mtk lcm driver

ProjectConfig.mk
CUSTOM_LK_LCM=hx8394a_hd720_dsi_vdo_tianma
CUSTOM_KERNEL_LCM=hx8394a_hd720_dsi_vdo_tianma

CUSTOM_UBOOT_LCM=hx8394a_hd720_dsi_vdo_tianma

LCM_HEIGHT=1280

LCM_WIDTH=720

PLL CLOCK:25M~625M.

PLL CLOCK=Frame_length x FPS/2;

mediatek/custom/common/kernel/lcm/

mt65xx_lcm_list.c

extern LCM_DRIVER hx8394a_hd720_dsi_vdo_tianma_lcm_drv;

LCM_DRIVER* lcm_driver_list[] =

{

#if defined(HX8394A_HD720_DSI_VDO_TIANMA)

    &hx8394a_hd720_dsi_vdo_tianma_lcm_drv,

#endif

}

lcm_drv.h

typedef struct

{

    const char* name;

    void (*set_util_funcs)(const LCM_UTIL_FUNCS *util);

    void (*get_params)(LCM_PARAMS *params);

    void (*init)(void);

    void (*suspend)(void);

    void (*resume)(void);

    // for power-on sequence refinement

    void (*init_power)(void);

    void (*suspend_power)(void);

    void (*resume_power)(void);

    void (*update)(unsigned int x, unsigned int y,

                   unsigned int width, unsigned int height);

    unsigned int (*compare_id)(void);

} LCM_DRIVER;

typedef struct

{

    LCM_TYPE type;

    LCM_CTRL ctrl;  //! how to control LCM registers

    /* common parameters */

    unsigned int width;

    unsigned int height;

    unsigned int io_select_mode; //DBI or DPI should select IO mode according to chip spec

    /* particular parameters */

    LCM_DBI_PARAMS dbi;

    LCM_DPI_PARAMS dpi;

    LCM_DSI_PARAMS dsi;

    unsigned int physical_width;

    unsigned int physical_height;

} LCM_PARAMS;

typedef enum

{

    LCM_TYPE_DBI = 0,

    LCM_TYPE_DPI,

    LCM_TYPE_DSI

} LCM_TYPE;

typedef struct

{

    void (*set_reset_pin)(unsigned int value);

    int  (*set_gpio_out)(unsigned int gpio, unsigned int value);

    void (*udelay)(unsigned int us);

    void (*mdelay)(unsigned int ms);

    void (*send_cmd)(unsigned int cmd);

    void (*send_data)(unsigned int data);

    unsigned int (*read_data)(void);

    void (*dsi_set_cmdq_V3)(LCM_setting_table_V3 *para_list, unsigned int size, unsigned char force_update);

    void (*dsi_set_cmdq_V2)(unsigned cmd, unsigned char count, unsigned char *para_list, unsigned char force_update);

    void (*dsi_set_cmdq)(unsigned int *pdata, unsigned int queue_size, unsigned char force_update);

    void (*dsi_write_cmd)(unsigned int cmd);

    void (*dsi_write_regs)(unsigned int addr, unsigned int *para, unsigned int nums);

    unsigned int (*dsi_read_reg)(void);

    unsigned int (*dsi_dcs_read_lcm_reg)(unsigned char cmd);

    unsigned int (*dsi_dcs_read_lcm_reg_v2)(unsigned char cmd, unsigned char *buffer, unsigned char buffer_size);

    void (*wait_transfer_done)(void);

    /** FIXME: GPIO mode should not be configured in lcm driver

               REMOVE ME after GPIO customization is done

    */

    int (*set_gpio_mode)(unsigned int pin, unsigned int mode);

    int (*set_gpio_dir)(unsigned int pin, unsigned int dir);

    int (*set_gpio_pull_enable)(unsigned int pin, unsigned char pull_en);

} LCM_UTIL_FUNCS;