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path: root/target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c
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Diffstat (limited to 'target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c')
-rw-r--r--target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c136
1 files changed, 54 insertions, 82 deletions
diff --git a/target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c b/target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c
index bd34b9117..2100ebb4c 100644
--- a/target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c
+++ b/target/linux/ifxmips/files/arch/mips/ifxmips/gpio.c
@@ -51,7 +51,7 @@ static struct timer_list rst_button_timer;
extern struct sock *uevent_sock;
extern u64 uevent_next_seqnum(void);
static unsigned long seen;
-static int pressed = 0;
+static int pressed;
struct event_t {
struct work_struct wq;
@@ -61,26 +61,24 @@ struct event_t {
#endif
#define IFXMIPS_GPIO_SANITY {if (port > MAX_PORTS || pin > PINS_PER_PORT) return -EINVAL; }
-int
-ifxmips_port_reserve_pin(unsigned int port, unsigned int pin)
+
+int ifxmips_port_reserve_pin(unsigned int port, unsigned int pin)
{
IFXMIPS_GPIO_SANITY;
- printk("%s : call to obseleted function\n", __func__);
+ printk(KERN_INFO "%s : call to obseleted function\n", __func__);
return 0;
}
EXPORT_SYMBOL(ifxmips_port_reserve_pin);
-int
-ifxmips_port_free_pin(unsigned int port, unsigned int pin)
+int ifxmips_port_free_pin(unsigned int port, unsigned int pin)
{
IFXMIPS_GPIO_SANITY;
- printk("%s : call to obseleted function\n", __func__);
+ printk(KERN_INFO "%s : call to obseleted function\n", __func__);
return 0;
}
EXPORT_SYMBOL(ifxmips_port_free_pin);
-int
-ifxmips_port_set_open_drain(unsigned int port, unsigned int pin)
+int ifxmips_port_set_open_drain(unsigned int port, unsigned int pin)
{
IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OD + (port * 0xC)) | (1 << pin),
@@ -89,8 +87,7 @@ ifxmips_port_set_open_drain(unsigned int port, unsigned int pin)
}
EXPORT_SYMBOL(ifxmips_port_set_open_drain);
-int
-ifxmips_port_clear_open_drain(unsigned int port, unsigned int pin)
+int ifxmips_port_clear_open_drain(unsigned int port, unsigned int pin)
{
IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OD + (port * 0xC)) & ~(1 << pin),
@@ -99,110 +96,99 @@ ifxmips_port_clear_open_drain(unsigned int port, unsigned int pin)
}
EXPORT_SYMBOL(ifxmips_port_clear_open_drain);
-int
-ifxmips_port_set_pudsel(unsigned int port, unsigned int pin)
+int ifxmips_port_set_pudsel(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC)) | (1 << pin),
IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_pudsel);
-int
-ifxmips_port_clear_pudsel (unsigned int port, unsigned int pin)
+int ifxmips_port_clear_pudsel(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC)) & ~(1 << pin),
IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_clear_pudsel);
-int
-ifxmips_port_set_puden(unsigned int port, unsigned int pin)
+int ifxmips_port_set_puden(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDEN + (port * 0xC)) | (1 << pin),
IFXMIPS_GPIO_P0_PUDEN + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_puden);
-int
-ifxmips_port_clear_puden(unsigned int port, unsigned int pin)
+int ifxmips_port_clear_puden(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDEN + (port * 0xC)) & ~(1 << pin),
IFXMIPS_GPIO_P0_PUDEN + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_clear_puden);
-int
-ifxmips_port_set_stoff(unsigned int port, unsigned int pin)
+int ifxmips_port_set_stoff(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_STOFF + (port * 0xC)) | (1 << pin),
IFXMIPS_GPIO_P0_STOFF + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_stoff);
-int
-ifxmips_port_clear_stoff(unsigned int port, unsigned int pin)
+int ifxmips_port_clear_stoff(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_STOFF + (port * 0xC)) & ~(1 << pin),
IFXMIPS_GPIO_P0_STOFF + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_clear_stoff);
-int
-ifxmips_port_set_dir_out(unsigned int port, unsigned int pin)
+int ifxmips_port_set_dir_out(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_DIR + (port * 0xC)) | (1 << pin),
IFXMIPS_GPIO_P0_DIR + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_dir_out);
-int
-ifxmips_port_set_dir_in(unsigned int port, unsigned int pin)
+int ifxmips_port_set_dir_in(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_DIR + (port * 0xC)) & ~(1 << pin),
IFXMIPS_GPIO_P0_DIR + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_dir_in);
-int
-ifxmips_port_set_output(unsigned int port, unsigned int pin)
+int ifxmips_port_set_output(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OUT + (port * 0xC)) | (1 << pin),
IFXMIPS_GPIO_P0_OUT + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_output);
-int
-ifxmips_port_clear_output(unsigned int port, unsigned int pin)
+int ifxmips_port_clear_output(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OUT + (port * 0xC)) & ~(1 << pin),
IFXMIPS_GPIO_P0_OUT + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_clear_output);
-int
-ifxmips_port_get_input(unsigned int port, unsigned int pin)
+int ifxmips_port_get_input(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
if (ifxmips_r32(IFXMIPS_GPIO_P0_IN + (port * 0xC)) & (1 << pin))
return 0;
else
@@ -210,40 +196,36 @@ ifxmips_port_get_input(unsigned int port, unsigned int pin)
}
EXPORT_SYMBOL(ifxmips_port_get_input);
-int
-ifxmips_port_set_altsel0(unsigned int port, unsigned int pin)
+int ifxmips_port_set_altsel0(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC)) | (1 << pin),
IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_altsel0);
-int
-ifxmips_port_clear_altsel0(unsigned int port, unsigned int pin)
+int ifxmips_port_clear_altsel0(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC)) & ~(1 << pin),
IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_clear_altsel0);
-int
-ifxmips_port_set_altsel1(unsigned int port, unsigned int pin)
+int ifxmips_port_set_altsel1(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC)) | (1 << pin),
IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC));
return 0;
}
EXPORT_SYMBOL(ifxmips_port_set_altsel1);
-int
-ifxmips_port_clear_altsel1(unsigned int port, unsigned int pin)
+int ifxmips_port_clear_altsel1(unsigned int port, unsigned int pin)
{
- IFXMIPS_GPIO_SANITY;
+ IFXMIPS_GPIO_SANITY;
ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC)) & ~(1 << pin),
IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC));
return 0;
@@ -251,16 +233,14 @@ ifxmips_port_clear_altsel1(unsigned int port, unsigned int pin)
EXPORT_SYMBOL(ifxmips_port_clear_altsel1);
#ifdef CONFIG_IFXMIPS_GPIO_RST_BTN
-static inline void
-add_msg(struct sk_buff *skb, char *msg)
+static inline void add_msg(struct sk_buff *skb, char *msg)
{
char *scratch;
scratch = skb_put(skb, strlen(msg) + 1);
sprintf(scratch, msg);
}
-static void
-hotplug_button(struct work_struct *wq)
+static void hotplug_button(struct work_struct *wq)
{
struct sk_buff *skb;
struct event_t *event;
@@ -269,17 +249,17 @@ hotplug_button(struct work_struct *wq)
char buf[128];
event = container_of(wq, struct event_t, wq);
- if(!uevent_sock)
+ if (!uevent_sock)
goto done;
s = event->set ? "pressed" : "released";
len = strlen(s) + 2;
skb = alloc_skb(len + 2048, GFP_KERNEL);
- if(!skb)
+ if (!skb)
goto done;
scratch = skb_put(skb, len);
- sprintf(scratch, "%s@",s);
+ sprintf(scratch, "%s@", s);
add_msg(skb, "HOME=/");
add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin");
add_msg(skb, "SUBSYSTEM=button");
@@ -296,24 +276,21 @@ done:
kfree(event);
}
-static void
-reset_button_poll(unsigned long unused)
+static void reset_button_poll(unsigned long unused)
{
struct event_t *event;
rst_button_timer.expires = jiffies + (HZ / 4);
add_timer(&rst_button_timer);
- if (pressed != ifxmips_port_get_input(rst_port, rst_pin))
- {
- if(pressed)
+ if (pressed != ifxmips_port_get_input(rst_port, rst_pin)) {
+ if (pressed)
pressed = 0;
else
pressed = 1;
- event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
- if (!event)
- {
- printk("Could not alloc hotplug event\n");
+ event = kzalloc(sizeof(struct event_t), GFP_ATOMIC);
+ if (!event) {
+ printk(KERN_INFO "Could not alloc hotplug event\n");
return;
}
event->set = pressed;
@@ -325,8 +302,7 @@ reset_button_poll(unsigned long unused)
}
#endif
-static int
-ifxmips_gpio_probe(struct platform_device *dev)
+static int ifxmips_gpio_probe(struct platform_device *dev)
{
int retval = 0;
@@ -346,8 +322,7 @@ ifxmips_gpio_probe(struct platform_device *dev)
return retval;
}
-static int
-ifxmips_gpio_remove(struct platform_device *pdev)
+static int ifxmips_gpio_remove(struct platform_device *pdev)
{
#ifdef CONFIG_IFXMIPS_GPIO_RST_BTN
del_timer_sync(&rst_button_timer);
@@ -355,8 +330,7 @@ ifxmips_gpio_remove(struct platform_device *pdev)
return 0;
}
-static struct
-platform_driver ifxmips_gpio_driver = {
+static struct platform_driver ifxmips_gpio_driver = {
.probe = ifxmips_gpio_probe,
.remove = ifxmips_gpio_remove,
.driver = {
@@ -365,8 +339,7 @@ platform_driver ifxmips_gpio_driver = {
},
};
-int __init
-ifxmips_gpio_init(void)
+int __init ifxmips_gpio_init(void)
{
int ret = platform_driver_register(&ifxmips_gpio_driver);
if (ret)
@@ -374,8 +347,7 @@ ifxmips_gpio_init(void)
return ret;
}
-void __exit
-ifxmips_gpio_exit(void)
+void __exit ifxmips_gpio_exit(void)
{
platform_driver_unregister(&ifxmips_gpio_driver);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-25 20:08:59 +0000