| /* |
| * Copyright (C) 2012 Samsung Electronics |
| * |
| * Author: InKi Dae <inki.dae@samsung.com> |
| * Author: Donghwa Lee <dh09.lee@samsung.com> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef _DSIM_H |
| #define _DSIM_H |
| |
| #include <linux/list.h> |
| #include <linux/fb.h> |
| |
| #define PANEL_NAME_SIZE (32) |
| |
| enum mipi_dsim_interface_type { |
| DSIM_COMMAND, |
| DSIM_VIDEO |
| }; |
| |
| enum mipi_dsim_virtual_ch_no { |
| DSIM_VIRTUAL_CH_0, |
| DSIM_VIRTUAL_CH_1, |
| DSIM_VIRTUAL_CH_2, |
| DSIM_VIRTUAL_CH_3 |
| }; |
| |
| enum mipi_dsim_burst_mode_type { |
| DSIM_NON_BURST_SYNC_EVENT, |
| DSIM_BURST_SYNC_EVENT, |
| DSIM_NON_BURST_SYNC_PULSE, |
| DSIM_BURST, |
| DSIM_NON_VIDEO_MODE |
| }; |
| |
| enum mipi_dsim_no_of_data_lane { |
| DSIM_DATA_LANE_1, |
| DSIM_DATA_LANE_2, |
| DSIM_DATA_LANE_3, |
| DSIM_DATA_LANE_4 |
| }; |
| |
| enum mipi_dsim_byte_clk_src { |
| DSIM_PLL_OUT_DIV8, |
| DSIM_EXT_CLK_DIV8, |
| DSIM_EXT_CLK_BYPASS |
| }; |
| |
| enum mipi_dsim_pixel_format { |
| DSIM_CMD_3BPP, |
| DSIM_CMD_8BPP, |
| DSIM_CMD_12BPP, |
| DSIM_CMD_16BPP, |
| DSIM_VID_16BPP_565, |
| DSIM_VID_18BPP_666PACKED, |
| DSIM_18BPP_666LOOSELYPACKED, |
| DSIM_24BPP_888 |
| }; |
| |
| /* MIPI DSI Processor-to-Peripheral transaction types */ |
| enum { |
| MIPI_DSI_V_SYNC_START = 0x01, |
| MIPI_DSI_V_SYNC_END = 0x11, |
| MIPI_DSI_H_SYNC_START = 0x21, |
| MIPI_DSI_H_SYNC_END = 0x31, |
| |
| MIPI_DSI_COLOR_MODE_OFF = 0x02, |
| MIPI_DSI_COLOR_MODE_ON = 0x12, |
| MIPI_DSI_SHUTDOWN_PERIPHERAL = 0x22, |
| MIPI_DSI_TURN_ON_PERIPHERAL = 0x32, |
| |
| MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM = 0x03, |
| MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM = 0x13, |
| MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM = 0x23, |
| |
| MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM = 0x04, |
| MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM = 0x14, |
| MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM = 0x24, |
| |
| MIPI_DSI_DCS_SHORT_WRITE = 0x05, |
| MIPI_DSI_DCS_SHORT_WRITE_PARAM = 0x15, |
| |
| MIPI_DSI_DCS_READ = 0x06, |
| |
| MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE = 0x37, |
| |
| MIPI_DSI_END_OF_TRANSMISSION = 0x08, |
| |
| MIPI_DSI_NULL_PACKET = 0x09, |
| MIPI_DSI_BLANKING_PACKET = 0x19, |
| MIPI_DSI_GENERIC_LONG_WRITE = 0x29, |
| MIPI_DSI_DCS_LONG_WRITE = 0x39, |
| |
| MIPI_DSI_LOOSELY_PACKED_PIXEL_STREAM_YCBCR20 = 0x0c, |
| MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR24 = 0x1c, |
| MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR16 = 0x2c, |
| |
| MIPI_DSI_PACKED_PIXEL_STREAM_30 = 0x0d, |
| MIPI_DSI_PACKED_PIXEL_STREAM_36 = 0x1d, |
| MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR12 = 0x3d, |
| |
| MIPI_DSI_PACKED_PIXEL_STREAM_16 = 0x0e, |
| MIPI_DSI_PACKED_PIXEL_STREAM_18 = 0x1e, |
| MIPI_DSI_PIXEL_STREAM_3BYTE_18 = 0x2e, |
| MIPI_DSI_PACKED_PIXEL_STREAM_24 = 0x3e, |
| }; |
| |
| /* |
| * struct mipi_dsim_config - interface for configuring mipi-dsi controller. |
| * |
| * @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse. |
| * @eot_disable: enable or disable EoT packet in HS mode. |
| * @auto_vertical_cnt: specifies auto vertical count mode. |
| * in Video mode, the vertical line transition uses line counter |
| * configured by VSA, VBP, and Vertical resolution. |
| * If this bit is set to '1', the line counter does not use VSA and VBP |
| * registers.(in command mode, this variable is ignored) |
| * @hse: set horizontal sync event mode. |
| * In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC |
| * start packet to MIPI DSI slave at MIPI DSI spec1.1r02. |
| * this bit transfers HSYNC end packet in VSYNC pulse and Vporch area |
| * (in mommand mode, this variable is ignored) |
| * @hfp: specifies HFP disable mode. |
| * if this variable is set, DSI master ignores HFP area in VIDEO mode. |
| * (in command mode, this variable is ignored) |
| * @hbp: specifies HBP disable mode. |
| * if this variable is set, DSI master ignores HBP area in VIDEO mode. |
| * (in command mode, this variable is ignored) |
| * @hsa: specifies HSA disable mode. |
| * if this variable is set, DSI master ignores HSA area in VIDEO mode. |
| * (in command mode, this variable is ignored) |
| * @e_interface: specifies interface to be used.(CPU or RGB interface) |
| * @e_virtual_ch: specifies virtual channel number that main or |
| * sub diaplsy uses. |
| * @e_pixel_format: specifies pixel stream format for main or sub display. |
| * @e_burst_mode: selects Burst mode in Video mode. |
| * in Non-burst mode, RGB data area is filled with RGB data and NULL |
| * packets, according to input bandwidth of RGB interface. |
| * In Burst mode, RGB data area is filled with RGB data only. |
| * @e_no_data_lane: specifies data lane count to be used by Master. |
| * @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8) |
| * DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported. |
| * @pll_stable_time: specifies the PLL Timer for stability of the ganerated |
| * clock(System clock cycle base) |
| * if the timer value goes to 0x00000000, the clock stable bit of status |
| * and interrupt register is set. |
| * @esc_clk: specifies escape clock frequency for getting the escape clock |
| * prescaler value. |
| * @stop_holding_cnt: specifies the interval value between transmitting |
| * read packet(or write "set_tear_on" command) and BTA request. |
| * after transmitting read packet or write "set_tear_on" command, |
| * BTA requests to D-PHY automatically. this counter value specifies |
| * the interval between them. |
| * @bta_timeout: specifies the timer for BTA. |
| * this register specifies time out from BTA request to change |
| * the direction with respect to Tx escape clock. |
| * @rx_timeout: specifies the timer for LP Rx mode timeout. |
| * this register specifies time out on how long RxValid deasserts, |
| * after RxLpdt asserts with respect to Tx escape clock. |
| * - RxValid specifies Rx data valid indicator. |
| * - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode. |
| * - RxValid and RxLpdt specifies signal from D-PHY. |
| */ |
| struct mipi_dsim_config { |
| unsigned char auto_flush; |
| unsigned char eot_disable; |
| |
| unsigned char auto_vertical_cnt; |
| unsigned char hse; |
| unsigned char hfp; |
| unsigned char hbp; |
| unsigned char hsa; |
| |
| enum mipi_dsim_interface_type e_interface; |
| enum mipi_dsim_virtual_ch_no e_virtual_ch; |
| enum mipi_dsim_pixel_format e_pixel_format; |
| enum mipi_dsim_burst_mode_type e_burst_mode; |
| enum mipi_dsim_no_of_data_lane e_no_data_lane; |
| enum mipi_dsim_byte_clk_src e_byte_clk; |
| |
| /* |
| * =========================================== |
| * | P | M | S | MHz | |
| * ------------------------------------------- |
| * | 3 | 100 | 3 | 100 | |
| * | 3 | 100 | 2 | 200 | |
| * | 3 | 63 | 1 | 252 | |
| * | 4 | 100 | 1 | 300 | |
| * | 4 | 110 | 1 | 330 | |
| * | 12 | 350 | 1 | 350 | |
| * | 3 | 100 | 1 | 400 | |
| * | 4 | 150 | 1 | 450 | |
| * | 6 | 118 | 1 | 472 | |
| * | 3 | 120 | 1 | 480 | |
| * | 12 | 250 | 0 | 500 | |
| * | 4 | 100 | 0 | 600 | |
| * | 3 | 81 | 0 | 648 | |
| * | 3 | 88 | 0 | 704 | |
| * | 3 | 90 | 0 | 720 | |
| * | 3 | 100 | 0 | 800 | |
| * | 12 | 425 | 0 | 850 | |
| * | 4 | 150 | 0 | 900 | |
| * | 12 | 475 | 0 | 950 | |
| * | 6 | 250 | 0 | 1000 | |
| * ------------------------------------------- |
| */ |
| |
| /* |
| * pms could be calculated as the following. |
| * M * 24 / P * 2 ^ S = MHz |
| */ |
| unsigned char p; |
| unsigned short m; |
| unsigned char s; |
| |
| unsigned int pll_stable_time; |
| unsigned long esc_clk; |
| |
| unsigned short stop_holding_cnt; |
| unsigned char bta_timeout; |
| unsigned short rx_timeout; |
| }; |
| |
| /* |
| * struct mipi_dsim_device - global interface for mipi-dsi driver. |
| * |
| * @dsim_config: infomation for configuring mipi-dsi controller. |
| * @master_ops: callbacks to mipi-dsi operations. |
| * @dsim_lcd_dev: pointer to activated ddi device. |
| * (it would be registered by mipi-dsi driver.) |
| * @dsim_lcd_drv: pointer to activated_ddi driver. |
| * (it would be registered by mipi-dsi driver.) |
| * @state: specifies status of MIPI-DSI controller. |
| * the status could be RESET, INIT, STOP, HSCLKEN and ULPS. |
| * @data_lane: specifiec enabled data lane number. |
| * this variable would be set by driver according to e_no_data_lane |
| * automatically. |
| * @e_clk_src: select byte clock source. |
| * @pd: pointer to MIPI-DSI driver platform data. |
| */ |
| struct mipi_dsim_device { |
| struct mipi_dsim_config *dsim_config; |
| struct mipi_dsim_master_ops *master_ops; |
| struct mipi_dsim_lcd_device *dsim_lcd_dev; |
| struct mipi_dsim_lcd_driver *dsim_lcd_drv; |
| |
| unsigned int state; |
| unsigned int data_lane; |
| enum mipi_dsim_byte_clk_src e_clk_src; |
| |
| struct exynos_platform_mipi_dsim *pd; |
| }; |
| |
| /* |
| * struct exynos_platform_mipi_dsim - interface to platform data |
| * for mipi-dsi driver. |
| * |
| * @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver. |
| * lcd panel driver searched would be actived. |
| * @dsim_config: pointer of structure for configuring mipi-dsi controller. |
| * @lcd_panel_info: pointer for lcd panel specific structure. |
| * this structure specifies width, height, timing and polarity and so on. |
| * @lcd_power: callback pointer for enabling or disabling lcd power. |
| * @mipi_power: callback pointer for enabling or disabling mipi power. |
| * @phy_enable: pointer to a callback controlling D-PHY enable/reset |
| */ |
| struct exynos_platform_mipi_dsim { |
| char lcd_panel_name[PANEL_NAME_SIZE]; |
| |
| struct mipi_dsim_config *dsim_config; |
| void *lcd_panel_info; |
| |
| int (*lcd_power)(void); |
| int (*mipi_power)(void); |
| void (*phy_enable)(unsigned int dev_index, unsigned int enable); |
| }; |
| |
| /* |
| * struct mipi_dsim_master_ops - callbacks to mipi-dsi operations. |
| * |
| * @cmd_write: transfer command to lcd panel at LP mode. |
| * @cmd_read: read command from rx register. |
| * @get_dsim_frame_done: get the status that all screen data have been |
| * transferred to mipi-dsi. |
| * @clear_dsim_frame_done: clear frame done status. |
| * @get_fb_frame_done: get frame done status of display controller. |
| * @trigger: trigger display controller. |
| * - this one would be used only in case of CPU mode. |
| */ |
| struct mipi_dsim_master_ops { |
| int (*cmd_write)(struct mipi_dsim_device *dsim, unsigned int data_id, |
| unsigned int data0, unsigned int data1); |
| int (*cmd_read)(struct mipi_dsim_device *dsim, unsigned int data_id, |
| unsigned int data0, unsigned int data1); |
| int (*get_dsim_frame_done)(struct mipi_dsim_device *dsim); |
| int (*clear_dsim_frame_done)(struct mipi_dsim_device *dsim); |
| |
| int (*get_fb_frame_done)(void); |
| void (*trigger)(struct fb_info *info); |
| }; |
| |
| /* |
| * device structure for mipi-dsi based lcd panel. |
| * |
| * @name: name of the device to use with this device, or an |
| * alias for that name. |
| * @id: id of device to be registered. |
| * @bus_id: bus id for identifing connected bus |
| * and this bus id should be same as id of mipi_dsim_device. |
| * @master: pointer to mipi-dsi master device object. |
| * @platform_data: lcd panel specific platform data. |
| */ |
| struct mipi_dsim_lcd_device { |
| char *name; |
| int id; |
| int bus_id; |
| int reverse_panel; |
| |
| struct mipi_dsim_device *master; |
| void *platform_data; |
| }; |
| |
| /* |
| * driver structure for mipi-dsi based lcd panel. |
| * |
| * this structure should be registered by lcd panel driver. |
| * mipi-dsi driver seeks lcd panel registered through name field |
| * and calls these callback functions in appropriate time. |
| * |
| * @name: name of the driver to use with this device, or an |
| * alias for that name. |
| * @id: id of driver to be registered. |
| * this id would be used for finding device object registered. |
| * @mipi_panel_init: callback pointer for initializing lcd panel based on mipi |
| * dsi interface. |
| * @mipi_display_on: callback pointer for lcd panel display on. |
| */ |
| struct mipi_dsim_lcd_driver { |
| char *name; |
| int id; |
| |
| int (*mipi_panel_init)(struct mipi_dsim_device *dsim_dev); |
| void (*mipi_display_on)(struct mipi_dsim_device *dsim_dev); |
| }; |
| |
| #ifdef CONFIG_EXYNOS_MIPI_DSIM |
| int exynos_mipi_dsi_init(void); |
| #else |
| static inline int exynos_mipi_dsi_init(void) |
| { |
| return 0; |
| } |
| #endif |
| |
| /* |
| * register mipi_dsim_lcd_driver object defined by lcd panel driver |
| * to mipi-dsi driver. |
| */ |
| int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver |
| *lcd_drv); |
| |
| /* |
| * register mipi_dsim_lcd_device to mipi-dsi master. |
| */ |
| int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device |
| *lcd_dev); |
| |
| void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd); |
| |
| /* panel driver init based on mipi dsi interface */ |
| void s6e8ax0_init(void); |
| |
| #endif /* _DSIM_H */ |
