}
EXPORT_SYMBOL_GPL(ir_extract_bits);
-static int inline getbit(u32 *samples, int bit)
-{
- return (samples[bit/32] & (1 << (31-(bit%32)))) ? 1 : 0;
-}
-
-/* sump raw samples for visual debugging ;) */
-int ir_dump_samples(u32 *samples, int count)
-{
- int i, bit, start;
-
- printk(KERN_DEBUG "ir samples: ");
- start = 0;
- for (i = 0; i < count * 32; i++) {
- bit = getbit(samples,i);
- if (bit)
- start = 1;
- if (0 == start)
- continue;
- printk("%s", bit ? "#" : "_");
- }
- printk("\n");
- return 0;
-}
-EXPORT_SYMBOL_GPL(ir_dump_samples);
-
-/* decode raw samples, pulse distance coding used by NEC remotes */
-int ir_decode_pulsedistance(u32 *samples, int count, int low, int high)
-{
- int i,last,bit,len;
- u32 curBit;
- u32 value;
-
- /* find start burst */
- for (i = len = 0; i < count * 32; i++) {
- bit = getbit(samples,i);
- if (bit) {
- len++;
- } else {
- if (len >= 29)
- break;
- len = 0;
- }
- }
-
- /* start burst to short */
- if (len < 29)
- return 0xffffffff;
-
- /* find start silence */
- for (len = 0; i < count * 32; i++) {
- bit = getbit(samples,i);
- if (bit) {
- break;
- } else {
- len++;
- }
- }
-
- /* silence to short */
- if (len < 7)
- return 0xffffffff;
-
- /* go decoding */
- len = 0;
- last = 1;
- value = 0; curBit = 1;
- for (; i < count * 32; i++) {
- bit = getbit(samples,i);
- if (last) {
- if(bit) {
- continue;
- } else {
- len = 1;
- }
- } else {
- if (bit) {
- if (len > (low + high) /2)
- value |= curBit;
- curBit <<= 1;
- if (curBit == 1)
- break;
- } else {
- len++;
- }
- }
- last = bit;
- }
-
- return value;
-}
-EXPORT_SYMBOL_GPL(ir_decode_pulsedistance);
-
-/* decode raw samples, biphase coding, used by rc5 for example */
-int ir_decode_biphase(u32 *samples, int count, int low, int high)
-{
- int i,last,bit,len,flips;
- u32 value;
-
- /* find start bit (1) */
- for (i = 0; i < 32; i++) {
- bit = getbit(samples,i);
- if (bit)
- break;
- }
-
- /* go decoding */
- len = 0;
- flips = 0;
- value = 1;
- for (; i < count * 32; i++) {
- if (len > high)
- break;
- if (flips > 1)
- break;
- last = bit;
- bit = getbit(samples,i);
- if (last == bit) {
- len++;
- continue;
- }
- if (len < low) {
- len++;
- flips++;
- continue;
- }
- value <<= 1;
- value |= bit;
- flips = 0;
- len = 1;
- }
- return value;
-}
-EXPORT_SYMBOL_GPL(ir_decode_biphase);
-
/* RC5 decoding stuff, moved from bttv-input.c to share it with
* saa7134 */
struct cx88_core *core;
struct input_dev *input;
struct ir_dev_props props;
- u64 ir_type;
int users;
/* sample from gpio pin 16 */
u32 sampling;
- u32 samples[16];
- int scount;
/* poll external decoder */
int polling;
u32 mask_keyup;
};
+static unsigned ir_samplerate = 4;
+module_param(ir_samplerate, uint, 0444);
+MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4");
+
static int ir_debug;
module_param(ir_debug, int, 0644); /* debug level [IR] */
MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
}
if (ir->sampling) {
core->pci_irqmask |= PCI_INT_IR_SMPINT;
- cx_write(MO_DDS_IO, 0xa80a80); /* 4 kHz sample rate */
- cx_write(MO_DDSCFG_IO, 0x5); /* enable */
+ cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate); /* samplerate */
+ cx_write(MO_DDSCFG_IO, 0x5); /* enable */
}
return 0;
}
break;
case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
ir_codes = RC_MAP_CINERGY_1400;
- ir_type = IR_TYPE_NEC;
ir->sampling = 0xeb04; /* address */
break;
case CX88_BOARD_HAUPPAUGE:
case CX88_BOARD_PCHDTV_HD5500:
case CX88_BOARD_HAUPPAUGE_IRONLY:
ir_codes = RC_MAP_HAUPPAUGE_NEW;
- ir_type = IR_TYPE_RC5;
ir->sampling = 1;
break;
case CX88_BOARD_WINFAST_DTV2000H:
case CX88_BOARD_PROF_7301:
case CX88_BOARD_PROF_6200:
ir_codes = RC_MAP_TBS_NEC;
- ir_type = IR_TYPE_NEC;
ir->sampling = 0xff00; /* address */
break;
case CX88_BOARD_TEVII_S460:
case CX88_BOARD_TEVII_S420:
ir_codes = RC_MAP_TEVII_NEC;
- ir_type = IR_TYPE_NEC;
ir->sampling = 0xff00; /* address */
break;
case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
ir_codes = RC_MAP_DNTV_LIVE_DVBT_PRO;
- ir_type = IR_TYPE_NEC;
ir->sampling = 0xff00; /* address */
break;
case CX88_BOARD_NORWOOD_MICRO:
break;
case CX88_BOARD_PINNACLE_PCTV_HD_800i:
ir_codes = RC_MAP_PINNACLE_PCTV_HD;
- ir_type = IR_TYPE_RC5;
ir->sampling = 1;
break;
case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
break;
}
- if (NULL == ir_codes) {
+ if (!ir_codes) {
err = -ENODEV;
goto err_out_free;
}
snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
- ir->ir_type = ir_type;
-
input_dev->name = ir->name;
input_dev->phys = ir->phys;
input_dev->id.bustype = BUS_PCI;
ir->core = core;
core->ir = ir;
+ if (ir->sampling) {
+ ir_type = IR_TYPE_ALL;
+ ir->props.driver_type = RC_DRIVER_IR_RAW;
+ ir->props.timeout = 10 * 1000 * 1000; /* 10 ms */
+ } else
+ ir->props.driver_type = RC_DRIVER_SCANCODE;
+
ir->props.priv = core;
ir->props.open = cx88_ir_open;
ir->props.close = cx88_ir_close;
ir->props.scanmask = hardware_mask;
+ ir->props.allowed_protos = ir_type;
/* all done */
err = ir_input_register(ir->input, ir_codes, &ir->props, MODULE_NAME);
void cx88_ir_irq(struct cx88_core *core)
{
struct cx88_IR *ir = core->ir;
- u32 samples, ircode;
- int i, start, range, toggle, dev, code;
+ u32 samples;
+ unsigned todo, bits;
+ struct ir_raw_event ev;
+ struct ir_input_dev *irdev;
- if (NULL == ir)
- return;
- if (!ir->sampling)
+ if (!ir || !ir->sampling)
return;
+ /*
+ * Samples are stored in a 32 bit register, oldest sample in
+ * the msb. A set bit represents space and an unset bit
+ * represents a pulse.
+ */
samples = cx_read(MO_SAMPLE_IO);
- if (0 != samples && 0xffffffff != samples) {
- /* record sample data */
- if (ir->scount < ARRAY_SIZE(ir->samples))
- ir->samples[ir->scount++] = samples;
- return;
- }
- if (!ir->scount) {
- /* nothing to sample */
- return;
- }
-
- /* have a complete sample */
- if (ir->scount < ARRAY_SIZE(ir->samples))
- ir->samples[ir->scount++] = samples;
- for (i = 0; i < ir->scount; i++)
- ir->samples[i] = ~ir->samples[i];
- if (ir_debug)
- ir_dump_samples(ir->samples, ir->scount);
-
- /* decode it */
- switch (core->boardnr) {
- case CX88_BOARD_TEVII_S460:
- case CX88_BOARD_TEVII_S420:
- case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
- case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
- case CX88_BOARD_OMICOM_SS4_PCI:
- case CX88_BOARD_SATTRADE_ST4200:
- case CX88_BOARD_TBS_8920:
- case CX88_BOARD_TBS_8910:
- case CX88_BOARD_PROF_7300:
- case CX88_BOARD_PROF_7301:
- case CX88_BOARD_PROF_6200:
- case CX88_BOARD_TWINHAN_VP1027_DVBS:
- ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);
-
- if (ircode == 0xffffffff) { /* decoding error */
- ir_dprintk("pulse distance decoding error\n");
- break;
- }
-
- ir_dprintk("pulse distance decoded: %x\n", ircode);
+ irdev = input_get_drvdata(ir->input);
- if (ircode == 0) { /* key still pressed */
- ir_dprintk("pulse distance decoded repeat code\n");
- ir_repeat(ir->input);
- break;
- }
-
- if ((ircode & 0xffff) != (ir->sampling & 0xffff)) { /* wrong address */
- ir_dprintk("pulse distance decoded wrong address\n");
- break;
- }
-
- if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
- ir_dprintk("pulse distance decoded wrong check sum\n");
- break;
- }
+ if (samples == 0xff && irdev->idle)
+ return;
- ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0xff);
- ir_keydown(ir->input, (ircode >> 16) & 0xff, 0);
- break;
- case CX88_BOARD_HAUPPAUGE:
- case CX88_BOARD_HAUPPAUGE_DVB_T1:
- case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
- case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
- case CX88_BOARD_HAUPPAUGE_HVR1100:
- case CX88_BOARD_HAUPPAUGE_HVR3000:
- case CX88_BOARD_HAUPPAUGE_HVR4000:
- case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
- case CX88_BOARD_PCHDTV_HD3000:
- case CX88_BOARD_PCHDTV_HD5500:
- case CX88_BOARD_HAUPPAUGE_IRONLY:
- ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
- ir_dprintk("biphase decoded: %x\n", ircode);
- /*
- * RC5 has an extension bit which adds a new range
- * of available codes, this is detected here. Also
- * hauppauge remotes (black/silver) always use
- * specific device ids. If we do not filter the
- * device ids then messages destined for devices
- * such as TVs (id=0) will get through to the
- * device causing mis-fired events.
- */
- /* split rc5 data block ... */
- start = (ircode & 0x2000) >> 13;
- range = (ircode & 0x1000) >> 12;
- toggle= (ircode & 0x0800) >> 11;
- dev = (ircode & 0x07c0) >> 6;
- code = (ircode & 0x003f) | ((range << 6) ^ 0x0040);
- if( start != 1)
- /* no key pressed */
- break;
- if ( dev != 0x1e && dev != 0x1f )
- /* not a hauppauge remote */
- break;
- ir_keydown(ir->input, code, toggle);
- break;
- case CX88_BOARD_PINNACLE_PCTV_HD_800i:
- ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
- ir_dprintk("biphase decoded: %x\n", ircode);
- if ((ircode & 0xfffff000) != 0x3000)
- break;
- /* Note: bit 0x800 being the toggle is assumed, not checked
- with real hardware */
- ir_keydown(ir->input, ircode & 0x3f, ircode & 0x0800 ? 1 : 0);
- break;
+ init_ir_raw_event(&ev);
+ for (todo = 32; todo > 0; todo -= bits) {
+ ev.pulse = samples & 0x80000000 ? false : true;
+ bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples));
+ ev.duration = (bits * NSEC_PER_SEC) / (1000 * ir_samplerate);
+ ir_raw_event_store_with_filter(ir->input, &ev);
+ samples <<= bits;
}
-
- ir->scount = 0;
- return;
+ ir_raw_event_handle(ir->input);
}
-
void cx88_i2c_init_ir(struct cx88_core *core)
{
struct i2c_board_info info;
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