drivers/char: remove old broken Cobalt LCD driver
authorYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Thu, 24 Jul 2008 04:31:41 +0000 (21:31 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 24 Jul 2008 17:47:40 +0000 (10:47 -0700)
Remove old broken Cobalt LCD driver.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/char/Kconfig
drivers/char/Makefile
drivers/char/lcd.c [deleted file]
drivers/char/lcd.h [deleted file]

index e0bbbfb6a36bd2b98092a641ef1b496f3a6b9e07..67b07576f8bfd982149e37b4b760fd1f0e3f241b 100644 (file)
@@ -857,13 +857,6 @@ config DS1302
 
 endif # RTC_LIB
 
-config COBALT_LCD
-       bool "Support for Cobalt LCD"
-       depends on MIPS_COBALT
-       help
-         This option enables support for the LCD display and buttons found
-         on Cobalt systems through a misc device.
-
 config DTLK
        tristate "Double Talk PC internal speech card support"
        depends on ISA
index dc5a327d72d5782ade03eece6a5f128ada9d2329..4b6e736cfa02992513ccb33ef7855d54b52f2177 100644 (file)
@@ -88,7 +88,6 @@ obj-$(CONFIG_TOSHIBA)         += toshiba.o
 obj-$(CONFIG_I8K)              += i8k.o
 obj-$(CONFIG_DS1620)           += ds1620.o
 obj-$(CONFIG_HW_RANDOM)                += hw_random/
-obj-$(CONFIG_COBALT_LCD)       += lcd.o
 obj-$(CONFIG_PPDEV)            += ppdev.o
 obj-$(CONFIG_NWBUTTON)         += nwbutton.o
 obj-$(CONFIG_NWFLASH)          += nwflash.o
diff --git a/drivers/char/lcd.c b/drivers/char/lcd.c
deleted file mode 100644 (file)
index 1c29b20..0000000
+++ /dev/null
@@ -1,516 +0,0 @@
-/*
- * LCD, LED and Button interface for Cobalt
- *
- * 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.
- *
- * Copyright (C) 1996, 1997 by Andrew Bose
- *
- * Linux kernel version history:
- *       March 2001: Ported from 2.0.34  by Liam Davies
- *
- */
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/mc146818rtc.h>
-#include <linux/netdevice.h>
-#include <linux/sched.h>
-#include <linux/smp_lock.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include "lcd.h"
-
-static int lcd_ioctl(struct inode *inode, struct file *file,
-                    unsigned int cmd, unsigned long arg);
-
-static unsigned int lcd_present = 1;
-
-/* used in arch/mips/cobalt/reset.c */
-int led_state = 0;
-
-#if defined(CONFIG_TULIP) && 0
-
-#define MAX_INTERFACES 8
-static linkcheck_func_t linkcheck_callbacks[MAX_INTERFACES];
-static void *linkcheck_cookies[MAX_INTERFACES];
-
-int lcd_register_linkcheck_func(int iface_num, void *func, void *cookie)
-{
-       if (iface_num < 0 ||
-           iface_num >= MAX_INTERFACES ||
-           linkcheck_callbacks[iface_num] != NULL)
-               return -1;
-       linkcheck_callbacks[iface_num] = (linkcheck_func_t) func;
-       linkcheck_cookies[iface_num] = cookie;
-       return 0;
-}
-#endif
-
-static int lcd_ioctl(struct inode *inode, struct file *file,
-                    unsigned int cmd, unsigned long arg)
-{
-       struct lcd_display button_display;
-       unsigned long address, a;
-
-       switch (cmd) {
-       case LCD_On:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x0F);
-               break;
-
-       case LCD_Off:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x08);
-               break;
-
-       case LCD_Reset:
-               udelay(150);
-               LCDWriteInst(0x3F);
-               udelay(150);
-               LCDWriteInst(0x3F);
-               udelay(150);
-               LCDWriteInst(0x3F);
-               udelay(150);
-               LCDWriteInst(0x3F);
-               udelay(150);
-               LCDWriteInst(0x01);
-               udelay(150);
-               LCDWriteInst(0x06);
-               break;
-
-       case LCD_Clear:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x01);
-               break;
-
-       case LCD_Cursor_Left:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x10);
-               break;
-
-       case LCD_Cursor_Right:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x14);
-               break;
-
-       case LCD_Cursor_Off:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x0C);
-               break;
-
-       case LCD_Cursor_On:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x0F);
-               break;
-
-       case LCD_Blink_Off:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x0E);
-               break;
-
-       case LCD_Get_Cursor_Pos:{
-                       struct lcd_display display;
-
-                       udelay(150);
-                       BusyCheck();
-                       display.cursor_address = (LCDReadInst);
-                       display.cursor_address =
-                           (display.cursor_address & 0x07F);
-                       if (copy_to_user
-                           ((struct lcd_display *) arg, &display,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-
-                       break;
-               }
-
-
-       case LCD_Set_Cursor_Pos:{
-                       struct lcd_display display;
-
-                       if (copy_from_user
-                           (&display, (struct lcd_display *) arg,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-
-                       a = (display.cursor_address | kLCD_Addr);
-
-                       udelay(150);
-                       BusyCheck();
-                       LCDWriteInst(a);
-
-                       break;
-               }
-
-       case LCD_Get_Cursor:{
-                       struct lcd_display display;
-
-                       udelay(150);
-                       BusyCheck();
-                       display.character = LCDReadData;
-
-                       if (copy_to_user
-                           ((struct lcd_display *) arg, &display,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-                       udelay(150);
-                       BusyCheck();
-                       LCDWriteInst(0x10);
-
-                       break;
-               }
-
-       case LCD_Set_Cursor:{
-                       struct lcd_display display;
-
-                       if (copy_from_user
-                           (&display, (struct lcd_display *) arg,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-
-                       udelay(150);
-                       BusyCheck();
-                       LCDWriteData(display.character);
-                       udelay(150);
-                       BusyCheck();
-                       LCDWriteInst(0x10);
-
-                       break;
-               }
-
-
-       case LCD_Disp_Left:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x18);
-               break;
-
-       case LCD_Disp_Right:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x1C);
-               break;
-
-       case LCD_Home:
-               udelay(150);
-               BusyCheck();
-               LCDWriteInst(0x02);
-               break;
-
-       case LCD_Write:{
-                       struct lcd_display display;
-                       unsigned int index;
-
-
-                       if (copy_from_user
-                           (&display, (struct lcd_display *) arg,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-
-                       udelay(150);
-                       BusyCheck();
-                       LCDWriteInst(0x80);
-                       udelay(150);
-                       BusyCheck();
-
-                       for (index = 0; index < (display.size1); index++) {
-                               udelay(150);
-                               BusyCheck();
-                               LCDWriteData(display.line1[index]);
-                               BusyCheck();
-                       }
-
-                       udelay(150);
-                       BusyCheck();
-                       LCDWriteInst(0xC0);
-                       udelay(150);
-                       BusyCheck();
-                       for (index = 0; index < (display.size2); index++) {
-                               udelay(150);
-                               BusyCheck();
-                               LCDWriteData(display.line2[index]);
-                       }
-
-                       break;
-               }
-
-       case LCD_Read:{
-                       struct lcd_display display;
-
-                       BusyCheck();
-                       for (address = kDD_R00; address <= kDD_R01;
-                            address++) {
-                               a = (address | kLCD_Addr);
-
-                               udelay(150);
-                               BusyCheck();
-                               LCDWriteInst(a);
-                               udelay(150);
-                               BusyCheck();
-                               display.line1[address] = LCDReadData;
-                       }
-
-                       display.line1[0x27] = '\0';
-
-                       for (address = kDD_R10; address <= kDD_R11;
-                            address++) {
-                               a = (address | kLCD_Addr);
-
-                               udelay(150);
-                               BusyCheck();
-                               LCDWriteInst(a);
-
-                               udelay(150);
-                               BusyCheck();
-                               display.line2[address - 0x40] =
-                                   LCDReadData;
-                       }
-
-                       display.line2[0x27] = '\0';
-
-                       if (copy_to_user
-                           ((struct lcd_display *) arg, &display,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-                       break;
-               }
-
-//  set all GPIO leds to led_display.leds
-
-       case LED_Set:{
-                       struct lcd_display led_display;
-
-
-                       if (copy_from_user
-                           (&led_display, (struct lcd_display *) arg,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-
-                       led_state = led_display.leds;
-                       LEDSet(led_state);
-
-                       break;
-               }
-
-
-//  set only bit led_display.leds
-
-       case LED_Bit_Set:{
-                       unsigned int i;
-                       int bit = 1;
-                       struct lcd_display led_display;
-
-
-                       if (copy_from_user
-                           (&led_display, (struct lcd_display *) arg,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-
-                       for (i = 0; i < (int) led_display.leds; i++) {
-                               bit = 2 * bit;
-                       }
-
-                       led_state = led_state | bit;
-                       LEDSet(led_state);
-                       break;
-               }
-
-//  clear only bit led_display.leds
-
-       case LED_Bit_Clear:{
-                       unsigned int i;
-                       int bit = 1;
-                       struct lcd_display led_display;
-
-
-                       if (copy_from_user
-                           (&led_display, (struct lcd_display *) arg,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-
-                       for (i = 0; i < (int) led_display.leds; i++) {
-                               bit = 2 * bit;
-                       }
-
-                       led_state = led_state & ~bit;
-                       LEDSet(led_state);
-                       break;
-               }
-
-
-       case BUTTON_Read:{
-                       button_display.buttons = GPIRead;
-                       if (copy_to_user
-                           ((struct lcd_display *) arg, &button_display,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-                       break;
-               }
-
-       case LINK_Check:{
-                       button_display.buttons =
-                           *((volatile unsigned long *) (0xB0100060));
-                       if (copy_to_user
-                           ((struct lcd_display *) arg, &button_display,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-                       break;
-               }
-
-       case LINK_Check_2:{
-                       int iface_num;
-
-                       /* panel-utils should pass in the desired interface status is wanted for
-                        * in "buttons" of the structure.  We will set this to non-zero if the
-                        * link is in fact up for the requested interface.  --DaveM
-                        */
-                       if (copy_from_user
-                           (&button_display, (struct lcd_display *) arg,
-                            sizeof(button_display)))
-                               return -EFAULT;
-                       iface_num = button_display.buttons;
-#if defined(CONFIG_TULIP) && 0
-                       if (iface_num >= 0 &&
-                           iface_num < MAX_INTERFACES &&
-                           linkcheck_callbacks[iface_num] != NULL) {
-                               button_display.buttons =
-                                   linkcheck_callbacks[iface_num]
-                                   (linkcheck_cookies[iface_num]);
-                       } else
-#endif
-                               button_display.buttons = 0;
-
-                       if (__copy_to_user
-                           ((struct lcd_display *) arg, &button_display,
-                            sizeof(struct lcd_display)))
-                               return -EFAULT;
-                       break;
-               }
-
-       default:
-               return -EINVAL;
-
-       }
-
-       return 0;
-
-}
-
-static int lcd_open(struct inode *inode, struct file *file)
-{
-       cycle_kernel_lock();
-
-       if (!lcd_present)
-               return -ENXIO;
-       else
-               return 0;
-}
-
-/* Only RESET or NEXT counts as button pressed */
-
-static inline int button_pressed(void)
-{
-       unsigned long buttons = GPIRead;
-
-       if ((buttons == BUTTON_Next) || (buttons == BUTTON_Next_B)
-           || (buttons == BUTTON_Reset_B))
-               return buttons;
-       return 0;
-}
-
-/* LED daemon sits on this and we wake him up once a key is pressed. */
-
-static int lcd_waiters = 0;
-
-static ssize_t lcd_read(struct file *file, char *buf,
-                    size_t count, loff_t *ofs)
-{
-       long buttons_now;
-
-       if (lcd_waiters > 0)
-               return -EINVAL;
-
-       lcd_waiters++;
-       while (((buttons_now = (long) button_pressed()) == 0) &&
-              !(signal_pending(current))) {
-               msleep_interruptible(2000);
-       }
-       lcd_waiters--;
-
-       if (signal_pending(current))
-               return -ERESTARTSYS;
-       return buttons_now;
-}
-
-/*
- *     The various file operations we support.
- */
-
-static const struct file_operations lcd_fops = {
-       .read = lcd_read,
-       .ioctl = lcd_ioctl,
-       .open = lcd_open,
-};
-
-static struct miscdevice lcd_dev = {
-       MISC_DYNAMIC_MINOR,
-       "lcd",
-       &lcd_fops
-};
-
-static int lcd_init(void)
-{
-       int ret;
-       unsigned long data;
-
-       pr_info("%s\n", LCD_DRIVER);
-       ret = misc_register(&lcd_dev);
-       if (ret) {
-               printk(KERN_WARNING LCD "Unable to register misc device.\n");
-               return ret;
-       }
-
-       /* Check region? Naaah! Just snarf it up. */
-/*     request_region(RTC_PORT(0), RTC_IO_EXTENT, "lcd");*/
-
-       udelay(150);
-       data = LCDReadData;
-       if ((data & 0x000000FF) == (0x00)) {
-               lcd_present = 0;
-               pr_info(LCD "LCD Not Present\n");
-       } else {
-               lcd_present = 1;
-               WRITE_GAL(kGal_DevBank2PReg, kGal_DevBank2Cfg);
-               WRITE_GAL(kGal_DevBank3PReg, kGal_DevBank3Cfg);
-       }
-
-       return 0;
-}
-
-static void __exit lcd_exit(void)
-{
-       misc_deregister(&lcd_dev);
-}
-
-module_init(lcd_init);
-module_exit(lcd_exit);
-
-MODULE_AUTHOR("Andrew Bose");
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/lcd.h b/drivers/char/lcd.h
deleted file mode 100644 (file)
index 290b3ff..0000000
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * LED, LCD and Button panel driver for Cobalt
- *
- * 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.
- *
- * Copyright (C) 1996, 1997 by Andrew Bose
- *
- * Linux kernel version history:
- *       March 2001: Ported from 2.0.34  by Liam Davies
- *
- */
-
-// function headers
-
-#define LCD_CHARS_PER_LINE 40
-#define MAX_IDLE_TIME 120
-
-struct lcd_display {
-        unsigned buttons;
-        int size1;
-        int size2;
-        unsigned char line1[LCD_CHARS_PER_LINE];
-        unsigned char line2[LCD_CHARS_PER_LINE];
-        unsigned char cursor_address;
-        unsigned char character;
-        unsigned char leds;
-        unsigned char *RomImage;
-};
-
-
-
-#define LCD_DRIVER     "Cobalt LCD Driver v2.10"
-
-#define LCD            "lcd: "
-
-#define kLCD_IR                0x0F000000
-#define kLCD_DR                0x0F000010
-#define kGPI           0x0D000000
-#define kLED           0x0C000000
-
-#define kDD_R00         0x00
-#define kDD_R01         0x27
-#define kDD_R10         0x40
-#define kDD_R11         0x67
-
-#define kLCD_Addr       0x00000080
-
-#define LCDTimeoutValue        0xfff
-
-
-// Macros
-
-#define LCDWriteData(x)        outl((x << 24), kLCD_DR)
-#define LCDWriteInst(x)        outl((x << 24), kLCD_IR)
-
-#define LCDReadData    (inl(kLCD_DR) >> 24)
-#define LCDReadInst    (inl(kLCD_IR) >> 24)
-
-#define GPIRead                (inl(kGPI) >> 24)
-
-#define LEDSet(x)      outb((char)x, kLED)
-
-#define WRITE_GAL(x,y) outl(y, 0x04000000 | (x))
-#define BusyCheck()    while ((LCDReadInst & 0x80) == 0x80)
-
-
-
-/*
- * Function command codes for io_ctl.
- */
-#define LCD_On                 1
-#define LCD_Off                        2
-#define LCD_Clear              3
-#define LCD_Reset              4
-#define LCD_Cursor_Left                5
-#define LCD_Cursor_Right       6
-#define LCD_Disp_Left          7
-#define LCD_Disp_Right         8
-#define LCD_Get_Cursor         9
-#define LCD_Set_Cursor         10
-#define LCD_Home               11
-#define LCD_Read               12
-#define LCD_Write              13
-#define LCD_Cursor_Off         14
-#define LCD_Cursor_On          15
-#define LCD_Get_Cursor_Pos     16
-#define LCD_Set_Cursor_Pos     17
-#define LCD_Blink_Off           18
-
-#define LED_Set                        40
-#define LED_Bit_Set            41
-#define LED_Bit_Clear          42
-
-
-//  Button defs
-#define BUTTON_Read             50
-
-
-// Ethernet LINK check hackaroo
-#define LINK_Check              90
-#define LINK_Check_2           91
-
-//  Button patterns  _B - single layer lcd boards
-
-#define BUTTON_NONE               0x3F
-#define BUTTON_NONE_B             0xFE
-
-#define BUTTON_Left               0x3B
-#define BUTTON_Left_B             0xFA
-
-#define BUTTON_Right              0x37
-#define BUTTON_Right_B            0xDE
-
-#define BUTTON_Up                 0x2F
-#define BUTTON_Up_B               0xF6
-
-#define BUTTON_Down               0x1F
-#define BUTTON_Down_B             0xEE
-
-#define BUTTON_Next               0x3D
-#define BUTTON_Next_B             0x7E
-
-#define BUTTON_Enter              0x3E
-#define BUTTON_Enter_B            0xBE
-
-#define BUTTON_Reset_B            0xFC
-
-
-// debounce constants
-
-#define BUTTON_SENSE            160000
-#define BUTTON_DEBOUNCE                5000
-
-
-//  Galileo register stuff
-
-#define kGal_DevBank2Cfg        0x1466DB33
-#define kGal_DevBank2PReg       0x464
-#define kGal_DevBank3Cfg        0x146FDFFB
-#define kGal_DevBank3PReg       0x468
-
-// Network
-
-#define kIPADDR                        1
-#define kNETMASK               2
-#define kGATEWAY               3
-#define kDNS                   4
-
-#define kClassA                        5
-#define kClassB                        6
-#define kClassC                        7
-