ported from the manufacturer's source tree, available from http://dvbsky.net/download/linux/media_build-bst-150211.tar.gz This is the second patch after a public review. Acked-by: Nibble Max <nibble.max@xxxxxxxxx> Reviewd-by: Nibble Max <nibble.max@xxxxxxxxx> Signed-off-by: Dirk Nehring <dnehring@xxxxxxx> --- drivers/media/pci/smipcie/Kconfig | 1 + drivers/media/pci/smipcie/Makefile | 3 + drivers/media/pci/smipcie/smipcie-ir.c | 232 +++++++++++++++++++++ .../pci/smipcie/{smipcie.c => smipcie-main.c} | 14 +- drivers/media/pci/smipcie/smipcie.h | 19 ++ 5 files changed, 268 insertions(+), 1 deletion(-) create mode 100644 drivers/media/pci/smipcie/smipcie-ir.c rename drivers/media/pci/smipcie/{smipcie.c => smipcie-main.c} (99%) diff --git a/drivers/media/pci/smipcie/Kconfig b/drivers/media/pci/smipcie/Kconfig index 21a1583..c11c772 100644 --- a/drivers/media/pci/smipcie/Kconfig +++ b/drivers/media/pci/smipcie/Kconfig @@ -7,6 +7,7 @@ config DVB_SMIPCIE select DVB_TS2020 if MEDIA_SUBDRV_AUTOSELECT select MEDIA_TUNER_M88RS6000T if MEDIA_SUBDRV_AUTOSELECT select MEDIA_TUNER_SI2157 if MEDIA_SUBDRV_AUTOSELECT + depends on RC_CORE help Support for cards with SMI PCIe bridge: - DVBSky S950 V3 diff --git a/drivers/media/pci/smipcie/Makefile b/drivers/media/pci/smipcie/Makefile index be55481..013bc3f 100644 --- a/drivers/media/pci/smipcie/Makefile +++ b/drivers/media/pci/smipcie/Makefile @@ -1,3 +1,6 @@ + +smipcie-objs := smipcie-main.o smipcie-ir.o + obj-$(CONFIG_DVB_SMIPCIE) += smipcie.o ccflags-y += -Idrivers/media/tuners diff --git a/drivers/media/pci/smipcie/smipcie-ir.c b/drivers/media/pci/smipcie/smipcie-ir.c new file mode 100644 index 0000000..b8ea739 --- /dev/null +++ b/drivers/media/pci/smipcie/smipcie-ir.c @@ -0,0 +1,232 @@ +/* + * SMI PCIe driver for DVBSky cards. + * + * Copyright (C) 2014 Max nibble <nibble.max@xxxxxxxxx> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include "smipcie.h" + +static void smi_ir_enableInterrupt(struct smi_rc *ir) +{ + struct smi_dev *dev = ir->dev; + + smi_write(MSI_INT_ENA_SET, IR_X_INT); +} + +static void smi_ir_disableInterrupt(struct smi_rc *ir) +{ + struct smi_dev *dev = ir->dev; + + smi_write(MSI_INT_ENA_CLR, IR_X_INT); +} + +static void smi_ir_clearInterrupt(struct smi_rc *ir) +{ + struct smi_dev *dev = ir->dev; + + smi_write(MSI_INT_STATUS_CLR, IR_X_INT); +} + +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); +} + +#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) +{ + 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; + } + } + } + +invalid_timing: + return command; +} + +static void smi_ir_decode(struct work_struct *work) +{ + 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; + + 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)); + + 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_TYPE_RC5, scancode, toggle); + } + } +end_ir_decode: + smi_set(IR_Init_Reg, 0x04); + smi_ir_enableInterrupt(ir); +} + +/* ir functions call by main driver.*/ +int smi_ir_irq(struct smi_rc *ir, u32 int_status) +{ + int handled = 0; + + if (int_status & IR_X_INT) { + smi_ir_disableInterrupt(ir); + smi_ir_clearInterrupt(ir); + schedule_work(&ir->work); + handled = 1; + } + return handled; +} + +void smi_ir_start(struct smi_rc *ir) +{ + struct smi_dev *dev = ir->dev; + + smi_write(IR_Idle_Cnt_Low, 0x00140070); + msleep(20); + smi_set(IR_Init_Reg, 0x90); + + smi_ir_enableInterrupt(ir); +} + +int smi_ir_init(struct smi_dev *dev) +{ + int ret; + struct rc_dev *rc_dev; + struct smi_rc *ir = &dev->ir; + + rc_dev = rc_allocate_device(); + if (!rc_dev) + return -ENOMEM; + + /* init input device */ + snprintf(ir->input_name, sizeof(ir->input_name), "IR (%s)", + dev->info->name); + snprintf(ir->input_phys, sizeof(ir->input_phys), "pci-%s/ir0", + pci_name(dev->pci_dev)); + + rc_dev->driver_name = "SMI_PCIe"; + rc_dev->input_phys = ir->input_phys; + rc_dev->input_name = ir->input_name; + rc_dev->input_id.bustype = BUS_PCI; + rc_dev->input_id.version = 1; + rc_dev->input_id.vendor = dev->pci_dev->subsystem_vendor; + rc_dev->input_id.product = dev->pci_dev->subsystem_device; + rc_dev->dev.parent = &dev->pci_dev->dev; + + rc_dev->driver_type = RC_DRIVER_SCANCODE; + rc_dev->map_name = RC_MAP_DVBSKY; + + 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); + if (ret) + goto ir_err; + + return 0; +ir_err: + rc_free_device(rc_dev); + return ret; +} + +void smi_ir_exit(struct smi_dev *dev) +{ + struct smi_rc *ir = &dev->ir; + struct rc_dev *rc_dev = ir->rc_dev; + + smi_ir_stop(ir); + rc_unregister_device(rc_dev); + ir->rc_dev = NULL; +} diff --git a/drivers/media/pci/smipcie/smipcie.c b/drivers/media/pci/smipcie/smipcie-main.c similarity index 99% rename from drivers/media/pci/smipcie/smipcie.c rename to drivers/media/pci/smipcie/smipcie-main.c index 143fd78..b039a22 100644 --- a/drivers/media/pci/smipcie/smipcie.c +++ b/drivers/media/pci/smipcie/smipcie-main.c @@ -468,6 +468,7 @@ static irqreturn_t smi_irq_handler(int irq, void *dev_id) struct smi_dev *dev = dev_id; struct smi_port *port0 = &dev->ts_port[0]; struct smi_port *port1 = &dev->ts_port[1]; + struct smi_rc *ir = &dev->ir; int handled = 0; u32 intr_status = smi_read(MSI_INT_STATUS); @@ -480,6 +481,9 @@ static irqreturn_t smi_irq_handler(int irq, void *dev_id) if (dev->info->ts_1) handled += smi_port_irq(port1, intr_status); + /* ir interrupt.*/ + handled += smi_ir_irq(ir, intr_status); + return IRQ_RETVAL(handled); } @@ -993,6 +997,10 @@ static int smi_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err_del_port0_attach; } + ret = smi_ir_init(dev); + if (ret < 0) + goto err_del_port1_attach; + #ifdef CONFIG_PCI_MSI /* to do msi interrupt.???*/ if (pci_msi_enabled()) ret = pci_enable_msi(dev->pci_dev); @@ -1003,10 +1011,13 @@ static int smi_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = request_irq(dev->pci_dev->irq, smi_irq_handler, IRQF_SHARED, "SMI_PCIE", dev); if (ret < 0) - goto err_del_port1_attach; + goto err_del_ir; + smi_ir_start(&dev->ir); return 0; +err_del_ir: + smi_ir_exit(dev); err_del_port1_attach: if (dev->info->ts_1) smi_port_detach(&dev->ts_port[1]); @@ -1039,6 +1050,7 @@ static void smi_remove(struct pci_dev *pdev) if (dev->info->ts_0) smi_port_detach(&dev->ts_port[0]); + smi_ir_exit(dev); smi_i2c_exit(dev); iounmap(dev->lmmio); pci_set_drvdata(pdev, NULL); diff --git a/drivers/media/pci/smipcie/smipcie.h b/drivers/media/pci/smipcie/smipcie.h index 10cdf20..68cdda2 100644 --- a/drivers/media/pci/smipcie/smipcie.h +++ b/drivers/media/pci/smipcie/smipcie.h @@ -234,6 +234,17 @@ struct smi_cfg_info { int fe_1; }; +struct smi_rc { + struct smi_dev *dev; + struct rc_dev *rc_dev; + char input_phys[64]; + char input_name[64]; + struct work_struct work; + u8 irData[256]; + + int users; +}; + struct smi_port { struct smi_dev *dev; int idx; @@ -284,6 +295,9 @@ struct smi_dev { /* i2c */ struct i2c_adapter i2c_bus[2]; struct i2c_algo_bit_data i2c_bit[2]; + + /* ir */ + struct smi_rc ir; }; #define smi_read(reg) readl(dev->lmmio + ((reg)>>2)) @@ -296,4 +310,9 @@ struct smi_dev { #define smi_set(reg, bit) smi_andor((reg), (bit), (bit)) #define smi_clear(reg, bit) smi_andor((reg), (bit), 0) +int smi_ir_irq(struct smi_rc *ir, u32 int_status); +void smi_ir_start(struct smi_rc *ir); +void smi_ir_exit(struct smi_dev *dev); +int smi_ir_init(struct smi_dev *dev); + #endif /* #ifndef _SMI_PCIE_H_ */ -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
