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authorMarek Vasut <marex@denx.de>2012-09-14 22:38:46 +0200
committerTom Rini <trini@ti.com>2012-10-15 11:53:57 -0700
commit39f614779f12065a84e5cc49be3db69079114f31 (patch)
tree65d9efada077ccb87f8dccf7870ef31dfecdd2e6 /drivers
parent0dd9b84908469332c655361682507ad05736b4dc (diff)
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serial: arm: Implement CONFIG_SERIAL_MULTI into pl01x serial driver
Implement support for CONFIG_SERIAL_MULTI into pl01x serial driver. This driver was so far only usable directly, but this patch also adds support for the multi method. This allows using more than one serial driver alongside the pl01x driver. Also, add a weak implementation of default_serial_console() returning this driver. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Tom Rini <trini@ti.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Mathieu J. Poirier <mathieu.poirier@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: John Rigby <john.rigby@linaro.org> Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/serial/serial_pl01x.c69
1 files changed, 62 insertions, 7 deletions
diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c
index d4c5137..beb0c98 100644
--- a/drivers/serial/serial_pl01x.c
+++ b/drivers/serial/serial_pl01x.c
@@ -30,6 +30,8 @@
#include <common.h>
#include <watchdog.h>
#include <asm/io.h>
+#include <serial.h>
+#include <linux/compiler.h>
#include "serial_pl01x.h"
/*
@@ -54,7 +56,7 @@ static struct pl01x_regs *pl01x_get_regs(int portnum)
#ifdef CONFIG_PL010_SERIAL
-int serial_init (void)
+static int pl01x_serial_init(void)
{
struct pl01x_regs *regs = pl01x_get_regs(CONSOLE_PORT);
unsigned int divisor;
@@ -104,7 +106,7 @@ int serial_init (void)
#ifdef CONFIG_PL011_SERIAL
-int serial_init (void)
+static int pl01x_serial_init(void)
{
struct pl01x_regs *regs = pl01x_get_regs(CONSOLE_PORT);
unsigned int temp;
@@ -169,7 +171,7 @@ int serial_init (void)
#endif /* CONFIG_PL011_SERIAL */
-void serial_putc (const char c)
+static void pl01x_serial_putc(const char c)
{
if (c == '\n')
pl01x_putc (CONSOLE_PORT, '\r');
@@ -177,24 +179,24 @@ void serial_putc (const char c)
pl01x_putc (CONSOLE_PORT, c);
}
-void serial_puts (const char *s)
+static void pl01x_serial_puts(const char *s)
{
while (*s) {
serial_putc (*s++);
}
}
-int serial_getc (void)
+static int pl01x_serial_getc(void)
{
return pl01x_getc (CONSOLE_PORT);
}
-int serial_tstc (void)
+static int pl01x_serial_tstc(void)
{
return pl01x_tstc (CONSOLE_PORT);
}
-void serial_setbrg (void)
+static void pl01x_serial_setbrg(void)
{
struct pl01x_regs *regs = pl01x_get_regs(CONSOLE_PORT);
@@ -250,3 +252,56 @@ static int pl01x_tstc (int portnum)
WATCHDOG_RESET();
return !(readl(&regs->fr) & UART_PL01x_FR_RXFE);
}
+
+#ifdef CONFIG_SERIAL_MULTI
+static struct serial_device pl01x_serial_drv = {
+ .name = "pl01x_serial",
+ .start = pl01x_serial_init,
+ .stop = NULL,
+ .setbrg = pl01x_serial_setbrg,
+ .putc = pl01x_serial_putc,
+ .puts = pl01x_serial_puts,
+ .getc = pl01x_serial_getc,
+ .tstc = pl01x_serial_tstc,
+};
+
+void pl01x_serial_initialize(void)
+{
+ serial_register(&pl01x_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+ return &pl01x_serial_drv;
+}
+#else
+int serial_init(void)
+{
+ return pl01x_serial_init();
+}
+
+void serial_setbrg(void)
+{
+ pl01x_serial_setbrg();
+}
+
+void serial_putc(const char c)
+{
+ pl01x_serial_putc(c);
+}
+
+void serial_puts(const char *s)
+{
+ pl01x_serial_puts(s);
+}
+
+int serial_getc(void)
+{
+ return pl01x_serial_getc();
+}
+
+int serial_tstc(void)
+{
+ return pl01x_serial_tstc();
+}
+#endif