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path: root/drivers/media/pci/smipcie/smipcie-ir.c
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Diffstat (limited to 'drivers/media/pci/smipcie/smipcie-ir.c')
-rw-r--r--drivers/media/pci/smipcie/smipcie-ir.c132
1 files changed, 45 insertions, 87 deletions
diff --git a/drivers/media/pci/smipcie/smipcie-ir.c b/drivers/media/pci/smipcie/smipcie-ir.c
index c5595af6b976..d292cdfb3671 100644
--- a/drivers/media/pci/smipcie/smipcie-ir.c
+++ b/drivers/media/pci/smipcie/smipcie-ir.c
@@ -16,6 +16,9 @@
#include "smipcie.h"
+#define SMI_SAMPLE_PERIOD 83
+#define SMI_SAMPLE_IDLEMIN (10000 / SMI_SAMPLE_PERIOD)
+
static void smi_ir_enableInterrupt(struct smi_rc *ir)
{
struct smi_dev *dev = ir->dev;
@@ -42,114 +45,64 @@ static void smi_ir_stop(struct smi_rc *ir)
struct smi_dev *dev = ir->dev;
smi_ir_disableInterrupt(ir);
- smi_clear(IR_Init_Reg, 0x80);
+ smi_clear(IR_Init_Reg, rbIRen);
}
-#define BITS_PER_COMMAND 14
-#define GROUPS_PER_BIT 2
-#define IR_RC5_MIN_BIT 36
-#define IR_RC5_MAX_BIT 52
-static u32 smi_decode_rc5(u8 *pData, u8 size)
+static void smi_raw_process(struct rc_dev *rc_dev, const u8 *buffer,
+ const u8 length)
{
- u8 index, current_bit, bit_count;
- u8 group_array[BITS_PER_COMMAND * GROUPS_PER_BIT + 4];
- u8 group_index = 0;
- u32 command = 0xFFFFFFFF;
-
- group_array[group_index++] = 1;
-
- for (index = 0; index < size; index++) {
-
- current_bit = (pData[index] & 0x80) ? 1 : 0;
- bit_count = pData[index] & 0x7f;
-
- if ((current_bit == 1) && (bit_count >= 2*IR_RC5_MAX_BIT + 1)) {
- goto process_code;
- } else if ((bit_count >= IR_RC5_MIN_BIT) &&
- (bit_count <= IR_RC5_MAX_BIT)) {
- group_array[group_index++] = current_bit;
- } else if ((bit_count > IR_RC5_MAX_BIT) &&
- (bit_count <= 2*IR_RC5_MAX_BIT)) {
- group_array[group_index++] = current_bit;
- group_array[group_index++] = current_bit;
- } else {
- goto invalid_timing;
- }
- if (group_index >= BITS_PER_COMMAND*GROUPS_PER_BIT)
- goto process_code;
-
- if ((group_index == BITS_PER_COMMAND*GROUPS_PER_BIT - 1)
- && (group_array[group_index-1] == 0)) {
- group_array[group_index++] = 1;
- goto process_code;
- }
- }
-
-process_code:
- if (group_index == (BITS_PER_COMMAND*GROUPS_PER_BIT-1))
- group_array[group_index++] = 1;
-
- if (group_index == BITS_PER_COMMAND*GROUPS_PER_BIT) {
- command = 0;
- for (index = 0; index < (BITS_PER_COMMAND*GROUPS_PER_BIT);
- index = index + 2) {
- if ((group_array[index] == 1) &&
- (group_array[index+1] == 0)) {
- command |= (1 << (BITS_PER_COMMAND -
- (index/2) - 1));
- } else if ((group_array[index] == 0) &&
- (group_array[index+1] == 1)) {
- /* */
- } else {
- command = 0xFFFFFFFF;
- goto invalid_timing;
- }
+ struct ir_raw_event rawir = {};
+ int cnt;
+
+ for (cnt = 0; cnt < length; cnt++) {
+ if (buffer[cnt] & 0x7f) {
+ rawir.pulse = (buffer[cnt] & 0x80) == 0;
+ rawir.duration = ((buffer[cnt] & 0x7f) +
+ (rawir.pulse ? 0 : -1)) *
+ rc_dev->rx_resolution;
+ ir_raw_event_store_with_filter(rc_dev, &rawir);
}
}
-
-invalid_timing:
- return command;
}
-static void smi_ir_decode(struct work_struct *work)
+static void smi_ir_decode(struct smi_rc *ir)
{
- struct smi_rc *ir = container_of(work, struct smi_rc, work);
struct smi_dev *dev = ir->dev;
struct rc_dev *rc_dev = ir->rc_dev;
- u32 dwIRControl, dwIRData, dwIRCode, scancode;
- u8 index, ucIRCount, readLoop, rc5_command, rc5_system, toggle;
+ u32 dwIRControl, dwIRData;
+ u8 index, ucIRCount, readLoop;
dwIRControl = smi_read(IR_Init_Reg);
+
if (dwIRControl & rbIRVld) {
ucIRCount = (u8) smi_read(IR_Data_Cnt);
- if (ucIRCount < 4)
- goto end_ir_decode;
-
readLoop = ucIRCount/4;
if (ucIRCount % 4)
readLoop += 1;
for (index = 0; index < readLoop; index++) {
- dwIRData = smi_read(IR_DATA_BUFFER_BASE + (index*4));
+ dwIRData = smi_read(IR_DATA_BUFFER_BASE + (index * 4));
ir->irData[index*4 + 0] = (u8)(dwIRData);
ir->irData[index*4 + 1] = (u8)(dwIRData >> 8);
ir->irData[index*4 + 2] = (u8)(dwIRData >> 16);
ir->irData[index*4 + 3] = (u8)(dwIRData >> 24);
}
- dwIRCode = smi_decode_rc5(ir->irData, ucIRCount);
-
- if (dwIRCode != 0xFFFFFFFF) {
- rc5_command = dwIRCode & 0x3F;
- rc5_system = (dwIRCode & 0x7C0) >> 6;
- toggle = (dwIRCode & 0x800) ? 1 : 0;
- scancode = rc5_system << 8 | rc5_command;
- rc_keydown(rc_dev, RC_PROTO_RC5, scancode, toggle);
- }
+ smi_raw_process(rc_dev, ir->irData, ucIRCount);
+ smi_set(IR_Init_Reg, rbIRVld);
}
-end_ir_decode:
- smi_set(IR_Init_Reg, 0x04);
- smi_ir_enableInterrupt(ir);
+
+ if (dwIRControl & rbIRhighidle) {
+ struct ir_raw_event rawir = {};
+
+ rawir.pulse = 0;
+ rawir.duration = US_TO_NS(SMI_SAMPLE_PERIOD *
+ SMI_SAMPLE_IDLEMIN);
+ ir_raw_event_store_with_filter(rc_dev, &rawir);
+ smi_set(IR_Init_Reg, rbIRhighidle);
+ }
+
+ ir_raw_event_handle(rc_dev);
}
/* ir functions call by main driver.*/
@@ -160,7 +113,8 @@ int smi_ir_irq(struct smi_rc *ir, u32 int_status)
if (int_status & IR_X_INT) {
smi_ir_disableInterrupt(ir);
smi_ir_clearInterrupt(ir);
- schedule_work(&ir->work);
+ smi_ir_decode(ir);
+ smi_ir_enableInterrupt(ir);
handled = 1;
}
return handled;
@@ -170,9 +124,11 @@ void smi_ir_start(struct smi_rc *ir)
{
struct smi_dev *dev = ir->dev;
- smi_write(IR_Idle_Cnt_Low, 0x00140070);
+ smi_write(IR_Idle_Cnt_Low,
+ (((SMI_SAMPLE_PERIOD - 1) & 0xFFFF) << 16) |
+ (SMI_SAMPLE_IDLEMIN & 0xFFFF));
msleep(20);
- smi_set(IR_Init_Reg, 0x90);
+ smi_set(IR_Init_Reg, rbIRen | rbIRhighidle);
smi_ir_enableInterrupt(ir);
}
@@ -183,7 +139,7 @@ int smi_ir_init(struct smi_dev *dev)
struct rc_dev *rc_dev;
struct smi_rc *ir = &dev->ir;
- rc_dev = rc_allocate_device(RC_DRIVER_SCANCODE);
+ rc_dev = rc_allocate_device(RC_DRIVER_IR_RAW);
if (!rc_dev)
return -ENOMEM;
@@ -193,6 +149,7 @@ int smi_ir_init(struct smi_dev *dev)
snprintf(ir->input_phys, sizeof(ir->input_phys), "pci-%s/ir0",
pci_name(dev->pci_dev));
+ rc_dev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
rc_dev->driver_name = "SMI_PCIe";
rc_dev->input_phys = ir->input_phys;
rc_dev->device_name = ir->device_name;
@@ -203,11 +160,12 @@ int smi_ir_init(struct smi_dev *dev)
rc_dev->dev.parent = &dev->pci_dev->dev;
rc_dev->map_name = dev->info->rc_map;
+ rc_dev->timeout = MS_TO_NS(100);
+ rc_dev->rx_resolution = US_TO_NS(SMI_SAMPLE_PERIOD);
ir->rc_dev = rc_dev;
ir->dev = dev;
- INIT_WORK(&ir->work, smi_ir_decode);
smi_ir_disableInterrupt(ir);
ret = rc_register_device(rc_dev);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 23:59:13 +0300