diff options
Diffstat (limited to 'drivers/char/psaux.c')
-rw-r--r-- | drivers/char/psaux.c | 650 |
1 files changed, 281 insertions, 369 deletions
diff --git a/drivers/char/psaux.c b/drivers/char/psaux.c index eea857b8a..d329a6883 100644 --- a/drivers/char/psaux.c +++ b/drivers/char/psaux.c @@ -28,6 +28,8 @@ * * Fixed keyboard lockups at open time * 3-Jul-96, 22-Aug-96 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> + * + * Cleanup by Martin Mares, 01-Jun-97 (now uses the new PC kbd include) */ /* Uncomment the following line if your mouse needs initialization. */ @@ -36,7 +38,6 @@ #include <linux/module.h> -#include <linux/config.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/interrupt.h> @@ -53,140 +54,115 @@ #include <asm/uaccess.h> #include <asm/system.h> -#include "pc_keyb.h" - -#ifdef CONFIG_SGI -#include <asm/segment.h> -#include <asm/sgihpc.h> -#endif - -#define PSMOUSE_MINOR 1 /* minor device # for this mouse */ - -/* aux controller ports */ -#define AUX_INPUT_PORT 0x60 /* Aux device output buffer */ -#define AUX_OUTPUT_PORT 0x60 /* Aux device input buffer */ -#define AUX_COMMAND 0x64 /* Aux device command buffer */ -#define AUX_STATUS 0x64 /* Aux device status reg */ - -/* aux controller status bits */ -#define AUX_OBUF_FULL 0x21 /* output buffer (from device) full */ -#define AUX_IBUF_FULL 0x02 /* input buffer (to device) full */ +#include <linux/config.h> -/* aux controller commands */ -#define AUX_CMD_WRITE 0x60 /* value to write to controller */ -#define AUX_MAGIC_WRITE 0xd4 /* value to send aux device data */ +#include "pc_keyb.h" -#define AUX_INTS_ON 0x47 /* enable controller interrupts */ -#define AUX_INTS_OFF 0x65 /* disable controller interrupts */ +#include <asm/keyboard.h> -#define AUX_DISABLE 0xa7 /* disable aux */ -#define AUX_ENABLE 0xa8 /* enable aux */ +/* + * Generic declarations for both PS2 and 82C710 + */ +#define PSMOUSE_MINOR 1 /* minor device # for this mouse */ -#define MAX_RETRIES 60 /* some aux operations take long time*/ -#if defined(__alpha__) && !defined(CONFIG_PCI) -# define AUX_IRQ 9 /* Jensen is odd indeed */ -#else -# define AUX_IRQ 12 -#endif #define AUX_BUF_SIZE 2048 -#ifdef CONFIG_SGI -extern volatile struct hpc_keyb *sgi_kh; /* see keyboard.c */ +struct aux_queue { + unsigned long head; + unsigned long tail; + struct wait_queue *proc_list; + struct fasync_struct *fasync; + unsigned char buf[AUX_BUF_SIZE]; +}; -extern __inline__ int -ps2_inb_p(unsigned short port) -{ - int result; +static struct aux_queue *queue; +static int aux_ready = 0; +static int aux_count = 0; +static int aux_present = 0; - if(port == AUX_INPUT_PORT) - result = sgi_kh->data; - else if(port == AUX_STATUS) - result = sgi_kh->command; - return result; -} +/* + * Shared subroutines + */ -extern __inline__ int -ps2_inb(unsigned short port) +static unsigned int get_from_queue(void) { - int result; - - if(port == AUX_INPUT_PORT) - result = sgi_kh->data; - else if(port == AUX_STATUS) - result = sgi_kh->command; + unsigned int result; + unsigned long flags; + save_flags(flags); + cli(); + result = queue->buf[queue->tail]; + queue->tail = (queue->tail + 1) & (AUX_BUF_SIZE-1); + restore_flags(flags); return result; } -extern __inline__ void -ps2_outb_p(unsigned char data, unsigned short port) -{ - if(port == AUX_OUTPUT_PORT) - sgi_kh->data = data; - else if(port == AUX_COMMAND) - sgi_kh->command = data; -} -extern __inline__ void -ps2_outb(unsigned char data, unsigned short port) +static inline int queue_empty(void) { - if(port == AUX_OUTPUT_PORT) - sgi_kh->data = data; - else if(port == AUX_COMMAND) - sgi_kh->command = data; + return queue->head == queue->tail; } -#else -#define ps2_inb_p inb_p -#define ps2_inb inb -#define ps2_outb_p outb_p -#define ps2_outb outb -#endif - -/* 82C710 definitions */ -#define QP_DATA 0x310 /* Data Port I/O Address */ -#define QP_STATUS 0x311 /* Status Port I/O Address */ +static int fasync_aux(struct inode *inode, struct file *filp, int on) +{ + int retval; -#define QP_DEV_IDLE 0x01 /* Device Idle */ -#define QP_RX_FULL 0x02 /* Device Char received */ -#define QP_TX_IDLE 0x04 /* Device XMIT Idle */ -#define QP_RESET 0x08 /* Device Reset */ -#define QP_INTS_ON 0x10 /* Device Interrupt On */ -#define QP_ERROR_FLAG 0x20 /* Device Error */ -#define QP_CLEAR 0x40 /* Device Clear */ -#define QP_ENABLE 0x80 /* Device Enable */ + retval = fasync_helper(inode, filp, on, &queue->fasync); + if (retval < 0) + return retval; + return 0; +} -#define QP_IRQ 12 +/* + * PS/2 Aux Device + */ -extern unsigned char aux_device_present; -extern unsigned char kbd_read_mask; /* from keyboard.c */ +#define AUX_INTS_OFF (KBD_MODE_KCC | KBD_MODE_DISABLE_MOUSE | KBD_MODE_SYS | KBD_MODE_KBD_INT) +#define AUX_INTS_ON (KBD_MODE_KCC | KBD_MODE_SYS | KBD_MODE_MOUSE_INT | KBD_MODE_KBD_INT) -struct aux_queue { - unsigned long head; - unsigned long tail; - struct wait_queue *proc_list; - struct fasync_struct *fasync; - unsigned char buf[AUX_BUF_SIZE]; -}; +#define MAX_RETRIES 60 /* some aux operations take long time*/ -static struct aux_queue *queue; -static int aux_ready = 0; -static int aux_count = 0; -static int aux_present = 0; -static int poll_aux_status(void); -static int poll_aux_status_nosleep(void); -static int fasync_aux(struct inode *inode, struct file *filp, int on); +/* + * Status polling + */ -#ifdef CONFIG_82C710_MOUSE -static int qp_present = 0; -static int qp_count = 0; -static int qp_data = QP_DATA; -static int qp_status = QP_STATUS; +static int poll_aux_status(void) +{ + int retries=0; + unsigned char status; -static int poll_qp_status(void); -static int probe_qp(void); -#endif + while ((kbd_read_status() & 0x03) && retries < MAX_RETRIES) { + status = kbd_read_status(); + kbd_pause(); + if ((status & AUX_STAT_OBF) == AUX_STAT_OBF) { + kbd_read_input(); + kbd_pause(); + } + current->state = TASK_INTERRUPTIBLE; + current->timeout = jiffies + (5*HZ + 99) / 100; + schedule(); + retries++; + } + return !(retries==MAX_RETRIES); +} +static int poll_aux_status_nosleep(void) +{ + int retries = 0; + unsigned char status; + + while ((kbd_read_status() & (KBD_STAT_IBF | KBD_STAT_OBF)) + && retries < 1000000) { + status = kbd_read_status(); + kbd_pause(); + if ((status & AUX_STAT_OBF) == AUX_STAT_OBF) { + kbd_read_input(); + kbd_pause(); + } + retries++; + } + return !(retries == 1000000); +} /* * Write to aux device @@ -195,9 +171,9 @@ static int probe_qp(void); static void aux_write_dev(int val) { poll_aux_status(); - ps2_outb_p(AUX_MAGIC_WRITE,AUX_COMMAND); /* write magic cookie */ + kbd_write_command(KBD_CCMD_WRITE_MOUSE); /* Write magic cookie */ poll_aux_status(); - ps2_outb_p(val,AUX_OUTPUT_PORT); /* write data */ + kbd_write_output(val); /* Write data */ } /* @@ -208,24 +184,19 @@ static void aux_write_dev(int val) __initfunc(static void aux_write_dev_nosleep(int val)) { poll_aux_status_nosleep(); - ps2_outb_p(KBD_CCMD_WRITE_MOUSE, KBD_CNTL_REG); + kbd_write_command(KBD_CCMD_WRITE_MOUSE); poll_aux_status_nosleep(); - ps2_outb_p(val, KBD_DATA_REG); + kbd_write_output(val); } -static int aux_write_ack(int val) +__initfunc(static int aux_write_ack(int val)) { - int retries = 0; - - poll_aux_status_nosleep(); - ps2_outb_p(AUX_MAGIC_WRITE,AUX_COMMAND); - poll_aux_status_nosleep(); - ps2_outb_p(val,AUX_OUTPUT_PORT); + aux_write_dev_nosleep(val); poll_aux_status_nosleep(); - if ((ps2_inb(AUX_STATUS) & AUX_OBUF_FULL) == AUX_OBUF_FULL) + if ((kbd_read_status() & AUX_STAT_OBF) == AUX_STAT_OBF) { - return (ps2_inb(AUX_INPUT_PORT)); + return kbd_read_input(); } return 0; } @@ -238,38 +209,15 @@ static int aux_write_ack(int val) static void aux_write_cmd(int val) { poll_aux_status(); - ps2_outb_p(AUX_CMD_WRITE,AUX_COMMAND); + kbd_write_command(KBD_CCMD_WRITE_MODE); poll_aux_status(); - ps2_outb_p(val,AUX_OUTPUT_PORT); + kbd_write_output(val); } - -static unsigned int get_from_queue(void) -{ - unsigned int result; - unsigned long flags; - - save_flags(flags); - cli(); - result = queue->buf[queue->tail]; - queue->tail = (queue->tail + 1) & (AUX_BUF_SIZE-1); - restore_flags(flags); - return result; -} - - -static inline int queue_empty(void) -{ - return queue->head == queue->tail; -} - - - /* * Interrupt from the auxiliary device: a character * is waiting in the keyboard/aux controller. */ - #ifdef CONFIG_SGI /* On the SGI we export this routine because the keyboard chirps at * the same interrupt level. The status and data bytes are passed @@ -282,7 +230,7 @@ void aux_interrupt(unsigned char status, unsigned char data) int head = queue->head; int maxhead = (queue->tail-1) & (AUX_BUF_SIZE-1); - if ((status & AUX_OBUF_FULL) != AUX_OBUF_FULL) + if ((status & AUX_STAT_OBF) != AUX_STAT_OBF) return; add_mouse_randomness(queue->buf[head] = data); @@ -304,10 +252,10 @@ static void aux_interrupt(int cpl, void *dev_id, struct pt_regs * regs) int head = queue->head; int maxhead = (queue->tail-1) & (AUX_BUF_SIZE-1); - if ((ps2_inb(AUX_STATUS) & AUX_OBUF_FULL) != AUX_OBUF_FULL) + if ((kbd_read_status() & AUX_STAT_OBF) != AUX_STAT_OBF) return; - add_mouse_randomness(queue->buf[head] = ps2_inb(AUX_INPUT_PORT)); + add_mouse_randomness(queue->buf[head] = kbd_read_input()); if (head != maxhead) { head++; head &= AUX_BUF_SIZE-1; @@ -320,31 +268,6 @@ static void aux_interrupt(int cpl, void *dev_id, struct pt_regs * regs) } #endif /* !defined(CONFIG_SGI) */ -/* - * Interrupt handler for the 82C710 mouse port. A character - * is waiting in the 82C710. - */ - -#ifdef CONFIG_82C710_MOUSE -static void qp_interrupt(int cpl, void *dev_id, struct pt_regs * regs) -{ - int head = queue->head; - int maxhead = (queue->tail-1) & (AUX_BUF_SIZE-1); - - add_mouse_randomness(queue->buf[head] = ps2_inb(qp_data)); - if (head != maxhead) { - head++; - head &= AUX_BUF_SIZE-1; - } - queue->head = head; - aux_ready = 1; - if (queue->fasync) - kill_fasync(queue->fasync, SIGIO); - wake_up_interruptible(&queue->proc_list); -} -#endif - - static int release_aux(struct inode * inode, struct file * file) { fasync_aux(inode, file, 0); @@ -352,57 +275,17 @@ static int release_aux(struct inode * inode, struct file * file) return 0; /* disable kbd bh to avoid mixing of cmd bytes */ disable_bh(KEYBOARD_BH); - aux_write_cmd(AUX_INTS_OFF); /* disable controller ints */ + aux_write_cmd(AUX_INTS_OFF); /* Disable controller ints */ poll_aux_status(); - ps2_outb_p(AUX_DISABLE,AUX_COMMAND); /* Disable Aux device */ + kbd_write_command(KBD_CCMD_MOUSE_DISABLE); /* Disable Aux device */ poll_aux_status(); /* reenable kbd bh */ enable_bh(KEYBOARD_BH); -#ifdef CONFIG_MCA - free_irq(AUX_IRQ, inode); -#else -#ifndef CONFIG_SGI - free_irq(AUX_IRQ, NULL); -#endif -#endif + ps2_free_irq(inode); MOD_DEC_USE_COUNT; return 0; } -#ifdef CONFIG_82C710_MOUSE -static int release_qp(struct inode * inode, struct file * file) -{ - unsigned char status; - - fasync_aux(inode, file, 0); - if (!--qp_count) { - if (!poll_qp_status()) - printk("Warning: Mouse device busy in release_qp()\n"); - status = ps2_inb_p(qp_status); - ps2_outb_p(status & ~(QP_ENABLE|QP_INTS_ON), qp_status); - if (!poll_qp_status()) - printk("Warning: Mouse device busy in release_qp()\n"); - free_irq(QP_IRQ, NULL); - MOD_DEC_USE_COUNT; - } - return 0; -} -#endif - -static int fasync_aux(struct inode *inode, struct file *filp, int on) -{ - int retval; - - retval = fasync_helper(inode, filp, on, &queue->fasync); - if (retval < 0) - return retval; - return 0; -} - -/* - * Install interrupt handler. - * Enable auxiliary device. - */ static int open_aux(struct inode * inode, struct file * file) { @@ -415,14 +298,7 @@ static int open_aux(struct inode * inode, struct file * file) return -EBUSY; } queue->head = queue->tail = 0; /* Flush input queue */ -#ifdef CONFIG_MCA - if (request_irq(AUX_IRQ, aux_interrupt, MCA_bus ? SA_SHIRQ : 0, "PS/2 Mouse", inode)) -#else -#ifndef CONFIG_SGI - if (request_irq(AUX_IRQ, aux_interrupt, 0, "PS/2 Mouse", NULL)) -#endif -#endif - { + if(ps2_request_irq()) { aux_count--; return -EBUSY; } @@ -430,9 +306,9 @@ static int open_aux(struct inode * inode, struct file * file) /* disable kbd bh to avoid mixing of cmd bytes */ disable_bh(KEYBOARD_BH); poll_aux_status(); - ps2_outb_p(AUX_ENABLE,AUX_COMMAND); /* Enable Aux */ - aux_write_dev(AUX_ENABLE_DEV); /* enable aux device */ - aux_write_cmd(AUX_INTS_ON); /* enable controller ints */ + kbd_write_command(KBD_CCMD_MOUSE_ENABLE); /* Enable Aux */ + aux_write_dev(AUX_ENABLE_DEV); /* Enable aux device */ + aux_write_cmd(AUX_INTS_ON); /* Enable controller ints */ poll_aux_status(); /* reenable kbd bh */ enable_bh(KEYBOARD_BH); @@ -441,7 +317,112 @@ static int open_aux(struct inode * inode, struct file * file) return 0; } +/* + * Write to the aux device. + */ + +static long write_aux(struct inode * inode, struct file * file, + const char * buffer, unsigned long count) +{ + int retval = 0; + + if (count) { + int written = 0; + + /* disable kbd bh to avoid mixing of cmd bytes */ + disable_bh(KEYBOARD_BH); + + do { + char c; + if (!poll_aux_status()) + break; + kbd_write_command(KBD_CCMD_WRITE_MOUSE); + if (!poll_aux_status()) + break; + get_user(c, buffer++); + kbd_write_output(c); + written++; + } while (--count); + /* reenable kbd bh */ + enable_bh(KEYBOARD_BH); + retval = -EIO; + if (written) { + retval = written; + inode->i_mtime = CURRENT_TIME; + } + } + + return retval; +} + +/* + * 82C710 Interface + */ + #ifdef CONFIG_82C710_MOUSE + +#define QP_DATA 0x310 /* Data Port I/O Address */ +#define QP_STATUS 0x311 /* Status Port I/O Address */ + +#define QP_DEV_IDLE 0x01 /* Device Idle */ +#define QP_RX_FULL 0x02 /* Device Char received */ +#define QP_TX_IDLE 0x04 /* Device XMIT Idle */ +#define QP_RESET 0x08 /* Device Reset */ +#define QP_INTS_ON 0x10 /* Device Interrupt On */ +#define QP_ERROR_FLAG 0x20 /* Device Error */ +#define QP_CLEAR 0x40 /* Device Clear */ +#define QP_ENABLE 0x80 /* Device Enable */ + +#define QP_IRQ 12 + +static int qp_present = 0; +static int qp_count = 0; +static int qp_data = QP_DATA; +static int qp_status = QP_STATUS; + +static int poll_qp_status(void); +static int probe_qp(void); + +/* + * Interrupt handler for the 82C710 mouse port. A character + * is waiting in the 82C710. + */ + +static void qp_interrupt(int cpl, void *dev_id, struct pt_regs * regs) +{ + int head = queue->head; + int maxhead = (queue->tail-1) & (AUX_BUF_SIZE-1); + + add_mouse_randomness(queue->buf[head] = inb(qp_data)); + if (head != maxhead) { + head++; + head &= AUX_BUF_SIZE-1; + } + queue->head = head; + aux_ready = 1; + if (queue->fasync) + kill_fasync(queue->fasync, SIGIO); + wake_up_interruptible(&queue->proc_list); +} + +static int release_qp(struct inode * inode, struct file * file) +{ + unsigned char status; + + fasync_aux(inode, file, 0); + if (!--qp_count) { + if (!poll_qp_status()) + printk("Warning: Mouse device busy in release_qp()\n"); + status = inb_p(qp_status); + outb_p(status & ~(QP_ENABLE|QP_INTS_ON), qp_status); + if (!poll_qp_status()) + printk("Warning: Mouse device busy in release_qp()\n"); + free_irq(QP_IRQ, NULL); + MOD_DEC_USE_COUNT; + } + return 0; +} + /* * Install interrupt handler. * Enable the device, enable interrupts. @@ -462,71 +443,30 @@ static int open_qp(struct inode * inode, struct file * file) return -EBUSY; } - status = ps2_inb_p(qp_status); + status = inb_p(qp_status); status |= (QP_ENABLE|QP_RESET); - ps2_outb_p(status, qp_status); + outb_p(status, qp_status); status &= ~(QP_RESET); - ps2_outb_p(status, qp_status); + outb_p(status, qp_status); queue->head = queue->tail = 0; /* Flush input queue */ status |= QP_INTS_ON; - ps2_outb_p(status, qp_status); /* Enable interrupts */ + outb_p(status, qp_status); /* Enable interrupts */ while (!poll_qp_status()) { printk("Error: Mouse device busy in open_qp()\n"); qp_count--; status &= ~(QP_ENABLE|QP_INTS_ON); - ps2_outb_p(status, qp_status); + outb_p(status, qp_status); free_irq(QP_IRQ, NULL); return -EBUSY; } - ps2_outb_p(AUX_ENABLE_DEV, qp_data); /* Wake up mouse */ + outb_p(AUX_ENABLE_DEV, qp_data); /* Wake up mouse */ MOD_INC_USE_COUNT; return 0; } -#endif - -/* - * Write to the aux device. - */ - -static long write_aux(struct inode * inode, struct file * file, - const char * buffer, unsigned long count) -{ - int retval = 0; - - if (count) { - int written = 0; - - /* disable kbd bh to avoid mixing of cmd bytes */ - disable_bh(KEYBOARD_BH); - - do { - char c; - if (!poll_aux_status()) - break; - ps2_outb_p(AUX_MAGIC_WRITE,AUX_COMMAND); - if (!poll_aux_status()) - break; - get_user(c, buffer++); - ps2_outb_p(c, AUX_OUTPUT_PORT); - written++; - } while (--count); - /* reenable kbd bh */ - enable_bh(KEYBOARD_BH); - retval = -EIO; - if (written) { - retval = written; - inode->i_mtime = CURRENT_TIME; - } - } - - return retval; -} - -#ifdef CONFIG_82C710_MOUSE /* * Write to the 82C710 mouse device. */ @@ -541,13 +481,69 @@ static long write_qp(struct inode * inode, struct file * file, if (!poll_qp_status()) return -EIO; get_user(c, buffer++); - ps2_outb_p(c, qp_data); + outb_p(c, qp_data); } inode->i_mtime = CURRENT_TIME; return count; } + +/* + * Wait for device to send output char and flush any input char. + */ + +static int poll_qp_status(void) +{ + int retries=0; + + while ((inb(qp_status)&(QP_RX_FULL|QP_TX_IDLE|QP_DEV_IDLE)) + != (QP_DEV_IDLE|QP_TX_IDLE) + && retries < MAX_RETRIES) { + + if (inb_p(qp_status)&(QP_RX_FULL)) + inb_p(qp_data); + current->state = TASK_INTERRUPTIBLE; + current->timeout = jiffies + (5*HZ + 99) / 100; + schedule(); + retries++; + } + return !(retries==MAX_RETRIES); +} + +/* + * Function to read register in 82C710. + */ + +static inline unsigned char read_710(unsigned char index) +{ + outb_p(index, 0x390); /* Write index */ + return inb_p(0x391); /* Read the data */ +} + +/* + * See if we can find a 82C710 device. Read mouse address. + */ + +__initfunc(static int probe_qp(void)) +{ + outb_p(0x55, 0x2fa); /* Any value except 9, ff or 36 */ + outb_p(0xaa, 0x3fa); /* Inverse of 55 */ + outb_p(0x36, 0x3fa); /* Address the chip */ + outb_p(0xe4, 0x3fa); /* 390/4; 390 = config address */ + outb_p(0x1b, 0x2fa); /* Inverse of e4 */ + if (read_710(0x0f) != 0xe4) /* Config address found? */ + return 0; /* No: no 82C710 here */ + qp_data = read_710(0x0d)*4; /* Get mouse I/O address */ + qp_status = qp_data+1; + outb_p(0x0f, 0x390); + outb_p(0x0f, 0x391); /* Close config mode */ + return 1; +} + #endif +/* + * Generic part continues... + */ /* * Put bytes from input queue to buffer. @@ -588,7 +584,6 @@ repeat: return 0; } - static unsigned int aux_poll(struct file *file, poll_table * wait) { poll_wait(&queue->proc_list, wait); @@ -597,7 +592,6 @@ static unsigned int aux_poll(struct file *file, poll_table * wait) return 0; } - struct file_operations psaux_fops = { NULL, /* seek */ read_aux, @@ -612,7 +606,6 @@ struct file_operations psaux_fops = { fasync_aux, }; - /* * Initialize driver. First check for a 82C710 chip; if found * forget about the Aux port and use the *_qp functions. @@ -643,7 +636,7 @@ __initfunc(int psaux_init(void)) printk(KERN_INFO "PS/2 auxiliary pointing device detected -- driver installed.\n"); aux_present = 1; #ifdef CONFIG_VT - kbd_read_mask = AUX_OBUF_FULL; + kbd_read_mask = AUX_STAT_OBF; #endif } else { return -EIO; @@ -654,8 +647,8 @@ __initfunc(int psaux_init(void)) queue->head = queue->tail = 0; queue->proc_list = NULL; if (!qp_found) { -#if defined INITIALIZE_DEVICE - ps2_outb_p(AUX_ENABLE,AUX_COMMAND); /* Enable Aux */ +#ifdef INITIALIZE_DEVICE + kbd_write_command(AUX_ENABLE); /* Enable Aux */ aux_write_ack(AUX_SET_SAMPLE); aux_write_ack(100); /* 100 samples/sec */ aux_write_ack(AUX_SET_RES); @@ -663,11 +656,11 @@ __initfunc(int psaux_init(void)) aux_write_ack(AUX_SET_SCALE21); /* 2:1 scaling */ poll_aux_status_nosleep(); #endif /* INITIALIZE_DEVICE */ - ps2_outb_p(KBD_CCMD_MOUSE_DISABLE, AUX_COMMAND); /* Disable Aux device */ - poll_aux_status_nosleep(); - ps2_outb_p(KBD_CCMD_WRITE_MODE, AUX_COMMAND); + kbd_write_command(KBD_CCMD_MOUSE_DISABLE); /* Disable Aux device */ poll_aux_status_nosleep(); - ps2_outb_p(AUX_INTS_OFF, AUX_OUTPUT_PORT); + kbd_write_command(KBD_CCMD_WRITE_MODE); + poll_aux_status_nosleep(); /* Disable interrupts */ + kbd_write_output(AUX_INTS_OFF); /* on the controller */ } return 0; } @@ -675,7 +668,7 @@ __initfunc(int psaux_init(void)) #ifdef MODULE int init_module(void) { - return psaux_init(); /*?? Bjorn */ + return psaux_init(); } void cleanup_module(void) @@ -684,84 +677,3 @@ void cleanup_module(void) kfree(queue); } #endif - -static int poll_aux_status(void) -{ - int retries=0; - - while ((ps2_inb(AUX_STATUS)&0x03) && retries < MAX_RETRIES) { - if ((ps2_inb_p(AUX_STATUS) & AUX_OBUF_FULL) == AUX_OBUF_FULL) - ps2_inb_p(AUX_INPUT_PORT); - current->state = TASK_INTERRUPTIBLE; - current->timeout = jiffies + (5*HZ + 99) / 100; - schedule(); - retries++; - } - return !(retries==MAX_RETRIES); -} - -static int poll_aux_status_nosleep(void) -{ - int retries = 0; - - while ((ps2_inb(AUX_STATUS)&0x03) && retries < 1000000) { - if ((ps2_inb_p(AUX_STATUS) & AUX_OBUF_FULL) == AUX_OBUF_FULL) - ps2_inb_p(AUX_INPUT_PORT); - retries++; - } - return !(retries == 1000000); -} - -#ifdef CONFIG_82C710_MOUSE -/* - * Wait for device to send output char and flush any input char. - */ - -static int poll_qp_status(void) -{ - int retries=0; - - while ((ps2_inb(qp_status)&(QP_RX_FULL|QP_TX_IDLE|QP_DEV_IDLE)) - != (QP_DEV_IDLE|QP_TX_IDLE) - && retries < MAX_RETRIES) { - - if (ps2_inb_p(qp_status)&(QP_RX_FULL)) - ps2_inb_p(qp_data); - current->state = TASK_INTERRUPTIBLE; - current->timeout = jiffies + (5*HZ + 99) / 100; - schedule(); - retries++; - } - return !(retries==MAX_RETRIES); -} - -/* - * Function to read register in 82C710. - */ - -static inline unsigned char read_710(unsigned char index) -{ - ps2_outb_p(index, 0x390); /* Write index */ - return ps2_inb_p(0x391); /* Read the data */ -} - -/* - * See if we can find a 82C710 device. Read mouse address. - */ - -__initfunc(static int probe_qp(void)) -{ - ps2_outb_p(0x55, 0x2fa); /* Any value except 9, ff or 36 */ - ps2_outb_p(0xaa, 0x3fa); /* Inverse of 55 */ - ps2_outb_p(0x36, 0x3fa); /* Address the chip */ - ps2_outb_p(0xe4, 0x3fa); /* 390/4; 390 = config address */ - ps2_outb_p(0x1b, 0x2fa); /* Inverse of e4 */ - if (read_710(0x0f) != 0xe4) /* Config address found? */ - return 0; /* No: no 82C710 here */ - qp_data = read_710(0x0d)*4; /* Get mouse I/O address */ - qp_status = qp_data+1; - ps2_outb_p(0x0f, 0x390); - ps2_outb_p(0x0f, 0x391); /* Close config mode */ - return 1; -} -#endif |