Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

[pandora-kernel.git] / drivers / serial / bfin_5xx.c

diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index f20952c..9d85437 100644 (file)
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -49,6 +49,7 @@
 #define DMA_RX_YCOUNT          (PAGE_SIZE / DMA_RX_XCOUNT)
 
 #define DMA_RX_FLUSH_JIFFIES   (HZ / 50)
+#define CTS_CHECK_JIFFIES      (HZ / 50)
 
 #ifdef CONFIG_SERIAL_BFIN_DMA
 static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart);
@@ -174,7 +175,7 @@ int kgdb_get_debug_char(void)
 #ifdef CONFIG_SERIAL_BFIN_PIO
 static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
 {
-       struct tty_struct *tty = uart->port.info->tty;
+       struct tty_struct *tty = uart->port.info->port.tty;
        unsigned int status, ch, flg;
        static struct timeval anomaly_start = { .tv_sec = 0 };
 
@@ -290,11 +291,6 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart)
 {
        struct circ_buf *xmit = &uart->port.info->xmit;
 
-       if (uart->port.x_char) {
-               UART_PUT_CHAR(uart, uart->port.x_char);
-               uart->port.icount.tx++;
-               uart->port.x_char = 0;
-       }
        /*
         * Check the modem control lines before
         * transmitting anything.
@@ -306,6 +302,12 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart)
                return;
        }
 
+       if (uart->port.x_char) {
+               UART_PUT_CHAR(uart, uart->port.x_char);
+               uart->port.icount.tx++;
+               uart->port.x_char = 0;
+       }
+
        while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) {
                UART_PUT_CHAR(uart, xmit->buf[xmit->tail]);
                xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
@@ -345,15 +347,6 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id)
 }
 #endif
 
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
-static void bfin_serial_do_work(struct work_struct *work)
-{
-       struct bfin_serial_port *uart = container_of(work, struct bfin_serial_port, cts_workqueue);
-
-       bfin_serial_mctrl_check(uart);
-}
-#endif
-
 #ifdef CONFIG_SERIAL_BFIN_DMA
 static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
 {
@@ -361,6 +354,12 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
 
        uart->tx_done = 0;
 
+       /*
+        * Check the modem control lines before
+        * transmitting anything.
+        */
+       bfin_serial_mctrl_check(uart);
+
        if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) {
                uart->tx_count = 0;
                uart->tx_done = 1;
@@ -373,12 +372,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
                uart->port.x_char = 0;
        }
 
-       /*
-        * Check the modem control lines before
-        * transmitting anything.
-        */
-       bfin_serial_mctrl_check(uart);
-
        uart->tx_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE);
        if (uart->tx_count > (UART_XMIT_SIZE - xmit->tail))
                uart->tx_count = UART_XMIT_SIZE - xmit->tail;
@@ -400,7 +393,7 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
 
 static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
 {
-       struct tty_struct *tty = uart->port.info->tty;
+       struct tty_struct *tty = uart->port.info->port.tty;
        int i, flg, status;
 
        status = UART_GET_LSR(uart);
@@ -559,13 +552,16 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart)
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
        unsigned int status;
        struct uart_info *info = uart->port.info;
-       struct tty_struct *tty = info->tty;
+       struct tty_struct *tty = info->port.tty;
 
        status = bfin_serial_get_mctrl(&uart->port);
        uart_handle_cts_change(&uart->port, status & TIOCM_CTS);
        if (!(status & TIOCM_CTS)) {
                tty->hw_stopped = 1;
-               schedule_work(&uart->cts_workqueue);
+               uart->cts_timer.data = (unsigned long)(uart);
+               uart->cts_timer.function = (void *)bfin_serial_mctrl_check;
+               uart->cts_timer.expires = jiffies + CTS_CHECK_JIFFIES;
+               add_timer(&(uart->cts_timer));
        } else {
                tty->hw_stopped = 0;
        }
@@ -818,10 +814,10 @@ static void bfin_serial_set_ldisc(struct uart_port *port)
        int line = port->line;
        unsigned short val;
 
-       if (line >= port->info->tty->driver->num)
+       if (line >= port->info->port.tty->driver->num)
                return;
 
-       switch (port->info->tty->ldisc.num) {
+       switch (port->info->port.tty->ldisc.num) {
        case N_IRDA:
                val = UART_GET_GCTL(&bfin_serial_ports[line]);
                val |= (IREN | RPOLC);
@@ -885,7 +881,7 @@ static void __init bfin_serial_init_ports(void)
                init_timer(&(bfin_serial_ports[i].rx_dma_timer));
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
-               INIT_WORK(&bfin_serial_ports[i].cts_workqueue, bfin_serial_do_work);
+               init_timer(&(bfin_serial_ports[i].cts_timer));
                bfin_serial_ports[i].cts_pin        =
                        bfin_serial_resource[i].uart_cts_pin;
                bfin_serial_ports[i].rts_pin        =