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Code

remove proc and char dev from ifxmips gpio driver

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11406 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
blogic 2008-06-08 08:21:20 +00:00
parent 422bfb0600
commit cf5e9a49e8
1 changed files with 4 additions and 191 deletions
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195
target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c
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@ -43,7 +43,7 @@
#define MAX_PORTS 2 #define MAX_PORTS 2
#define PINS_PER_PORT 16 #define PINS_PER_PORT 16
#define DRVNAME "ifxmips_gpio" #define DRVNAME "ifxmips_gpio"
static unsigned int ifxmips_gpio_major = 0; static unsigned int ifxmips_gpio_major = 0;
@ -51,7 +51,7 @@ static unsigned int ifxmips_gpio_major = 0;
#define IFXMIPS_RST_PIN 15 #define IFXMIPS_RST_PIN 15
#define IFXMIPS_RST_PORT 1 #define IFXMIPS_RST_PORT 1
static struct timer_list rst_button_timer; static struct timer_list rst_button_timer;
extern struct sock *uevent_sock; extern struct sock *uevent_sock;
extern u64 uevent_next_seqnum(void); extern u64 uevent_next_seqnum(void);
@ -315,10 +315,10 @@ done:
static void reset_button_poll(unsigned long unused) static void reset_button_poll(unsigned long unused)
{ {
struct event_t *event; struct event_t *event;
rst_button_timer.expires = jiffies + HZ; rst_button_timer.expires = jiffies + HZ;
add_timer(&rst_button_timer); add_timer(&rst_button_timer);
if (pressed != ifxmips_port_get_input(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN)) if (pressed != ifxmips_port_get_input(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN))
{ {
if(pressed) if(pressed)
@ -341,181 +341,6 @@ static void reset_button_poll(unsigned long unused)
} }
#endif #endif
long ifxmips_port_read_procmem_helper(char* tag, u32* in_reg, char *buf)
{
u32 reg, bit = 0;
unsigned int len, t;
len = sprintf(buf, "\n%s: ", tag);
reg = ifxmips_r32(in_reg);
bit = 0x80000000;
for (t = 0; t < 32; t++) {
if ((reg & bit) > 0)
len = len + sprintf(buf + len, "X");
else
len = len + sprintf(buf + len, " ");
bit = bit >> 1;
}
return len;
}
int
ifxmips_port_read_procmem (char *buf, char **start, off_t offset, int count,
int *eof, void *data)
{
long len = sprintf (buf, "\nIFXMips Port Settings\n");
len += sprintf (buf + len,
" 3 2 1 0\n");
len += sprintf (buf + len,
" 10987654321098765432109876543210\n");
len += sprintf (buf + len,
"----------------------------------------\n");
len += ifxmips_port_read_procmem_helper("P0-OUT", IFXMIPS_GPIO_P0_OUT, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-OUT", IFXMIPS_GPIO_P1_OUT, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-IN ", IFXMIPS_GPIO_P0_IN, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-IN ", IFXMIPS_GPIO_P1_IN, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-DIR", IFXMIPS_GPIO_P0_DIR, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-DIR", IFXMIPS_GPIO_P1_DIR, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-STO ", IFXMIPS_GPIO_P0_STOFF, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-STO ", IFXMIPS_GPIO_P1_STOFF, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-PUDE", IFXMIPS_GPIO_P0_PUDEN, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-PUDE", IFXMIPS_GPIO_P1_PUDEN, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-OD ", IFXMIPS_GPIO_P0_OD, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-OD ", IFXMIPS_GPIO_P1_OD, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-PUDS", IFXMIPS_GPIO_P0_PUDSEL, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-PUDS", IFXMIPS_GPIO_P1_PUDSEL, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-ALT0", IFXMIPS_GPIO_P0_ALTSEL0, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-ALT0", IFXMIPS_GPIO_P1_ALTSEL0, &buf[len]);
len += ifxmips_port_read_procmem_helper("P0-ALT1", IFXMIPS_GPIO_P0_ALTSEL1, &buf[len]);
len += ifxmips_port_read_procmem_helper("P1-ALT1", IFXMIPS_GPIO_P1_ALTSEL1, &buf[len]);
len = len + sprintf (buf + len, "\n\n");
*eof = 1;
return len;
}
static int
ifxmips_port_open (struct inode *inode, struct file *filep)
{
return 0;
}
static int
ifxmips_port_release (struct inode *inode, struct file *filelp)
{
return 0;
}
static int
ifxmips_port_ioctl (struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
int ret = 0;
volatile struct ifxmips_port_ioctl_parm parm;
if (_IOC_TYPE (cmd) != IFXMIPS_PORT_IOC_MAGIC)
return -EINVAL;
if (_IOC_DIR (cmd) & _IOC_WRITE) {
if (!access_ok
(VERIFY_READ, arg,
sizeof (struct ifxmips_port_ioctl_parm)))
return -EFAULT;
ret = copy_from_user ((void *) &parm, (void *) arg,
sizeof (struct ifxmips_port_ioctl_parm));
}
if (_IOC_DIR (cmd) & _IOC_READ) {
if (!access_ok
(VERIFY_WRITE, arg,
sizeof (struct ifxmips_port_ioctl_parm)))
return -EFAULT;
}
if (down_trylock (&port_sem) != 0)
return -EBUSY;
switch (cmd) {
case IFXMIPS_PORT_IOCOD:
if (parm.value == 0x00)
ifxmips_port_clear_open_drain(parm.port, parm.pin);
else
ifxmips_port_set_open_drain(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCPUDSEL:
if (parm.value == 0x00)
ifxmips_port_clear_pudsel(parm.port, parm.pin);
else
ifxmips_port_set_pudsel(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCPUDEN:
if (parm.value == 0x00)
ifxmips_port_clear_puden(parm.port, parm.pin);
else
ifxmips_port_set_puden(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCSTOFF:
if (parm.value == 0x00)
ifxmips_port_clear_stoff(parm.port, parm.pin);
else
ifxmips_port_set_stoff(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCDIR:
if (parm.value == 0x00)
ifxmips_port_set_dir_in(parm.port, parm.pin);
else
ifxmips_port_set_dir_out(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCOUTPUT:
if (parm.value == 0x00)
ifxmips_port_clear_output(parm.port, parm.pin);
else
ifxmips_port_set_output(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCALTSEL0:
if (parm.value == 0x00)
ifxmips_port_clear_altsel0(parm.port, parm.pin);
else
ifxmips_port_set_altsel0(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCALTSEL1:
if (parm.value == 0x00)
ifxmips_port_clear_altsel1(parm.port, parm.pin);
else
ifxmips_port_set_altsel1(parm.port, parm.pin);
break;
case IFXMIPS_PORT_IOCINPUT:
parm.value = ifxmips_port_get_input(parm.port, parm.pin);
copy_to_user((void*)arg, (void*)&parm,
sizeof(struct ifxmips_port_ioctl_parm));
break;
default:
ret = -EINVAL;
}
up (&port_sem);
return ret;
}
static struct file_operations port_fops = {
.open = ifxmips_port_open,
.release = ifxmips_port_release,
.ioctl = ifxmips_port_ioctl
};
static int static int
ifxmips_gpio_probe (struct platform_device *dev) ifxmips_gpio_probe (struct platform_device *dev)
{ {
@ -523,16 +348,6 @@ ifxmips_gpio_probe (struct platform_device *dev)
sema_init (&port_sem, 1); sema_init (&port_sem, 1);
ifxmips_gpio_major = register_chrdev(0, DRVNAME, &port_fops);
if (!ifxmips_gpio_major)
{
printk(KERN_INFO DRVNAME ": Error! Could not register port device. #%d\n", ifxmips_gpio_major);
retval = -EINVAL;
goto out;
}
create_proc_read_entry(DRVNAME, 0, NULL, ifxmips_port_read_procmem, NULL);
#ifdef CONFIG_IFXMIPS_GPIO_RST_BTN #ifdef CONFIG_IFXMIPS_GPIO_RST_BTN
ifxmips_port_set_open_drain(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN); ifxmips_port_set_open_drain(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN);
ifxmips_port_clear_altsel0(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN); ifxmips_port_clear_altsel0(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN);
@ -549,7 +364,6 @@ ifxmips_gpio_probe (struct platform_device *dev)
printk(KERN_INFO DRVNAME ": device successfully initialized #%d.\n", ifxmips_gpio_major); printk(KERN_INFO DRVNAME ": device successfully initialized #%d.\n", ifxmips_gpio_major);
out:
return retval; return retval;
} }
@ -560,7 +374,6 @@ ifxmips_gpio_remove (struct platform_device *pdev)
del_timer_sync(&rst_button_timer); del_timer_sync(&rst_button_timer);
#endif #endif
unregister_chrdev(ifxmips_gpio_major, DRVNAME); unregister_chrdev(ifxmips_gpio_major, DRVNAME);
remove_proc_entry(DRVNAME, NULL);
return 0; return 0;
} }