2018 lines
49 KiB
C
2018 lines
49 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2022 Rockchip Electronics Co., Ltd.
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*
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* lt6911uxe HDMI to MIPI CSI-2 bridge driver.
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*
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* Author: Jianwei Fan <jianwei.fan@rock-chips.com>
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*
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* V0.0X01.0X00 first version.
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* V0.0X01.0X01 support DPHY 4K60.
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* V0.0X01.0X02 support BGR888 format.
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* V0.0X01.0X03 add more timing support.
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* V0.0X01.0X04
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* 1.fix some errors.
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* 2.add dphy timing reg.
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* V0.0X01.0X05 add dual mipi mode support
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*
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*/
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// #define DEBUG
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/hdmi.h>
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of_graph.h>
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#include <linux/rk-camera-module.h>
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#include <linux/slab.h>
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#include <linux/timer.h>
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#include <linux/v4l2-dv-timings.h>
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#include <linux/version.h>
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#include <linux/videodev2.h>
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#include <linux/workqueue.h>
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#include <linux/compat.h>
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#include <media/v4l2-controls_rockchip.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-dv-timings.h>
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#include <media/v4l2-event.h>
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#include <media/v4l2-fwnode.h>
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#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x05)
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "debug level (0-3)");
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#define I2C_MAX_XFER_SIZE 128
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#define POLL_INTERVAL_MS 1000
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#define LT6911UXE_LINK_FREQ_1250M 1250000000
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#define LT6911UXE_LINK_FREQ_900M 900000000
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#define LT6911UXE_LINK_FREQ_600M 600000000
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#define LT6911UXE_LINK_FREQ_450M 450000000
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#define LT6911UXE_LINK_FREQ_400M 400000000
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#define LT6911UXE_LINK_FREQ_300M 300000000
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#define LT6911UXE_LINK_FREQ_200M 200000000
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#define LT6911UXE_LINK_FREQ_150M 150000000
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#define LT6911UXE_LINK_FREQ_100M 100000000
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#define LT6911UXE_PIXEL_RATE 800000000
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#define LT6911UXE_CHIPID 0x0221
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#define CHIPID_REGH 0xe101
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#define CHIPID_REGL 0xe100
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#define I2C_EN_REG 0xe0ee
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#define I2C_ENABLE 0x1
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#define I2C_DISABLE 0x0
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#define HTOTAL_H 0xe088
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#define HTOTAL_L 0xe089
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#define HACT_H 0xe08c
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#define HACT_L 0xe08d
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#define VTOTAL_H 0xe08a
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#define VTOTAL_L 0xe08b
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#define VACT_H 0xe08e
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#define VACT_L 0xe08f
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#define HS_HALF 0xe080
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#define HFP_HALF_H 0xe081
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#define HFP_HALF_L 0xe082
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#define VS 0xe083
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#define VFP_H 0xe097
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#define VFP_L 0xe098
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#define PCLK_H 0xe085
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#define PCLK_M 0xe086
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#define PCLK_L 0xe087
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#define BYTE_PCLK_H 0xe092
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#define BYTE_PCLK_M 0xe093
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#define BYTE_PCLK_L 0xe094
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#define AUDIO_FS_VALUE_H 0xe090
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#define AUDIO_FS_VALUE_L 0xe091
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#define LNAE_NUM 0xe095
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#define BUS_FMT 0xe096
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#define STREAM_CTL 0xe0b0
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#define ENABLE_STREAM 0x01
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#define DISABLE_STREAM 0x00
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//mipi phy timing
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#define CLK_ZERO_REG 0xeaa7
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#define CLK_PRE_REG 0xeaa8
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#define CLK_POST_REG 0xeaa9
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#define HS_LPX_REG 0xeaa4
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#define HS_PREPARE_REG 0xeaa5
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#define HS_TRAIL 0xeaa6
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#define HS_RQST_PRE_REG 0xea8a
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//bit[2:0] mipi hs delay
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#define MIPI_TX_PT0_TX0_DLY 0xe23a
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#define MIPI_TX_PT0_TX1_DLY 0xe23b
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#define MIPI_TX_PT0_TXC_DLY 0xe23c
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#define MIPI_TX_PT0_TX2_DLY 0xe23d
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#define MIPI_TX_PT0_TX3_DLY 0xe23e
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#define MIPI_TX_PT1_TX0_DLY 0xe24a
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#define MIPI_TX_PT1_TX1_DLY 0xe24b
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#define MIPI_TX_PT1_TXC_DLY 0xe24c
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#define MIPI_TX_PT1_TX2_DLY 0xe24d
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#define MIPI_TX_PT1_TX3_DLY 0xe24e
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#define MIPI_TIMING_MASK 0x7
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//LP driver level
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#define MIPI_TX_PT0_LPTX 0xe234
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#define MIPI_TX_PT1_LPTX 0xe244
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// #define LT6911UXE_OUT_RGB
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#ifdef LT6911UXE_OUT_RGB
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#define LT6911UXE_MEDIA_BUS_FMT MEDIA_BUS_FMT_BGR888_1X24
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#else
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#define LT6911UXE_MEDIA_BUS_FMT MEDIA_BUS_FMT_UYVY8_2X8
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#endif
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#define LT6911UXE_NAME "LT6911UXE"
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#ifdef LT6911UXE_OUT_RGB
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static const s64 link_freq_menu_items[] = {
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LT6911UXE_LINK_FREQ_1250M,
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LT6911UXE_LINK_FREQ_900M,
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LT6911UXE_LINK_FREQ_600M,
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LT6911UXE_LINK_FREQ_450M,
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LT6911UXE_LINK_FREQ_300M,
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LT6911UXE_LINK_FREQ_150M,
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};
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#else
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static const s64 link_freq_menu_items[] = {
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LT6911UXE_LINK_FREQ_1250M,
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LT6911UXE_LINK_FREQ_600M,
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LT6911UXE_LINK_FREQ_400M,
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LT6911UXE_LINK_FREQ_300M,
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LT6911UXE_LINK_FREQ_200M,
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LT6911UXE_LINK_FREQ_100M,
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};
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#endif
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struct lt6911uxe {
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struct v4l2_mbus_config_mipi_csi2 bus;
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struct v4l2_subdev sd;
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struct media_pad pad;
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struct v4l2_ctrl_handler hdl;
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struct i2c_client *i2c_client;
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struct mutex confctl_mutex;
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struct v4l2_ctrl *detect_tx_5v_ctrl;
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struct v4l2_ctrl *audio_sampling_rate_ctrl;
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struct v4l2_ctrl *audio_present_ctrl;
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struct v4l2_ctrl *link_freq;
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struct v4l2_ctrl *pixel_rate;
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struct delayed_work delayed_work_hotplug;
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struct delayed_work delayed_work_res_change;
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struct v4l2_dv_timings timings;
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struct clk *xvclk;
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struct gpio_desc *reset_gpio;
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struct gpio_desc *plugin_det_gpio;
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struct gpio_desc *power_gpio;
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struct work_struct work_i2c_poll;
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struct timer_list timer;
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const char *module_facing;
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const char *module_name;
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const char *len_name;
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const struct lt6911uxe_mode *cur_mode;
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const struct lt6911uxe_mode *support_modes;
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struct rkmodule_multi_dev_info multi_dev_info;
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struct rkmodule_csi_dphy_param dphy_param;
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u32 cfg_num;
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struct v4l2_fwnode_endpoint bus_cfg;
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bool nosignal;
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bool enable_hdcp;
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bool is_audio_present;
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bool power_on;
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int plugin_irq;
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u32 mbus_fmt_code;
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u32 module_index;
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u32 audio_sampling_rate;
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int lane_in_use;
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bool dual_mipi_port;
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};
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static const struct v4l2_dv_timings_cap lt6911uxe_timings_cap = {
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.type = V4L2_DV_BT_656_1120,
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.reserved = { 0 },
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V4L2_INIT_BT_TIMINGS(1, 10000, 1, 10000, 0, 800000000,
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V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
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V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
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V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED |
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V4L2_DV_BT_CAP_REDUCED_BLANKING |
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V4L2_DV_BT_CAP_CUSTOM)
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};
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struct lt6911uxe_mode {
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u32 width;
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u32 height;
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struct v4l2_fract max_fps;
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u32 hts_def;
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u32 vts_def;
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u32 exp_def;
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u32 mipi_freq_idx;
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u32 interlace;
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};
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static struct rkmodule_csi_dphy_param rk3588_dcphy_param = {
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.vendor = PHY_VENDOR_SAMSUNG,
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.lp_vol_ref = 3,
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.lp_hys_sw = {3, 0, 3, 0},
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.lp_escclk_pol_sel = {1, 1, 0, 0},
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.skew_data_cal_clk = {0, 13, 0, 13},
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.clk_hs_term_sel = 2,
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.data_hs_term_sel = {2, 2, 2, 2},
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.reserved = {0},
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};
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static const struct lt6911uxe_mode supported_modes_dphy[] = {
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{
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.width = 5120,
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.height = 2160,
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.max_fps = {
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.numerator = 10000,
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.denominator = 480000,
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},
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.hts_def = 5500,
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.vts_def = 2250,
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.mipi_freq_idx = 0,
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.interlace = 0,
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}, {
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.width = 4096,
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.height = 2160,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 4400,
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.vts_def = 2250,
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.mipi_freq_idx = 0,
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.interlace = 0,
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}, {
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.width = 4096,
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.height = 2160,
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.max_fps = {
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.numerator = 10000,
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.denominator = 300000,
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},
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.hts_def = 4400,
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.vts_def = 2250,
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.mipi_freq_idx = 1,
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.interlace = 0,
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}, {
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.width = 3840,
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.height = 2160,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 4400,
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.vts_def = 2250,
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.mipi_freq_idx = 0,
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.interlace = 0,
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}, {
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.width = 3840,
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.height = 2160,
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.max_fps = {
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.numerator = 10000,
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.denominator = 300000,
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},
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.hts_def = 4400,
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.vts_def = 2250,
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.mipi_freq_idx = 1,
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.interlace = 0,
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}, {
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.width = 1920,
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.height = 1080,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 2200,
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.vts_def = 1125,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1920,
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.height = 1200,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 2592,
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.vts_def = 1245,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1920,
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.height = 1080,
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.max_fps = {
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.numerator = 10000,
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.denominator = 300000,
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},
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.hts_def = 2200,
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.vts_def = 1125,
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.mipi_freq_idx = 4,
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.interlace = 0,
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}, {
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.width = 1920,
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.height = 1080,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 2200,
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.vts_def = 1125,
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.mipi_freq_idx = 4,
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.interlace = 1,
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}, {
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.width = 1680,
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.height = 1050,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 2240,
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.vts_def = 1089,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1600,
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.height = 1200,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 2160,
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.vts_def = 1250,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1600,
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.height = 900,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1800,
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.vts_def = 1000,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1440,
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.height = 900,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1904,
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.vts_def = 934,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1440,
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.height = 240,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1716,
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.vts_def = 262,
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.mipi_freq_idx = 5,
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.interlace = 0,
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}, {
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.width = 1360,
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.height = 768,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1792,
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.vts_def = 795,
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.mipi_freq_idx = 4,
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.interlace = 0,
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}, {
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.width = 1280,
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.height = 1024,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1688,
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.vts_def = 1066,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1280,
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.height = 960,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1712,
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.vts_def = 994,
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.mipi_freq_idx = 3,
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.interlace = 0,
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}, {
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.width = 1280,
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.height = 800,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1680,
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.vts_def = 828,
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.mipi_freq_idx = 4,
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.interlace = 0,
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}, {
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.width = 1280,
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.height = 768,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1664,
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.vts_def = 798,
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.mipi_freq_idx = 4,
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.interlace = 0,
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}, {
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.width = 1280,
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.height = 720,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1650,
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.vts_def = 750,
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.mipi_freq_idx = 4,
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.interlace = 0,
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}, {
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.width = 1152,
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.height = 864,
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.max_fps = {
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.numerator = 10000,
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.denominator = 750000,
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},
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.hts_def = 1600,
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.vts_def = 900,
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.mipi_freq_idx = 4,
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.interlace = 0,
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}, {
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.width = 1024,
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.height = 768,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1344,
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.vts_def = 806,
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.mipi_freq_idx = 4,
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.interlace = 0,
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}, {
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.width = 800,
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.height = 600,
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.max_fps = {
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.numerator = 10000,
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.denominator = 600000,
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},
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.hts_def = 1056,
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.vts_def = 628,
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.mipi_freq_idx = 5,
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.interlace = 0,
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}, {
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.width = 720,
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.height = 576,
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.max_fps = {
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.numerator = 10000,
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.denominator = 500000,
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},
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.hts_def = 864,
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.vts_def = 625,
|
|
.mipi_freq_idx = 5,
|
|
.interlace = 0,
|
|
}, {
|
|
.width = 720,
|
|
.height = 480,
|
|
.max_fps = {
|
|
.numerator = 10000,
|
|
.denominator = 600000,
|
|
},
|
|
.hts_def = 858,
|
|
.vts_def = 525,
|
|
.mipi_freq_idx = 5,
|
|
.interlace = 0,
|
|
}, {
|
|
.width = 720,
|
|
.height = 400,
|
|
.max_fps = {
|
|
.numerator = 10000,
|
|
.denominator = 850000,
|
|
},
|
|
.hts_def = 936,
|
|
.vts_def = 446,
|
|
.mipi_freq_idx = 5,
|
|
.interlace = 0,
|
|
}, {
|
|
.width = 720,
|
|
.height = 240,
|
|
.max_fps = {
|
|
.numerator = 10000,
|
|
.denominator = 600000,
|
|
},
|
|
.mipi_freq_idx = 5,
|
|
.interlace = 0,
|
|
}, {
|
|
.width = 640,
|
|
.height = 480,
|
|
.max_fps = {
|
|
.numerator = 10000,
|
|
.denominator = 600000,
|
|
},
|
|
.hts_def = 800,
|
|
.vts_def = 525,
|
|
.mipi_freq_idx = 5,
|
|
.interlace = 0,
|
|
},
|
|
};
|
|
|
|
static void lt6911uxe_format_change(struct v4l2_subdev *sd);
|
|
static int lt6911uxe_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd);
|
|
static int lt6911uxe_s_dv_timings(struct v4l2_subdev *sd,
|
|
struct v4l2_dv_timings *timings);
|
|
|
|
static inline struct lt6911uxe *to_lt6911uxe(struct v4l2_subdev *sd)
|
|
{
|
|
return container_of(sd, struct lt6911uxe, sd);
|
|
}
|
|
|
|
static void i2c_rd(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
struct i2c_client *client = lt6911uxe->i2c_client;
|
|
int err;
|
|
u8 buf[2] = { 0xFF, reg >> 8};
|
|
u8 reg_addr = reg & 0xFF;
|
|
struct i2c_msg msgs[3];
|
|
|
|
msgs[0].addr = client->addr;
|
|
msgs[0].flags = 0;
|
|
msgs[0].len = 2;
|
|
msgs[0].buf = buf;
|
|
|
|
msgs[1].addr = client->addr;
|
|
msgs[1].flags = 0;
|
|
msgs[1].len = 1;
|
|
msgs[1].buf = ®_addr;
|
|
|
|
msgs[2].addr = client->addr;
|
|
msgs[2].flags = I2C_M_RD;
|
|
msgs[2].len = n;
|
|
msgs[2].buf = values;
|
|
|
|
err = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
|
|
if (err != ARRAY_SIZE(msgs)) {
|
|
v4l2_err(sd, "%s: reading register 0x%x from 0x%x failed\n",
|
|
__func__, reg, client->addr);
|
|
}
|
|
|
|
if (!debug)
|
|
return;
|
|
|
|
switch (n) {
|
|
case 1:
|
|
v4l2_info(sd, "I2C read 0x%04x = 0x%02x\n",
|
|
reg, values[0]);
|
|
break;
|
|
case 2:
|
|
v4l2_info(sd, "I2C read 0x%04x = 0x%02x%02x\n",
|
|
reg, values[1], values[0]);
|
|
break;
|
|
case 4:
|
|
v4l2_info(sd, "I2C read 0x%04x = 0x%02x%02x%02x%02x\n",
|
|
reg, values[3], values[2], values[1], values[0]);
|
|
break;
|
|
default:
|
|
v4l2_info(sd, "I2C read %d bytes from address 0x%04x\n",
|
|
n, reg);
|
|
}
|
|
}
|
|
|
|
static void i2c_wr(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
struct i2c_client *client = lt6911uxe->i2c_client;
|
|
int err, i;
|
|
struct i2c_msg msgs[2];
|
|
u8 data[I2C_MAX_XFER_SIZE];
|
|
u8 buf[2] = { 0xFF, reg >> 8};
|
|
|
|
if ((1 + n) > I2C_MAX_XFER_SIZE) {
|
|
n = I2C_MAX_XFER_SIZE - 1;
|
|
v4l2_warn(sd, "i2c wr reg=%04x: len=%d is too big!\n",
|
|
reg, 1 + n);
|
|
}
|
|
|
|
msgs[0].addr = client->addr;
|
|
msgs[0].flags = 0;
|
|
msgs[0].len = 2;
|
|
msgs[0].buf = buf;
|
|
|
|
msgs[1].addr = client->addr;
|
|
msgs[1].flags = 0;
|
|
msgs[1].len = 1 + n;
|
|
msgs[1].buf = data;
|
|
|
|
data[0] = reg & 0xff;
|
|
for (i = 0; i < n; i++)
|
|
data[1 + i] = values[i];
|
|
|
|
err = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
|
|
if (err < 0) {
|
|
v4l2_err(sd, "%s: writing register 0x%x from 0x%x failed\n",
|
|
__func__, reg, client->addr);
|
|
return;
|
|
}
|
|
|
|
if (!debug)
|
|
return;
|
|
|
|
switch (n) {
|
|
case 1:
|
|
v4l2_info(sd, "I2C write 0x%04x = 0x%02x\n",
|
|
reg, data[1]);
|
|
break;
|
|
case 2:
|
|
v4l2_info(sd, "I2C write 0x%04x = 0x%02x%02x\n",
|
|
reg, data[2], data[1]);
|
|
break;
|
|
case 4:
|
|
v4l2_info(sd, "I2C write 0x%04x = 0x%02x%02x%02x%02x\n",
|
|
reg, data[4], data[3], data[2], data[1]);
|
|
break;
|
|
default:
|
|
v4l2_info(sd, "I2C write %d bytes from address 0x%04x\n",
|
|
n, reg);
|
|
}
|
|
}
|
|
|
|
static u8 i2c_rd8(struct v4l2_subdev *sd, u16 reg)
|
|
{
|
|
u32 val;
|
|
|
|
i2c_rd(sd, reg, (u8 __force *)&val, 1);
|
|
return val;
|
|
}
|
|
|
|
static void i2c_wr8(struct v4l2_subdev *sd, u16 reg, u8 val)
|
|
{
|
|
i2c_wr(sd, reg, &val, 1);
|
|
}
|
|
|
|
static __maybe_unused void i2c_wr8_and_or(struct v4l2_subdev *sd, u16 reg, u32 mask,
|
|
u8 val)
|
|
{
|
|
u8 val_p;
|
|
|
|
val_p = i2c_rd8(sd, reg);
|
|
i2c_wr8(sd, reg, (val_p & mask) | val);
|
|
}
|
|
|
|
static void lt6911uxe_i2c_enable(struct v4l2_subdev *sd)
|
|
{
|
|
i2c_wr8(sd, I2C_EN_REG, I2C_ENABLE);
|
|
}
|
|
|
|
static void lt6911uxe_i2c_disable(struct v4l2_subdev *sd)
|
|
{
|
|
i2c_wr8(sd, I2C_EN_REG, I2C_DISABLE);
|
|
}
|
|
|
|
static inline bool tx_5v_power_present(struct v4l2_subdev *sd)
|
|
{
|
|
bool ret;
|
|
int val, i, cnt;
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
/* if not use plugin det gpio */
|
|
if (!lt6911uxe->plugin_det_gpio)
|
|
return true;
|
|
|
|
cnt = 0;
|
|
for (i = 0; i < 5; i++) {
|
|
val = gpiod_get_value(lt6911uxe->plugin_det_gpio);
|
|
if (val > 0)
|
|
cnt++;
|
|
usleep_range(500, 600);
|
|
}
|
|
|
|
ret = (cnt >= 4) ? true : false;
|
|
v4l2_dbg(1, debug, sd, "%s: %d\n", __func__, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline bool no_signal(struct v4l2_subdev *sd)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
v4l2_dbg(1, debug, sd, "%s no signal:%d\n", __func__,
|
|
lt6911uxe->nosignal);
|
|
|
|
return lt6911uxe->nosignal;
|
|
}
|
|
|
|
static inline bool audio_present(struct v4l2_subdev *sd)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
return lt6911uxe->is_audio_present;
|
|
}
|
|
|
|
static int get_audio_sampling_rate(struct v4l2_subdev *sd)
|
|
{
|
|
static const int code_to_rate[] = {
|
|
44100, 0, 48000, 32000, 22050, 384000, 24000, 352800,
|
|
88200, 768000, 96000, 705600, 176400, 0, 192000, 0
|
|
};
|
|
|
|
if (no_signal(sd))
|
|
return 0;
|
|
|
|
return code_to_rate[2];
|
|
}
|
|
|
|
static inline unsigned int fps_calc(const struct v4l2_bt_timings *t)
|
|
{
|
|
if (!V4L2_DV_BT_FRAME_HEIGHT(t) || !V4L2_DV_BT_FRAME_WIDTH(t))
|
|
return 0;
|
|
|
|
return DIV_ROUND_CLOSEST((unsigned int)t->pixelclock,
|
|
V4L2_DV_BT_FRAME_HEIGHT(t) * V4L2_DV_BT_FRAME_WIDTH(t));
|
|
}
|
|
|
|
static bool lt6911uxe_rcv_supported_res(struct v4l2_subdev *sd, u32 width,
|
|
u32 height)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
u32 i;
|
|
|
|
for (i = 0; i < lt6911uxe->cfg_num; i++) {
|
|
if ((lt6911uxe->support_modes[i].width == width) &&
|
|
(lt6911uxe->support_modes[i].height == height)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == lt6911uxe->cfg_num) {
|
|
v4l2_err(sd, "%s do not support res wxh: %dx%d\n", __func__,
|
|
width, height);
|
|
return false;
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
static int lt6911uxe_get_detected_timings(struct v4l2_subdev *sd,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
struct v4l2_bt_timings *bt = &timings->bt;
|
|
u32 hact, vact, htotal, vtotal, hs, vs, hbp, vbp, hfp, vfp;
|
|
u32 pixel_clock, fps, halt_pix_clk;
|
|
u8 clk_h, clk_m, clk_l;
|
|
u8 val_h, val_l;
|
|
u32 byte_clk, mipi_clk, mipi_data_rate;
|
|
|
|
memset(timings, 0, sizeof(struct v4l2_dv_timings));
|
|
|
|
clk_h = i2c_rd8(sd, PCLK_H);
|
|
clk_m = i2c_rd8(sd, PCLK_M);
|
|
clk_l = i2c_rd8(sd, PCLK_L);
|
|
halt_pix_clk = ((clk_h << 16) | (clk_m << 8) | clk_l);
|
|
pixel_clock = halt_pix_clk * 1000 * 2;
|
|
|
|
clk_h = i2c_rd8(sd, BYTE_PCLK_H);
|
|
clk_m = i2c_rd8(sd, BYTE_PCLK_M);
|
|
clk_l = i2c_rd8(sd, BYTE_PCLK_L);
|
|
byte_clk = ((clk_h << 16) | (clk_m << 8) | clk_l) * 1000;
|
|
mipi_clk = byte_clk * 4;
|
|
mipi_data_rate = byte_clk * 8;
|
|
|
|
val_h = i2c_rd8(sd, HTOTAL_H);
|
|
val_l = i2c_rd8(sd, HTOTAL_L);
|
|
htotal = ((val_h << 8) | val_l) * 2;
|
|
|
|
val_h = i2c_rd8(sd, VTOTAL_H);
|
|
val_l = i2c_rd8(sd, VTOTAL_L);
|
|
vtotal = (val_h << 8) | val_l;
|
|
|
|
val_h = i2c_rd8(sd, HACT_H);
|
|
val_l = i2c_rd8(sd, HACT_L);
|
|
hact = ((val_h << 8) | val_l) * 2;
|
|
|
|
val_h = i2c_rd8(sd, VACT_H);
|
|
val_l = i2c_rd8(sd, VACT_L);
|
|
vact = (val_h << 8) | val_l;
|
|
|
|
hs = i2c_rd8(sd, HS_HALF) * 2;
|
|
|
|
val_h = i2c_rd8(sd, HFP_HALF_H);
|
|
val_l = i2c_rd8(sd, HFP_HALF_L);
|
|
hfp = ((val_h << 8) | val_l) * 2;
|
|
|
|
hbp = htotal - hact - hs - hfp;
|
|
|
|
vs = i2c_rd8(sd, VS);
|
|
val_h = i2c_rd8(sd, VFP_H);
|
|
val_l = i2c_rd8(sd, VFP_L);
|
|
vfp = (val_h << 8) | val_l;
|
|
|
|
vbp = vtotal - vact - vs - vfp;
|
|
|
|
lt6911uxe->nosignal = false;
|
|
lt6911uxe->is_audio_present = true;
|
|
timings->type = V4L2_DV_BT_656_1120;
|
|
bt->interlaced = V4L2_DV_PROGRESSIVE;
|
|
bt->width = hact;
|
|
bt->height = vact;
|
|
bt->vsync = vs;
|
|
bt->hsync = hs;
|
|
bt->hfrontporch = hfp;
|
|
bt->vfrontporch = vfp;
|
|
bt->hbackporch = hbp;
|
|
bt->vbackporch = vbp;
|
|
bt->pixelclock = pixel_clock;
|
|
fps = pixel_clock / (htotal * vtotal);
|
|
|
|
/* for interlaced res 1080i 576i 480i*/
|
|
if ((hact == 1920 && vact == 540) || (hact == 1440 && vact == 288)
|
|
|| (hact == 1440 && vact == 240)) {
|
|
bt->interlaced = V4L2_DV_INTERLACED;
|
|
bt->height *= 2;
|
|
bt->il_vsync = bt->vsync + 1;
|
|
} else {
|
|
bt->interlaced = V4L2_DV_PROGRESSIVE;
|
|
}
|
|
|
|
if (!lt6911uxe_rcv_supported_res(sd, hact, bt->height)) {
|
|
lt6911uxe->nosignal = true;
|
|
v4l2_err(sd, "%s: rcv err res, return no signal!\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
v4l2_info(sd, "act:%dx%d, total:%dx%d, pixclk:%d, fps:%d\n",
|
|
hact, vact, htotal, vtotal, pixel_clock, fps);
|
|
v4l2_info(sd, "byte_clk:%u, mipi_clk:%u, mipi_data_rate:%u\n",
|
|
byte_clk, mipi_clk, mipi_data_rate);
|
|
v4l2_info(sd, "hfp:%d, hs:%d, hbp:%d, vfp:%d, vs:%d, vbp:%d, inerlaced:%d\n",
|
|
bt->hfrontporch, bt->hsync, bt->hbackporch, bt->vfrontporch,
|
|
bt->vsync, bt->vbackporch, bt->interlaced);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void lt6911uxe_delayed_work_hotplug(struct work_struct *work)
|
|
{
|
|
struct delayed_work *dwork = to_delayed_work(work);
|
|
struct lt6911uxe *lt6911uxe = container_of(dwork,
|
|
struct lt6911uxe, delayed_work_hotplug);
|
|
struct v4l2_subdev *sd = <6911uxe->sd;
|
|
|
|
lt6911uxe_s_ctrl_detect_tx_5v(sd);
|
|
}
|
|
|
|
static void lt6911uxe_delayed_work_res_change(struct work_struct *work)
|
|
{
|
|
struct delayed_work *dwork = to_delayed_work(work);
|
|
struct lt6911uxe *lt6911uxe = container_of(dwork,
|
|
struct lt6911uxe, delayed_work_res_change);
|
|
struct v4l2_subdev *sd = <6911uxe->sd;
|
|
|
|
lt6911uxe_format_change(sd);
|
|
}
|
|
|
|
static int lt6911uxe_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
return v4l2_ctrl_s_ctrl(lt6911uxe->detect_tx_5v_ctrl,
|
|
tx_5v_power_present(sd));
|
|
}
|
|
|
|
static int lt6911uxe_s_ctrl_audio_sampling_rate(struct v4l2_subdev *sd)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
return v4l2_ctrl_s_ctrl(lt6911uxe->audio_sampling_rate_ctrl,
|
|
get_audio_sampling_rate(sd));
|
|
}
|
|
|
|
static int lt6911uxe_s_ctrl_audio_present(struct v4l2_subdev *sd)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
return v4l2_ctrl_s_ctrl(lt6911uxe->audio_present_ctrl,
|
|
audio_present(sd));
|
|
}
|
|
|
|
static int lt6911uxe_update_controls(struct v4l2_subdev *sd)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret |= lt6911uxe_s_ctrl_detect_tx_5v(sd);
|
|
ret |= lt6911uxe_s_ctrl_audio_sampling_rate(sd);
|
|
ret |= lt6911uxe_s_ctrl_audio_present(sd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void lt6911uxe_config_dphy_timing(struct v4l2_subdev *sd)
|
|
{
|
|
u8 val;
|
|
|
|
val = i2c_rd8(sd, CLK_ZERO_REG);
|
|
i2c_wr8(sd, CLK_ZERO_REG, val);
|
|
|
|
val = i2c_rd8(sd, HS_PREPARE_REG);
|
|
i2c_wr8(sd, HS_PREPARE_REG, val);
|
|
|
|
val = i2c_rd8(sd, HS_TRAIL);
|
|
i2c_wr8(sd, HS_TRAIL, val);
|
|
v4l2_info(sd, "%s: dphy timing: hs trail = %x\n", __func__, val);
|
|
|
|
val = i2c_rd8(sd, MIPI_TX_PT0_TX0_DLY);
|
|
i2c_wr8_and_or(sd, MIPI_TX_PT0_TX0_DLY, ~MIPI_TIMING_MASK, val);
|
|
v4l2_info(sd, "%s: dphy timing: port0 tx0 delay = %x\n", __func__, val);
|
|
|
|
val = i2c_rd8(sd, MIPI_TX_PT0_LPTX);
|
|
i2c_wr8(sd, MIPI_TX_PT0_LPTX, val);
|
|
v4l2_info(sd, "%s: dphy timing: port0 lptx = %x\n", __func__, val);
|
|
|
|
v4l2_info(sd, "%s: dphy timing config done.\n", __func__);
|
|
}
|
|
|
|
static inline void enable_stream(struct v4l2_subdev *sd, bool enable)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
if (enable) {
|
|
lt6911uxe_config_dphy_timing(sd);
|
|
usleep_range(5000, 6000);
|
|
i2c_wr8(<6911uxe->sd, STREAM_CTL, ENABLE_STREAM);
|
|
} else {
|
|
i2c_wr8(<6911uxe->sd, STREAM_CTL, DISABLE_STREAM);
|
|
}
|
|
msleep(20);
|
|
|
|
v4l2_dbg(2, debug, sd, "%s: %sable\n",
|
|
__func__, enable ? "en" : "dis");
|
|
}
|
|
|
|
static void lt6911uxe_format_change(struct v4l2_subdev *sd)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
struct v4l2_dv_timings timings;
|
|
const struct v4l2_event lt6911uxe_ev_fmt = {
|
|
.type = V4L2_EVENT_SOURCE_CHANGE,
|
|
.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
|
|
};
|
|
|
|
if (lt6911uxe_get_detected_timings(sd, &timings)) {
|
|
enable_stream(sd, false);
|
|
v4l2_dbg(1, debug, sd, "%s: No signal\n", __func__);
|
|
}
|
|
|
|
if (!v4l2_match_dv_timings(<6911uxe->timings, &timings, 0, false)) {
|
|
enable_stream(sd, false);
|
|
/* automatically set timing rather than set by user */
|
|
lt6911uxe_s_dv_timings(sd, &timings);
|
|
v4l2_print_dv_timings(sd->name,
|
|
"Format_change: New format: ",
|
|
&timings, false);
|
|
if (sd->devnode && !lt6911uxe->i2c_client->irq)
|
|
v4l2_subdev_notify_event(sd, <6911uxe_ev_fmt);
|
|
}
|
|
if (sd->devnode && lt6911uxe->i2c_client->irq)
|
|
v4l2_subdev_notify_event(sd, <6911uxe_ev_fmt);
|
|
}
|
|
|
|
static int lt6911uxe_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
schedule_delayed_work(<6911uxe->delayed_work_res_change, HZ / 20);
|
|
*handled = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t lt6911uxe_res_change_irq_handler(int irq, void *dev_id)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = dev_id;
|
|
bool handled;
|
|
|
|
lt6911uxe_isr(<6911uxe->sd, 0, &handled);
|
|
|
|
return handled ? IRQ_HANDLED : IRQ_NONE;
|
|
}
|
|
|
|
static irqreturn_t plugin_detect_irq_handler(int irq, void *dev_id)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = dev_id;
|
|
|
|
/* control hpd output level after 25ms */
|
|
schedule_delayed_work(<6911uxe->delayed_work_hotplug,
|
|
HZ / 40);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void lt6911uxe_irq_poll_timer(struct timer_list *t)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = from_timer(lt6911uxe, t, timer);
|
|
|
|
schedule_work(<6911uxe->work_i2c_poll);
|
|
mod_timer(<6911uxe->timer, jiffies + msecs_to_jiffies(POLL_INTERVAL_MS));
|
|
}
|
|
|
|
static void lt6911uxe_work_i2c_poll(struct work_struct *work)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = container_of(work,
|
|
struct lt6911uxe, work_i2c_poll);
|
|
struct v4l2_subdev *sd = <6911uxe->sd;
|
|
|
|
lt6911uxe_format_change(sd);
|
|
}
|
|
|
|
static int lt6911uxe_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
|
|
struct v4l2_event_subscription *sub)
|
|
{
|
|
switch (sub->type) {
|
|
case V4L2_EVENT_SOURCE_CHANGE:
|
|
return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
|
|
case V4L2_EVENT_CTRL:
|
|
return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int lt6911uxe_g_input_status(struct v4l2_subdev *sd, u32 *status)
|
|
{
|
|
*status = 0;
|
|
*status |= no_signal(sd) ? V4L2_IN_ST_NO_SIGNAL : 0;
|
|
|
|
v4l2_dbg(1, debug, sd, "%s: status = 0x%x\n", __func__, *status);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_s_dv_timings(struct v4l2_subdev *sd,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
if (!timings)
|
|
return -EINVAL;
|
|
|
|
if (debug)
|
|
v4l2_print_dv_timings(sd->name, "s_dv_timings: ",
|
|
timings, false);
|
|
|
|
if (v4l2_match_dv_timings(<6911uxe->timings, timings, 0, false)) {
|
|
v4l2_dbg(1, debug, sd, "%s: no change\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
lt6911uxe->timings = *timings;
|
|
|
|
enable_stream(sd, false);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_g_dv_timings(struct v4l2_subdev *sd,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
*timings = lt6911uxe->timings;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_enum_dv_timings(struct v4l2_subdev *sd,
|
|
struct v4l2_enum_dv_timings *timings)
|
|
{
|
|
if (timings->pad != 0)
|
|
return -EINVAL;
|
|
|
|
return v4l2_enum_dv_timings_cap(timings,
|
|
<6911uxe_timings_cap, NULL, NULL);
|
|
}
|
|
|
|
static int lt6911uxe_query_dv_timings(struct v4l2_subdev *sd,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
*timings = lt6911uxe->timings;
|
|
if (debug)
|
|
v4l2_print_dv_timings(sd->name,
|
|
"query_dv_timings: ", timings, false);
|
|
|
|
if (!v4l2_valid_dv_timings(timings, <6911uxe_timings_cap, NULL,
|
|
NULL)) {
|
|
v4l2_dbg(1, debug, sd, "%s: timings out of range\n",
|
|
__func__);
|
|
|
|
return -ERANGE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_dv_timings_cap(struct v4l2_subdev *sd,
|
|
struct v4l2_dv_timings_cap *cap)
|
|
{
|
|
if (cap->pad != 0)
|
|
return -EINVAL;
|
|
|
|
*cap = lt6911uxe_timings_cap;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_g_mbus_config(struct v4l2_subdev *sd,
|
|
unsigned int pad, struct v4l2_mbus_config *cfg)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
cfg->type = lt6911uxe->bus_cfg.bus_type;
|
|
cfg->bus.mipi_csi2 = lt6911uxe->bus_cfg.bus.mipi_csi2;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_s_stream(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
struct i2c_client *client = lt6911uxe->i2c_client;
|
|
|
|
dev_info(&client->dev, "%s: on: %d, %dx%d%s%d\n", __func__, on,
|
|
lt6911uxe->cur_mode->width,
|
|
lt6911uxe->cur_mode->height,
|
|
lt6911uxe->cur_mode->interlace ? "I" : "P",
|
|
DIV_ROUND_CLOSEST(lt6911uxe->cur_mode->max_fps.denominator,
|
|
lt6911uxe->cur_mode->max_fps.numerator));
|
|
enable_stream(sd, on);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_enum_mbus_code(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_state *sd_state,
|
|
struct v4l2_subdev_mbus_code_enum *code)
|
|
{
|
|
switch (code->index) {
|
|
case 0:
|
|
code->code = LT6911UXE_MEDIA_BUS_FMT;
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_enum_frame_sizes(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_state *sd_state,
|
|
struct v4l2_subdev_frame_size_enum *fse)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
if (fse->index >= lt6911uxe->cfg_num)
|
|
return -EINVAL;
|
|
|
|
if (fse->code != LT6911UXE_MEDIA_BUS_FMT)
|
|
return -EINVAL;
|
|
|
|
fse->min_width = lt6911uxe->support_modes[fse->index].width;
|
|
fse->max_width = lt6911uxe->support_modes[fse->index].width;
|
|
fse->max_height = lt6911uxe->support_modes[fse->index].height;
|
|
fse->min_height = lt6911uxe->support_modes[fse->index].height;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_enum_frame_interval(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_state *sd_state,
|
|
struct v4l2_subdev_frame_interval_enum *fie)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
if (fie->index >= lt6911uxe->cfg_num)
|
|
return -EINVAL;
|
|
|
|
fie->code = LT6911UXE_MEDIA_BUS_FMT;
|
|
|
|
fie->width = lt6911uxe->support_modes[fie->index].width;
|
|
fie->height = lt6911uxe->support_modes[fie->index].height;
|
|
fie->interval = lt6911uxe->support_modes[fie->index].max_fps;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_get_reso_dist(const struct lt6911uxe_mode *mode,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct v4l2_bt_timings *bt = &timings->bt;
|
|
u32 cur_fps, dist_fps;
|
|
|
|
cur_fps = fps_calc(bt);
|
|
dist_fps = DIV_ROUND_CLOSEST(mode->max_fps.denominator, mode->max_fps.numerator);
|
|
|
|
return abs(mode->width - bt->width) +
|
|
abs(mode->height - bt->height) + abs(dist_fps - cur_fps);
|
|
}
|
|
|
|
static const struct lt6911uxe_mode *
|
|
lt6911uxe_find_best_fit(struct lt6911uxe *lt6911uxe)
|
|
{
|
|
int dist;
|
|
int cur_best_fit = 0;
|
|
int cur_best_fit_dist = -1;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < lt6911uxe->cfg_num; i++) {
|
|
if (lt6911uxe->support_modes[i].interlace == lt6911uxe->timings.bt.interlaced) {
|
|
dist = lt6911uxe_get_reso_dist(<6911uxe->support_modes[i],
|
|
<6911uxe->timings);
|
|
if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
|
|
cur_best_fit_dist = dist;
|
|
cur_best_fit = i;
|
|
}
|
|
}
|
|
}
|
|
dev_info(<6911uxe->i2c_client->dev,
|
|
"find current mode: support_mode[%d], %dx%d%s%dfps\n",
|
|
cur_best_fit, lt6911uxe->support_modes[cur_best_fit].width,
|
|
lt6911uxe->support_modes[cur_best_fit].height,
|
|
lt6911uxe->support_modes[cur_best_fit].interlace ? "I" : "P",
|
|
DIV_ROUND_CLOSEST(lt6911uxe->support_modes[cur_best_fit].max_fps.denominator,
|
|
lt6911uxe->support_modes[cur_best_fit].max_fps.numerator));
|
|
|
|
return <6911uxe->support_modes[cur_best_fit];
|
|
}
|
|
|
|
static int lt6911uxe_get_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_state *sd_state,
|
|
struct v4l2_subdev_format *format)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
const struct lt6911uxe_mode *mode;
|
|
|
|
mutex_lock(<6911uxe->confctl_mutex);
|
|
format->format.code = lt6911uxe->mbus_fmt_code;
|
|
format->format.width = lt6911uxe->timings.bt.width;
|
|
format->format.height = lt6911uxe->timings.bt.height;
|
|
format->format.field =
|
|
lt6911uxe->timings.bt.interlaced ?
|
|
V4L2_FIELD_INTERLACED : V4L2_FIELD_NONE;
|
|
format->format.colorspace = V4L2_COLORSPACE_SRGB;
|
|
mutex_unlock(<6911uxe->confctl_mutex);
|
|
|
|
mode = lt6911uxe_find_best_fit(lt6911uxe);
|
|
lt6911uxe->cur_mode = mode;
|
|
|
|
__v4l2_ctrl_s_ctrl_int64(lt6911uxe->pixel_rate,
|
|
LT6911UXE_PIXEL_RATE);
|
|
__v4l2_ctrl_s_ctrl(lt6911uxe->link_freq,
|
|
mode->mipi_freq_idx);
|
|
|
|
v4l2_dbg(1, debug, sd, "%s: mode->mipi_freq_idx(%d)", __func__, mode->mipi_freq_idx);
|
|
|
|
v4l2_dbg(1, debug, sd, "%s: fmt code:%d, w:%d, h:%d, field code:%d\n",
|
|
__func__, format->format.code, format->format.width,
|
|
format->format.height, format->format.field);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_set_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_state *sd_state,
|
|
struct v4l2_subdev_format *format)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
const struct lt6911uxe_mode *mode;
|
|
|
|
/* is overwritten by get_fmt */
|
|
u32 code = format->format.code;
|
|
int ret = lt6911uxe_get_fmt(sd, sd_state, format);
|
|
|
|
format->format.code = code;
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
switch (code) {
|
|
case LT6911UXE_MEDIA_BUS_FMT:
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (format->which == V4L2_SUBDEV_FORMAT_TRY)
|
|
return 0;
|
|
|
|
lt6911uxe->mbus_fmt_code = format->format.code;
|
|
mode = lt6911uxe_find_best_fit(lt6911uxe);
|
|
lt6911uxe->cur_mode = mode;
|
|
|
|
enable_stream(sd, false);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_g_frame_interval(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_frame_interval *fi)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
const struct lt6911uxe_mode *mode = lt6911uxe->cur_mode;
|
|
|
|
mutex_lock(<6911uxe->confctl_mutex);
|
|
fi->interval = mode->max_fps;
|
|
mutex_unlock(<6911uxe->confctl_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void lt6911uxe_get_module_inf(struct lt6911uxe *lt6911uxe,
|
|
struct rkmodule_inf *inf)
|
|
{
|
|
memset(inf, 0, sizeof(*inf));
|
|
strscpy(inf->base.sensor, LT6911UXE_NAME, sizeof(inf->base.sensor));
|
|
strscpy(inf->base.module, lt6911uxe->module_name, sizeof(inf->base.module));
|
|
strscpy(inf->base.lens, lt6911uxe->len_name, sizeof(inf->base.lens));
|
|
}
|
|
|
|
static long lt6911uxe_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
long ret = 0;
|
|
struct rkmodule_csi_dphy_param *dphy_param;
|
|
struct rkmodule_capture_info *capture_info;
|
|
|
|
switch (cmd) {
|
|
case RKMODULE_GET_MODULE_INFO:
|
|
lt6911uxe_get_module_inf(lt6911uxe, (struct rkmodule_inf *)arg);
|
|
break;
|
|
case RKMODULE_GET_HDMI_MODE:
|
|
*(int *)arg = RKMODULE_HDMIIN_MODE;
|
|
break;
|
|
case RKMODULE_SET_CSI_DPHY_PARAM:
|
|
dphy_param = (struct rkmodule_csi_dphy_param *)arg;
|
|
if (dphy_param->vendor == PHY_VENDOR_SAMSUNG)
|
|
rk3588_dcphy_param = *dphy_param;
|
|
dev_dbg(<6911uxe->i2c_client->dev,
|
|
"sensor set dphy param\n");
|
|
break;
|
|
case RKMODULE_GET_CSI_DPHY_PARAM:
|
|
dphy_param = (struct rkmodule_csi_dphy_param *)arg;
|
|
*dphy_param = rk3588_dcphy_param;
|
|
dev_dbg(<6911uxe->i2c_client->dev,
|
|
"sensor get dphy param\n");
|
|
break;
|
|
case RKMODULE_GET_CAPTURE_MODE:
|
|
capture_info = (struct rkmodule_capture_info *)arg;
|
|
if (lt6911uxe->dual_mipi_port) {
|
|
v4l2_dbg(1, debug, sd, "enable dual mipi mode\n");
|
|
capture_info->mode = RKMODULE_MULTI_DEV_COMBINE_ONE;
|
|
capture_info->multi_dev = lt6911uxe->multi_dev_info;
|
|
} else {
|
|
capture_info->mode = 0;
|
|
capture_info->multi_dev = lt6911uxe->multi_dev_info;
|
|
}
|
|
break;
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int lt6911uxe_s_power(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
int ret = 0;
|
|
|
|
mutex_lock(<6911uxe->confctl_mutex);
|
|
|
|
if (lt6911uxe->power_on == !!on)
|
|
goto unlock_and_return;
|
|
|
|
if (on)
|
|
lt6911uxe->power_on = true;
|
|
else
|
|
lt6911uxe->power_on = false;
|
|
|
|
unlock_and_return:
|
|
mutex_unlock(<6911uxe->confctl_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
static long lt6911uxe_compat_ioctl32(struct v4l2_subdev *sd,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
void __user *up = compat_ptr(arg);
|
|
struct rkmodule_inf *inf;
|
|
long ret;
|
|
int *seq;
|
|
struct rkmodule_csi_dphy_param *dphy_param;
|
|
struct rkmodule_capture_info *capture_info;
|
|
|
|
switch (cmd) {
|
|
case RKMODULE_GET_MODULE_INFO:
|
|
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
|
|
if (!inf) {
|
|
ret = -ENOMEM;
|
|
return ret;
|
|
}
|
|
|
|
ret = lt6911uxe_ioctl(sd, cmd, inf);
|
|
if (!ret) {
|
|
ret = copy_to_user(up, inf, sizeof(*inf));
|
|
if (ret)
|
|
ret = -EFAULT;
|
|
}
|
|
kfree(inf);
|
|
break;
|
|
case RKMODULE_GET_HDMI_MODE:
|
|
seq = kzalloc(sizeof(*seq), GFP_KERNEL);
|
|
if (!seq) {
|
|
ret = -ENOMEM;
|
|
return ret;
|
|
}
|
|
|
|
ret = lt6911uxe_ioctl(sd, cmd, seq);
|
|
if (!ret) {
|
|
ret = copy_to_user(up, seq, sizeof(*seq));
|
|
if (ret)
|
|
ret = -EFAULT;
|
|
}
|
|
kfree(seq);
|
|
break;
|
|
case RKMODULE_SET_CSI_DPHY_PARAM:
|
|
dphy_param = kzalloc(sizeof(*dphy_param), GFP_KERNEL);
|
|
if (!dphy_param) {
|
|
ret = -ENOMEM;
|
|
return ret;
|
|
}
|
|
|
|
ret = copy_from_user(dphy_param, up, sizeof(*dphy_param));
|
|
if (!ret)
|
|
ret = lt6911uxe_ioctl(sd, cmd, dphy_param);
|
|
else
|
|
ret = -EFAULT;
|
|
kfree(dphy_param);
|
|
break;
|
|
case RKMODULE_GET_CSI_DPHY_PARAM:
|
|
dphy_param = kzalloc(sizeof(*dphy_param), GFP_KERNEL);
|
|
if (!dphy_param) {
|
|
ret = -ENOMEM;
|
|
return ret;
|
|
}
|
|
|
|
ret = lt6911uxe_ioctl(sd, cmd, dphy_param);
|
|
if (!ret) {
|
|
ret = copy_to_user(up, dphy_param, sizeof(*dphy_param));
|
|
if (ret)
|
|
ret = -EFAULT;
|
|
}
|
|
kfree(dphy_param);
|
|
break;
|
|
case RKMODULE_GET_CAPTURE_MODE:
|
|
capture_info = kzalloc(sizeof(*capture_info), GFP_KERNEL);
|
|
if (!capture_info) {
|
|
ret = -ENOMEM;
|
|
return ret;
|
|
}
|
|
|
|
ret = lt6911uxe_ioctl(sd, cmd, capture_info);
|
|
if (!ret) {
|
|
ret = copy_to_user(up, capture_info, sizeof(*capture_info));
|
|
if (ret)
|
|
ret = -EFAULT;
|
|
}
|
|
kfree(capture_info);
|
|
break;
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
static int lt6911uxe_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
|
|
{
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
struct v4l2_mbus_framefmt *try_fmt =
|
|
v4l2_subdev_get_try_format(sd, fh->state, 0);
|
|
const struct lt6911uxe_mode *def_mode = <6911uxe->support_modes[0];
|
|
|
|
mutex_lock(<6911uxe->confctl_mutex);
|
|
/* Initialize try_fmt */
|
|
try_fmt->width = def_mode->width;
|
|
try_fmt->height = def_mode->height;
|
|
try_fmt->code = LT6911UXE_MEDIA_BUS_FMT;
|
|
try_fmt->field = V4L2_FIELD_NONE;
|
|
mutex_unlock(<6911uxe->confctl_mutex);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
static const struct v4l2_subdev_internal_ops lt6911uxe_internal_ops = {
|
|
.open = lt6911uxe_open,
|
|
};
|
|
#endif
|
|
|
|
static const struct v4l2_subdev_core_ops lt6911uxe_core_ops = {
|
|
.s_power = lt6911uxe_s_power,
|
|
.interrupt_service_routine = lt6911uxe_isr,
|
|
.subscribe_event = lt6911uxe_subscribe_event,
|
|
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
|
|
.ioctl = lt6911uxe_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl32 = lt6911uxe_compat_ioctl32,
|
|
#endif
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops lt6911uxe_video_ops = {
|
|
.g_input_status = lt6911uxe_g_input_status,
|
|
.s_dv_timings = lt6911uxe_s_dv_timings,
|
|
.g_dv_timings = lt6911uxe_g_dv_timings,
|
|
.query_dv_timings = lt6911uxe_query_dv_timings,
|
|
.s_stream = lt6911uxe_s_stream,
|
|
.g_frame_interval = lt6911uxe_g_frame_interval,
|
|
};
|
|
|
|
static const struct v4l2_subdev_pad_ops lt6911uxe_pad_ops = {
|
|
.enum_mbus_code = lt6911uxe_enum_mbus_code,
|
|
.enum_frame_size = lt6911uxe_enum_frame_sizes,
|
|
.enum_frame_interval = lt6911uxe_enum_frame_interval,
|
|
.set_fmt = lt6911uxe_set_fmt,
|
|
.get_fmt = lt6911uxe_get_fmt,
|
|
.enum_dv_timings = lt6911uxe_enum_dv_timings,
|
|
.dv_timings_cap = lt6911uxe_dv_timings_cap,
|
|
.get_mbus_config = lt6911uxe_g_mbus_config,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops lt6911uxe_ops = {
|
|
.core = <6911uxe_core_ops,
|
|
.video = <6911uxe_video_ops,
|
|
.pad = <6911uxe_pad_ops,
|
|
};
|
|
|
|
static const struct v4l2_ctrl_config lt6911uxe_ctrl_audio_sampling_rate = {
|
|
.id = RK_V4L2_CID_AUDIO_SAMPLING_RATE,
|
|
.name = "Audio sampling rate",
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.min = 0,
|
|
.max = 768000,
|
|
.step = 1,
|
|
.def = 0,
|
|
.flags = V4L2_CTRL_FLAG_READ_ONLY,
|
|
};
|
|
|
|
static const struct v4l2_ctrl_config lt6911uxe_ctrl_audio_present = {
|
|
.id = RK_V4L2_CID_AUDIO_PRESENT,
|
|
.name = "Audio present",
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
.min = 0,
|
|
.max = 1,
|
|
.step = 1,
|
|
.def = 0,
|
|
.flags = V4L2_CTRL_FLAG_READ_ONLY,
|
|
};
|
|
|
|
static void lt6911uxe_reset(struct lt6911uxe *lt6911uxe)
|
|
{
|
|
gpiod_set_value(lt6911uxe->reset_gpio, 0);
|
|
usleep_range(2000, 2100);
|
|
gpiod_set_value(lt6911uxe->reset_gpio, 1);
|
|
usleep_range(120*1000, 121*1000);
|
|
gpiod_set_value(lt6911uxe->reset_gpio, 0);
|
|
usleep_range(300*1000, 310*1000);
|
|
}
|
|
|
|
static int lt6911uxe_init_v4l2_ctrls(struct lt6911uxe *lt6911uxe)
|
|
{
|
|
const struct lt6911uxe_mode *mode;
|
|
struct v4l2_subdev *sd;
|
|
int ret;
|
|
|
|
mode = lt6911uxe->cur_mode;
|
|
sd = <6911uxe->sd;
|
|
ret = v4l2_ctrl_handler_init(<6911uxe->hdl, 5);
|
|
if (ret)
|
|
return ret;
|
|
|
|
lt6911uxe->link_freq = v4l2_ctrl_new_int_menu(<6911uxe->hdl, NULL,
|
|
V4L2_CID_LINK_FREQ,
|
|
ARRAY_SIZE(link_freq_menu_items) - 1, 0,
|
|
link_freq_menu_items);
|
|
lt6911uxe->pixel_rate = v4l2_ctrl_new_std(<6911uxe->hdl, NULL,
|
|
V4L2_CID_PIXEL_RATE,
|
|
0, LT6911UXE_PIXEL_RATE, 1, LT6911UXE_PIXEL_RATE);
|
|
|
|
lt6911uxe->detect_tx_5v_ctrl = v4l2_ctrl_new_std(<6911uxe->hdl,
|
|
NULL, V4L2_CID_DV_RX_POWER_PRESENT,
|
|
0, 1, 0, 0);
|
|
|
|
lt6911uxe->audio_sampling_rate_ctrl =
|
|
v4l2_ctrl_new_custom(<6911uxe->hdl,
|
|
<6911uxe_ctrl_audio_sampling_rate, NULL);
|
|
lt6911uxe->audio_present_ctrl = v4l2_ctrl_new_custom(<6911uxe->hdl,
|
|
<6911uxe_ctrl_audio_present, NULL);
|
|
|
|
sd->ctrl_handler = <6911uxe->hdl;
|
|
if (lt6911uxe->hdl.error) {
|
|
ret = lt6911uxe->hdl.error;
|
|
v4l2_err(sd, "cfg v4l2 ctrls failed! ret:%d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
__v4l2_ctrl_s_ctrl(lt6911uxe->link_freq, mode->mipi_freq_idx);
|
|
__v4l2_ctrl_s_ctrl_int64(lt6911uxe->pixel_rate, LT6911UXE_PIXEL_RATE);
|
|
|
|
if (lt6911uxe_update_controls(sd)) {
|
|
ret = -ENODEV;
|
|
v4l2_err(sd, "update v4l2 ctrls failed! ret:%d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
static int lt6911uxe_probe_of(struct lt6911uxe *lt6911uxe)
|
|
{
|
|
struct device *dev = <6911uxe->i2c_client->dev;
|
|
struct device_node *node = dev->of_node;
|
|
struct device_node *ep;
|
|
int ret;
|
|
|
|
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
|
|
<6911uxe->module_index);
|
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
|
|
<6911uxe->module_facing);
|
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
|
|
<6911uxe->module_name);
|
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
|
|
<6911uxe->len_name);
|
|
if (ret) {
|
|
dev_err(dev, "could not get module information!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
lt6911uxe->power_gpio = devm_gpiod_get_optional(dev, "power",
|
|
GPIOD_OUT_LOW);
|
|
if (IS_ERR(lt6911uxe->power_gpio)) {
|
|
dev_err(dev, "failed to get power gpio\n");
|
|
ret = PTR_ERR(lt6911uxe->power_gpio);
|
|
return ret;
|
|
}
|
|
|
|
lt6911uxe->reset_gpio = devm_gpiod_get_optional(dev, "reset",
|
|
GPIOD_OUT_HIGH);
|
|
if (IS_ERR(lt6911uxe->reset_gpio)) {
|
|
dev_err(dev, "failed to get reset gpio\n");
|
|
ret = PTR_ERR(lt6911uxe->reset_gpio);
|
|
return ret;
|
|
}
|
|
|
|
lt6911uxe->plugin_det_gpio = devm_gpiod_get_optional(dev, "plugin-det",
|
|
GPIOD_IN);
|
|
if (IS_ERR(lt6911uxe->plugin_det_gpio)) {
|
|
dev_err(dev, "failed to get plugin det gpio\n");
|
|
ret = PTR_ERR(lt6911uxe->plugin_det_gpio);
|
|
return ret;
|
|
}
|
|
|
|
ep = of_graph_get_next_endpoint(dev->of_node, NULL);
|
|
if (!ep) {
|
|
dev_err(dev, "missing endpoint node\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep),
|
|
<6911uxe->bus_cfg);
|
|
if (ret) {
|
|
dev_err(dev, "failed to parse endpoint\n");
|
|
goto put_node;
|
|
}
|
|
|
|
lt6911uxe->support_modes = supported_modes_dphy;
|
|
lt6911uxe->cfg_num = ARRAY_SIZE(supported_modes_dphy);
|
|
|
|
lt6911uxe->xvclk = devm_clk_get(dev, "xvclk");
|
|
if (IS_ERR(lt6911uxe->xvclk)) {
|
|
dev_err(dev, "failed to get xvclk\n");
|
|
ret = -EINVAL;
|
|
goto put_node;
|
|
}
|
|
|
|
ret = clk_prepare_enable(lt6911uxe->xvclk);
|
|
if (ret) {
|
|
dev_err(dev, "Failed! to enable xvclk\n");
|
|
goto put_node;
|
|
}
|
|
|
|
lt6911uxe->enable_hdcp = false;
|
|
|
|
gpiod_set_value(lt6911uxe->power_gpio, 1);
|
|
lt6911uxe_reset(lt6911uxe);
|
|
|
|
ret = 0;
|
|
|
|
put_node:
|
|
of_node_put(ep);
|
|
return ret;
|
|
}
|
|
#else
|
|
static inline int lt6911uxe_probe_of(struct lt6911uxe *state)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
static int lt6911uxe_check_chip_id(struct lt6911uxe *lt6911uxe)
|
|
{
|
|
struct device *dev = <6911uxe->i2c_client->dev;
|
|
struct v4l2_subdev *sd = <6911uxe->sd;
|
|
u8 id_h, id_l;
|
|
u32 chipid;
|
|
int ret = 0;
|
|
|
|
lt6911uxe_i2c_enable(sd);
|
|
id_l = i2c_rd8(sd, CHIPID_REGL);
|
|
id_h = i2c_rd8(sd, CHIPID_REGH);
|
|
lt6911uxe_i2c_disable(sd);
|
|
|
|
chipid = (id_h << 8) | id_l;
|
|
if (chipid != LT6911UXE_CHIPID) {
|
|
dev_err(dev, "chipid err, read:%#x, expect:%#x\n",
|
|
chipid, LT6911UXE_CHIPID);
|
|
return -EINVAL;
|
|
}
|
|
dev_info(dev, "check chipid ok, id:%#x", chipid);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int lt6911uxe_get_multi_dev_info(struct lt6911uxe *lt6911uxe)
|
|
{
|
|
struct device *dev = <6911uxe->i2c_client->dev;
|
|
struct device_node *node = dev->of_node;
|
|
struct device_node *multi_info_np;
|
|
|
|
lt6911uxe->dual_mipi_port = false;
|
|
multi_info_np = of_get_child_by_name(node, "multi-dev-info");
|
|
if (!multi_info_np) {
|
|
dev_info(dev, "failed to get multi dev info\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
of_property_read_u32(multi_info_np, "dev-idx-l",
|
|
<6911uxe->multi_dev_info.dev_idx[0]);
|
|
of_property_read_u32(multi_info_np, "dev-idx-r",
|
|
<6911uxe->multi_dev_info.dev_idx[1]);
|
|
of_property_read_u32(multi_info_np, "combine-idx",
|
|
<6911uxe->multi_dev_info.combine_idx[0]);
|
|
of_property_read_u32(multi_info_np, "pixel-offset",
|
|
<6911uxe->multi_dev_info.pixel_offset);
|
|
of_property_read_u32(multi_info_np, "dev-num",
|
|
<6911uxe->multi_dev_info.dev_num);
|
|
|
|
lt6911uxe->dual_mipi_port = true;
|
|
dev_info(dev,
|
|
"multi dev left: mipi%d, multi dev right: mipi%d, combile mipi%d, dev num: %d\n",
|
|
lt6911uxe->multi_dev_info.dev_idx[0], lt6911uxe->multi_dev_info.dev_idx[1],
|
|
lt6911uxe->multi_dev_info.combine_idx[0], lt6911uxe->multi_dev_info.dev_num);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lt6911uxe_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct v4l2_dv_timings default_timing =
|
|
V4L2_DV_BT_CEA_640X480P59_94;
|
|
struct lt6911uxe *lt6911uxe;
|
|
struct v4l2_subdev *sd;
|
|
struct device *dev = &client->dev;
|
|
char facing[2];
|
|
int err;
|
|
|
|
dev_info(dev, "driver version: %02x.%02x.%02x",
|
|
DRIVER_VERSION >> 16,
|
|
(DRIVER_VERSION & 0xff00) >> 8,
|
|
DRIVER_VERSION & 0x00ff);
|
|
|
|
lt6911uxe = devm_kzalloc(dev, sizeof(struct lt6911uxe), GFP_KERNEL);
|
|
if (!lt6911uxe)
|
|
return -ENOMEM;
|
|
|
|
sd = <6911uxe->sd;
|
|
lt6911uxe->i2c_client = client;
|
|
lt6911uxe->mbus_fmt_code = LT6911UXE_MEDIA_BUS_FMT;
|
|
|
|
err = lt6911uxe_probe_of(lt6911uxe);
|
|
if (err) {
|
|
v4l2_err(sd, "lt6911uxe_parse_of failed! err:%d\n", err);
|
|
return err;
|
|
}
|
|
|
|
lt6911uxe->timings = default_timing;
|
|
lt6911uxe->cur_mode = <6911uxe->support_modes[0];
|
|
|
|
err = lt6911uxe_get_multi_dev_info(lt6911uxe);
|
|
if (err)
|
|
v4l2_info(sd, "get multi dev info failed, not use dual mipi mode\n");
|
|
|
|
err = lt6911uxe_check_chip_id(lt6911uxe);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
mutex_init(<6911uxe->confctl_mutex);
|
|
err = lt6911uxe_init_v4l2_ctrls(lt6911uxe);
|
|
if (err)
|
|
goto err_free_hdl;
|
|
|
|
client->flags |= I2C_CLIENT_SCCB;
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
v4l2_i2c_subdev_init(sd, client, <6911uxe_ops);
|
|
sd->internal_ops = <6911uxe_internal_ops;
|
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
|
|
#endif
|
|
|
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
|
lt6911uxe->pad.flags = MEDIA_PAD_FL_SOURCE;
|
|
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
|
|
err = media_entity_pads_init(&sd->entity, 1, <6911uxe->pad);
|
|
if (err < 0) {
|
|
v4l2_err(sd, "media entity init failed! err:%d\n", err);
|
|
goto err_free_hdl;
|
|
}
|
|
#endif
|
|
memset(facing, 0, sizeof(facing));
|
|
if (strcmp(lt6911uxe->module_facing, "back") == 0)
|
|
facing[0] = 'b';
|
|
else
|
|
facing[0] = 'f';
|
|
|
|
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
|
|
lt6911uxe->module_index, facing,
|
|
LT6911UXE_NAME, dev_name(sd->dev));
|
|
err = v4l2_async_register_subdev_sensor(sd);
|
|
if (err < 0) {
|
|
v4l2_err(sd, "v4l2 register subdev failed! err:%d\n", err);
|
|
goto err_clean_entity;
|
|
}
|
|
|
|
INIT_DELAYED_WORK(<6911uxe->delayed_work_hotplug,
|
|
lt6911uxe_delayed_work_hotplug);
|
|
INIT_DELAYED_WORK(<6911uxe->delayed_work_res_change,
|
|
lt6911uxe_delayed_work_res_change);
|
|
|
|
if (lt6911uxe->i2c_client->irq) {
|
|
v4l2_dbg(1, debug, sd, "cfg lt6911uxe irq!\n");
|
|
err = devm_request_threaded_irq(dev,
|
|
lt6911uxe->i2c_client->irq,
|
|
NULL, lt6911uxe_res_change_irq_handler,
|
|
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
|
|
"lt6911uxe", lt6911uxe);
|
|
if (err) {
|
|
v4l2_err(sd, "request irq failed! err:%d\n", err);
|
|
goto err_work_queues;
|
|
}
|
|
} else {
|
|
v4l2_dbg(1, debug, sd, "no irq, cfg poll!\n");
|
|
INIT_WORK(<6911uxe->work_i2c_poll, lt6911uxe_work_i2c_poll);
|
|
timer_setup(<6911uxe->timer, lt6911uxe_irq_poll_timer, 0);
|
|
lt6911uxe->timer.expires = jiffies +
|
|
msecs_to_jiffies(POLL_INTERVAL_MS);
|
|
add_timer(<6911uxe->timer);
|
|
}
|
|
|
|
lt6911uxe->plugin_irq = gpiod_to_irq(lt6911uxe->plugin_det_gpio);
|
|
if (lt6911uxe->plugin_irq < 0)
|
|
dev_err(dev, "failed to get plugin det irq, maybe no use\n");
|
|
|
|
err = devm_request_threaded_irq(dev, lt6911uxe->plugin_irq, NULL,
|
|
plugin_detect_irq_handler, IRQF_TRIGGER_FALLING |
|
|
IRQF_TRIGGER_RISING | IRQF_ONESHOT, "lt6911uxe",
|
|
lt6911uxe);
|
|
if (err)
|
|
dev_err(dev, "failed to register plugin det irq (%d), maybe no use\n", err);
|
|
|
|
err = v4l2_ctrl_handler_setup(sd->ctrl_handler);
|
|
if (err) {
|
|
v4l2_err(sd, "v4l2 ctrl handler setup failed! err:%d\n", err);
|
|
goto err_work_queues;
|
|
}
|
|
enable_stream(sd, false);
|
|
v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
|
|
client->addr << 1, client->adapter->name);
|
|
|
|
return 0;
|
|
|
|
err_work_queues:
|
|
if (!lt6911uxe->i2c_client->irq)
|
|
flush_work(<6911uxe->work_i2c_poll);
|
|
cancel_delayed_work(<6911uxe->delayed_work_hotplug);
|
|
cancel_delayed_work(<6911uxe->delayed_work_res_change);
|
|
err_clean_entity:
|
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
|
media_entity_cleanup(&sd->entity);
|
|
#endif
|
|
err_free_hdl:
|
|
v4l2_ctrl_handler_free(<6911uxe->hdl);
|
|
mutex_destroy(<6911uxe->confctl_mutex);
|
|
return err;
|
|
}
|
|
|
|
static void lt6911uxe_remove(struct i2c_client *client)
|
|
{
|
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
struct lt6911uxe *lt6911uxe = to_lt6911uxe(sd);
|
|
|
|
if (!lt6911uxe->i2c_client->irq) {
|
|
del_timer_sync(<6911uxe->timer);
|
|
flush_work(<6911uxe->work_i2c_poll);
|
|
}
|
|
cancel_delayed_work_sync(<6911uxe->delayed_work_hotplug);
|
|
cancel_delayed_work_sync(<6911uxe->delayed_work_res_change);
|
|
v4l2_async_unregister_subdev(sd);
|
|
v4l2_device_unregister_subdev(sd);
|
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
|
media_entity_cleanup(&sd->entity);
|
|
#endif
|
|
v4l2_ctrl_handler_free(<6911uxe->hdl);
|
|
mutex_destroy(<6911uxe->confctl_mutex);
|
|
clk_disable_unprepare(lt6911uxe->xvclk);
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_OF)
|
|
static const struct of_device_id lt6911uxe_of_match[] = {
|
|
{ .compatible = "lontium,lt6911uxe" },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, lt6911uxe_of_match);
|
|
#endif
|
|
|
|
static struct i2c_driver lt6911uxe_driver = {
|
|
.driver = {
|
|
.name = LT6911UXE_NAME,
|
|
.of_match_table = of_match_ptr(lt6911uxe_of_match),
|
|
},
|
|
.probe = lt6911uxe_probe,
|
|
.remove = lt6911uxe_remove,
|
|
};
|
|
|
|
static int __init lt6911uxe_driver_init(void)
|
|
{
|
|
return i2c_add_driver(<6911uxe_driver);
|
|
}
|
|
|
|
static void __exit lt6911uxe_driver_exit(void)
|
|
{
|
|
i2c_del_driver(<6911uxe_driver);
|
|
}
|
|
|
|
device_initcall_sync(lt6911uxe_driver_init);
|
|
module_exit(lt6911uxe_driver_exit);
|
|
|
|
MODULE_DESCRIPTION("Lontium lt6911uxe HDMI to CSI-2 bridge driver");
|
|
MODULE_AUTHOR("Jianwei Fan <jianwei.fan@rock-chips.com>");
|
|
MODULE_LICENSE("GPL");
|