drivers/char: remove old broken Cobalt LCD driver
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>
This commit is contained in:
Yoichi Yuasa
Linus Torvalds
parent
5abe3b4063
commit
18b095d4b8
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@ -857,13 +857,6 @@ config DS1302
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endif # RTC_LIB
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config COBALT_LCD
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bool "Support for Cobalt LCD"
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depends on MIPS_COBALT
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help
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This option enables support for the LCD display and buttons found
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on Cobalt systems through a misc device.
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config DTLK
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tristate "Double Talk PC internal speech card support"
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depends on ISA
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@ -88,7 +88,6 @@ obj-$(CONFIG_TOSHIBA) += toshiba.o
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obj-$(CONFIG_I8K) += i8k.o
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obj-$(CONFIG_DS1620) += ds1620.o
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obj-$(CONFIG_HW_RANDOM) += hw_random/
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obj-$(CONFIG_COBALT_LCD) += lcd.o
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obj-$(CONFIG_PPDEV) += ppdev.o
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obj-$(CONFIG_NWBUTTON) += nwbutton.o
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obj-$(CONFIG_NWFLASH) += nwflash.o
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@ -1,516 +0,0 @@
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/*
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* LCD, LED and Button interface for Cobalt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1996, 1997 by Andrew Bose
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*
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* Linux kernel version history:
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* March 2001: Ported from 2.0.34 by Liam Davies
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*
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*/
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/miscdevice.h>
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#include <linux/slab.h>
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#include <linux/ioport.h>
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#include <linux/fcntl.h>
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#include <linux/mc146818rtc.h>
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#include <linux/netdevice.h>
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#include <linux/sched.h>
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#include <linux/smp_lock.h>
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#include <linux/delay.h>
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#include "lcd.h"
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static int lcd_ioctl(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg);
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static unsigned int lcd_present = 1;
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/* used in arch/mips/cobalt/reset.c */
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int led_state = 0;
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#if defined(CONFIG_TULIP) && 0
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#define MAX_INTERFACES 8
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static linkcheck_func_t linkcheck_callbacks[MAX_INTERFACES];
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static void *linkcheck_cookies[MAX_INTERFACES];
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int lcd_register_linkcheck_func(int iface_num, void *func, void *cookie)
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{
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if (iface_num < 0 ||
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iface_num >= MAX_INTERFACES ||
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linkcheck_callbacks[iface_num] != NULL)
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return -1;
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linkcheck_callbacks[iface_num] = (linkcheck_func_t) func;
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linkcheck_cookies[iface_num] = cookie;
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return 0;
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}
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#endif
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static int lcd_ioctl(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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struct lcd_display button_display;
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unsigned long address, a;
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switch (cmd) {
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case LCD_On:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x0F);
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break;
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case LCD_Off:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x08);
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break;
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case LCD_Reset:
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udelay(150);
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LCDWriteInst(0x3F);
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udelay(150);
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LCDWriteInst(0x3F);
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udelay(150);
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LCDWriteInst(0x3F);
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udelay(150);
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LCDWriteInst(0x3F);
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udelay(150);
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LCDWriteInst(0x01);
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udelay(150);
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LCDWriteInst(0x06);
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break;
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case LCD_Clear:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x01);
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break;
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case LCD_Cursor_Left:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x10);
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break;
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case LCD_Cursor_Right:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x14);
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break;
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case LCD_Cursor_Off:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x0C);
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break;
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case LCD_Cursor_On:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x0F);
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break;
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case LCD_Blink_Off:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x0E);
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break;
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case LCD_Get_Cursor_Pos:{
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struct lcd_display display;
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udelay(150);
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BusyCheck();
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display.cursor_address = (LCDReadInst);
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display.cursor_address =
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(display.cursor_address & 0x07F);
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if (copy_to_user
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((struct lcd_display *) arg, &display,
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sizeof(struct lcd_display)))
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return -EFAULT;
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break;
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}
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case LCD_Set_Cursor_Pos:{
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struct lcd_display display;
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if (copy_from_user
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(&display, (struct lcd_display *) arg,
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sizeof(struct lcd_display)))
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return -EFAULT;
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a = (display.cursor_address | kLCD_Addr);
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udelay(150);
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BusyCheck();
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LCDWriteInst(a);
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break;
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}
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case LCD_Get_Cursor:{
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struct lcd_display display;
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udelay(150);
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BusyCheck();
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display.character = LCDReadData;
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if (copy_to_user
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((struct lcd_display *) arg, &display,
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sizeof(struct lcd_display)))
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return -EFAULT;
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x10);
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break;
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}
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case LCD_Set_Cursor:{
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struct lcd_display display;
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if (copy_from_user
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(&display, (struct lcd_display *) arg,
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sizeof(struct lcd_display)))
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return -EFAULT;
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udelay(150);
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BusyCheck();
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LCDWriteData(display.character);
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x10);
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break;
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}
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case LCD_Disp_Left:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x18);
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break;
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case LCD_Disp_Right:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x1C);
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break;
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case LCD_Home:
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x02);
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break;
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case LCD_Write:{
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struct lcd_display display;
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unsigned int index;
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if (copy_from_user
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(&display, (struct lcd_display *) arg,
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sizeof(struct lcd_display)))
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return -EFAULT;
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udelay(150);
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BusyCheck();
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LCDWriteInst(0x80);
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udelay(150);
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BusyCheck();
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for (index = 0; index < (display.size1); index++) {
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udelay(150);
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BusyCheck();
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LCDWriteData(display.line1[index]);
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BusyCheck();
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}
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udelay(150);
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BusyCheck();
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LCDWriteInst(0xC0);
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udelay(150);
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BusyCheck();
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for (index = 0; index < (display.size2); index++) {
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udelay(150);
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BusyCheck();
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LCDWriteData(display.line2[index]);
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}
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break;
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}
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case LCD_Read:{
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struct lcd_display display;
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BusyCheck();
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for (address = kDD_R00; address <= kDD_R01;
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address++) {
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a = (address | kLCD_Addr);
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udelay(150);
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BusyCheck();
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LCDWriteInst(a);
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udelay(150);
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BusyCheck();
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display.line1[address] = LCDReadData;
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}
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display.line1[0x27] = '\0';
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for (address = kDD_R10; address <= kDD_R11;
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address++) {
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a = (address | kLCD_Addr);
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udelay(150);
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BusyCheck();
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LCDWriteInst(a);
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udelay(150);
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BusyCheck();
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display.line2[address - 0x40] =
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LCDReadData;
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}
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display.line2[0x27] = '\0';
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if (copy_to_user
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((struct lcd_display *) arg, &display,
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sizeof(struct lcd_display)))
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return -EFAULT;
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break;
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}
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// set all GPIO leds to led_display.leds
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case LED_Set:{
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struct lcd_display led_display;
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if (copy_from_user
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(&led_display, (struct lcd_display *) arg,
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sizeof(struct lcd_display)))
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return -EFAULT;
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led_state = led_display.leds;
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LEDSet(led_state);
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break;
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}
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// set only bit led_display.leds
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case LED_Bit_Set:{
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unsigned int i;
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int bit = 1;
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struct lcd_display led_display;
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if (copy_from_user
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(&led_display, (struct lcd_display *) arg,
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sizeof(struct lcd_display)))
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return -EFAULT;
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for (i = 0; i < (int) led_display.leds; i++) {
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bit = 2 * bit;
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}
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led_state = led_state | bit;
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LEDSet(led_state);
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break;
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}
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// clear only bit led_display.leds
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case LED_Bit_Clear:{
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unsigned int i;
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int bit = 1;
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struct lcd_display led_display;
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if (copy_from_user
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(&led_display, (struct lcd_display *) arg,
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sizeof(struct lcd_display)))
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return -EFAULT;
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for (i = 0; i < (int) led_display.leds; i++) {
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bit = 2 * bit;
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}
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led_state = led_state & ~bit;
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LEDSet(led_state);
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break;
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}
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case BUTTON_Read:{
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button_display.buttons = GPIRead;
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if (copy_to_user
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((struct lcd_display *) arg, &button_display,
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sizeof(struct lcd_display)))
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return -EFAULT;
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break;
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}
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case LINK_Check:{
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button_display.buttons =
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*((volatile unsigned long *) (0xB0100060));
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if (copy_to_user
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((struct lcd_display *) arg, &button_display,
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sizeof(struct lcd_display)))
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return -EFAULT;
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break;
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}
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case LINK_Check_2:{
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int iface_num;
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/* panel-utils should pass in the desired interface status is wanted for
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* in "buttons" of the structure. We will set this to non-zero if the
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* link is in fact up for the requested interface. --DaveM
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*/
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if (copy_from_user
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(&button_display, (struct lcd_display *) arg,
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sizeof(button_display)))
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return -EFAULT;
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iface_num = button_display.buttons;
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#if defined(CONFIG_TULIP) && 0
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if (iface_num >= 0 &&
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iface_num < MAX_INTERFACES &&
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linkcheck_callbacks[iface_num] != NULL) {
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button_display.buttons =
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linkcheck_callbacks[iface_num]
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(linkcheck_cookies[iface_num]);
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} else
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#endif
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button_display.buttons = 0;
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if (__copy_to_user
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((struct lcd_display *) arg, &button_display,
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sizeof(struct lcd_display)))
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return -EFAULT;
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break;
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}
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int lcd_open(struct inode *inode, struct file *file)
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{
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cycle_kernel_lock();
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if (!lcd_present)
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return -ENXIO;
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else
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return 0;
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}
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/* Only RESET or NEXT counts as button pressed */
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static inline int button_pressed(void)
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{
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unsigned long buttons = GPIRead;
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if ((buttons == BUTTON_Next) || (buttons == BUTTON_Next_B)
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|| (buttons == BUTTON_Reset_B))
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return buttons;
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return 0;
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}
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/* LED daemon sits on this and we wake him up once a key is pressed. */
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static int lcd_waiters = 0;
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static ssize_t lcd_read(struct file *file, char *buf,
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size_t count, loff_t *ofs)
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{
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long buttons_now;
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if (lcd_waiters > 0)
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return -EINVAL;
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lcd_waiters++;
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while (((buttons_now = (long) button_pressed()) == 0) &&
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!(signal_pending(current))) {
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msleep_interruptible(2000);
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}
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lcd_waiters--;
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if (signal_pending(current))
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return -ERESTARTSYS;
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return buttons_now;
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}
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/*
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* The various file operations we support.
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*/
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static const struct file_operations lcd_fops = {
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.read = lcd_read,
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.ioctl = lcd_ioctl,
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.open = lcd_open,
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};
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static struct miscdevice lcd_dev = {
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MISC_DYNAMIC_MINOR,
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"lcd",
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&lcd_fops
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};
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static int lcd_init(void)
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{
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int ret;
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unsigned long data;
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pr_info("%s\n", LCD_DRIVER);
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ret = misc_register(&lcd_dev);
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if (ret) {
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printk(KERN_WARNING LCD "Unable to register misc device.\n");
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return ret;
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}
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/* Check region? Naaah! Just snarf it up. */
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/* request_region(RTC_PORT(0), RTC_IO_EXTENT, "lcd");*/
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udelay(150);
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data = LCDReadData;
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if ((data & 0x000000FF) == (0x00)) {
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lcd_present = 0;
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pr_info(LCD "LCD Not Present\n");
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} else {
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lcd_present = 1;
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WRITE_GAL(kGal_DevBank2PReg, kGal_DevBank2Cfg);
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WRITE_GAL(kGal_DevBank3PReg, kGal_DevBank3Cfg);
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}
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return 0;
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}
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static void __exit lcd_exit(void)
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{
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misc_deregister(&lcd_dev);
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}
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module_init(lcd_init);
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module_exit(lcd_exit);
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MODULE_AUTHOR("Andrew Bose");
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MODULE_LICENSE("GPL");
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|
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@ -1,154 +0,0 @@
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/*
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* 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.
|
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*
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* Copyright (C) 1996, 1997 by Andrew Bose
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*
|
||||
* 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
|
||||
|
||||
Loading…
Reference in New Issue