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authorMagnus Damm <damm@igel.co.jp>2009-01-21 15:14:06 +0000
committerPaul Mundt <lethal@linux-sh.org>2009-05-08 23:01:12 +0900
commitdc8e6f5bfcd6a307a8196d3e41fd9798be5a1c76 (patch)
tree4dd52f5208c652a99324755baf8e8ea2b8710a50 /drivers
parent9080b72819650c3a757d173a19bc930d603b79d6 (diff)
downloadop-kernel-dev-dc8e6f5bfcd6a307a8196d3e41fd9798be5a1c76.zip
op-kernel-dev-dc8e6f5bfcd6a307a8196d3e41fd9798be5a1c76.tar.gz
sh-sci: rework serial console support
Rework sh-sci serial console code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/serial/sh-sci.c47
1 files changed, 23 insertions, 24 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 5f37f7d..d2cd1a4 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -91,10 +91,6 @@ struct sh_sci_priv {
#endif
};
-#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE
-static struct sci_port *serial_console_port;
-#endif
-
/* Function prototypes */
static void sci_stop_tx(struct uart_port *port);
@@ -1083,6 +1079,18 @@ static void __init sci_init_ports(void)
}
#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE
+static struct tty_driver *serial_console_device(struct console *co, int *index)
+{
+ struct uart_driver *p = &sci_uart_driver;
+ *index = co->index;
+ return p->tty_driver;
+}
+
+static void serial_console_putchar(struct uart_port *port, int ch)
+{
+ sci_poll_put_char(port, ch);
+}
+
/*
* Print a string to the serial port trying not to disturb
* any possible real use of the port...
@@ -1090,16 +1098,10 @@ static void __init sci_init_ports(void)
static void serial_console_write(struct console *co, const char *s,
unsigned count)
{
- struct uart_port *port = &serial_console_port->port;
+ struct uart_port *port = co->data;
unsigned short bits;
- int i;
- for (i = 0; i < count; i++) {
- if (*s == 10)
- sci_poll_put_char(port, '\r');
-
- sci_poll_put_char(port, *s++);
- }
+ uart_console_write(co->data, s, count, serial_console_putchar);
/* wait until fifo is empty and last bit has been transmitted */
bits = SCxSR_TDxE(port) | SCxSR_TEND(port);
@@ -1109,6 +1111,7 @@ static void serial_console_write(struct console *co, const char *s,
static int __init serial_console_setup(struct console *co, char *options)
{
+ struct sci_port *sci_port;
struct uart_port *port;
int baud = 115200;
int bits = 8;
@@ -1124,8 +1127,9 @@ static int __init serial_console_setup(struct console *co, char *options)
if (co->index >= SCI_NPORTS)
co->index = 0;
- serial_console_port = &sci_ports[co->index];
- port = &serial_console_port->port;
+ sci_port = &sci_ports[co->index];
+ port = &sci_port->port;
+ co->data = port;
/*
* Also need to check port->type, we don't actually have any
@@ -1135,21 +1139,17 @@ static int __init serial_console_setup(struct console *co, char *options)
*/
if (!port->type)
return -ENODEV;
- if (!port->membase || !port->mapbase)
- return -ENODEV;
-
- port->type = serial_console_port->type;
#ifdef CONFIG_HAVE_CLK
- if (!serial_console_port->clk)
- serial_console_port->clk = clk_get(NULL, "module_clk");
+ if (!sci_port->clk)
+ sci_port->clk = clk_get(NULL, "module_clk");
#endif
if (port->flags & UPF_IOREMAP)
sci_config_port(port, 0);
- if (serial_console_port->enable)
- serial_console_port->enable(port);
+ if (sci_port->enable)
+ sci_port->enable(port);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
@@ -1165,12 +1165,11 @@ static int __init serial_console_setup(struct console *co, char *options)
static struct console serial_console = {
.name = "ttySC",
- .device = uart_console_device,
+ .device = serial_console_device,
.write = serial_console_write,
.setup = serial_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
- .data = &sci_uart_driver,
};
static int __init sci_console_init(void)
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