rk29:uart->rkserial.c add function printing what received and sent and modify uart2...

diff --git a/drivers/serial/rk_serial.c b/drivers/serial/rk_serial.c
index bef5b8ffeeb243b79db0bba466eb574f9e3fd9c5..623325c64dfad6d3504eeb8d75dc89d3a385de2f 100644 (file)
--- a/drivers/serial/rk_serial.c
+++ b/drivers/serial/rk_serial.c
@@ -51,6 +51,10 @@
 #include <asm/io.h>\r
 #include <asm/irq.h>\r
 \r
+#include <mach/iomux.h>\r
+#include <mach/gpio.h>\r
+\r
+\r
 \r
 #define PORT_RK                90\r
 #define UART_USR       0x1F    /* UART Status Register */\r
@@ -90,37 +94,35 @@
 #define USE_TIMER 1           // use timer for dma transport\r
 #define THRE_MODE 0X00   //0yhh\r
 \r
+//define which uart the bluetooth use on which board\r
+#ifdef CONFIG_MACH_RK29_PHONESDK\r
+#define BLUETOOTH_UART  2\r
+#else\r
+#define BLUETOOTH_UART  2\r
+#endif\r
+\r
+\r
 static struct uart_driver serial_rk_reg;\r
 \r
 /*\r
  * Debugging.\r
  */\r
-#define DBG_PORT 1\r
+\r
+#define DBG_PORT  2    // 0,1,2,3,  other numbers is default\r
+#if 0\r
+#define DBG(msg...)    printk(msg);\r
+#define DEBUG_INTR(fmt...)     if (!uart_console(&up->port)) DBG(fmt)\r
+#else\r
+#define DBG(...)\r
+#define DEBUG_INTR(fmt...)     do { } while (0)\r
+#endif\r
+\r
 #ifdef CONFIG_SERIAL_CORE_CONSOLE\r
 #define uart_console(port)     ((port)->cons && (port)->cons->index == (port)->line)\r
 #else\r
 #define uart_console(port)     (0)\r
 #endif\r
 \r
-#ifdef DEBUG\r
-extern void printascii(const char *);\r
-\r
-static void dbg(const char *fmt, ...)\r
-{\r
-       va_list va;\r
-       char buff[256];\r
-\r
-       va_start(va, fmt);\r
-       vsprintf(buff, fmt, va);\r
-       va_end(va);\r
-\r
-       printascii(buff);\r
-}\r
-\r
-#define DEBUG_INTR(fmt...)     if (!uart_console(&up->port)) dbg(fmt)\r
-#else\r
-#define DEBUG_INTR(fmt...)     do { } while (0)\r
-#endif\r
 \r
 \r
 /* added by hhb@rock-chips.com for uart dma transfer */\r
@@ -303,21 +305,9 @@ static void serial_rk_start_tx(struct uart_port *port)
 {\r
        struct uart_rk_port *up =\r
                container_of(port, struct uart_rk_port, port);\r
-/*\r
- *  struct circ_buf *xmit = &port->state->xmit;\r
-    int size = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE);\r
-       if(size > 64){\r
-               serial_rk_start_tx_dma(port);\r
-       }\r
-       else{\r
-               serial_rk_enable_ier_thri(up);\r
-       }\r
-*/\r
-\r
        if(0 == serial_rk_start_tx_dma(port)){\r
                serial_rk_enable_ier_thri(up);\r
        }\r
-\r
 }\r
 \r
 \r
@@ -721,10 +711,15 @@ static void
 receive_chars(struct uart_rk_port *up, unsigned int *status)\r
 {\r
        struct tty_struct *tty = up->port.state->port.tty;\r
+       struct uart_port *port = &up->port;\r
        unsigned char ch, lsr = *status;\r
        int max_count = 256;\r
        char flag;\r
 \r
+       if(DBG_PORT == port->line) {\r
+               DBG("RX:");\r
+       }\r
+\r
        do {\r
                if (likely(lsr & UART_LSR_DR))\r
                        ch = serial_in(up, UART_RX);\r
@@ -784,7 +779,9 @@ receive_chars(struct uart_rk_port *up, unsigned int *status)
                        goto ignore_char;\r
 \r
                uart_insert_char(&up->port, lsr, UART_LSR_OE, ch, flag);\r
-\r
+               if(DBG_PORT == port->line) {\r
+                       DBG("0x%x, ", ch);\r
+               }\r
 ignore_char:\r
                lsr = serial_in(up, UART_LSR);\r
        } while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (max_count-- > 0));\r
@@ -792,11 +789,17 @@ ignore_char:
        tty_flip_buffer_push(tty);\r
        spin_lock(&up->port.lock);\r
        *status = lsr;\r
+\r
+       if(DBG_PORT == port->line) {\r
+               DBG("\n");\r
+       }\r
+\r
 }\r
 \r
 static void transmit_chars(struct uart_rk_port *up)\r
 {\r
        struct circ_buf *xmit = &up->port.state->xmit;\r
+       struct uart_port *port = &up->port;\r
        int count;\r
 \r
        if (up->port.x_char) {\r
@@ -814,11 +817,18 @@ static void transmit_chars(struct uart_rk_port *up)
                return;\r
        }\r
 \r
+       if(DBG_PORT == port->line) {\r
+               DBG("TX:");\r
+       }\r
+\r
        count = up->tx_loadsz;\r
        do {\r
                serial_out(up, UART_TX, xmit->buf[xmit->tail]);\r
                xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);\r
                up->port.icount.tx++;\r
+               if(DBG_PORT == port->line) {\r
+                       DBG("0x%x, ", xmit->buf[xmit->tail]);\r
+               }\r
                if (uart_circ_empty(xmit))\r
                        break;\r
        } while (--count > 0);\r
@@ -826,6 +836,10 @@ static void transmit_chars(struct uart_rk_port *up)
        if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)\r
                uart_write_wakeup(&up->port);\r
 \r
+       if(DBG_PORT == port->line) {\r
+               DBG("\n");\r
+       }\r
+\r
        DEBUG_INTR("THRE...");\r
 \r
        if (uart_circ_empty(xmit))\r
@@ -1230,43 +1244,32 @@ serial_rk_set_termios(struct uart_port *port, struct ktermios *termios,
        struct uart_rk_port *up =\r
                container_of(port, struct uart_rk_port, port);\r
        unsigned char cval, fcr = 0;\r
-       unsigned long flags, bits;\r
+       unsigned long flags;\r
        unsigned int baud, quot;\r
 \r
        dev_dbg(port->dev, "+%s\n", __func__);\r
 \r
-       //start bit\r
-       bits += 1;\r
        switch (termios->c_cflag & CSIZE) {\r
        case CS5:\r
                cval = UART_LCR_WLEN5;\r
-               bits += 5;\r
                break;\r
        case CS6:\r
                cval = UART_LCR_WLEN6;\r
-               bits += 6;\r
                break;\r
        case CS7:\r
                cval = UART_LCR_WLEN7;\r
-               bits += 7;\r
                break;\r
        default:\r
        case CS8:\r
                cval = UART_LCR_WLEN8;\r
-               bits += 8;\r
                break;\r
        }\r
 \r
        if (termios->c_cflag & CSTOPB){\r
                cval |= UART_LCR_STOP;\r
-               bits += 2;\r
-       }\r
-       else{\r
-               bits += 1;\r
        }\r
        if (termios->c_cflag & PARENB){\r
                cval |= UART_LCR_PARITY;\r
-               bits += 1;\r
        }\r
        if (!(termios->c_cflag & PARODD)){\r
                cval |= UART_LCR_EPAR;\r
@@ -1285,10 +1288,6 @@ serial_rk_set_termios(struct uart_port *port, struct ktermios *termios,
 \r
        quot = uart_get_divisor(port, baud);\r
 \r
-\r
-       dev_info(up->port.dev, "*****baud:%d*******\n", baud);\r
-       dev_info(up->port.dev, "*****quot:%d*******\n", quot);\r
-\r
        if (baud < 2400){\r
                fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_1;\r
        }\r
@@ -1296,19 +1295,6 @@ serial_rk_set_termios(struct uart_port *port, struct ktermios *termios,
                //added by hhb@rock-chips.com\r
                if(up->prk29_uart_dma_t->use_timer == 1){\r
                        fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00 | UART_FCR_T_TRIG_01;\r
-                       //set time out value according to the baud rate\r
-/*\r
-                       up->prk29_uart_dma_t->rx_timeout = bits*1000*1024/baud + 1;\r
-\r
-                       if(up->prk29_uart_dma_t->rx_timeout < 10){\r
-                               up->prk29_uart_dma_t->rx_timeout = 10;\r
-                       }\r
-                       if(up->prk29_uart_dma_t->rx_timeout > 25){\r
-                               up->prk29_uart_dma_t->rx_timeout = 25;\r
-                       }\r
-                       printk("%s:time:%d, bits:%d, baud:%d\n", __func__, up->prk29_uart_dma_t->rx_timeout, bits, baud);\r
-                       up->prk29_uart_dma_t->rx_timeout = 7;\r
-*/\r
                }\r
                else{\r
                        fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 | UART_FCR_T_TRIG_01;\r
@@ -1326,10 +1312,8 @@ serial_rk_set_termios(struct uart_port *port, struct ktermios *termios,
        up->mcr &= ~UART_MCR_AFE;\r
        if (termios->c_cflag & CRTSCTS){\r
                up->mcr |= UART_MCR_AFE;\r
-               //dev_info(up->port.dev, "*****UART_MCR_AFE*******\n");\r
        }\r
 \r
-\r
        /*\r
         * Ok, we're now changing the port state.  Do it with\r
         * interrupts disabled.\r
@@ -1766,17 +1750,50 @@ static int serial_rk_suspend(struct platform_device *dev, pm_message_t state)
 {\r
        struct uart_rk_port *up = platform_get_drvdata(dev);\r
 \r
-       if (up)\r
+       if (up){\r
                uart_suspend_port(&serial_rk_reg, &up->port);\r
+               if(up->port.line == BLUETOOTH_UART){\r
+                       rk29_mux_api_set(GPIO2A7_UART2RTSN_NAME, GPIO2L_GPIO2A7);\r
+                       gpio_request(RK29_PIN2_PA7, "uart_rts");\r
+                       gpio_direction_output(RK29_PIN2_PA7, 0);\r
+                       gpio_set_value(RK29_PIN2_PA7, GPIO_HIGH);\r
+               }else{\r
+                       serial_out(up, UART_MCR, 0);\r
+               }\r
+       }\r
        return 0;\r
 }\r
 \r
+\r
+static struct timer_list uart2_tl;\r
+static bool timer_init = false;\r
+static void timer_resume_uart2(unsigned long arg)\r
+{\r
+       DBG("%s---\n", __FUNCTION__);\r
+       gpio_set_value(RK29_PIN2_PA7, GPIO_LOW);\r
+       rk29_mux_api_set(GPIO2A7_UART2RTSN_NAME, GPIO2L_UART2_RTS_N);\r
+}\r
+\r
 static int serial_rk_resume(struct platform_device *dev)\r
 {\r
        struct uart_rk_port *up = platform_get_drvdata(dev);\r
 \r
-       if (up)\r
+       if (up){\r
                uart_resume_port(&serial_rk_reg, &up->port);\r
+\r
+               if(up->port.line == BLUETOOTH_UART){\r
+                       if(!timer_init){\r
+                               init_timer(&uart2_tl);\r
+                               uart2_tl.expires = jiffies + msecs_to_jiffies(30);\r
+                               uart2_tl.function = timer_resume_uart2;\r
+                               add_timer(&uart2_tl);\r
+                               timer_init = true;\r
+                       }\r
+                       else{\r
+                               mod_timer(&uart2_tl,jiffies + msecs_to_jiffies(30));\r
+                       }\r
+               }\r
+       }\r
        return 0;\r
 }\r
 \r