diff options
Diffstat (limited to 'include/asm-mips/keyboard.h')
| -rw-r--r-- | include/asm-mips/keyboard.h | 198 |
1 files changed, 45 insertions, 153 deletions
diff --git a/include/asm-mips/keyboard.h b/include/asm-mips/keyboard.h index 04dada787..2c4396f04 100644 --- a/include/asm-mips/keyboard.h +++ b/include/asm-mips/keyboard.h @@ -4,12 +4,34 @@ * 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. + * + * This file is a mess. Put on your peril sensitive glasses. */ #ifndef __ASM_MIPS_KEYBOARD_H #define __ASM_MIPS_KEYBOARD_H +#ifdef __KERNEL__ + #include <linux/config.h> #include <linux/delay.h> +#include <linux/ioport.h> + +extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode); +extern int pckbd_getkeycode(unsigned int scancode); +extern int pckbd_pretranslate(unsigned char scancode, char raw_mode); +extern int pckbd_translate(unsigned char scancode, unsigned char *keycode, + char raw_mode); +extern char pckbd_unexpected_up(unsigned char keycode); +extern void pckbd_leds(unsigned char leds); +extern void pckbd_init_hw(void); + +#define kbd_setkeycode pckbd_setkeycode +#define kbd_getkeycode pckbd_getkeycode +#define kbd_pretranslate pckbd_pretranslate +#define kbd_translate pckbd_translate +#define kbd_unexpected_up pckbd_unexpected_up +#define kbd_leds pckbd_leds +#define kbd_init_hw pckbd_init_hw /* * The default IO slowdown is doing 'inb()'s from 0x61, which should be @@ -21,6 +43,13 @@ #define SLOW_IO_BY_JUMPING #include <asm/io.h> +/* + * keyboard controller registers + */ +#define KBD_STATUS_REG (unsigned int) 0x64 +#define KBD_CNTL_REG (unsigned int) 0x64 +#define KBD_DATA_REG (unsigned int) 0x60 + #ifdef CONFIG_SGI #include <asm/segment.h> #include <asm/sgihpc.h> @@ -44,8 +73,8 @@ #ifndef CONFIG_SGI #define KBD_REPORT_ERR #endif - -__initfunc(int initialize_kbd(void)); +#define KBD_REPORT_UNKN +/* #define KBD_IS_FOCUS_9000 */ int (*kbd_inb_p)(unsigned short port); int (*kbd_inb)(unsigned short port); @@ -60,14 +89,16 @@ void (*kbd_outb)(unsigned char data, unsigned short port); /* XXX Define both and ... */ #ifdef CONFIG_MIPS_JAZZ #define INIT_KBD /* full initialization for the keyboard controller. */ -static volatile keyboard_hardware *kh = (void *) JAZZ_KEYBOARD_ADDRESS; +#define __khtype keyboard_hardware #endif #ifdef CONFIG_SGI #define INIT_KBD /* full initialization for the keyboard controller. */ -volatile struct hpc_keyb *kh = (struct hpc_keyb *) (KSEG1 + 0x1fbd9800 + 64); +#define __khtype struct hpc_keyb #endif +static volatile __khtype *kh; + static int jazz_kbd_inb_p(unsigned short port) { @@ -147,158 +178,14 @@ port_kbd_outb(unsigned char data, unsigned short port) return outb(data, port); } -#ifdef INIT_KBD -static int -kbd_wait_for_input(void) -{ - int n; - int status, data; - - n = TIMEOUT_CONST; - do { - status = kbd_inb(KBD_STATUS_REG); - /* - * Wait for input data to become available. This bit will - * then be cleared by the following read of the DATA - * register. - */ - - if (!(status & KBD_OBF)) - continue; - - data = kbd_inb(KBD_DATA_REG); - - /* - * Check to see if a timeout error has occurred. This means - * that transmission was started but did not complete in the - * normal time cycle. PERR is set when a parity error occurred - * in the last transmission. - */ - if (status & (KBD_GTO | KBD_PERR)) { - continue; - } - return (data & 0xff); - } while (--n); - return (-1); /* timed-out if fell through to here... */ -} - -static void kbd_write(int address, int data) -{ - int status; - - do { - status = kbd_inb(KBD_STATUS_REG); /* spin until input buffer empty*/ - } while (status & KBD_IBF); - kbd_outb(data, address); /* write out the data*/ -} - -__initfunc(int initialize_kbd(void)) -{ - unsigned long flags; - - save_flags(flags); cli(); - - /* Flush any pending input. */ - while (kbd_wait_for_input() != -1) - continue; +static inline void kb_wait(void); +static int send_data(unsigned char data); - /* - * Test the keyboard interface. - * This seems to be the only way to get it going. - * If the test is successful a x55 is placed in the input buffer. - */ - kbd_write(KBD_CNTL_REG, KBD_SELF_TEST); - if (kbd_wait_for_input() != 0x55) { - printk(KERN_WARNING "initialize_kbd: " - "keyboard failed self test.\n"); - restore_flags(flags); - return(-1); - } - - /* - * Perform a keyboard interface test. This causes the controller - * to test the keyboard clock and data lines. The results of the - * test are placed in the input buffer. - */ - kbd_write(KBD_CNTL_REG, KBD_SELF_TEST2); - if (kbd_wait_for_input() != 0x00) { - printk(KERN_WARNING "initialize_kbd: " - "keyboard failed self test 2.\n"); - restore_flags(flags); - return(-1); - } - - /* Enable the keyboard by allowing the keyboard clock to run. */ - kbd_write(KBD_CNTL_REG, KBD_CNTL_ENABLE); - - /* - * Reset keyboard. If the read times out - * then the assumption is that no keyboard is - * plugged into the machine. - * This defaults the keyboard to scan-code set 2. - */ - kbd_write(KBD_DATA_REG, KBD_RESET); - if (kbd_wait_for_input() != KBD_ACK) { - printk(KERN_WARNING "initialize_kbd: " - "reset kbd failed, no ACK.\n"); - restore_flags(flags); - return(-1); - } - - /* - * Give the keyboard some time to breathe ... - * ... or it fucks up the floppy controller, too. Wiered. - */ - udelay(20); - - if (kbd_wait_for_input() != KBD_POR) { - printk(KERN_WARNING "initialize_kbd: " - "reset kbd failed, not POR.\n"); - restore_flags(flags); - return(-1); - } - - /* - * now do a DEFAULTS_DISABLE always - */ - kbd_write(KBD_DATA_REG, KBD_DISABLE); - if (kbd_wait_for_input() != KBD_ACK) { - printk(KERN_WARNING "initialize_kbd: " - "disable kbd failed, no ACK.\n"); - restore_flags(flags); - return(-1); - } - - /* - * Enable keyboard interrupt, operate in "sys" mode, - * enable keyboard (by clearing the disable keyboard bit), - * disable mouse, do conversion of keycodes. - */ - kbd_write(KBD_CNTL_REG, KBD_WRITE_MODE); - kbd_write(KBD_DATA_REG, KBD_EKI|KBD_SYS|KBD_DMS|KBD_KCC); - - /* - * now ENABLE the keyboard to set it scanning... - */ - kbd_write(KBD_DATA_REG, KBD_ENABLE); - if (kbd_wait_for_input() != KBD_ACK) { - printk(KERN_WARNING "initialize_kbd: " - "keyboard enable failed.\n"); - restore_flags(flags); - return(-1); - } - - restore_flags(flags); - - return (1); -} -#endif - -extern __inline__ void -keyboard_setup(void) +extern __inline__ void keyboard_setup(void) { #ifdef CONFIG_MIPS_JAZZ if (mips_machgroup == MACH_GROUP_JAZZ) { + kh = (void *) JAZZ_KEYBOARD_ADDRESS; kbd_inb_p = jazz_kbd_inb_p; kbd_inb = jazz_kbd_inb; kbd_outb_p = jazz_kbd_outb_p; @@ -308,7 +195,6 @@ keyboard_setup(void) */ *((volatile u16 *)JAZZ_IO_IRQ_ENABLE) |= JAZZ_IE_KEYBOARD; set_cp0_status(IE_IRQ1, IE_IRQ1); - initialize_kbd(); } else #endif if (mips_machgroup == MACH_GROUP_ARC || /* this is for Deskstation */ @@ -334,6 +220,12 @@ keyboard_setup(void) if (!send_data(0xf0) || !send_data(0x02)) printk("Scanmode 2 change failed\n"); } +#ifdef CONFIG_SGI + if (mips_machgroup == MACH_SGI_INDY) { + kh = (struct hpc_keyb *) (KSEG1 + 0x1fbd9800 + 64); + } +#endif } +#endif /* __KERNEL */ #endif /* __ASM_MIPS_KEYBOARD_H */ |