// SPDX-License-Identifier: GPL-2.0 /* * Driver for Amlogic Meson IR remote receiver * * Copyright (C) 2014 Beniamino Galvani <[email protected]> */ #include <linux/device.h> #include <linux/err.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/spinlock.h> #include <linux/bitfield.h> #include <linux/regmap.h> #include <media/rc-core.h> #define DRIVER_NAME … #define IR_DEC_LDR_ACTIVE … #define IR_DEC_LDR_ACTIVE_MAX … #define IR_DEC_LDR_ACTIVE_MIN … #define IR_DEC_LDR_IDLE … #define IR_DEC_LDR_IDLE_MAX … #define IR_DEC_LDR_IDLE_MIN … #define IR_DEC_LDR_REPEAT … #define IR_DEC_LDR_REPEAT_MAX … #define IR_DEC_LDR_REPEAT_MIN … #define IR_DEC_BIT_0 … #define IR_DEC_BIT_0_MAX … #define IR_DEC_BIT_0_MIN … #define IR_DEC_REG0 … #define IR_DEC_REG0_FILTER … #define IR_DEC_REG0_FRAME_TIME_MAX … #define IR_DEC_REG0_BASE_TIME … #define IR_DEC_FRAME … #define IR_DEC_STATUS … #define IR_DEC_STATUS_BIT_1_ENABLE … #define IR_DEC_STATUS_BIT_1_MAX … #define IR_DEC_STATUS_BIT_1_MIN … #define IR_DEC_STATUS_PULSE … #define IR_DEC_STATUS_BUSY … #define IR_DEC_STATUS_FRAME_STATUS … #define IR_DEC_REG1 … #define IR_DEC_REG1_TIME_IV … #define IR_DEC_REG1_FRAME_LEN … #define IR_DEC_REG1_ENABLE … #define IR_DEC_REG1_HOLD_CODE … #define IR_DEC_REG1_IRQSEL … #define IR_DEC_REG1_RESET … /* Meson 6b uses REG1 to configure IR mode */ #define IR_DEC_REG1_MODE … /* The following registers are only available on Meson 8b and newer */ #define IR_DEC_REG2 … #define IR_DEC_REG2_TICK_MODE … #define IR_DEC_REG2_REPEAT_COUNTER … #define IR_DEC_REG2_REPEAT_TIME … #define IR_DEC_REG2_COMPARE_FRAME … #define IR_DEC_REG2_BIT_ORDER … /* Meson 8b / GXBB use REG2 to configure IR mode */ #define IR_DEC_REG2_MODE … #define IR_DEC_DURATN2 … #define IR_DEC_DURATN2_MAX … #define IR_DEC_DURATN2_MIN … #define IR_DEC_DURATN3 … #define IR_DEC_DURATN3_MAX … #define IR_DEC_DURATN3_MIN … #define IR_DEC_FRAME1 … #define FRAME_MSB_FIRST … #define FRAME_LSB_FIRST … #define DEC_MODE_NEC … #define DEC_MODE_RAW … #define DEC_MODE_RC6 … #define DEC_MODE_XMP … #define DEC_MODE_UNKNOW … #define DEC_STATUS_VALID … #define DEC_STATUS_DATA_CODE_ERR … #define DEC_STATUS_CUSTOM_CODE_ERR … #define DEC_STATUS_REPEAT … #define IRQSEL_DEC_MODE … #define IRQSEL_RISE_FALL … #define IRQSEL_FALL … #define IRQSEL_RISE … #define MESON_RAW_TRATE … #define MESON_HW_TRATE … /** * struct meson_ir_protocol - describe IR Protocol parameter * * @hw_protocol: select IR Protocol from IR Controller * @repeat_counter_enable: enable frame-to-frame time counter, it should work * with @repeat_compare_enable to detect the repeat frame * @repeat_check_enable: enable repeat time check for repeat detection * @repeat_compare_enable: enable to compare frame for repeat frame detection. * Some IR Protocol send the same data as repeat frame. * In this case, it should work with * @repeat_counter_enable to detect the repeat frame. * @bit_order: bit order, LSB or MSB * @bit1_match_enable: enable to check bit 1 * @hold_code_enable: hold frame code in register IR_DEC_FRAME1, the new one * frame code will not be store in IR_DEC_FRAME1. * until IR_DEC_FRAME1 has been read * @count_tick_mode: increasing time unit of frame-to-frame time counter. * 0 = 100us, 1 = 10us * @code_length: length (N-1) of data frame * @frame_time_max: max time for whole frame. Unit: MESON_HW_TRATE * @leader_active_max: max time for NEC/RC6 leader active part. Unit: MESON_HW_TRATE * @leader_active_min: min time for NEC/RC6 leader active part. Unit: MESON_HW_TRATE * @leader_idle_max: max time for NEC/RC6 leader idle part. Unit: MESON_HW_TRATE * @leader_idle_min: min time for NEC/RC6 leader idle part. Unit: MESON_HW_TRATE * @repeat_leader_max: max time for NEC repeat leader idle part. Unit: MESON_HW_TRATE * @repeat_leader_min: min time for NEC repeat leader idle part. Unit: MESON_HW_TRATE * @bit0_max: max time for NEC Logic '0', half of RC6 trailer bit, XMP Logic '00' * @bit0_min: min time for NEC Logic '0', half of RC6 trailer bit, XMP Logic '00' * @bit1_max: max time for NEC Logic '1', whole of RC6 trailer bit, XMP Logic '01' * @bit1_min: min time for NEC Logic '1', whole of RC6 trailer bit, XMP Logic '01' * @duration2_max: max time for half of RC6 normal bit, XMP Logic '10' * @duration2_min: min time for half of RC6 normal bit, XMP Logic '10' * @duration3_max: max time for whole of RC6 normal bit, XMP Logic '11' * @duration3_min: min time for whole of RC6 normal bit, XMP Logic '11' */ struct meson_ir_protocol { … }; struct meson_ir_param { … }; struct meson_ir { … }; static struct regmap_config meson_ir_regmap_config = …; static const struct meson_ir_protocol protocol_timings[] = …; static void meson_ir_nec_handler(struct meson_ir *ir) { … } static void meson_ir_hw_handler(struct meson_ir *ir) { … } static irqreturn_t meson_ir_irq(int irqno, void *dev_id) { … } static int meson_ir_hw_decoder_init(struct rc_dev *dev, u64 *rc_type) { … } static void meson_ir_sw_decoder_init(struct rc_dev *dev) { … } static int meson_ir_probe(struct platform_device *pdev) { … } static void meson_ir_remove(struct platform_device *pdev) { … } static void meson_ir_shutdown(struct platform_device *pdev) { … } static __maybe_unused int meson_ir_resume(struct device *dev) { … } static __maybe_unused int meson_ir_suspend(struct device *dev) { … } static SIMPLE_DEV_PM_OPS(meson_ir_pm_ops, meson_ir_suspend, meson_ir_resume); static const struct meson_ir_param meson6_ir_param = …; static const struct meson_ir_param meson8b_ir_param = …; static const struct meson_ir_param meson_s4_ir_param = …; static const struct of_device_id meson_ir_match[] = …; MODULE_DEVICE_TABLE(of, meson_ir_match); static struct platform_driver meson_ir_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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