- || info->tty->stopped
- || info->tty->hw_stopped) {
- DFLOW(DEBUG_LOG(info->line, "tx_int: stopped %i\n", info->tty->stopped));
+ || info->port.tty->stopped
+ || info->port.tty->hw_stopped) {
+ DFLOW(DEBUG_LOG(info->line, "tx_int: stopped %i\n",
+ info->port.tty->stopped));
e100_disable_serial_tx_ready_irq(info);
info->tr_running = 0;
return;
DINTR2(DEBUG_LOG(info->line, "tx_int %c\n", info->xmit.buf[info->xmit.tail]));
/* Send a byte, rs485 timing is critical so turn of ints */
local_irq_save(flags);
- info->port[REG_TR_DATA] = info->xmit.buf[info->xmit.tail];
+ info->ioport[REG_TR_DATA] = info->xmit.buf[info->xmit.tail];
info->xmit.tail = (info->xmit.tail + 1) & (SERIAL_XMIT_SIZE-1);
info->icount.tx++;
if (info->xmit.head == info->xmit.tail) {
info = container_of(work, struct e100_serial, work);
- tty = info->tty;
+ tty = info->port.tty;
if (!tty)
return;
/* Bits and pieces collected from below. Better to have them
in one ifdef:ed clause than to mix in a lot of ifdefs,
right? */
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit.head = info->xmit.tail = 0;
info->first_recv_buffer = info->last_recv_buffer = NULL;
e100_disable_txdma_channel(info);
}
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit.head = info->xmit.tail = 0;
info->first_recv_buffer = info->last_recv_buffer = NULL;
/* dummy read to reset any serial errors */
- (void)info->port[REG_DATA];
+ (void)info->ioport[REG_DATA];
/* enable the interrupts */
if (info->uses_dma_out)
/* shut down the transmitter and receiver */
DFLOW(DEBUG_LOG(info->line, "shutdown %i\n", info->line));
e100_disable_rx(info);
- info->port[REG_TR_CTRL] = (info->tx_ctrl &= ~0x40);
+ info->ioport[REG_TR_CTRL] = (info->tx_ctrl &= ~0x40);
/* disable interrupts, reset dma channels */
if (info->uses_dma_in) {
descr[i].buf = 0;
}
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
/* hang up DTR and RTS if HUPCL is enabled */
e100_dtr(info, 0);
e100_rts(info, 0); /* could check CRTSCTS before doing this */
}
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->flags &= ~ASYNC_INITIALIZED;
local_irq_restore(flags);
unsigned long flags;
/* first some safety checks */
- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return;
- if (!info->port)
+ if (!info->ioport)
return;
- cflag = info->tty->termios->c_cflag;
+ cflag = info->port.tty->termios->c_cflag;
/* possibly, the tx/rx should be disabled first to do this safely */
info->baud = cflag_to_baud(cflag);
#ifndef CONFIG_SVINTO_SIM
- info->port[REG_BAUD] = cflag_to_etrax_baud(cflag);
+ info->ioport[REG_BAUD] = cflag_to_etrax_baud(cflag);
#endif /* CONFIG_SVINTO_SIM */
}
/* actually write the control regs to the hardware */
- info->port[REG_TR_CTRL] = info->tx_ctrl;
- info->port[REG_REC_CTRL] = info->rx_ctrl;
- xoff = IO_FIELD(R_SERIAL0_XOFF, xoff_char, STOP_CHAR(info->tty));
+ info->ioport[REG_TR_CTRL] = info->tx_ctrl;
+ info->ioport[REG_REC_CTRL] = info->rx_ctrl;
+ xoff = IO_FIELD(R_SERIAL0_XOFF, xoff_char, STOP_CHAR(info->port.tty));
xoff |= IO_STATE(R_SERIAL0_XOFF, tx_stop, enable);
- if (info->tty->termios->c_iflag & IXON ) {
- DFLOW(DEBUG_LOG(info->line, "FLOW XOFF enabled 0x%02X\n", STOP_CHAR(info->tty)));
+ if (info->port.tty->termios->c_iflag & IXON ) {
+ DFLOW(DEBUG_LOG(info->line, "FLOW XOFF enabled 0x%02X\n",
+ STOP_CHAR(info->port.tty)));
xoff |= IO_STATE(R_SERIAL0_XOFF, auto_xoff, enable);
}
- *((unsigned long *)&info->port[REG_XOFF]) = xoff;
+ *((unsigned long *)&info->ioport[REG_XOFF]) = xoff;
local_irq_restore(flags);
#endif /* !CONFIG_SVINTO_SIM */
#ifdef SERIAL_DEBUG_DATA
if (info->line == SERIAL_DEBUG_LINE)
printk("rs_raw_write (%d), status %d\n",
- count, info->port[REG_STATUS]);
+ count, info->ioport[REG_STATUS]);
#endif
#ifdef CONFIG_SVINTO_SIM
memset(&tmp, 0, sizeof(tmp));
tmp.type = info->type;
tmp.line = info->line;
- tmp.port = (int)info->port;
+ tmp.port = (int)info->ioport;
tmp.irq = info->irq;
tmp.flags = info->flags;
tmp.baud_base = info->baud_base;
info->type = new_serial.type;
info->close_delay = new_serial.close_delay;
info->closing_wait = new_serial.closing_wait;
- info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+ info->port.tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
check_and_exit:
if (info->flags & ASYNC_INITIALIZED) {
}
#endif
-static void
+static int
rs_break(struct tty_struct *tty, int break_state)
{
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
unsigned long flags;
- if (!info->port)
- return;
+ if (!info->ioport)
+ return -EIO;
local_irq_save(flags);
if (break_state == -1) {
/* Set bit 7 (txd) and 6 (tr_enable) */
info->tx_ctrl |= (0x80 | 0x40);
}
- info->port[REG_TR_CTRL] = info->tx_ctrl;
+ info->ioport[REG_TR_CTRL] = info->tx_ctrl;
local_irq_restore(flags);
+ return 0;
}
static int
tty_ldisc_flush(tty);
tty->closing = 0;
info->event = 0;
- info->tty = 0;
+ info->port.tty = NULL;
if (info->blocked_open) {
if (info->close_delay)
schedule_timeout_interruptible(info->close_delay);
info->event = 0;
info->count = 0;
info->flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = 0;
+ info->port.tty = NULL;
wake_up_interruptible(&info->open_wait);
}
info->count++;
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
- info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+ info->port.tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
if (!tmp_buf) {
page = get_zeroed_page(GFP_KERNEL);
unsigned long tmp;
ret = sprintf(buf, "%d: uart:E100 port:%lX irq:%d",
- info->line, (unsigned long)info->port, info->irq);
+ info->line, (unsigned long)info->ioport, info->irq);
- if (!info->port || (info->type == PORT_UNKNOWN)) {
+ if (!info->ioport || (info->type == PORT_UNKNOWN)) {
ret += sprintf(buf+ret, "\n");
return ret;
}
(unsigned long)info->max_recv_cnt);
#if 1
- if (info->tty) {
+ if (info->port.tty) {
- if (info->tty->stopped)
+ if (info->port.tty->stopped)
ret += sprintf(buf+ret, " stopped:%i",
- (int)info->tty->stopped);
- if (info->tty->hw_stopped)
+ (int)info->port.tty->stopped);
+ if (info->port.tty->hw_stopped)
ret += sprintf(buf+ret, " hw_stopped:%i",
- (int)info->tty->hw_stopped);
+ (int)info->port.tty->hw_stopped);
}
{
- unsigned char rstat = info->port[REG_STATUS];
+ unsigned char rstat = info->ioport[REG_STATUS];
if (rstat & IO_MASK(R_SERIAL0_STATUS, xoff_detect) )
ret += sprintf(buf+ret, " xoff_detect:1");
}
info->uses_dma_in = 0;
info->uses_dma_out = 0;
info->line = i;
- info->tty = 0;
+ info->port.tty = NULL;
info->type = PORT_ETRAX;
info->tr_running = 0;
info->forced_eop = 0;
if (info->enabled) {
printk(KERN_INFO "%s%d at 0x%x is a builtin UART with DMA\n",
- serial_driver->name, info->line, (unsigned int)info->port);
+ serial_driver->name, info->line, (unsigned int)info->ioport);
}
}
#ifdef CONFIG_ETRAX_FAST_TIMER
projects / linux-2.6-omap-h63xx.git / blobdiff