| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Andrzej Hajda | 639 | 47.02% | 2 | 3.64% |
| Thierry Reding | 238 | 17.51% | 18 | 32.73% |
| Doug Anderson | 110 | 8.09% | 2 | 3.64% |
| Archit Taneja | 73 | 5.37% | 4 | 7.27% |
| Dmitry Eremin-Solenikov | 68 | 5.00% | 4 | 7.27% |
| YoungJun Cho | 46 | 3.38% | 2 | 3.64% |
| Liu Ying | 43 | 3.16% | 1 | 1.82% |
| Jani Nikula | 21 | 1.55% | 1 | 1.82% |
| Joel Selvaraj | 17 | 1.25% | 1 | 1.82% |
| Vinay Simha BN | 16 | 1.18% | 2 | 3.64% |
| Jerome Brunet | 15 | 1.10% | 1 | 1.82% |
| Maxime Ripard | 13 | 0.96% | 3 | 5.45% |
| Javier Martinez Canillas | 12 | 0.88% | 2 | 3.64% |
| Linus Walleij | 8 | 0.59% | 1 | 1.82% |
| Werner Johansson | 6 | 0.44% | 1 | 1.82% |
| Inki Dae | 5 | 0.37% | 1 | 1.82% |
| Rex-BC Chen | 5 | 0.37% | 1 | 1.82% |
| Alexandre Courbot | 5 | 0.37% | 1 | 1.82% |
| Nicolas Boichat | 4 | 0.29% | 1 | 1.82% |
| Tomi Valkeinen | 4 | 0.29% | 1 | 1.82% |
| Greg Kroah-Hartman | 4 | 0.29% | 1 | 1.82% |
| Daniel Mentz | 3 | 0.22% | 1 | 1.82% |
| Thomas Gleixner | 2 | 0.15% | 1 | 1.82% |
| Uwe Kleine-König | 1 | 0.07% | 1 | 1.82% |
| Tejas Vipin | 1 | 0.07% | 1 | 1.82% |
| Total | 1359 | 55 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * MIPI DSI Bus * * Copyright (C) 2012-2013, Samsung Electronics, Co., Ltd. * Andrzej Hajda <a.hajda@samsung.com> */ #ifndef __DRM_MIPI_DSI_H__ #define __DRM_MIPI_DSI_H__ #include <linux/device.h> #include <linux/delay.h> struct mipi_dsi_host; struct mipi_dsi_device; struct drm_dsc_picture_parameter_set; /* request ACK from peripheral */ #define MIPI_DSI_MSG_REQ_ACK BIT(0) /* use Low Power Mode to transmit message */ #define MIPI_DSI_MSG_USE_LPM BIT(1) /** * struct mipi_dsi_msg - read/write DSI buffer * @channel: virtual channel id * @type: payload data type * @flags: flags controlling this message transmission * @tx_len: length of @tx_buf * @tx_buf: data to be written * @rx_len: length of @rx_buf * @rx_buf: data to be read, or NULL */ struct mipi_dsi_msg { u8 channel; u8 type; u16 flags; size_t tx_len; const void *tx_buf; size_t rx_len; void *rx_buf; }; bool mipi_dsi_packet_format_is_short(u8 type); bool mipi_dsi_packet_format_is_long(u8 type); /** * struct mipi_dsi_packet - represents a MIPI DSI packet in protocol format * @size: size (in bytes) of the packet * @header: the four bytes that make up the header (Data ID, Word Count or * Packet Data, and ECC) * @payload_length: number of bytes in the payload * @payload: a pointer to a buffer containing the payload, if any */ struct mipi_dsi_packet { size_t size; u8 header[4]; size_t payload_length; const u8 *payload; }; int mipi_dsi_create_packet(struct mipi_dsi_packet *packet, const struct mipi_dsi_msg *msg); /** * struct mipi_dsi_host_ops - DSI bus operations * @attach: attach DSI device to DSI host * @detach: detach DSI device from DSI host * @transfer: transmit a DSI packet * * DSI packets transmitted by .transfer() are passed in as mipi_dsi_msg * structures. This structure contains information about the type of packet * being transmitted as well as the transmit and receive buffers. When an * error is encountered during transmission, this function will return a * negative error code. On success it shall return the number of bytes * transmitted for write packets or the number of bytes received for read * packets. * * Note that typically DSI packet transmission is atomic, so the .transfer() * function will seldomly return anything other than the number of bytes * contained in the transmit buffer on success. * * Also note that those callbacks can be called no matter the state the * host is in. Drivers that need the underlying device to be powered to * perform these operations will first need to make sure it's been * properly enabled. */ struct mipi_dsi_host_ops { int (*attach)(struct mipi_dsi_host *host, struct mipi_dsi_device *dsi); int (*detach)(struct mipi_dsi_host *host, struct mipi_dsi_device *dsi); ssize_t (*transfer)(struct mipi_dsi_host *host, const struct mipi_dsi_msg *msg); }; /** * struct mipi_dsi_host - DSI host device * @dev: driver model device node for this DSI host * @ops: DSI host operations * @list: list management */ struct mipi_dsi_host { struct device *dev; const struct mipi_dsi_host_ops *ops; struct list_head list; }; int mipi_dsi_host_register(struct mipi_dsi_host *host); void mipi_dsi_host_unregister(struct mipi_dsi_host *host); struct mipi_dsi_host *of_find_mipi_dsi_host_by_node(struct device_node *node); /* DSI mode flags */ /* video mode */ #define MIPI_DSI_MODE_VIDEO BIT(0) /* video burst mode */ #define MIPI_DSI_MODE_VIDEO_BURST BIT(1) /* video pulse mode */ #define MIPI_DSI_MODE_VIDEO_SYNC_PULSE BIT(2) /* enable auto vertical count mode */ #define MIPI_DSI_MODE_VIDEO_AUTO_VERT BIT(3) /* enable hsync-end packets in vsync-pulse and v-porch area */ #define MIPI_DSI_MODE_VIDEO_HSE BIT(4) /* disable hfront-porch area */ #define MIPI_DSI_MODE_VIDEO_NO_HFP BIT(5) /* disable hback-porch area */ #define MIPI_DSI_MODE_VIDEO_NO_HBP BIT(6) /* disable hsync-active area */ #define MIPI_DSI_MODE_VIDEO_NO_HSA BIT(7) /* flush display FIFO on vsync pulse */ #define MIPI_DSI_MODE_VSYNC_FLUSH BIT(8) /* disable EoT packets in HS mode */ #define MIPI_DSI_MODE_NO_EOT_PACKET BIT(9) /* device supports non-continuous clock behavior (DSI spec 5.6.1) */ #define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10) /* transmit data in low power */ #define MIPI_DSI_MODE_LPM BIT(11) /* transmit data ending at the same time for all lanes within one hsync */ #define MIPI_DSI_HS_PKT_END_ALIGNED BIT(12) enum mipi_dsi_pixel_format { MIPI_DSI_FMT_RGB888, MIPI_DSI_FMT_RGB666, MIPI_DSI_FMT_RGB666_PACKED, MIPI_DSI_FMT_RGB565, }; #define DSI_DEV_NAME_SIZE 20 /** * struct mipi_dsi_device_info - template for creating a mipi_dsi_device * @type: DSI peripheral chip type * @channel: DSI virtual channel assigned to peripheral * @node: pointer to OF device node or NULL * * This is populated and passed to mipi_dsi_device_new to create a new * DSI device */ struct mipi_dsi_device_info { char type[DSI_DEV_NAME_SIZE]; u32 channel; struct device_node *node; }; /** * struct mipi_dsi_device - DSI peripheral device * @host: DSI host for this peripheral * @dev: driver model device node for this peripheral * @attached: the DSI device has been successfully attached * @name: DSI peripheral chip type * @channel: virtual channel assigned to the peripheral * @format: pixel format for video mode * @lanes: number of active data lanes * @mode_flags: DSI operation mode related flags * @hs_rate: maximum lane frequency for high speed mode in hertz, this should * be set to the real limits of the hardware, zero is only accepted for * legacy drivers * @lp_rate: maximum lane frequency for low power mode in hertz, this should * be set to the real limits of the hardware, zero is only accepted for * legacy drivers * @dsc: panel/bridge DSC pps payload to be sent */ struct mipi_dsi_device { struct mipi_dsi_host *host; struct device dev; bool attached; char name[DSI_DEV_NAME_SIZE]; unsigned int channel; unsigned int lanes; enum mipi_dsi_pixel_format format; unsigned long mode_flags; unsigned long hs_rate; unsigned long lp_rate; struct drm_dsc_config *dsc; }; /** * struct mipi_dsi_multi_context - Context to call multiple MIPI DSI funcs in a row */ struct mipi_dsi_multi_context { /** * @dsi: Pointer to the MIPI DSI device */ struct mipi_dsi_device *dsi; /** * @accum_err: Storage for the accumulated error over the multiple calls * * Init to 0. If a function encounters an error then the error code * will be stored here. If you call a function and this points to a * non-zero value then the function will be a noop. This allows calling * a function many times in a row and just checking the error at the * end to see if any of them failed. */ int accum_err; }; #define MIPI_DSI_MODULE_PREFIX "mipi-dsi:" #define to_mipi_dsi_device(__dev) container_of_const(__dev, struct mipi_dsi_device, dev) /** * mipi_dsi_pixel_format_to_bpp - obtain the number of bits per pixel for any * given pixel format defined by the MIPI DSI * specification * @fmt: MIPI DSI pixel format * * Returns: The number of bits per pixel of the given pixel format. */ static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt) { switch (fmt) { case MIPI_DSI_FMT_RGB888: case MIPI_DSI_FMT_RGB666: return 24; case MIPI_DSI_FMT_RGB666_PACKED: return 18; case MIPI_DSI_FMT_RGB565: return 16; } return -EINVAL; } enum mipi_dsi_compression_algo { MIPI_DSI_COMPRESSION_DSC = 0, MIPI_DSI_COMPRESSION_VENDOR = 3, /* other two values are reserved, DSI 1.3 */ }; struct mipi_dsi_device * mipi_dsi_device_register_full(struct mipi_dsi_host *host, const struct mipi_dsi_device_info *info); void mipi_dsi_device_unregister(struct mipi_dsi_device *dsi); struct mipi_dsi_device * devm_mipi_dsi_device_register_full(struct device *dev, struct mipi_dsi_host *host, const struct mipi_dsi_device_info *info); struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np); int mipi_dsi_attach(struct mipi_dsi_device *dsi); int mipi_dsi_detach(struct mipi_dsi_device *dsi); int devm_mipi_dsi_attach(struct device *dev, struct mipi_dsi_device *dsi); int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi); int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi); int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi, u16 value); int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable); int mipi_dsi_compression_mode_ext(struct mipi_dsi_device *dsi, bool enable, enum mipi_dsi_compression_algo algo, unsigned int pps_selector); int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi, const struct drm_dsc_picture_parameter_set *pps); void mipi_dsi_compression_mode_ext_multi(struct mipi_dsi_multi_context *ctx, bool enable, enum mipi_dsi_compression_algo algo, unsigned int pps_selector); void mipi_dsi_picture_parameter_set_multi(struct mipi_dsi_multi_context *ctx, const struct drm_dsc_picture_parameter_set *pps); ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload, size_t size); int mipi_dsi_generic_write_chatty(struct mipi_dsi_device *dsi, const void *payload, size_t size); void mipi_dsi_generic_write_multi(struct mipi_dsi_multi_context *ctx, const void *payload, size_t size); ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params, size_t num_params, void *data, size_t size); #define mipi_dsi_msleep(ctx, delay) \ do { \ if (!(ctx)->accum_err) \ msleep(delay); \ } while (0) #define mipi_dsi_usleep_range(ctx, min, max) \ do { \ if (!(ctx)->accum_err) \ usleep_range(min, max); \ } while (0) /** * enum mipi_dsi_dcs_tear_mode - Tearing Effect Output Line mode * @MIPI_DSI_DCS_TEAR_MODE_VBLANK: the TE output line consists of V-Blanking * information only * @MIPI_DSI_DCS_TEAR_MODE_VHBLANK : the TE output line consists of both * V-Blanking and H-Blanking information */ enum mipi_dsi_dcs_tear_mode { MIPI_DSI_DCS_TEAR_MODE_VBLANK, MIPI_DSI_DCS_TEAR_MODE_VHBLANK, }; #define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2) #define MIPI_DSI_DCS_POWER_MODE_NORMAL (1 << 3) #define MIPI_DSI_DCS_POWER_MODE_SLEEP (1 << 4) #define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5) #define MIPI_DSI_DCS_POWER_MODE_IDLE (1 << 6) ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi, const void *data, size_t len); int mipi_dsi_dcs_write_buffer_chatty(struct mipi_dsi_device *dsi, const void *data, size_t len); void mipi_dsi_dcs_write_buffer_multi(struct mipi_dsi_multi_context *ctx, const void *data, size_t len); ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd, const void *data, size_t len); ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data, size_t len); int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode); int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format); int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start, u16 end); int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start, u16 end); int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi, enum mipi_dsi_dcs_tear_mode mode); int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format); int mipi_dsi_dcs_set_tear_scanline(struct mipi_dsi_device *dsi, u16 scanline); int mipi_dsi_dcs_set_display_brightness(struct mipi_dsi_device *dsi, u16 brightness); int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi, u16 *brightness); int mipi_dsi_dcs_set_display_brightness_large(struct mipi_dsi_device *dsi, u16 brightness); int mipi_dsi_dcs_get_display_brightness_large(struct mipi_dsi_device *dsi, u16 *brightness); void mipi_dsi_dcs_nop_multi(struct mipi_dsi_multi_context *ctx); void mipi_dsi_dcs_enter_sleep_mode_multi(struct mipi_dsi_multi_context *ctx); void mipi_dsi_dcs_exit_sleep_mode_multi(struct mipi_dsi_multi_context *ctx); void mipi_dsi_dcs_set_display_off_multi(struct mipi_dsi_multi_context *ctx); void mipi_dsi_dcs_set_display_on_multi(struct mipi_dsi_multi_context *ctx); void mipi_dsi_dcs_set_tear_on_multi(struct mipi_dsi_multi_context *ctx, enum mipi_dsi_dcs_tear_mode mode); /** * mipi_dsi_generic_write_seq - transmit data using a generic write packet * * This macro will print errors for you and will RETURN FROM THE CALLING * FUNCTION (yes this is non-intuitive) upon error. * * Because of the non-intuitive return behavior, THIS MACRO IS DEPRECATED. * Please replace calls of it with mipi_dsi_generic_write_seq_multi(). * * @dsi: DSI peripheral device * @seq: buffer containing the payload */ #define mipi_dsi_generic_write_seq(dsi, seq...) \ do { \ static const u8 d[] = { seq }; \ int ret; \ ret = mipi_dsi_generic_write_chatty(dsi, d, ARRAY_SIZE(d)); \ if (ret < 0) \ return ret; \ } while (0) /** * mipi_dsi_generic_write_seq_multi - transmit data using a generic write packet * * This macro will print errors for you and error handling is optimized for * callers that call this multiple times in a row. * * @ctx: Context for multiple DSI transactions * @seq: buffer containing the payload */ #define mipi_dsi_generic_write_seq_multi(ctx, seq...) \ do { \ static const u8 d[] = { seq }; \ mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d)); \ } while (0) /** * mipi_dsi_dcs_write_seq - transmit a DCS command with payload * * This macro will print errors for you and will RETURN FROM THE CALLING * FUNCTION (yes this is non-intuitive) upon error. * * Because of the non-intuitive return behavior, THIS MACRO IS DEPRECATED. * Please replace calls of it with mipi_dsi_dcs_write_seq_multi(). * * @dsi: DSI peripheral device * @cmd: Command * @seq: buffer containing data to be transmitted */ #define mipi_dsi_dcs_write_seq(dsi, cmd, seq...) \ do { \ static const u8 d[] = { cmd, seq }; \ int ret; \ ret = mipi_dsi_dcs_write_buffer_chatty(dsi, d, ARRAY_SIZE(d)); \ if (ret < 0) \ return ret; \ } while (0) /** * mipi_dsi_dcs_write_seq_multi - transmit a DCS command with payload * * This macro will print errors for you and error handling is optimized for * callers that call this multiple times in a row. * * @ctx: Context for multiple DSI transactions * @cmd: Command * @seq: buffer containing data to be transmitted */ #define mipi_dsi_dcs_write_seq_multi(ctx, cmd, seq...) \ do { \ static const u8 d[] = { cmd, seq }; \ mipi_dsi_dcs_write_buffer_multi(ctx, d, ARRAY_SIZE(d)); \ } while (0) /** * struct mipi_dsi_driver - DSI driver * @driver: device driver model driver * @probe: callback for device binding * @remove: callback for device unbinding * @shutdown: called at shutdown time to quiesce the device */ struct mipi_dsi_driver { struct device_driver driver; int(*probe)(struct mipi_dsi_device *dsi); void (*remove)(struct mipi_dsi_device *dsi); void (*shutdown)(struct mipi_dsi_device *dsi); }; static inline struct mipi_dsi_driver * to_mipi_dsi_driver(struct device_driver *driver) { return container_of(driver, struct mipi_dsi_driver, driver); } static inline void *mipi_dsi_get_drvdata(const struct mipi_dsi_device *dsi) { return dev_get_drvdata(&dsi->dev); } static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data) { dev_set_drvdata(&dsi->dev, data); } int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver, struct module *owner); void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver); #define mipi_dsi_driver_register(driver) \ mipi_dsi_driver_register_full(driver, THIS_MODULE) #define module_mipi_dsi_driver(__mipi_dsi_driver) \ module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \ mipi_dsi_driver_unregister) #endif /* __DRM_MIPI_DSI__ */
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