static void tm6000_ir_int_work(struct work_struct *work)
{
struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work);
struct tm6000_core *dev = ir->dev;
int rc;
dprintk(3, "%s, submit_urb = %d, pwled = %d\n",__func__, ir->submit_urb,
ir->pwled);
if (ir->submit_urb) {
dprintk(3, "Resubmit urb\n");
tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 0);
rc = usb_submit_urb(ir->int_urb, GFP_ATOMIC);
if (rc < 0) {
printk(KERN_ERR "tm6000: Can't submit an IR interrupt. Error %i\n",
rc);
/* Retry in 100 ms */
schedule_delayed_work(&ir->work, msecs_to_jiffies(URB_SUBMIT_DELAY));
return;
}
ir->submit_urb = 0;
}
/* Led is enabled only if USB submit doesn't fail */
if (ir->pwled == 2) {
tm6000_flash_led(dev, 0);
ir->pwled = 0;
schedule_delayed_work(&ir->work, msecs_to_jiffies(URB_INT_LED_DELAY));
} else if (!ir->pwled) {
tm6000_flash_led(dev, 1);
ir->pwled = 1;
}
}
static void tm6000_ir_handle_key(struct work_struct *work)
{
struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work);
struct tm6000_core *dev = ir->dev;
int rc;
u8 buf[2];
if (ir->wait)
return;
dprintk(3, "%s\n",__func__);
rc = tm6000_read_write_usb(dev, USB_DIR_IN |
USB_TYPE_VENDOR | USB_RECIP_DEVICE,
REQ_02_GET_IR_CODE, 0, 0, buf, 2);
if (rc < 0)
return;
/* Check if something was read */
if ((buf[0] & 0xff) == 0xff) {
if (!ir->pwled) {
tm6000_flash_led(dev, 1);
ir->pwled = 1;
}
return;
}
tm6000_ir_keydown(ir, buf, rc);
tm6000_flash_led(dev, 0);
ir->pwled = 0;
/* Re-schedule polling */
schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
}
int tm6000_ir_fini(struct tm6000_core *dev)
{
struct tm6000_IR *ir = dev->ir;
/* skip detach on non attached board */
if (!ir)
return 0;
dprintk(2, "%s\n",__func__);
if (!ir->polling)
__tm6000_ir_int_stop(ir->rc);
tm6000_ir_stop(ir->rc);
/* Turn off the led */
tm6000_flash_led(dev, 0);
ir->pwled = 0;
rc_unregister_device(ir->rc);
kfree(ir);
dev->ir = NULL;
return 0;
}
static void tm6000_ir_handle_key(struct work_struct *work)
{
struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work);
struct tm6000_core *dev = ir->dev;
struct tm6000_ir_poll_result poll_result;
int rc;
u8 buf[2];
if (ir->wait)
return;
dprintk(3, "%s\n",__func__);
rc = tm6000_read_write_usb(dev, USB_DIR_IN |
USB_TYPE_VENDOR | USB_RECIP_DEVICE,
REQ_02_GET_IR_CODE, 0, 0, buf, 2);
if (rc < 0)
return;
if (rc > 1)
poll_result.rc_data = buf[0] | buf[1] << 8;
else
poll_result.rc_data = buf[0];
/* Check if something was read */
if ((poll_result.rc_data & 0xff) == 0xff) {
if (!ir->pwled) {
tm6000_flash_led(dev, 1);
ir->pwled = 1;
}
return;
}
dprintk(1, "%s, scancode: 0x%04x\n",__func__, poll_result.rc_data);
rc_keydown(ir->rc, poll_result.rc_data, 0);
tm6000_flash_led(dev, 0);
ir->pwled = 0;
/* Re-schedule polling */
schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
}
static int tm6000_ir_config(struct tm6000_IR *ir)
{
struct tm6000_core *dev = ir->dev;
u32 pulse = 0, leader = 0;
dprintk(2, "%s\n",__func__);
/*
* The IR decoder supports RC-5 or NEC, with a configurable timing.
* The timing configuration there is not that accurate, as it uses
* approximate values. The NEC spec mentions a 562.5 unit period,
* and RC-5 uses a 888.8 period.
* Currently, driver assumes a clock provided by a 12 MHz XTAL, but
* a modprobe parameter can adjust it.
* Adjustments are required for other timings.
* It seems that the 900ms timing for NEC is used to detect a RC-5
* IR, in order to discard such decoding
*/
switch (ir->rc_type) {
case RC_BIT_NEC:
leader = 900; /* ms */
pulse = 700; /* ms - the actual value would be 562 */
break;
default:
case RC_BIT_RC5:
leader = 900; /* ms - from the NEC decoding */
pulse = 1780; /* ms - The actual value would be 1776 */
break;
}
pulse = ir_clock_mhz * pulse;
leader = ir_clock_mhz * leader;
if (ir->rc_type == RC_BIT_NEC)
leader = leader | 0x8000;
dprintk(2, "%s: %s, %d MHz, leader = 0x%04x, pulse = 0x%06x \n",
__func__,
(ir->rc_type == RC_BIT_NEC) ? "NEC" : "RC-5",
ir_clock_mhz, leader, pulse);
/* Remote WAKEUP = enable, normal mode, from IR decoder output */
tm6000_set_reg(dev, TM6010_REQ07_RE5_REMOTE_WAKEUP, 0xfe);
/* Enable IR reception on non-busrt mode */
tm6000_set_reg(dev, TM6010_REQ07_RD8_IR, 0x2f);
/* IR_WKUP_SEL = Low byte in decoded IR data */
tm6000_set_reg(dev, TM6010_REQ07_RDA_IR_WAKEUP_SEL, 0xff);
/* IR_WKU_ADD code */
tm6000_set_reg(dev, TM6010_REQ07_RDB_IR_WAKEUP_ADD, 0xff);
tm6000_set_reg(dev, TM6010_REQ07_RDC_IR_LEADER1, leader >> 8);
tm6000_set_reg(dev, TM6010_REQ07_RDD_IR_LEADER0, leader);
tm6000_set_reg(dev, TM6010_REQ07_RDE_IR_PULSE_CNT1, pulse >> 8);
tm6000_set_reg(dev, TM6010_REQ07_RDF_IR_PULSE_CNT0, pulse);
if (!ir->polling)
tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 0);
else
tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 1);
msleep(10);
/* Shows that IR is working via the LED */
tm6000_flash_led(dev, 0);
msleep(100);
tm6000_flash_led(dev, 1);
ir->pwled = 1;
return 0;
}