104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
|
#include <linux/slab.h>
|
||
|
#include <linux/serio.h>
|
||
|
#include <linux/delay.h>
|
||
|
#include "nvec.h"
|
||
|
|
||
|
#define START_STREAMING {'\x06','\x03','\x01'}
|
||
|
#define STOP_STREAMING {'\x06','\x04'}
|
||
|
#define SEND_COMMAND {'\x06','\x01','\xf4','\x01'}
|
||
|
|
||
|
struct nvec_ps2
|
||
|
{
|
||
|
struct serio *ser_dev;
|
||
|
struct notifier_block notifier;
|
||
|
struct nvec_chip *nvec;
|
||
|
};
|
||
|
|
||
|
static struct nvec_ps2 ps2_dev;
|
||
|
|
||
|
static int ps2_startstreaming(struct serio *ser_dev)
|
||
|
{
|
||
|
unsigned char buf[] = START_STREAMING;
|
||
|
nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void ps2_stopstreaming(struct serio *ser_dev)
|
||
|
{
|
||
|
unsigned char buf[] = STOP_STREAMING;
|
||
|
nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
|
||
|
}
|
||
|
|
||
|
/* is this really needed?
|
||
|
static void nvec_resp_handler(unsigned char *data) {
|
||
|
serio_interrupt(ser_dev, data[4], 0);
|
||
|
}
|
||
|
*/
|
||
|
|
||
|
static int ps2_sendcommand(struct serio *ser_dev, unsigned char cmd)
|
||
|
{
|
||
|
unsigned char buf[] = SEND_COMMAND;
|
||
|
|
||
|
buf[2] = cmd & 0xff;
|
||
|
|
||
|
dev_dbg(&ser_dev->dev, "Sending ps2 cmd %02x\n", cmd);
|
||
|
nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int nvec_ps2_notifier(struct notifier_block *nb,
|
||
|
unsigned long event_type, void *data)
|
||
|
{
|
||
|
int i;
|
||
|
unsigned char *msg = (unsigned char *)data;
|
||
|
|
||
|
switch (event_type) {
|
||
|
case NVEC_PS2_EVT:
|
||
|
serio_interrupt(ps2_dev.ser_dev, msg[2], 0);
|
||
|
return NOTIFY_STOP;
|
||
|
|
||
|
case NVEC_PS2:
|
||
|
if (msg[2] == 1)
|
||
|
for(i = 0; i < (msg[1] - 2); i++)
|
||
|
serio_interrupt(ps2_dev.ser_dev, msg[i+4], 0);
|
||
|
else if (msg[1] != 2) /* !ack */
|
||
|
{
|
||
|
printk("nvec_ps2: unhandled mouse event ");
|
||
|
for(i = 0; i <= (msg[1]+1); i++)
|
||
|
printk("%02x ", msg[i]);
|
||
|
printk(".\n");
|
||
|
}
|
||
|
|
||
|
return NOTIFY_STOP;
|
||
|
}
|
||
|
|
||
|
return NOTIFY_DONE;
|
||
|
}
|
||
|
|
||
|
|
||
|
int __init nvec_ps2(struct nvec_chip *nvec)
|
||
|
{
|
||
|
struct serio *ser_dev = kzalloc(sizeof(struct serio), GFP_KERNEL);
|
||
|
|
||
|
ser_dev->id.type=SERIO_8042;
|
||
|
ser_dev->write=ps2_sendcommand;
|
||
|
ser_dev->open=ps2_startstreaming;
|
||
|
ser_dev->close=ps2_stopstreaming;
|
||
|
|
||
|
strlcpy(ser_dev->name, "NVEC PS2", sizeof(ser_dev->name));
|
||
|
strlcpy(ser_dev->phys, "NVEC I2C slave", sizeof(ser_dev->phys));
|
||
|
|
||
|
ps2_dev.ser_dev = ser_dev;
|
||
|
ps2_dev.notifier.notifier_call = nvec_ps2_notifier;
|
||
|
ps2_dev.nvec = nvec;
|
||
|
nvec_register_notifier(nvec, &ps2_dev.notifier, 0);
|
||
|
|
||
|
serio_register_port(ser_dev);
|
||
|
|
||
|
/* mouse reset */
|
||
|
nvec_write_async(nvec, "\x06\x01\xff\x03", 4);
|
||
|
|
||
|
return 0;
|
||
|
}
|