diff options
Diffstat (limited to 'arch/sh/boards/landisk/landisk_pwb.c')
-rw-r--r-- | arch/sh/boards/landisk/landisk_pwb.c | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/arch/sh/boards/landisk/landisk_pwb.c b/arch/sh/boards/landisk/landisk_pwb.c deleted file mode 100644 index 47a63c6617e..00000000000 --- a/arch/sh/boards/landisk/landisk_pwb.c +++ /dev/null @@ -1,346 +0,0 @@ -/* - * arch/sh/boards/landisk/landisk_pwb.c -- driver for the Power control switch. - * - * This driver will also support the I-O DATA Device, Inc. LANDISK Board. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copylight (C) 2002 Atom Create Engineering Co., Ltd. - * - * LED control drive function added by kogiidena - */ -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/major.h> -#include <linux/poll.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/interrupt.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/landisk/iodata_landisk.h> - -#define SHUTDOWN_BTN_MINOR 1 /* Shutdown button device minor no. */ -#define LED_MINOR 21 /* LED minor no. */ -#define BTN_MINOR 22 /* BUTTON minor no. */ -#define GIO_MINOR 40 /* GIO minor no. */ - -static int openCnt; -static int openCntLED; -static int openCntGio; -static int openCntBtn; -static int landisk_btn; -static int landisk_btnctrlpid; -/* - * Functions prototypes - */ - -static int gio_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg); - -static int swdrv_open(struct inode *inode, struct file *filp) -{ - int minor; - - minor = MINOR(inode->i_rdev); - filp->private_data = (void *)minor; - - if (minor == SHUTDOWN_BTN_MINOR) { - if (openCnt > 0) { - return -EALREADY; - } else { - openCnt++; - return 0; - } - } else if (minor == LED_MINOR) { - if (openCntLED > 0) { - return -EALREADY; - } else { - openCntLED++; - return 0; - } - } else if (minor == BTN_MINOR) { - if (openCntBtn > 0) { - return -EALREADY; - } else { - openCntBtn++; - return 0; - } - } else if (minor == GIO_MINOR) { - if (openCntGio > 0) { - return -EALREADY; - } else { - openCntGio++; - return 0; - } - } - return -ENOENT; - -} - -static int swdrv_close(struct inode *inode, struct file *filp) -{ - int minor; - - minor = MINOR(inode->i_rdev); - if (minor == SHUTDOWN_BTN_MINOR) { - openCnt--; - } else if (minor == LED_MINOR) { - openCntLED--; - } else if (minor == BTN_MINOR) { - openCntBtn--; - } else if (minor == GIO_MINOR) { - openCntGio--; - } - return 0; -} - -static int swdrv_read(struct file *filp, char *buff, size_t count, - loff_t * ppos) -{ - int minor; - minor = (int)(filp->private_data); - - if (!access_ok(VERIFY_WRITE, (void *)buff, count)) - return -EFAULT; - - if (minor == SHUTDOWN_BTN_MINOR) { - if (landisk_btn & 0x10) { - put_user(1, buff); - return 1; - } else { - return 0; - } - } - return 0; -} - -static int swdrv_write(struct file *filp, const char *buff, size_t count, - loff_t * ppos) -{ - int minor; - minor = (int)(filp->private_data); - - if (minor == SHUTDOWN_BTN_MINOR) { - return count; - } - return count; -} - -static irqreturn_t sw_interrupt(int irq, void *dev_id) -{ - landisk_btn = (0x0ff & (~ctrl_inb(PA_STATUS))); - disable_irq(IRQ_BUTTON); - disable_irq(IRQ_POWER); - ctrl_outb(0x00, PA_PWRINT_CLR); - - if (landisk_btnctrlpid != 0) { - kill_proc(landisk_btnctrlpid, SIGUSR1, 1); - landisk_btnctrlpid = 0; - } - - return IRQ_HANDLED; -} - -static const struct file_operations swdrv_fops = { - .read = swdrv_read, /* read */ - .write = swdrv_write, /* write */ - .open = swdrv_open, /* open */ - .release = swdrv_close, /* release */ - .ioctl = gio_ioctl, /* ioctl */ - -}; - -static char banner[] __initdata = - KERN_INFO "LANDISK and USL-5P Button, LED and GIO driver initialized\n"; - -int __init swdrv_init(void) -{ - int error; - - printk("%s", banner); - - openCnt = 0; - openCntLED = 0; - openCntBtn = 0; - openCntGio = 0; - landisk_btn = 0; - landisk_btnctrlpid = 0; - - if ((error = register_chrdev(SHUTDOWN_BTN_MAJOR, "swdrv", &swdrv_fops))) { - printk(KERN_ERR - "Button, LED and GIO driver:Couldn't register driver, error=%d\n", - error); - return 1; - } - - if (request_irq(IRQ_POWER, sw_interrupt, 0, "SHUTDOWNSWITCH", NULL)) { - printk(KERN_ERR "Unable to get IRQ 11.\n"); - return 1; - } - if (request_irq(IRQ_BUTTON, sw_interrupt, 0, "USL-5P BUTTON", NULL)) { - printk(KERN_ERR "Unable to get IRQ 12.\n"); - return 1; - } - ctrl_outb(0x00, PA_PWRINT_CLR); - - return 0; -} - -module_init(swdrv_init); - -/* - * gio driver - * - */ - -#include <asm/landisk/gio.h> - -static int gio_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - int minor; - unsigned int data, mask; - static unsigned int addr = 0; - - minor = (int)(filp->private_data); - - /* access control */ - if (minor == GIO_MINOR) { - ; - } else if (minor == LED_MINOR) { - if (((cmd & 0x0ff) >= 9) && ((cmd & 0x0ff) < 20)) { - ; - } else { - return -EINVAL; - } - } else if (minor == BTN_MINOR) { - if (((cmd & 0x0ff) >= 20) && ((cmd & 0x0ff) < 30)) { - ; - } else { - return -EINVAL; - } - } else { - return -EINVAL; - } - - if (cmd & 0x01) { /* write */ - if (copy_from_user(&data, (int *)arg, sizeof(int))) { - return -EFAULT; - } - } - - switch (cmd) { - case GIODRV_IOCSGIOSETADDR: /* addres set */ - addr = data; - break; - - case GIODRV_IOCSGIODATA1: /* write byte */ - ctrl_outb((unsigned char)(0x0ff & data), addr); - break; - - case GIODRV_IOCSGIODATA2: /* write word */ - if (addr & 0x01) { - return -EFAULT; - } - ctrl_outw((unsigned short int)(0x0ffff & data), addr); - break; - - case GIODRV_IOCSGIODATA4: /* write long */ - if (addr & 0x03) { - return -EFAULT; - } - ctrl_outl(data, addr); - break; - - case GIODRV_IOCGGIODATA1: /* read byte */ - data = ctrl_inb(addr); - break; - - case GIODRV_IOCGGIODATA2: /* read word */ - if (addr & 0x01) { - return -EFAULT; - } - data = ctrl_inw(addr); - break; - - case GIODRV_IOCGGIODATA4: /* read long */ - if (addr & 0x03) { - return -EFAULT; - } - data = ctrl_inl(addr); - break; - case GIODRV_IOCSGIO_LED: /* write */ - mask = ((data & 0x00ffffff) << 8) - | ((data & 0x0000ffff) << 16) - | ((data & 0x000000ff) << 24); - landisk_ledparam = data & (~mask); - if (landisk_arch == 0) { /* arch == landisk */ - landisk_ledparam &= 0x03030303; - mask = (~(landisk_ledparam >> 22)) & 0x000c; - landisk_ledparam |= mask; - } else { /* arch == usl-5p */ - mask = (landisk_ledparam >> 24) & 0x0001; - landisk_ledparam |= mask; - landisk_ledparam &= 0x007f7f7f; - } - landisk_ledparam |= 0x80; - break; - case GIODRV_IOCGGIO_LED: /* read */ - data = landisk_ledparam; - if (landisk_arch == 0) { /* arch == landisk */ - data &= 0x03030303; - } else { /* arch == usl-5p */ - ; - } - data &= (~0x080); - break; - case GIODRV_IOCSGIO_BUZZER: /* write */ - landisk_buzzerparam = data; - landisk_ledparam |= 0x80; - break; - case GIODRV_IOCGGIO_LANDISK: /* read */ - data = landisk_arch & 0x01; - break; - case GIODRV_IOCGGIO_BTN: /* read */ - data = (0x0ff & ctrl_inb(PA_PWRINT_CLR)); - data <<= 8; - data |= (0x0ff & ctrl_inb(PA_IMASK)); - data <<= 8; - data |= (0x0ff & landisk_btn); - data <<= 8; - data |= (0x0ff & (~ctrl_inb(PA_STATUS))); - break; - case GIODRV_IOCSGIO_BTNPID: /* write */ - landisk_btnctrlpid = data; - landisk_btn = 0; - if (irq_desc[IRQ_BUTTON].depth) { - enable_irq(IRQ_BUTTON); - } - if (irq_desc[IRQ_POWER].depth) { - enable_irq(IRQ_POWER); - } - break; - case GIODRV_IOCGGIO_BTNPID: /* read */ - data = landisk_btnctrlpid; - break; - default: - return -EFAULT; - break; - } - - if ((cmd & 0x01) == 0) { /* read */ - if (copy_to_user((int *)arg, &data, sizeof(int))) { - return -EFAULT; - } - } - return 0; -} |