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path: root/drivers/char/esp.c
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Diffstat (limited to 'drivers/char/esp.c')
-rw-r--r--drivers/char/esp.c67
1 files changed, 27 insertions, 40 deletions
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index 9f53d2fcc360..e469f641c728 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 ||