diff options
Diffstat (limited to 'drivers/char')
31 files changed, 536 insertions, 560 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 977a74e16ef..d6fcd0a36f9 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -80,7 +80,7 @@ config SERIAL_NONSTANDARD config COMPUTONE tristate "Computone IntelliPort Plus serial support" - depends on SERIAL_NONSTANDARD && BROKEN_ON_SMP + depends on SERIAL_NONSTANDARD ---help--- This driver supports the entire family of Intelliport II/Plus controllers with the exception of the MicroChannel controllers and @@ -153,7 +153,7 @@ config DIGIEPCA config ESPSERIAL tristate "Hayes ESP serial port support" - depends on SERIAL_NONSTANDARD && ISA && BROKEN_ON_SMP && ISA_DMA_API + depends on SERIAL_NONSTANDARD && ISA && ISA_DMA_API help This is a driver which supports Hayes ESP serial ports. Both single port cards and multiport cards are supported. Make sure to read @@ -166,7 +166,7 @@ config ESPSERIAL config MOXA_INTELLIO tristate "Moxa Intellio support" - depends on SERIAL_NONSTANDARD && BROKEN_ON_SMP + depends on SERIAL_NONSTANDARD help Say Y here if you have a Moxa Intellio multiport serial card. diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 10c81ecdace..869518e4035 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -265,8 +265,9 @@ static _INLINE_ void receive_chars(struct async_struct *info) int status; int serdatr; struct tty_struct *tty = info->tty; - unsigned char ch; + unsigned char ch, flag; struct async_icount *icount; + int oe = 0; icount = &info->state->icount; @@ -282,15 +283,12 @@ static _INLINE_ void receive_chars(struct async_struct *info) status |= UART_LSR_OE; ch = serdatr & 0xff; - if (tty->flip.count >= TTY_FLIPBUF_SIZE) - goto ignore_char; - *tty->flip.char_buf_ptr = ch; icount->rx++; #ifdef SERIAL_DEBUG_INTR printk("DR%02x:%02x...", ch, status); #endif - *tty->flip.flag_buf_ptr = 0; + flag = TTY_NORMAL; /* * We don't handle parity or frame errors - but I have left @@ -319,7 +317,7 @@ static _INLINE_ void receive_chars(struct async_struct *info) * should be ignored. */ if (status & info->ignore_status_mask) - goto ignore_char; + goto out; status &= info->read_status_mask; @@ -327,33 +325,28 @@ static _INLINE_ void receive_chars(struct async_struct *info) #ifdef SERIAL_DEBUG_INTR printk("handling break...."); #endif - *tty->flip.flag_buf_ptr = TTY_BREAK; + flag = TTY_BREAK; if (info->flags & ASYNC_SAK) do_SAK(tty); } else if (status & UART_LSR_PE) - *tty->flip.flag_buf_ptr = TTY_PARITY; + flag = TTY_PARITY; else if (status & UART_LSR_FE) - *tty->flip.flag_buf_ptr = TTY_FRAME; + flag = TTY_FRAME; if (status & UART_LSR_OE) { /* * Overrun is special, since it's * reported immediately, and doesn't * affect the current character */ - if (tty->flip.count < TTY_FLIPBUF_SIZE) { - tty->flip.count++; - tty->flip.flag_buf_ptr++; - tty->flip.char_buf_ptr++; - *tty->flip.flag_buf_ptr = TTY_OVERRUN; - } + oe = 1; } } - tty->flip.flag_buf_ptr++; - tty->flip.char_buf_ptr++; - tty->flip.count++; - ignore_char: - + tty_insert_flip_char(tty, ch, flag); + if (oe == 1) + tty_insert_flip_char(tty, 0, TTY_OVERRUN); tty_flip_buffer_push(tty); +out: + return; } static _INLINE_ void transmit_chars(struct async_struct *info) diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index c8e7daecad7..39c61a71176 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -641,6 +641,7 @@ static char rcsid[] = #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/tty.h> +#include <linux/tty_flip.h> #include <linux/serial.h> #include <linux/major.h> #include <linux/string.h> @@ -1086,7 +1087,7 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs) int had_work; int mdm_change; int mdm_status; - + int len; if((cinfo = (struct cyclades_card *)dev_id) == 0){ #ifdef CY_DEBUG_INTERRUPTS printk("cyy_interrupt: spurious interrupt %d\n\r", irq); @@ -1163,63 +1164,43 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs) info->icount.rx++; continue; } - if (tty->flip.count < TTY_FLIPBUF_SIZE){ - tty->flip.count++; + if (tty_buffer_request_room(tty, 1)) { if (data & info->read_status_mask){ if(data & CyBREAK){ - *tty->flip.flag_buf_ptr++ = - TTY_BREAK; - *tty->flip.char_buf_ptr++ = - cy_readb(base_addr+(CyRDSR<<index)); + tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_BREAK); info->icount.rx++; if (info->flags & ASYNC_SAK){ do_SAK(tty); } }else if(data & CyFRAME){ - *tty->flip.flag_buf_ptr++ = - TTY_FRAME; - *tty->flip.char_buf_ptr++ = - cy_readb(base_addr+(CyRDSR<<index)); + tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_FRAME); info->icount.rx++; info->idle_stats.frame_errs++; }else if(data & CyPARITY){ - *tty->flip.flag_buf_ptr++ = - TTY_PARITY; - *tty->flip.char_buf_ptr++ = - cy_readb(base_addr+(CyRDSR<<index)); + /* Pieces of seven... */ + tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_PARITY); info->icount.rx++; info->idle_stats.parity_errs++; }else if(data & CyOVERRUN){ - *tty->flip.flag_buf_ptr++ = - TTY_OVERRUN; - *tty->flip.char_buf_ptr++ = 0; + tty_insert_flip_char(tty, 0, TTY_OVERRUN); info->icount.rx++; /* If the flip buffer itself is overflowing, we still lose the next incoming character. */ - if(tty->flip.count - < TTY_FLIPBUF_SIZE){ - tty->flip.count++; - *tty->flip.flag_buf_ptr++ = - TTY_NORMAL; - *tty->flip.char_buf_ptr++ = - cy_readb(base_addr+(CyRDSR<<index)); - info->icount.rx++; - } + tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_FRAME); + info->icount.rx++; info->idle_stats.overruns++; /* These two conditions may imply */ /* a normal read should be done. */ /* }else if(data & CyTIMEOUT){ */ /* }else if(data & CySPECHAR){ */ - }else{ - *tty->flip.flag_buf_ptr++ = 0; - *tty->flip.char_buf_ptr++ = 0; - info->icount.rx++; + }else { + tty_insert_flip_char(tty, 0, TTY_NORMAL); + info->icount.rx++; } }else{ - *tty->flip.flag_buf_ptr++ = 0; - *tty->flip.char_buf_ptr++ = 0; + tty_insert_flip_char(tty, 0, TTY_NORMAL); info->icount.rx++; } }else{ @@ -1240,14 +1221,10 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs) info->mon.char_max = char_count; info->mon.char_last = char_count; #endif - while(char_count--){ - if (tty->flip.count >= TTY_FLIPBUF_SIZE){ - break; - } - tty->flip.count++; + len = tty_buffer_request_room(tty, char_count); + while(len--){ data = cy_readb(base_addr+(CyRDSR<<index)); - *tty->flip.flag_buf_ptr++ = TTY_NORMAL; - *tty->flip.char_buf_ptr++ = data; + tty_insert_flip_char(tty, data, TTY_NORMAL); info->idle_stats.recv_bytes++; info->icount.rx++; #ifdef CY_16Y_HACK @@ -1256,7 +1233,7 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs) } info->idle_stats.recv_idle = jiffies; } - schedule_delayed_work(&tty->flip.work, 1); + schedule_delayed_work(&tty->buf.work, 1); } /* end of service */ cy_writeb(base_addr+(CyRIR<<index), (save_xir & 0x3f)); @@ -1551,6 +1528,7 @@ cyz_handle_rx(struct cyclades_port *info, struct cyclades_card *cinfo = &cy_card[info->card]; struct tty_struct *tty = info->tty; volatile int char_count; + int len; #ifdef BLOCKMOVE int small_count; #else @@ -1606,18 +1584,11 @@ cyz_handle_rx(struct cyclades_port *info, tty->flip.count += small_count; } #else - while(char_count--){ - if (tty->flip.count >= N_TTY_BUF_SIZE - tty->read_cnt) - break; - - if (tty->flip.count >= TTY_FLIPBUF_SIZE) - break; - + len = tty_buffer_request_room(tty, char_count); + while(len--){ data = cy_readb(cinfo->base_addr + rx_bufaddr + new_rx_get); new_rx_get = (new_rx_get + 1) & (rx_bufsize - 1); - tty->flip.count++; - *tty->flip.flag_buf_ptr++ = TTY_NORMAL; - *tty->flip.char_buf_ptr++ = data; + tty_insert_flip_char(tty, data, TTY_NORMAL); info->idle_stats.recv_bytes++; info->icount.rx++; } @@ -1635,7 +1606,7 @@ cyz_handle_rx(struct cyclades_port *info, } #endif info->idle_stats.recv_idle = jiffies; - schedule_delayed_work(&tty->flip.work, 1); + schedule_delayed_work(&tty->buf.work, 1); } /* Update rx_get */ cy_writel(&buf_ctrl->rx_get, new_rx_get); @@ -1763,23 +1734,17 @@ cyz_handle_cmd(struct cyclades_card *cinfo) switch(cmd) { case C_CM_PR_ERROR: - tty->flip.count++; - *tty->flip.flag_buf_ptr++ = TTY_PARITY; - *tty->flip.char_buf_ptr++ = 0; + tty_insert_flip_char(tty, 0, TTY_PARITY); info->icount.rx++; special_count++; break; case C_CM_FR_ERROR: - tty->flip.count++; - *tty->flip.flag_buf_ptr++ = TTY_FRAME; - *tty->flip.char_buf_ptr++ = 0; + tty_insert_flip_char(tty, 0, TTY_FRAME); info->icount.rx++; special_count++; break; case C_CM_RXBRK: - tty->flip.count++; - *tty->flip.flag_buf_ptr++ = TTY_BREAK; - *tty->flip.char_buf_ptr++ = 0; + tty_insert_flip_char(tty, 0, TTY_BREAK); info->icount.rx++; special_count++; break; @@ -1844,7 +1809,7 @@ cyz_handle_cmd(struct cyclades_card *cinfo) if(delta_count) cy_sched_event(info, Cy_EVENT_DELTA_WAKEUP); if(special_count) - schedule_delayed_work(&tty->flip.work, 1); + schedule_delayed_work(&tty->buf.work, 1); } } diff --git a/drivers/char/epca.c b/drivers/char/epca.c index 407708a001e..765c5c108bf 100644 --- a/drivers/char/epca.c +++ b/drivers/char/epca.c @@ -1786,9 +1786,7 @@ static void doevent(int crd) if (tty) { /* Begin if valid tty */ if (event & BREAK_IND) { /* Begin if BREAK_IND */ /* A break has been indicated */ - tty->flip.count++; - *tty->flip.flag_buf_ptr++ = TTY_BREAK; - *tty->flip.char_buf_ptr++ = 0; + tty_insert_flip_char(tty, 0, TTY_BREAK); tty_schedule_flip(tty); } else if (event & LOWTX_IND) { /* Begin LOWTX_IND */ if (ch->statusflags & LOWWAIT) @@ -2124,7 +2122,6 @@ static void receive_data(struct channel *ch) int dataToRead, wrapgap, bytesAvailable; unsigned int tail, head; unsigned int wrapmask; - int rc; /* --------------------------------------------------------------- This routine is called by doint when a receive data event @@ -2162,16 +2159,15 @@ static void receive_data(struct channel *ch) return; } - if (tty->flip.count == TTY_FLIPBUF_SIZE) + if (tty_buffer_request_room(tty, bytesAvailable + 1) == 0) return; if (readb(&bc->orun)) { writeb(0, &bc->orun); printk(KERN_WARNING "epca; overrun! DigiBoard device %s\n",tty->name); + tty_insert_flip_char(tty, 0, TTY_OVERRUN); } rxwinon(ch); - rptr = tty->flip.char_buf_ptr; - rc = tty->flip.count; while (bytesAvailable > 0) { /* Begin while there is data on the card */ wrapgap = (head >= tail) ? head - tail : ch->rxbufsize - tail; /* --------------------------------------------------------------- @@ -2183,8 +2179,7 @@ static void receive_data(struct channel *ch) /* -------------------------------------------------------------- Make sure we don't overflow the buffer ----------------------------------------------------------------- */ - if ((rc + dataToRead) > TTY_FLIPBUF_SIZE) - dataToRead = TTY_FLIPBUF_SIZE - rc; + dataToRead = tty_prepare_flip_string(tty, &rptr, dataToRead); if (dataToRead == 0) break; /* --------------------------------------------------------------- @@ -2192,13 +2187,9 @@ static void receive_data(struct channel *ch) for translation if necessary. ------------------------------------------------------------------ */ memcpy_fromio(rptr, ch->rxptr + tail, dataToRead); - rc += dataToRead; - rptr += dataToRead; tail = (tail + dataToRead) & wrapmask; bytesAvailable -= dataToRead; } /* End while there is data on the card */ - tty->flip.count = rc; - tty->flip.char_buf_ptr = rptr; globalwinon(ch); writew(tail, &bc->rout); /* Must be called with global data */ diff --git a/drivers/char/esp.c b/drivers/char/esp.c index 9f53d2fcc36..e469f641c72 100644 --- a/drivers/char/esp.c +++ b/drivers/char/esp.c @@ -345,26 +345,22 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) for (i = 0; i < num_bytes; i++) { if (!(err_buf->data[i] & status_mask)) { - *(tty->flip.char_buf_ptr++) = pio_buf->data[i]; + int flag = 0; if (err_buf->data[i] & 0x04) { - *(tty->flip.flag_buf_ptr++) = TTY_BREAK; - + flag = TTY_BREAK; if (info->flags & ASYNC_SAK) do_SAK(tty); } else if (err_buf->data[i] & 0x02) - *(tty->flip.flag_buf_ptr++) = TTY_FRAME; + flag = TTY_FRAME; else if (err_buf->data[i] & 0x01) - *(tty->flip.flag_buf_ptr++) = TTY_PARITY; - else - *(tty->flip.flag_buf_ptr++) = 0; - - tty->flip.count++; + flag = TTY_PARITY; + tty_insert_flip_char(tty, pio_buf->data[i], flag); } } - schedule_delayed_work(&tty->flip.work, 1); + schedule_delayed_work(&tty->buf.work, 1); info->stat_flags &= ~ESP_STAT_RX_TIMEOUT; release_pio_buffer(pio_buf); @@ -397,7 +393,6 @@ static inline void receive_chars_dma_done(struct esp_struct *info, int num_bytes; unsigned long flags; - flags=claim_dma_lock(); disable_dma(dma); clear_dma_ff(dma); @@ -408,38 +403,31 @@ static inline void receive_chars_dma_done(struct esp_struct *info, info->icount.rx += num_bytes; - memcpy(tty->flip.char_buf_ptr, dma_buffer, num_bytes); - tty->flip.char_buf_ptr += num_bytes; - tty->flip.count += num_bytes; - memset(tty->flip.flag_buf_ptr, 0, num_bytes); - tty->flip.flag_buf_ptr += num_bytes; - if (num_bytes > 0) { - tty->flip.flag_buf_ptr--; + tty_insert_flip_string(tty, dma_buffer, num_bytes - 1); status &= (0x1c & info->read_status_mask); + + /* Is the status significant or do we throw the last byte ? */ + if (!(status & info->ignore_status_mask)) { + int statflag = 0; - if (status & info->ignore_status_mask) { - tty->flip.count--; - tty->flip.char_buf_ptr--; - tty->flip.flag_buf_ptr--; - } else if (status & 0x10) { - *tty->flip.flag_buf_ptr = TTY_BREAK; - (info->icount.brk)++; - if (info->flags & ASYNC_SAK) - do_SAK(tty); - } else if (status & 0x08) { - *tty->flip.flag_buf_ptr = TTY_FRAME; - (info->icount.frame)++; - } - else if (status & 0x04) { - *tty->flip.flag_buf_ptr = TTY_PARITY; - (info->icount.parity)++; + if (status & 0x10) { + statflag = TTY_BREAK; + (info->icount.brk)++; + if (info->flags & ASYNC_SAK) + do_SAK(tty); + } else if (status & 0x08) { + statflag = TTY_FRAME; + (info->icount.frame)++; + } + else if (status & 0x04) { + statflag = TTY_PARITY; + (info->icount.parity)++; + } + tty_insert_flip_char(tty, dma_buffer[num_bytes - 1], statflag); } - - tty->flip.flag_buf_ptr++; - - schedule_delayed_work(&tty->flip.work, 1); + schedule_delayed_work(&tty->buf.work, 1); } if (dma_bytes != num_bytes) { @@ -693,8 +681,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id, num_bytes = serial_in(info, UART_ESI_STAT1) << 8; num_bytes |= serial_in(info, UART_ESI_STAT2); - if (num_bytes > (TTY_FLIPBUF_SIZE - info->tty->flip.count)) - num_bytes = TTY_FLIPBUF_SIZE - info->tty->flip.count; + num_bytes = tty_buffer_request_room(info->tty, num_bytes); if (num_bytes) { if (dma_bytes || diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index f9217763467..1994a92d473 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -597,9 +597,7 @@ static int hvc_poll(struct hvc_struct *hp) /* Read data if any */ for (;;) { - int count = N_INBUF; - if (count > (TTY_FLIPBUF_SIZE - tty->flip.count)) - count = TTY_FLIPBUF_SIZE - tty->flip.count; + int count = tty_buffer_request_room(tty, N_INBUF); /* If flip is full, just reschedule a later read */ if (count == 0) { @@ -635,7 +633,7 @@ static int hvc_poll(struct hvc_struct *hp) tty_insert_flip_char(tty, buf[i], 0); } - if (tty->flip.count) + if (count) tty_schedule_flip(tty); /* diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c index 53dc77c760f..831eb4e8d9d 100644 --- a/drivers/char/hvcs.c +++ b/drivers/char/hvcs.c @@ -456,12 +456,11 @@ static int hvcs_io(struct hvcs_struct *hvcsd) /* remove the read masks */ hvcsd->todo_mask &= ~(HVCS_READ_MASK); - if ((tty->flip.count + HVCS_BUFF_LEN) < TTY_FLIPBUF_SIZE) { + if (tty_buffer_request_room(tty, HVCS_BUFF_LEN) >= HVCS_BUFF_LEN) { got = hvc_get_chars(unit_address, &buf[0], HVCS_BUFF_LEN); - for (i=0;got && i<got;i++) - tty_insert_flip_char(tty, buf[i], TTY_NORMAL); + tty_insert_flip_string(tty, buf, got); } /* Give the TTY time to process the data we just sent. */ @@ -469,10 +468,9 @@ static int hvcs_io(struct hvcs_struct *hvcsd) hvcsd->todo_mask |= HVCS_QUICK_READ; spin_unlock_irqrestore(&hvcsd->lock, flags); - if (tty->flip.count) { - /* This is synch because tty->low_latency == 1 */ + /* This is synch because tty->low_latency == 1 */ + if(got) tty_flip_buffer_push(tty); - } if (!got) { /* Do this _after_ the flip_buffer_push */ diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index 1bbf507adda..86033bed5d6 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -115,6 +115,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/tty.h> +#include <linux/tty_flip.h> #include <linux/termios.h> #include <linux/fs.h> #include <linux/sched.h> @@ -773,6 +774,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, unsigned short base, header, word_count, count; unsigned char channel; short byte_count; + unsigned char *rp; card = (struct isi_board *) dev_id; @@ -903,14 +905,10 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, break; case 1: /* Received Break !!! */ - if (tty->flip.count >= TTY_FLIPBUF_SIZE) - break; - *tty->flip.flag_buf_ptr++ = TTY_BREAK; - *tty->flip.char_buf_ptr++ = 0; - tty->flip.count++; + tty_insert_flip_char(tty, 0, TTY_BREAK); if (port->flags & ASYNC_SAK) do_SAK(tty); - schedule_delayed_work(&tty->flip.work, 1); + tty_flip_buffer_push(tty); break; case 2: /* Statistics */ @@ -923,23 +921,19 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, } } else { /* Data Packet */ - count = min_t(unsigned short, byte_count, (TTY_FLIPBUF_SIZE - tty->flip.count)); + + count = tty_prepare_flip_string(tty, &rp, byte_count & ~1); #ifdef ISICOM_DEBUG printk(KERN_DEBUG "ISICOM: Intr: Can rx %d of %d bytes.\n", count, byte_count); #endif word_count = count >> 1; - insw(base, tty->flip.char_buf_ptr, word_count); - tty->flip.char_buf_ptr += (word_count << 1); + insw(base, rp, word_count); byte_count -= (word_count << 1); if (count & 0x0001) { - *tty->flip.char_buf_ptr++ = (char)(inw(base) & 0xff); + tty_insert_flip_char(tty, inw(base) & 0xff, TTY_NORMAL); byte_count -= 2; } - memset(tty->flip.flag_buf_ptr, 0, count); - tty->flip.flag_buf_ptr += count; - tty->flip.count += count; - if (byte_count > 0) { printk(KERN_DEBUG "ISICOM: Intr(0x%x:%d): Flip buffer overflow! dropping bytes...\n", base, channel+1); @@ -948,7 +942,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, byte_count -= 2; } } - schedule_delayed_work(&tty->flip.work, 1); + tty_flip_buffer_push(tty); } if (card->isa == YES) ClearInterrupt(base); diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index 24435f8daa6..28c5a3193b8 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -2711,17 +2711,13 @@ static void stli_read(stlibrd_t *brdp, stliport_t *portp) stlen = size - tail; } - len = MIN(len, (TTY_FLIPBUF_SIZE - tty->flip.count)); + len = tty_buffer_request_room(tty, len); + /* FIXME : iomap ? */ shbuf = (volatile char *) EBRDGETMEMPTR(brdp, portp->rxoffset); while (len > 0) { stlen = MIN(len, stlen); - memcpy(tty->flip.char_buf_ptr, (char *) (shbuf + tail), stlen); - memset(tty->flip.flag_buf_ptr, 0, stlen); - tty->flip.char_buf_ptr += stlen; - tty->flip.flag_buf_ptr += stlen; - tty->flip.count += stlen; - + tty_insert_flip_string(tty, (char *)(shbuf + tail), stlen); len -= stlen; tail += stlen; if (tail >= size) { @@ -2906,16 +2902,12 @@ static int stli_hostcmd(stlibrd_t *brdp, stliport_t *portp) if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) { if (tty != (struct tty_struct *) NULL) { - if (tty->flip.count < TTY_FLIPBUF_SIZE) { - tty->flip.count++; - *tty->flip.flag_buf_ptr++ = TTY_BREAK; - *tty->flip.char_buf_ptr++ = 0; - if (portp->flags & ASYNC_SAK) { - do_SAK(tty); - EBRDENABLE(brdp); - } - tty_schedule_flip(tty); + tty_insert_flip_char(tty, 0, TTY_BREAK); + if (portp->flags & ASYNC_SAK) { + do_SAK(tty); + EBRDENABLE(brdp); } + tty_schedule_flip(tty); } } @@ -4940,7 +4932,7 @@ static int stli_portcmdstats(stliport_t *portp) if (portp->tty != (struct tty_struct *) NULL) { if (portp->tty->driver_data == portp) { stli_comstats.ttystate = portp->tty->flags; - stli_comstats.rxbuffered = portp->tty->flip.count; + stli_comstats.rxbuffered = -1 /*portp->tty->flip.count*/; if (portp->tty->termios != (struct termios *) NULL) { stli_comstats.cflags = portp->tty->termios->c_cflag; stli_comstats.iflags = portp->tty->termios->c_iflag; diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index 46a3a8ccd65..5e3ef552219 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -269,7 +269,7 @@ static int MoxaPortDCDChange(int); static int MoxaPortDCDON(int); static void MoxaPortFlushData(int, int); static int MoxaPortWriteData(int, unsigned char *, int); -static int MoxaPortReadData(int, unsigned char *, int); +static int MoxaPortReadData(int, struct tty_struct *tty); static int MoxaPortTxQueue(int); static int MoxaPortRxQueue(int); static int MoxaPortTxFree(int); @@ -301,6 +301,8 @@ static struct tty_operations moxa_ops = { .tiocmset = moxa_tiocmset, }; +static spinlock_t moxa_lock = SPIN_LOCK_UNLOCKED; + #ifdef CONFIG_PCI static int moxa_get_PCI_conf(struct pci_dev *p, int board_type, moxa_board_conf * board) { @@ -645,10 +647,10 @@ static int moxa_write(struct tty_struct *tty, if (ch == NULL) return (0); port = ch->port; - save_flags(flags); - cli(); + + spin_lock_irqsave(&moxa_lock, flags); len = MoxaPortWriteData(port, (unsigned char *) buf, count); - restore_flags(flags); + spin_unlock_irqrestore(&moxa_lock, flags); /********************************************* if ( !(ch->statusflags & LOWWAIT) && @@ -723,11 +725,10 @@ static void moxa_put_char(struct tty_struct *tty, unsigned char c) if (ch == NULL) return; port = ch->port; - save_flags(flags); - cli(); + spin_lock_irqsave(&moxa_lock, flags); moxaXmitBuff[0] = c; MoxaPortWriteData(port, moxaXmitBuff, 1); - restore_flags(flags); + spin_unlock_irqrestore(&moxa_lock, flags); /************************************************ if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) ) *************************************************/ @@ -1030,12 +1031,12 @@ static int block_till_ready(struct tty_struct *tty, struct file *filp, printk("block_til_ready before block: ttys%d, count = %d\n", ch->line, ch->count); #endif - save_flags(flags); - cli(); + spin_lock_irqsave(&moxa_lock, flags); if (!tty_hung_up_p(filp)) ch->count--; - restore_flags(flags); ch->blocked_open++; + spin_unlock_irqrestore(&moxa_lock, flags); + while (1) { set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || @@ -1062,17 +1063,21 @@ static int block_till_ready(struct tty_struct *tty, struct file *filp, } set_current_state(TASK_RUNNING); remove_wait_queue(&ch->open_wait, &wait); + + spin_lock_irqsave(&moxa_lock, flags); if (!tty_hung_up_p(filp)) ch->count++; ch->blocked_open--; + spin_unlock_irqrestore(&moxa_lock, flags); #ifdef SERIAL_DEBUG_OPEN printk("block_til_ready after blocking: ttys%d, count = %d\n", ch->line, ch->count); #endif if (retval) return (retval); + /* FIXME: review to see if we need to use set_bit on these */ ch->asyncflags |= ASYNC_NORMAL_ACTIVE; - return (0); + return 0; } static void setup_empty_event(struct tty_struct *tty) @@ -1080,15 +1085,14 @@ static void setup_empty_event(struct tty_struct *tty) struct moxa_str *ch = tty->driver_data; unsigned long flags; - save_flags(flags); - cli(); + spin_lock_irqsave(&moxa_lock, flags); ch->statusflags |= EMPTYWAIT; moxaEmptyTimer_on[ch->port] = 0; del_timer(&moxaEmptyTimer[ch->port]); moxaEmptyTimer[ch->port].expires = jiffies + HZ; moxaEmptyTimer_on[ch->port] = 1; add_timer(&moxaEmptyTimer[ch->port]); - restore_flags(flags); + spin_unlock_irqrestore(&moxa_lock, flags); } static void check_xmit_empty(unsigned long data) @@ -1135,8 +1139,6 @@ static void receive_data(struct moxa_str |