diff options
Diffstat (limited to 'board/st/u8500/mcde_display.c')
| -rw-r--r-- | board/st/u8500/mcde_display.c | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/board/st/u8500/mcde_display.c b/board/st/u8500/mcde_display.c new file mode 100644 index 000000000..40f7570d6 --- /dev/null +++ b/board/st/u8500/mcde_display.c @@ -0,0 +1,297 @@ +/* +* Copyright (C) ST-Ericsson SA 2010 +* +* Author: Jimmy Rubin <jimmy.rubin@stericsson.com> +* for ST-Ericsson. +* +* License terms: GNU General Public License (GPL), version 2. +*/ + + +#include <common.h> +#include <command.h> +#include "gpio.h" +#include "mcde_display.h" +#include "dsilink_regs.h" +#include <tc35892.h> +#include "mcde_regs.h" +#include <malloc.h> +#include "mcde.h" +#include <linux/err.h> +#include <asm/arch/ab8500.h> +#include "common.h" + +#ifdef CONFIG_SYS_VIDEO_USE_GIMP_HEADER +#include <asm/arch/mcde_video_logo_gimp.h> +#else +#include <asm/arch/mcde_video_logo.h> +#endif + +#define DEBUG 0 +#define dbg_printk(format, arg...) \ + if (DEBUG) \ + printf("mcde: " format, ##arg) \ + +static struct mcde_chnl_state *chnl; + +static struct mcde_port port0 = { + .type = MCDE_PORTTYPE_DSI, + .mode = MCDE_PORTMODE_CMD, + .ifc = 0, + .link = 0, + .sync_src = MCDE_SYNCSRC_BTA, + .phy = { + .dsi = { + .virt_id = 0, + .num_data_lanes = 2, + }, + }, +}; + +struct mcde_display_generic_platform_data main_display_data = { + .reset_gpio = TC35892_PIN_KPY7, + .reset_delay = 1, +}; + +struct mcde_display_device main_display = { + .port = &port0, + .chnl_id = MCDE_CHNL_C0, + .fifo = MCDE_FIFO_A, + .default_pixel_format = MCDE_OVLYPIXFMT_RGB565, + .port_pixel_format = MCDE_PORTPIXFMT_DSI_24BPP, + .native_x_res = 864, + .native_y_res = 480, +}; + +static int mcde_enable_gpio(void) +{ + int ret; + dbg_printk("Enable GPIO pins!\n"); + + /* Only main display should be initialized */ + ret = tc35892_gpio_dir(CONFIG_SYS_I2C_GPIOE_ADDR, + main_display_data.reset_gpio, 1); + if (ret) { + printf("%s:Could not set direction for gpio \n", __func__); + return -EINVAL; + } + ret = tc35892_gpio_set(CONFIG_SYS_I2C_GPIOE_ADDR, + main_display_data.reset_gpio, 0); + if (ret) { + printf("%s:Could reset gpio \n", __func__); + return -EINVAL; + } + mdelay(main_display_data.reset_delay); + ret = tc35892_gpio_set(CONFIG_SYS_I2C_GPIOE_ADDR, + main_display_data.reset_gpio, 1); + if (ret) { + printf("%s:Could set gpior\n", __func__); + return -EINVAL; + } + mdelay(main_display_data.reset_delay); + + dbg_printk("All needed GPIOS enabled!\n"); + return 0; +} + +#define DCS_CMD_EXIT_SLEEP_MODE 0x11 +#define DCS_CMD_SET_DISPLAY_ON 0x29 + +static int mcde_turn_on_display(void) +{ + int ret = 0; + dbg_printk("Turn on display!\n"); + ret = mcde_dsi_dcs_write(main_display.port, + DCS_CMD_EXIT_SLEEP_MODE, NULL, 0); + if (!ret) { + dbg_printk("mcde_dsi_dcs_write " + "DCS_CMD_EXIT_SLEEP_MODE success!\n"); + ret = mcde_dsi_dcs_write(main_display.port, + DCS_CMD_SET_DISPLAY_ON, NULL, 0); + if (!ret) + dbg_printk("mcde_dsi_dcs_write " + "DCS_CMD_SET_DISPLAY_ON success!\n"); + } + + return ret; +} + +#define LDO_VAUX1_MASK 0x1 +#define LDO_VAUX1_ENABLE 0x1 +#define VAUX1_VOLTAGE_2_5V 0x08 + +#define VANA_ENABLE_IN_HP_MODE 0x05 + +#define ENABLE_PWM1 0x01 +#define PWM_DUTY_LOW_1024_1024 0xFF +#define PWM_DUTY_HI_1024_1024 0x03 + +static int mcde_display_power_init(void) +{ + int ret; + int val; + + if (!cpu_is_u8500v11()) + return 0; + + /* Vaux12Regu */ + ret = ab8500_read(AB8500_REGU_CTRL2, AB8500_REGU_VAUX12_REGU_REG); + if (ret < 0) + goto out; + + val = ret; + + /* Vaux1 & Vaux2 HP mode */ + ret = ab8500_write(AB8500_REGU_CTRL2, AB8500_REGU_VAUX12_REGU_REG, + val | LDO_VAUX1_ENABLE); + if (ret < 0) + goto out; + + udelay(10 * 1000); + + /* Set the voltage to 2.5V */ + ret = ab8500_write(AB8500_REGU_CTRL2, + AB8500_REGU_VAUX1_SEL_REG, VAUX1_VOLTAGE_2_5V); + if (ret < 0) + goto out; + + /* DCI & CSI (DSI / PLL / Camera) */ /* Vana & Vpll HP mode */ + ab8500_write(AB8500_REGU_CTRL2, AB8500_REGU_VPLLVANA_REGU_REG, + VANA_ENABLE_IN_HP_MODE); + + /* Enable the PWM control for the backlight Main display */ + ab8500_write(AB8500_MISC, AB8500_PWM_OUT_CTRL7_REG, ENABLE_PWM1); + ab8500_write(AB8500_MISC, AB8500_PWM_OUT_CTRL1_REG, + PWM_DUTY_LOW_1024_1024); + ab8500_write(AB8500_MISC, AB8500_PWM_OUT_CTRL2_REG, + PWM_DUTY_HI_1024_1024); +out: + return ret; +} + + +int mcde_startup(void) +{ + u8 num_dsilinks; + int ret; + u32 i; + + num_dsilinks = main_display.port->phy.dsi.num_data_lanes; + mcde_init(num_dsilinks); + ret = mcde_display_power_init(); + if (ret) + goto display_power_failed; + mcde_enable_dss(); + + ret = mcde_enable_gpio(); + if (ret) + goto enable_gpio_failed; + + chnl = mcde_chnl_get(main_display.chnl_id, main_display.fifo, + main_display.port); + if (IS_ERR(chnl)) { + ret = PTR_ERR(chnl); + printf("%s:Failed to acquire MCDE channel\n", __func__); + goto get_chnl_failed; + } + + ret = mcde_turn_on_display(); + if (ret) + goto display_power_mode_failed; + mcde_chnl_set_update_area(chnl, 0, 0, main_display.native_x_res, + main_display.native_y_res); + mcde_chnl_set_pixel_format(chnl, main_display.port_pixel_format); + mcde_chnl_apply(chnl); + +display_power_mode_failed: +get_chnl_failed: +display_power_failed: +enable_gpio_failed: + mcde_exit(); + return ret; +} + +int mcde_display_image(void) +{ + struct mcde_ovly_state *ovly; + u32 xpos = 0; + u32 ypos = 0; + int ret; +#ifdef CONFIG_SYS_VIDEO_USE_GIMP_HEADER + u32 i = 0; + u8 pixels[3]; + u16 pixel; + u16 *sp; +#endif + + ovly = mcde_ovly_get(chnl); + if (IS_ERR(ovly)) { + ret = PTR_ERR(ovly); + printf("Failed to get channel\n"); + return -ret; + } + +#ifdef CONFIG_SYS_VIDEO_USE_GIMP_HEADER + /* Add the image data */ + sp = (u16 *)CONFIG_SYS_VIDEO_FB_ADRS; + for (i = 0; i < ((MCDE_VIDEO_LOGO_WIDTH*MCDE_VIDEO_LOGO_HEIGHT)); i++) { + HEADER_PIXEL(header_data, pixels); + pixels[0] >>= 3; /* Keep 5 bits red */ + pixels[1] >>= 2; /* 6 bits green */ + pixels[2] >>= 3; /* and 5 bits blue */ + pixel = (pixels[0] << 11) | (pixels[1] << 5) | pixels[2]; + *sp++ = pixel; + } + mcde_ovly_set_source_buf(ovly, CONFIG_SYS_VIDEO_FB_ADRS); +#else + mcde_ovly_set_source_buf(ovly, (u32)&mcde_video_logo[0]); +#endif + mcde_ovly_set_source_info(ovly, (MCDE_VIDEO_LOGO_WIDTH*2), + main_display.default_pixel_format); + mcde_ovly_set_source_area(ovly, 0, 0, MCDE_VIDEO_LOGO_WIDTH, + MCDE_VIDEO_LOGO_HEIGHT); + if (MCDE_VIDEO_LOGO_WIDTH == main_display.native_x_res) + xpos = 0; + else + xpos = (main_display.native_x_res - MCDE_VIDEO_LOGO_WIDTH) / 2; + + if (MCDE_VIDEO_LOGO_HEIGHT == main_display.native_y_res) + ypos = 0; + else + ypos = (main_display.native_y_res - MCDE_VIDEO_LOGO_HEIGHT) / 2; + + mcde_ovly_set_dest_pos(ovly, xpos, ypos, 0); + mcde_ovly_apply(ovly); + mcde_chnl_update(chnl); + /* Wait for refresh to be finished */ + mdelay(CONFIG_SYS_MCDE_REFRESH_TIME); + mcde_exit(); + return 0; +} + +/* + * command line commands + */ + + +int mcde_power_up(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + return mcde_startup(); +} + +int mcde_disply_bitmap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + return mcde_display_image(); +} + +U_BOOT_CMD( + mcde_power_up, 1, 1, mcde_power_up, + "Power up display", + "" +); + +U_BOOT_CMD( + mcde_display, 1, 1, mcde_disply_bitmap, + "Display bitmap", + "" +); |