remove proc and char dev from ifxmips gpio driver
authorJohn Crispin <john@openwrt.org>
Sun, 8 Jun 2008 08:21:20 +0000 (08:21 +0000)
committerJohn Crispin <john@openwrt.org>
Sun, 8 Jun 2008 08:21:20 +0000 (08:21 +0000)
SVN-Revision: 11406

target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c

index c1eefa5..8beb0b8 100644 (file)
@@ -43,7 +43,7 @@
 #define MAX_PORTS                      2
 #define PINS_PER_PORT          16
 
-#define DRVNAME                                "ifxmips_gpio"  
+#define DRVNAME                                "ifxmips_gpio"
 
 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_PORT 1
 
-static struct timer_list rst_button_timer; 
+static struct timer_list rst_button_timer;
 
 extern struct sock *uevent_sock;
 extern u64 uevent_next_seqnum(void);
@@ -315,10 +315,10 @@ done:
 static void reset_button_poll(unsigned long unused)
 {
        struct event_t *event;
-       
+
        rst_button_timer.expires = jiffies + HZ;
        add_timer(&rst_button_timer);
-       
+
        if (pressed != ifxmips_port_get_input(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN))
        {
                if(pressed)
@@ -341,181 +341,6 @@ static void reset_button_poll(unsigned long unused)
 }
 #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
 ifxmips_gpio_probe (struct platform_device *dev)
 {
@@ -523,16 +348,6 @@ ifxmips_gpio_probe (struct platform_device *dev)
 
        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
        ifxmips_port_set_open_drain(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);
 
-out:
        return retval;
 }
 
@@ -560,7 +374,6 @@ ifxmips_gpio_remove (struct platform_device *pdev)
        del_timer_sync(&rst_button_timer);
 #endif
        unregister_chrdev(ifxmips_gpio_major, DRVNAME);
-       remove_proc_entry(DRVNAME, NULL);
 
        return 0;
 }