// SPDX-License-Identifier: GPL-2.0 /* * Driver for the Texas Instruments DS90UB960-Q1 video deserializer * * Copyright (c) 2019 Luca Ceresoli <[email protected]> * Copyright (c) 2023 Tomi Valkeinen <[email protected]> */ /* * (Possible) TODOs: * * - PM for serializer and remote peripherals. We need to manage: * - VPOC * - Power domain? Regulator? Somehow any remote device should be able to * cause the VPOC to be turned on. * - Link between the deserializer and the serializer * - Related to VPOC management. We probably always want to turn on the VPOC * and then enable the link. * - Serializer's services: i2c, gpios, power * - The serializer needs to resume before the remote peripherals can * e.g. use the i2c. * - How to handle gpios? Reserving a gpio essentially keeps the provider * (serializer) always powered on. * - Do we need a new bus for the FPD-Link? At the moment the serializers * are children of the same i2c-adapter where the deserializer resides. * - i2c-atr could be made embeddable instead of allocatable. */ #include <linux/bitops.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/fwnode.h> #include <linux/gpio/consumer.h> #include <linux/i2c-atr.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/kthread.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/property.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <media/i2c/ds90ub9xx.h> #include <media/mipi-csi2.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> #define MHZ(v) … #define UB960_POLL_TIME_MS … #define UB960_MAX_RX_NPORTS … #define UB960_MAX_TX_NPORTS … #define UB960_MAX_NPORTS … #define UB960_MAX_PORT_ALIASES … #define UB960_NUM_BC_GPIOS … /* * Register map * * 0x00-0x32 Shared (UB960_SR) * 0x33-0x3a CSI-2 TX (per-port paged on DS90UB960, shared on 954) (UB960_TR) * 0x4c Shared (UB960_SR) * 0x4d-0x7f FPD-Link RX, per-port paged (UB960_RR) * 0xb0-0xbf Shared (UB960_SR) * 0xd0-0xdf FPD-Link RX, per-port paged (UB960_RR) * 0xf0-0xf5 Shared (UB960_SR) * 0xf8-0xfb Shared (UB960_SR) * All others Reserved * * Register prefixes: * UB960_SR_* = Shared register * UB960_RR_* = FPD-Link RX, per-port paged register * UB960_TR_* = CSI-2 TX, per-port paged register * UB960_XR_* = Reserved register * UB960_IR_* = Indirect register */ #define UB960_SR_I2C_DEV_ID … #define UB960_SR_RESET … #define UB960_SR_RESET_DIGITAL_RESET1 … #define UB960_SR_RESET_DIGITAL_RESET0 … #define UB960_SR_RESET_GPIO_LOCK_RELEASE … #define UB960_SR_GEN_CONFIG … #define UB960_SR_REV_MASK … #define UB960_SR_DEVICE_STS … #define UB960_SR_PAR_ERR_THOLD_HI … #define UB960_SR_PAR_ERR_THOLD_LO … #define UB960_SR_BCC_WDOG_CTL … #define UB960_SR_I2C_CTL1 … #define UB960_SR_I2C_CTL2 … #define UB960_SR_SCL_HIGH_TIME … #define UB960_SR_SCL_LOW_TIME … #define UB960_SR_RX_PORT_CTL … #define UB960_SR_IO_CTL … #define UB960_SR_GPIO_PIN_STS … #define UB960_SR_GPIO_INPUT_CTL … #define UB960_SR_GPIO_PIN_CTL(n) … #define UB960_SR_GPIO_PIN_CTL_GPIO_OUT_SEL … #define UB960_SR_GPIO_PIN_CTL_GPIO_OUT_SRC_SHIFT … #define UB960_SR_GPIO_PIN_CTL_GPIO_OUT_EN … #define UB960_SR_FS_CTL … #define UB960_SR_FS_HIGH_TIME_1 … #define UB960_SR_FS_HIGH_TIME_0 … #define UB960_SR_FS_LOW_TIME_1 … #define UB960_SR_FS_LOW_TIME_0 … #define UB960_SR_MAX_FRM_HI … #define UB960_SR_MAX_FRM_LO … #define UB960_SR_CSI_PLL_CTL … #define UB960_SR_FWD_CTL1 … #define UB960_SR_FWD_CTL1_PORT_DIS(n) … #define UB960_SR_FWD_CTL2 … #define UB960_SR_FWD_STS … #define UB960_SR_INTERRUPT_CTL … #define UB960_SR_INTERRUPT_CTL_INT_EN … #define UB960_SR_INTERRUPT_CTL_IE_CSI_TX0 … #define UB960_SR_INTERRUPT_CTL_IE_RX(n) … #define UB960_SR_INTERRUPT_STS … #define UB960_SR_INTERRUPT_STS_INT … #define UB960_SR_INTERRUPT_STS_IS_CSI_TX(n) … #define UB960_SR_INTERRUPT_STS_IS_RX(n) … #define UB960_SR_TS_CONFIG … #define UB960_SR_TS_CONTROL … #define UB960_SR_TS_LINE_HI … #define UB960_SR_TS_LINE_LO … #define UB960_SR_TS_STATUS … #define UB960_SR_TIMESTAMP_P0_HI … #define UB960_SR_TIMESTAMP_P0_LO … #define UB960_SR_TIMESTAMP_P1_HI … #define UB960_SR_TIMESTAMP_P1_LO … #define UB960_SR_CSI_PORT_SEL … #define UB960_TR_CSI_CTL … #define UB960_TR_CSI_CTL_CSI_CAL_EN … #define UB960_TR_CSI_CTL_CSI_CONTS_CLOCK … #define UB960_TR_CSI_CTL_CSI_ENABLE … #define UB960_TR_CSI_CTL2 … #define UB960_TR_CSI_STS … #define UB960_TR_CSI_TX_ICR … #define UB960_TR_CSI_TX_ISR … #define UB960_TR_CSI_TX_ISR_IS_CSI_SYNC_ERROR … #define UB960_TR_CSI_TX_ISR_IS_CSI_PASS_ERROR … #define UB960_TR_CSI_TEST_CTL … #define UB960_TR_CSI_TEST_PATT_HI … #define UB960_TR_CSI_TEST_PATT_LO … #define UB960_XR_SFILTER_CFG … #define UB960_XR_SFILTER_CFG_SFILTER_MAX_SHIFT … #define UB960_XR_SFILTER_CFG_SFILTER_MIN_SHIFT … #define UB960_XR_AEQ_CTL1 … #define UB960_XR_AEQ_CTL1_AEQ_ERR_CTL_FPD_CLK … #define UB960_XR_AEQ_CTL1_AEQ_ERR_CTL_ENCODING … #define UB960_XR_AEQ_CTL1_AEQ_ERR_CTL_PARITY … #define UB960_XR_AEQ_CTL1_AEQ_ERR_CTL_MASK … #define UB960_XR_AEQ_CTL1_AEQ_SFILTER_EN … #define UB960_XR_AEQ_ERR_THOLD … #define UB960_RR_BCC_ERR_CTL … #define UB960_RR_BCC_STATUS … #define UB960_RR_BCC_STATUS_SEQ_ERROR … #define UB960_RR_BCC_STATUS_MASTER_ERR … #define UB960_RR_BCC_STATUS_MASTER_TO … #define UB960_RR_BCC_STATUS_SLAVE_ERR … #define UB960_RR_BCC_STATUS_SLAVE_TO … #define UB960_RR_BCC_STATUS_RESP_ERR … #define UB960_RR_BCC_STATUS_ERROR_MASK … #define UB960_RR_FPD3_CAP … #define UB960_RR_RAW_EMBED_DTYPE … #define UB960_RR_RAW_EMBED_DTYPE_LINES_SHIFT … #define UB960_SR_FPD3_PORT_SEL … #define UB960_RR_RX_PORT_STS1 … #define UB960_RR_RX_PORT_STS1_BCC_CRC_ERROR … #define UB960_RR_RX_PORT_STS1_LOCK_STS_CHG … #define UB960_RR_RX_PORT_STS1_BCC_SEQ_ERROR … #define UB960_RR_RX_PORT_STS1_PARITY_ERROR … #define UB960_RR_RX_PORT_STS1_PORT_PASS … #define UB960_RR_RX_PORT_STS1_LOCK_STS … #define UB960_RR_RX_PORT_STS1_ERROR_MASK … #define UB960_RR_RX_PORT_STS2 … #define UB960_RR_RX_PORT_STS2_LINE_LEN_UNSTABLE … #define UB960_RR_RX_PORT_STS2_LINE_LEN_CHG … #define UB960_RR_RX_PORT_STS2_FPD3_ENCODE_ERROR … #define UB960_RR_RX_PORT_STS2_BUFFER_ERROR … #define UB960_RR_RX_PORT_STS2_CSI_ERROR … #define UB960_RR_RX_PORT_STS2_FREQ_STABLE … #define UB960_RR_RX_PORT_STS2_CABLE_FAULT … #define UB960_RR_RX_PORT_STS2_LINE_CNT_CHG … #define UB960_RR_RX_PORT_STS2_ERROR_MASK … #define UB960_RR_RX_FREQ_HIGH … #define UB960_RR_RX_FREQ_LOW … #define UB960_RR_SENSOR_STS_0 … #define UB960_RR_SENSOR_STS_1 … #define UB960_RR_SENSOR_STS_2 … #define UB960_RR_SENSOR_STS_3 … #define UB960_RR_RX_PAR_ERR_HI … #define UB960_RR_RX_PAR_ERR_LO … #define UB960_RR_BIST_ERR_COUNT … #define UB960_RR_BCC_CONFIG … #define UB960_RR_BCC_CONFIG_I2C_PASS_THROUGH … #define UB960_RR_BCC_CONFIG_BC_FREQ_SEL_MASK … #define UB960_RR_DATAPATH_CTL1 … #define UB960_RR_DATAPATH_CTL2 … #define UB960_RR_SER_ID … #define UB960_RR_SER_ALIAS_ID … /* For these two register sets: n < UB960_MAX_PORT_ALIASES */ #define UB960_RR_SLAVE_ID(n) … #define UB960_RR_SLAVE_ALIAS(n) … #define UB960_RR_PORT_CONFIG … #define UB960_RR_PORT_CONFIG_FPD3_MODE_MASK … #define UB960_RR_BC_GPIO_CTL(n) … #define UB960_RR_RAW10_ID … #define UB960_RR_RAW10_ID_VC_SHIFT … #define UB960_RR_RAW10_ID_DT_SHIFT … #define UB960_RR_RAW12_ID … #define UB960_RR_CSI_VC_MAP … #define UB960_RR_CSI_VC_MAP_SHIFT(x) … #define UB960_RR_LINE_COUNT_HI … #define UB960_RR_LINE_COUNT_LO … #define UB960_RR_LINE_LEN_1 … #define UB960_RR_LINE_LEN_0 … #define UB960_RR_FREQ_DET_CTL … #define UB960_RR_MAILBOX_1 … #define UB960_RR_MAILBOX_2 … #define UB960_RR_CSI_RX_STS … #define UB960_RR_CSI_RX_STS_LENGTH_ERR … #define UB960_RR_CSI_RX_STS_CKSUM_ERR … #define UB960_RR_CSI_RX_STS_ECC2_ERR … #define UB960_RR_CSI_RX_STS_ECC1_ERR … #define UB960_RR_CSI_RX_STS_ERROR_MASK … #define UB960_RR_CSI_ERR_COUNTER … #define UB960_RR_PORT_CONFIG2 … #define UB960_RR_PORT_CONFIG2_RAW10_8BIT_CTL_MASK … #define UB960_RR_PORT_CONFIG2_RAW10_8BIT_CTL_SHIFT … #define UB960_RR_PORT_CONFIG2_LV_POL_LOW … #define UB960_RR_PORT_CONFIG2_FV_POL_LOW … #define UB960_RR_PORT_PASS_CTL … #define UB960_RR_SEN_INT_RISE_CTL … #define UB960_RR_SEN_INT_FALL_CTL … #define UB960_SR_CSI_FRAME_COUNT_HI(n) … #define UB960_SR_CSI_FRAME_COUNT_LO(n) … #define UB960_SR_CSI_FRAME_ERR_COUNT_HI(n) … #define UB960_SR_CSI_FRAME_ERR_COUNT_LO(n) … #define UB960_SR_CSI_LINE_COUNT_HI(n) … #define UB960_SR_CSI_LINE_COUNT_LO(n) … #define UB960_SR_CSI_LINE_ERR_COUNT_HI(n) … #define UB960_SR_CSI_LINE_ERR_COUNT_LO(n) … #define UB960_XR_REFCLK_FREQ … #define UB960_RR_VC_ID_MAP(x) … #define UB960_SR_IND_ACC_CTL … #define UB960_SR_IND_ACC_CTL_IA_AUTO_INC … #define UB960_SR_IND_ACC_ADDR … #define UB960_SR_IND_ACC_DATA … #define UB960_SR_BIST_CONTROL … #define UB960_SR_MODE_IDX_STS … #define UB960_SR_LINK_ERROR_COUNT … #define UB960_SR_FPD3_ENC_CTL … #define UB960_SR_FV_MIN_TIME … #define UB960_SR_GPIO_PD_CTL … #define UB960_SR_FPD_RATE_CFG … #define UB960_SR_CSI_PLL_DIV … #define UB960_RR_PORT_DEBUG … #define UB960_RR_AEQ_CTL2 … #define UB960_RR_AEQ_CTL2_SET_AEQ_FLOOR … #define UB960_RR_AEQ_STATUS … #define UB960_RR_AEQ_STATUS_STATUS_2 … #define UB960_RR_AEQ_STATUS_STATUS_1 … #define UB960_RR_AEQ_BYPASS … #define UB960_RR_AEQ_BYPASS_EQ_STAGE1_VALUE_SHIFT … #define UB960_RR_AEQ_BYPASS_EQ_STAGE1_VALUE_MASK … #define UB960_RR_AEQ_BYPASS_EQ_STAGE2_VALUE_SHIFT … #define UB960_RR_AEQ_BYPASS_EQ_STAGE2_VALUE_MASK … #define UB960_RR_AEQ_BYPASS_ENABLE … #define UB960_RR_AEQ_MIN_MAX … #define UB960_RR_AEQ_MIN_MAX_AEQ_MAX_SHIFT … #define UB960_RR_AEQ_MIN_MAX_AEQ_FLOOR_SHIFT … #define UB960_RR_SFILTER_STS_0 … #define UB960_RR_SFILTER_STS_1 … #define UB960_RR_PORT_ICR_HI … #define UB960_RR_PORT_ICR_LO … #define UB960_RR_PORT_ISR_HI … #define UB960_RR_PORT_ISR_LO … #define UB960_RR_FC_GPIO_STS … #define UB960_RR_FC_GPIO_ICR … #define UB960_RR_SEN_INT_RISE_STS … #define UB960_RR_SEN_INT_FALL_STS … #define UB960_RR_CHANNEL_MODE … #define UB960_SR_FPD3_RX_ID(n) … #define UB960_SR_FPD3_RX_ID_LEN … #define UB960_SR_I2C_RX_ID(n) … /* Indirect register blocks */ #define UB960_IND_TARGET_PAT_GEN … #define UB960_IND_TARGET_RX_ANA(n) … #define UB960_IND_TARGET_CSI_CSIPLL_REG_1 … #define UB960_IND_TARGET_CSI_ANA … /* UB960_IR_PGEN_*: Indirect Registers for Test Pattern Generator */ #define UB960_IR_PGEN_CTL … #define UB960_IR_PGEN_CTL_PGEN_ENABLE … #define UB960_IR_PGEN_CFG … #define UB960_IR_PGEN_CSI_DI … #define UB960_IR_PGEN_LINE_SIZE1 … #define UB960_IR_PGEN_LINE_SIZE0 … #define UB960_IR_PGEN_BAR_SIZE1 … #define UB960_IR_PGEN_BAR_SIZE0 … #define UB960_IR_PGEN_ACT_LPF1 … #define UB960_IR_PGEN_ACT_LPF0 … #define UB960_IR_PGEN_TOT_LPF1 … #define UB960_IR_PGEN_TOT_LPF0 … #define UB960_IR_PGEN_LINE_PD1 … #define UB960_IR_PGEN_LINE_PD0 … #define UB960_IR_PGEN_VBP … #define UB960_IR_PGEN_VFP … #define UB960_IR_PGEN_COLOR(n) … #define UB960_IR_RX_ANA_STROBE_SET_CLK … #define UB960_IR_RX_ANA_STROBE_SET_CLK_NO_EXTRA_DELAY … #define UB960_IR_RX_ANA_STROBE_SET_CLK_DELAY_MASK … #define UB960_IR_RX_ANA_STROBE_SET_DATA … #define UB960_IR_RX_ANA_STROBE_SET_DATA_NO_EXTRA_DELAY … #define UB960_IR_RX_ANA_STROBE_SET_DATA_DELAY_MASK … /* EQ related */ #define UB960_MIN_AEQ_STROBE_POS … #define UB960_MAX_AEQ_STROBE_POS … #define UB960_MANUAL_STROBE_EXTRA_DELAY … #define UB960_MIN_MANUAL_STROBE_POS … #define UB960_MAX_MANUAL_STROBE_POS … #define UB960_NUM_MANUAL_STROBE_POS … #define UB960_MIN_EQ_LEVEL … #define UB960_MAX_EQ_LEVEL … #define UB960_NUM_EQ_LEVELS … struct ub960_hw_data { … }; enum ub960_rxport_mode { … }; enum ub960_rxport_cdr { … }; struct ub960_rxport { … }; struct ub960_asd { … }; static inline struct ub960_asd *to_ub960_asd(struct v4l2_async_connection *asd) { … } struct ub960_txport { … }; struct ub960_data { … }; static inline struct ub960_data *sd_to_ub960(struct v4l2_subdev *sd) { … } static inline bool ub960_pad_is_sink(struct ub960_data *priv, u32 pad) { … } static inline bool ub960_pad_is_source(struct ub960_data *priv, u32 pad) { … } static inline unsigned int ub960_pad_to_port(struct ub960_data *priv, u32 pad) { … } struct ub960_format_info { … }; static const struct ub960_format_info ub960_formats[] = …; static const struct ub960_format_info *ub960_find_format(u32 code) { … } /* ----------------------------------------------------------------------------- * Basic device access */ static int ub960_read(struct ub960_data *priv, u8 reg, u8 *val) { … } static int ub960_write(struct ub960_data *priv, u8 reg, u8 val) { … } static int ub960_update_bits(struct ub960_data *priv, u8 reg, u8 mask, u8 val) { … } static int ub960_read16(struct ub960_data *priv, u8 reg, u16 *val) { … } static int ub960_rxport_select(struct ub960_data *priv, u8 nport) { … } static int ub960_rxport_read(struct ub960_data *priv, u8 nport, u8 reg, u8 *val) { … } static int ub960_rxport_write(struct ub960_data *priv, u8 nport, u8 reg, u8 val) { … } static int ub960_rxport_update_bits(struct ub960_data *priv, u8 nport, u8 reg, u8 mask, u8 val) { … } static int ub960_rxport_read16(struct ub960_data *priv, u8 nport, u8 reg, u16 *val) { … } static int ub960_txport_select(struct ub960_data *priv, u8 nport) { … } static int ub960_txport_read(struct ub960_data *priv, u8 nport, u8 reg, u8 *val) { … } static int ub960_txport_write(struct ub960_data *priv, u8 nport, u8 reg, u8 val) { … } static int ub960_txport_update_bits(struct ub960_data *priv, u8 nport, u8 reg, u8 mask, u8 val) { … } static int ub960_select_ind_reg_block(struct ub960_data *priv, u8 block) { … } static int ub960_read_ind(struct ub960_data *priv, u8 block, u8 reg, u8 *val) { … } static int ub960_write_ind(struct ub960_data *priv, u8 block, u8 reg, u8 val) { … } static int ub960_ind_update_bits(struct ub960_data *priv, u8 block, u8 reg, u8 mask, u8 val) { … } /* ----------------------------------------------------------------------------- * I2C-ATR (address translator) */ static int ub960_atr_attach_client(struct i2c_atr *atr, u32 chan_id, const struct i2c_client *client, u16 alias) { … } static void ub960_atr_detach_client(struct i2c_atr *atr, u32 chan_id, const struct i2c_client *client) { … } static const struct i2c_atr_ops ub960_atr_ops = …; static int ub960_init_atr(struct ub960_data *priv) { … } static void ub960_uninit_atr(struct ub960_data *priv) { … } /* ----------------------------------------------------------------------------- * TX ports */ static int ub960_parse_dt_txport(struct ub960_data *priv, struct fwnode_handle *ep_fwnode, u8 nport) { … } static void ub960_csi_handle_events(struct ub960_data *priv, u8 nport) { … } /* ----------------------------------------------------------------------------- * RX ports */ static int ub960_rxport_enable_vpocs(struct ub960_data *priv) { … } static void ub960_rxport_disable_vpocs(struct ub960_data *priv) { … } static void ub960_rxport_clear_errors(struct ub960_data *priv, unsigned int nport) { … } static void ub960_clear_rx_errors(struct ub960_data *priv) { … } static int ub960_rxport_get_strobe_pos(struct ub960_data *priv, unsigned int nport, s8 *strobe_pos) { … } static void ub960_rxport_set_strobe_pos(struct ub960_data *priv, unsigned int nport, s8 strobe_pos) { … } static void ub960_rxport_set_strobe_range(struct ub960_data *priv, s8 strobe_min, s8 strobe_max) { … } static int ub960_rxport_get_eq_level(struct ub960_data *priv, unsigned int nport, u8 *eq_level) { … } static void ub960_rxport_set_eq_level(struct ub960_data *priv, unsigned int nport, u8 eq_level) { … } static void ub960_rxport_set_eq_range(struct ub960_data *priv, unsigned int nport, u8 eq_min, u8 eq_max) { … } static void ub960_rxport_config_eq(struct ub960_data *priv, unsigned int nport) { … } static int ub960_rxport_link_ok(struct ub960_data *priv, unsigned int nport, bool *ok) { … } /* * Wait for the RX ports to lock, have no errors and have stable strobe position * and EQ level. */ static int ub960_rxport_wait_locks(struct ub960_data *priv, unsigned long port_mask, unsigned int *lock_mask) { … } static unsigned long ub960_calc_bc_clk_rate_ub960(struct ub960_data *priv, struct ub960_rxport *rxport) { … } static unsigned long ub960_calc_bc_clk_rate_ub9702(struct ub960_data *priv, struct ub960_rxport *rxport) { … } static int ub960_rxport_add_serializer(struct ub960_data *priv, u8 nport) { … } static void ub960_rxport_remove_serializer(struct ub960_data *priv, u8 nport) { … } /* Add serializer i2c devices for all initialized ports */ static int ub960_rxport_add_serializers(struct ub960_data *priv) { … } static void ub960_rxport_remove_serializers(struct ub960_data *priv) { … } static void ub960_init_tx_port(struct ub960_data *priv, struct ub960_txport *txport) { … } static int ub960_init_tx_ports(struct ub960_data *priv) { … } static void ub960_init_rx_port_ub960(struct ub960_data *priv, struct ub960_rxport *rxport) { … } static void ub960_init_rx_port_ub9702_fpd3(struct ub960_data *priv, struct ub960_rxport *rxport) { … } static void ub960_init_rx_port_ub9702_fpd4_aeq(struct ub960_data *priv, struct ub960_rxport *rxport) { … } static void ub960_init_rx_port_ub9702_fpd4(struct ub960_data *priv, struct ub960_rxport *rxport) { … } static void ub960_init_rx_port_ub9702(struct ub960_data *priv, struct ub960_rxport *rxport) { … } static int ub960_init_rx_ports(struct ub960_data *priv) { … } static void ub960_rxport_handle_events(struct ub960_data *priv, u8 nport) { … } /* ----------------------------------------------------------------------------- * V4L2 */ /* * The current implementation only supports a simple VC mapping, where all VCs * from a one RX port will be mapped to the same VC. Also, the hardware * dictates that all streams from an RX port must go to a single TX port. * * This function decides the target VC numbers for each RX port with a simple * algorithm, so that for each TX port, we get VC numbers starting from 0, * and counting up. * * E.g. if all four RX ports are in use, of which the first two go to the * first TX port and the secont two go to the second TX port, we would get * the following VCs for the four RX ports: 0, 1, 0, 1. * * TODO: implement a more sophisticated VC mapping. As the driver cannot know * what VCs the sinks expect (say, an FPGA with hardcoded VC routing), this * probably needs to be somehow configurable. Device tree? */ static void ub960_get_vc_maps(struct ub960_data *priv, struct v4l2_subdev_state *state, u8 *vc) { … } static int ub960_enable_tx_port(struct ub960_data *priv, unsigned int nport) { … } static void ub960_disable_tx_port(struct ub960_data *priv, unsigned int nport) { … } static int ub960_enable_rx_port(struct ub960_data *priv, unsigned int nport) { … } static void ub960_disable_rx_port(struct ub960_data *priv, unsigned int nport) { … } /* * The driver only supports using a single VC for each source. This function * checks that each source only provides streams using a single VC. */ static int ub960_validate_stream_vcs(struct ub960_data *priv) { … } static int ub960_configure_ports_for_streaming(struct ub960_data *priv, struct v4l2_subdev_state *state) { … } static void ub960_update_streaming_status(struct ub960_data *priv) { … } static int ub960_enable_streams(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, u32 source_pad, u64 source_streams_mask) { … } static int ub960_disable_streams(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, u32 source_pad, u64 source_streams_mask) { … } static int _ub960_set_routing(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_krouting *routing) { … } static int ub960_set_routing(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, enum v4l2_subdev_format_whence which, struct v4l2_subdev_krouting *routing) { … } static int ub960_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_mbus_frame_desc *fd) { … } static int ub960_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_format *format) { … } static int ub960_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *state) { … } static const struct v4l2_subdev_pad_ops ub960_pad_ops = …; static int ub960_log_status(struct v4l2_subdev *sd) { … } static const struct v4l2_subdev_core_ops ub960_subdev_core_ops = …; static const struct v4l2_subdev_internal_ops ub960_internal_ops = …; static const struct v4l2_subdev_ops ub960_subdev_ops = …; static const struct media_entity_operations ub960_entity_ops = …; /* ----------------------------------------------------------------------------- * Core */ static irqreturn_t ub960_handle_events(int irq, void *arg) { … } static void ub960_handler_work(struct work_struct *work) { … } static void ub960_txport_free_ports(struct ub960_data *priv) { … } static void ub960_rxport_free_ports(struct ub960_data *priv) { … } static int ub960_parse_dt_rxport_link_properties(struct ub960_data *priv, struct fwnode_handle *link_fwnode, struct ub960_rxport *rxport) { … } static int ub960_parse_dt_rxport_ep_properties(struct ub960_data *priv, struct fwnode_handle *ep_fwnode, struct ub960_rxport *rxport) { … } static int ub960_parse_dt_rxport(struct ub960_data *priv, unsigned int nport, struct fwnode_handle *link_fwnode, struct fwnode_handle *ep_fwnode) { … } static struct fwnode_handle * ub960_fwnode_get_link_by_regs(struct fwnode_handle *links_fwnode, unsigned int nport) { … } static int ub960_parse_dt_rxports(struct ub960_data *priv) { … } static int ub960_parse_dt_txports(struct ub960_data *priv) { … } static int ub960_parse_dt(struct ub960_data *priv) { … } static int ub960_notify_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_connection *asd) { … } static void ub960_notify_unbind(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_connection *asd) { … } static const struct v4l2_async_notifier_operations ub960_notify_ops = …; static int ub960_v4l2_notifier_register(struct ub960_data *priv) { … } static void ub960_v4l2_notifier_unregister(struct ub960_data *priv) { … } static int ub960_create_subdev(struct ub960_data *priv) { … } static void ub960_destroy_subdev(struct ub960_data *priv) { … } static const struct regmap_config ub960_regmap_config = …; static void ub960_reset(struct ub960_data *priv, bool reset_regs) { … } static int ub960_get_hw_resources(struct ub960_data *priv) { … } static int ub960_enable_core_hw(struct ub960_data *priv) { … } static void ub960_disable_core_hw(struct ub960_data *priv) { … } static int ub960_probe(struct i2c_client *client) { … } static void ub960_remove(struct i2c_client *client) { … } static const struct ub960_hw_data ds90ub960_hw = …; static const struct ub960_hw_data ds90ub9702_hw = …; static const struct i2c_device_id ub960_id[] = …; MODULE_DEVICE_TABLE(i2c, ub960_id); static const struct of_device_id ub960_dt_ids[] = …; MODULE_DEVICE_TABLE(of, ub960_dt_ids); static struct i2c_driver ds90ub960_driver = …; module_i2c_driver(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_IMPORT_NS(…);
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