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path: root/drivers/serial/omap-serial.c
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Diffstat (limited to 'drivers/serial/omap-serial.c')
-rw-r--r--drivers/serial/omap-serial.c78
1 files changed, 52 insertions, 26 deletions
diff --git a/drivers/serial/omap-serial.c b/drivers/serial/omap-serial.c
index 14365f72b664..7f2f01058789 100644
--- a/drivers/serial/omap-serial.c
+++ b/drivers/serial/omap-serial.c
@@ -570,7 +570,7 @@ serial_omap_configure_xonxoff
unsigned char efr = 0;
up->lcr = serial_in(up, UART_LCR);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
up->efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, up->efr & ~UART_EFR_ECB);
@@ -598,7 +598,7 @@ serial_omap_configure_xonxoff
efr |= OMAP_UART_SW_RX;
serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
- serial_out(up, UART_LCR, UART_LCR_DLAB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
up->mcr = serial_in(up, UART_MCR);
@@ -612,14 +612,14 @@ serial_omap_configure_xonxoff
up->mcr |= UART_MCR_XONANY;
serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_TI752_TCR, OMAP_UART_TCR_TRIG);
/* Enable special char function UARTi.EFR_REG[5] and
* load the new software flow control mode IXON or IXOFF
* and restore the UARTi.EFR_REG[4] ENHANCED_EN value.
*/
serial_out(up, UART_EFR, efr | UART_EFR_SCD);
- serial_out(up, UART_LCR, UART_LCR_DLAB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
serial_out(up, UART_MCR, up->mcr & ~UART_MCR_TCRTLR);
serial_out(up, UART_LCR, up->lcr);
@@ -724,22 +724,22 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
* baud clock is not running
* DLL_REG and DLH_REG set to 0.
*/
- serial_out(up, UART_LCR, UART_LCR_DLAB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
serial_out(up, UART_DLL, 0);
serial_out(up, UART_DLM, 0);
serial_out(up, UART_LCR, 0);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
up->efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
- serial_out(up, UART_LCR, UART_LCR_DLAB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
up->mcr = serial_in(up, UART_MCR);
serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR);
/* FIFO ENABLE, DMA MODE */
serial_out(up, UART_FCR, up->fcr);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
if (up->use_dma) {
serial_out(up, UART_TI752_TLR, 0);
@@ -748,52 +748,52 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
}
serial_out(up, UART_EFR, up->efr);
- serial_out(up, UART_LCR, UART_LCR_DLAB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
serial_out(up, UART_MCR, up->mcr);
/* Protocol, Baud Rate, and Interrupt Settings */
- serial_out(up, UART_OMAP_MDR1, OMAP_MDR1_DISABLE);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
up->efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
serial_out(up, UART_LCR, 0);
serial_out(up, UART_IER, 0);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_DLL, quot & 0xff); /* LS of divisor */
serial_out(up, UART_DLM, quot >> 8); /* MS of divisor */
serial_out(up, UART_LCR, 0);
serial_out(up, UART_IER, up->ier);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_EFR, up->efr);
serial_out(up, UART_LCR, cval);
if (baud > 230400 && baud != 3000000)
- serial_out(up, UART_OMAP_MDR1, OMAP_MDR1_MODE13X);
+ serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_13X_MODE);
else
- serial_out(up, UART_OMAP_MDR1, OMAP_MDR1_MODE16X);
+ serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_16X_MODE);
/* Hardware Flow Control Configuration */
if (termios->c_cflag & CRTSCTS) {
efr |= (UART_EFR_CTS | UART_EFR_RTS);
- serial_out(up, UART_LCR, UART_LCR_DLAB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
up->mcr = serial_in(up, UART_MCR);
serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
up->efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
serial_out(up, UART_TI752_TCR, OMAP_UART_TCR_TRIG);
serial_out(up, UART_EFR, efr); /* Enable AUTORTS and AUTOCTS */
- serial_out(up, UART_LCR, UART_LCR_DLAB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
serial_out(up, UART_MCR, up->mcr | UART_MCR_RTS);
serial_out(up, UART_LCR, cval);
}
@@ -815,13 +815,13 @@ serial_omap_pm(struct uart_port *port, unsigned int state,
unsigned char efr;
dev_dbg(up->port.dev, "serial_omap_pm+%d\n", up->pdev->id);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, efr | UART_EFR_ECB);
serial_out(up, UART_LCR, 0);
serial_out(up, UART_IER, (state != 0) ? UART_IERX_SLEEP : 0);
- serial_out(up, UART_LCR, OMAP_UART_LCR_CONF_MDB);
+ serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_EFR, efr);
serial_out(up, UART_LCR, 0);
/* Enable module level wake up */
@@ -866,12 +866,6 @@ serial_omap_type(struct uart_port *port)
return up->name;
}
-#ifdef CONFIG_SERIAL_OMAP_CONSOLE
-
-static struct uart_omap_port *serial_omap_console_ports[4];
-
-static struct uart_driver serial_omap_reg;
-
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
static inline void wait_for_xmitr(struct uart_omap_port *up)
@@ -905,6 +899,34 @@ static inline void wait_for_xmitr(struct uart_omap_port *up)
}
}
+#ifdef CONFIG_CONSOLE_POLL
+
+static void serial_omap_poll_put_char(struct uart_port *port, unsigned char ch)
+{
+ struct uart_omap_port *up = (struct uart_omap_port *)port;
+ wait_for_xmitr(up);
+ serial_out(up, UART_TX, ch);
+}
+
+static int serial_omap_poll_get_char(struct uart_port *port)
+{
+ struct uart_omap_port *up = (struct uart_omap_port *)port;
+ unsigned int status = serial_in(up, UART_LSR);
+
+ if (!(status & UART_LSR_DR))
+ return NO_POLL_CHAR;
+
+ return serial_in(up, UART_RX);
+}
+
+#endif /* CONFIG_CONSOLE_POLL */
+
+#ifdef CONFIG_SERIAL_OMAP_CONSOLE
+
+static struct uart_omap_port *serial_omap_console_ports[4];
+
+static struct uart_driver serial_omap_reg;
+
static void serial_omap_console_putchar(struct uart_port *port, int ch)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
@@ -1022,6 +1044,10 @@ static struct uart_ops serial_omap_pops = {
.request_port = serial_omap_request_port,
.config_port = serial_omap_config_port,
.verify_port = serial_omap_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+ .poll_put_char = serial_omap_poll_put_char,
+ .poll_get_char = serial_omap_poll_get_char,
+#endif
};
static struct uart_driver serial_omap_reg = {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.