From a49a7a4635dea5b799a8f77e227ef5c648fa29ec Mon Sep 17 00:00:00 2001 From: Patrick Lerda Date: Wed, 23 Jan 2019 19:04:20 -0500 Subject: [PATCH] media: smipcie: add universal ir capability smipcie: switch to RC_DRIVER_IR_RAW. Signed-off-by: Patrick Lerda Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/smipcie/smipcie-ir.c | 130 +++++++++---------------- drivers/media/pci/smipcie/smipcie.h | 1 - 2 files changed, 44 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; + struct ir_raw_event rawir = {}; + int cnt; - 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; + 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); } } - -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; - } - } - } - -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); diff --git a/drivers/media/pci/smipcie/smipcie.h b/drivers/media/pci/smipcie/smipcie.h index a6c5b1bd7edb..e52229a87b84 100644 --- a/drivers/media/pci/smipcie/smipcie.h +++ b/drivers/media/pci/smipcie/smipcie.h @@ -241,7 +241,6 @@ struct smi_rc { struct rc_dev *rc_dev; char input_phys[64]; char device_name[64]; - struct work_struct work; u8 irData[256]; int users;