diff options
Diffstat (limited to 'drivers/video/nexell_display.c')
| -rw-r--r-- | drivers/video/nexell_display.c | 651 |
1 files changed, 651 insertions, 0 deletions
diff --git a/drivers/video/nexell_display.c b/drivers/video/nexell_display.c new file mode 100644 index 0000000..4101e09 --- /dev/null +++ b/drivers/video/nexell_display.c @@ -0,0 +1,651 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2016 Nexell Co., Ltd. + * + * Author: junghyun, kim <jhkim@nexell.co.kr> + * + * Copyright (C) 2020 Stefan Bosch <stefan_b@posteo.net> + */ + +#include <config.h> +#include <common.h> +#include <command.h> +#include <dm.h> +#include <mapmem.h> +#include <malloc.h> +#include <linux/compat.h> +#include <linux/err.h> +#include <video.h> /* For struct video_uc_platdata */ +#include <video_fb.h> +#include <lcd.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/arch/display.h> +#include <asm/arch/display_dev.h> +#include "videomodes.h" + +DECLARE_GLOBAL_DATA_PTR; + +#if !defined(CONFIG_DM) && !defined(CONFIG_OF_CONTROL) +static struct nx_display_dev *dp_dev; +#endif + +static char *const dp_dev_str[] = { + [DP_DEVICE_RESCONV] = "RESCONV", + [DP_DEVICE_RGBLCD] = "LCD", + [DP_DEVICE_HDMI] = "HDMI", + [DP_DEVICE_MIPI] = "MiPi", + [DP_DEVICE_LVDS] = "LVDS", + [DP_DEVICE_CVBS] = "TVOUT", + [DP_DEVICE_DP0] = "DP0", + [DP_DEVICE_DP1] = "DP1", +}; + +#if CONFIG_IS_ENABLED(OF_CONTROL) +static void nx_display_parse_dp_sync(ofnode node, struct dp_sync_info *sync) +{ + sync->h_active_len = ofnode_read_s32_default(node, "h_active_len", 0); + sync->h_sync_width = ofnode_read_s32_default(node, "h_sync_width", 0); + sync->h_back_porch = ofnode_read_s32_default(node, "h_back_porch", 0); + sync->h_front_porch = ofnode_read_s32_default(node, "h_front_porch", 0); + sync->h_sync_invert = ofnode_read_s32_default(node, "h_sync_invert", 0); + sync->v_active_len = ofnode_read_s32_default(node, "v_active_len", 0); + sync->v_sync_width = ofnode_read_s32_default(node, "v_sync_width", 0); + sync->v_back_porch = ofnode_read_s32_default(node, "v_back_porch", 0); + sync->v_front_porch = ofnode_read_s32_default(node, "v_front_porch", 0); + sync->v_sync_invert = ofnode_read_s32_default(node, "v_sync_invert", 0); + sync->pixel_clock_hz = ofnode_read_s32_default(node, "pixel_clock_hz", 0); + + debug("DP: sync ->\n"); + debug("ha:%d, hs:%d, hb:%d, hf:%d, hi:%d\n", + sync->h_active_len, sync->h_sync_width, + sync->h_back_porch, sync->h_front_porch, sync->h_sync_invert); + debug("va:%d, vs:%d, vb:%d, vf:%d, vi:%d\n", + sync->v_active_len, sync->v_sync_width, + sync->v_back_porch, sync->v_front_porch, sync->v_sync_invert); +} + +static void nx_display_parse_dp_ctrl(ofnode node, struct dp_ctrl_info *ctrl) +{ + /* clock gen */ + ctrl->clk_src_lv0 = ofnode_read_s32_default(node, "clk_src_lv0", 0); + ctrl->clk_div_lv0 = ofnode_read_s32_default(node, "clk_div_lv0", 0); + ctrl->clk_src_lv1 = ofnode_read_s32_default(node, "clk_src_lv1", 0); + ctrl->clk_div_lv1 = ofnode_read_s32_default(node, "clk_div_lv1", 0); + + /* scan format */ + ctrl->interlace = ofnode_read_s32_default(node, "interlace", 0); + + /* syncgen format */ + ctrl->out_format = ofnode_read_s32_default(node, "out_format", 0); + ctrl->invert_field = ofnode_read_s32_default(node, "invert_field", 0); + ctrl->swap_RB = ofnode_read_s32_default(node, "swap_RB", 0); + ctrl->yc_order = ofnode_read_s32_default(node, "yc_order", 0); + + /* extern sync delay */ + ctrl->delay_mask = ofnode_read_s32_default(node, "delay_mask", 0); + ctrl->d_rgb_pvd = ofnode_read_s32_default(node, "d_rgb_pvd", 0); + ctrl->d_hsync_cp1 = ofnode_read_s32_default(node, "d_hsync_cp1", 0); + ctrl->d_vsync_fram = ofnode_read_s32_default(node, "d_vsync_fram", 0); + ctrl->d_de_cp2 = ofnode_read_s32_default(node, "d_de_cp2", 0); + + /* extern sync delay */ + ctrl->vs_start_offset = + ofnode_read_s32_default(node, "vs_start_offset", 0); + ctrl->vs_end_offset = ofnode_read_s32_default(node, "vs_end_offset", 0); + ctrl->ev_start_offset = + ofnode_read_s32_default(node, "ev_start_offset", 0); + ctrl->ev_end_offset = ofnode_read_s32_default(node, "ev_end_offset", 0); + + /* pad clock seletor */ + ctrl->vck_select = ofnode_read_s32_default(node, "vck_select", 0); + ctrl->clk_inv_lv0 = ofnode_read_s32_default(node, "clk_inv_lv0", 0); + ctrl->clk_delay_lv0 = ofnode_read_s32_default(node, "clk_delay_lv0", 0); + ctrl->clk_inv_lv1 = ofnode_read_s32_default(node, "clk_inv_lv1", 0); + ctrl->clk_delay_lv1 = ofnode_read_s32_default(node, "clk_delay_lv1", 0); + ctrl->clk_sel_div1 = ofnode_read_s32_default(node, "clk_sel_div1", 0); + + debug("DP: ctrl [%s] ->\n", + ctrl->interlace ? "Interlace" : " Progressive"); + debug("cs0:%d, cd0:%d, cs1:%d, cd1:%d\n", + ctrl->clk_src_lv0, ctrl->clk_div_lv0, + ctrl->clk_src_lv1, ctrl->clk_div_lv1); + debug("fmt:0x%x, inv:%d, swap:%d, yb:0x%x\n", + ctrl->out_format, ctrl->invert_field, + ctrl->swap_RB, ctrl->yc_order); + debug("dm:0x%x, drp:%d, dhs:%d, dvs:%d, dde:0x%x\n", + ctrl->delay_mask, ctrl->d_rgb_pvd, + ctrl->d_hsync_cp1, ctrl->d_vsync_fram, ctrl->d_de_cp2); + debug("vss:%d, vse:%d, evs:%d, eve:%d\n", + ctrl->vs_start_offset, ctrl->vs_end_offset, + ctrl->ev_start_offset, ctrl->ev_end_offset); + debug("sel:%d, i0:%d, d0:%d, i1:%d, d1:%d, s1:%d\n", + ctrl->vck_select, ctrl->clk_inv_lv0, ctrl->clk_delay_lv0, + ctrl->clk_inv_lv1, ctrl->clk_delay_lv1, ctrl->clk_sel_div1); +} + +static void nx_display_parse_dp_top_layer(ofnode node, struct dp_plane_top *top) +{ + top->screen_width = ofnode_read_s32_default(node, "screen_width", 0); + top->screen_height = ofnode_read_s32_default(node, "screen_height", 0); + top->video_prior = ofnode_read_s32_default(node, "video_prior", 0); + top->interlace = ofnode_read_s32_default(node, "interlace", 0); + top->back_color = ofnode_read_s32_default(node, "back_color", 0); + top->plane_num = DP_PLANS_NUM; + + debug("DP: top [%s] ->\n", + top->interlace ? "Interlace" : " Progressive"); + debug("w:%d, h:%d, prior:%d, bg:0x%x\n", + top->screen_width, top->screen_height, + top->video_prior, top->back_color); +} + +static void nx_display_parse_dp_layer(ofnode node, struct dp_plane_info *plane) +{ + plane->left = ofnode_read_s32_default(node, "left", 0); + plane->width = ofnode_read_s32_default(node, "width", 0); + plane->top = ofnode_read_s32_default(node, "top", 0); + plane->height = ofnode_read_s32_default(node, "height", 0); + plane->pixel_byte = ofnode_read_s32_default(node, "pixel_byte", 0); + plane->format = ofnode_read_s32_default(node, "format", 0); + plane->alpha_on = ofnode_read_s32_default(node, "alpha_on", 0); + plane->alpha_depth = ofnode_read_s32_default(node, "alpha", 0); + plane->tp_on = ofnode_read_s32_default(node, "tp_on", 0); + plane->tp_color = ofnode_read_s32_default(node, "tp_color", 0); + + /* enable layer */ + if (plane->fb_base) + plane->enable = 1; + else + plane->enable = 0; + + if (plane->fb_base == 0) { + printf("fail : dp plane.%d invalid fb base [0x%x] ->\n", + plane->layer, plane->fb_base); + return; + } + + debug("DP: plane.%d [0x%x] ->\n", plane->layer, plane->fb_base); + debug("f:0x%x, l:%d, t:%d, %d * %d, bpp:%d, a:%d(%d), t:%d(0x%x)\n", + plane->format, plane->left, plane->top, plane->width, + plane->height, plane->pixel_byte, plane->alpha_on, + plane->alpha_depth, plane->tp_on, plane->tp_color); +} + +static void nx_display_parse_dp_planes(ofnode node, + struct nx_display_dev *dp, + struct video_uc_platdata *plat) +{ + const char *name; + ofnode subnode; + + ofnode_for_each_subnode(subnode, node) { + name = ofnode_get_name(subnode); + + if (strcmp(name, "layer_top") == 0) + nx_display_parse_dp_top_layer(subnode, &dp->top); + + /* + * TODO: Is it sure that only one layer is used? Otherwise + * fb_base must be different? + */ + if (strcmp(name, "layer_0") == 0) { + dp->planes[0].fb_base = + (uint)map_sysmem(plat->base, plat->size); + debug("%s(): dp->planes[0].fb_base == 0x%x\n", __func__, + (uint)dp->planes[0].fb_base); + nx_display_parse_dp_layer(subnode, &dp->planes[0]); + } + + if (strcmp(name, "layer_1") == 0) { + dp->planes[1].fb_base = + (uint)map_sysmem(plat->base, plat->size); + debug("%s(): dp->planes[1].fb_base == 0x%x\n", __func__, + (uint)dp->planes[1].fb_base); + nx_display_parse_dp_layer(subnode, &dp->planes[1]); + } + + if (strcmp(name, "layer_2") == 0) { + dp->planes[2].fb_base = + (uint)map_sysmem(plat->base, plat->size); + debug("%s(): dp->planes[2].fb_base == 0x%x\n", __func__, + (uint)dp->planes[2].fb_base); + nx_display_parse_dp_layer(subnode, &dp->planes[2]); + } + } +} + +static int nx_display_parse_dp_lvds(ofnode node, struct nx_display_dev *dp) +{ + struct dp_lvds_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL); + + if (!dev) { + printf("failed to allocate display LVDS object.\n"); + return -ENOMEM; + } + + dp->device = dev; + + dev->lvds_format = ofnode_read_s32_default(node, "format", 0); + dev->pol_inv_hs = ofnode_read_s32_default(node, "pol_inv_hs", 0); + dev->pol_inv_vs = ofnode_read_s32_default(node, "pol_inv_vs", 0); + dev->pol_inv_de = ofnode_read_s32_default(node, "pol_inv_de", 0); + dev->pol_inv_ck = ofnode_read_s32_default(node, "pol_inv_ck", 0); + dev->voltage_level = ofnode_read_s32_default(node, "voltage_level", 0); + + if (!dev->voltage_level) + dev->voltage_level = DEF_VOLTAGE_LEVEL; + + debug("DP: LVDS -> %s, voltage LV:0x%x\n", + dev->lvds_format == DP_LVDS_FORMAT_VESA ? "VESA" : + dev->lvds_format == DP_LVDS_FORMAT_JEIDA ? "JEIDA" : "LOC", + dev->voltage_level); + debug("pol inv hs:%d, vs:%d, de:%d, ck:%d\n", + dev->pol_inv_hs, dev->pol_inv_vs, + dev->pol_inv_de, dev->pol_inv_ck); + + return 0; +} + +static int nx_display_parse_dp_rgb(ofnode node, struct nx_display_dev *dp) +{ + struct dp_rgb_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL); + + if (!dev) { + printf("failed to allocate display RGB LCD object.\n"); + return -ENOMEM; + } + dp->device = dev; + + dev->lcd_mpu_type = ofnode_read_s32_default(node, "lcd_mpu_type", 0); + + debug("DP: RGB -> MPU[%s]\n", dev->lcd_mpu_type ? "O" : "X"); + return 0; +} + +static int nx_display_parse_dp_mipi(ofnode node, struct nx_display_dev *dp) +{ + struct dp_mipi_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL); + + if (!dev) { + printf("failed to allocate display MiPi object.\n"); + return -ENOMEM; + } + dp->device = dev; + + dev->lp_bitrate = ofnode_read_s32_default(node, "lp_bitrate", 0); + dev->hs_bitrate = ofnode_read_s32_default(node, "hs_bitrate", 0); + dev->lpm_trans = 1; + dev->command_mode = 0; + + debug("DP: MIPI ->\n"); + debug("lp:%dmhz, hs:%dmhz\n", dev->lp_bitrate, dev->hs_bitrate); + + return 0; +} + +static int nx_display_parse_dp_hdmi(ofnode node, struct nx_display_dev *dp) +{ + struct dp_hdmi_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL); + + if (!dev) { + printf("failed to allocate display HDMI object.\n"); + return -ENOMEM; + } + dp->device = dev; + + dev->preset = ofnode_read_s32_default(node, "preset", 0); + + debug("DP: HDMI -> %d\n", dev->preset); + + return 0; +} + +static int nx_display_parse_dp_lcds(ofnode node, const char *type, + struct nx_display_dev *dp) +{ + if (strcmp(type, "lvds") == 0) { + dp->dev_type = DP_DEVICE_LVDS; + return nx_display_parse_dp_lvds(node, dp); + } else if (strcmp(type, "rgb") == 0) { + dp->dev_type = DP_DEVICE_RGBLCD; + return nx_display_parse_dp_rgb(node, dp); + } else if (strcmp(type, "mipi") == 0) { + dp->dev_type = DP_DEVICE_MIPI; + return nx_display_parse_dp_mipi(node, dp); + } else if (strcmp(type, "hdmi") == 0) { + dp->dev_type = DP_DEVICE_HDMI; + return nx_display_parse_dp_hdmi(node, dp); + } + + printf("%s: node %s unknown display type\n", __func__, + ofnode_get_name(node)); + return -EINVAL; + + return 0; +} + +#define DT_SYNC (1 << 0) +#define DT_CTRL (1 << 1) +#define DT_PLANES (1 << 2) +#define DT_DEVICE (1 << 3) + +static int nx_display_parse_dt(struct udevice *dev, + struct nx_display_dev *dp, + struct video_uc_platdata *plat) +{ + const char *name, *dtype; + int ret = 0; + unsigned int dt_status = 0; + ofnode subnode; + + if (!dev) + return -ENODEV; + + dp->module = dev_read_s32_default(dev, "module", -1); + if (dp->module == -1) + dp->module = dev_read_s32_default(dev, "index", 0); + + dtype = dev_read_string(dev, "lcd-type"); + + ofnode_for_each_subnode(subnode, dev_ofnode(dev)) { + name = ofnode_get_name(subnode); + + if (strcmp("dp-sync", name) == 0) { + dt_status |= DT_SYNC; + nx_display_parse_dp_sync(subnode, &dp->sync); + } + + if (strcmp("dp-ctrl", name) == 0) { + dt_status |= DT_CTRL; + nx_display_parse_dp_ctrl(subnode, &dp->ctrl); + } + + if (strcmp("dp-planes", name) == 0) { + dt_status |= DT_PLANES; + nx_display_parse_dp_planes(subnode, dp, plat); + } + + if (strcmp("dp-device", name) == 0) { + dt_status |= DT_DEVICE; + ret = nx_display_parse_dp_lcds(subnode, dtype, dp); + } + } + + if (dt_status != (DT_SYNC | DT_CTRL | DT_PLANES | DT_DEVICE)) { + printf("Not enough DT config for display [0x%x]\n", dt_status); + return -ENODEV; + } + + return ret; +} +#endif + +__weak int nx_display_fixup_dp(struct nx_display_dev *dp) +{ + return 0; +} + +static struct nx_display_dev *nx_display_setup(void) +{ + struct nx_display_dev *dp; + int i, ret; + int node = 0; + struct video_uc_platdata *plat = NULL; + + struct udevice *dev; + + /* call driver probe */ + debug("DT: uclass device call...\n"); + + ret = uclass_get_device(UCLASS_VIDEO, 0, &dev); + if (ret) { + debug("%s(): uclass_get_device(UCLASS_VIDEO, 0, &dev) != 0 --> return NULL\n", + __func__); + return NULL; + } + plat = dev_get_uclass_platdata(dev); + if (!dev) { + debug("%s(): dev_get_uclass_platdata(dev) == NULL --> return NULL\n", + __func__); + return NULL; + } + dp = dev_get_priv(dev); + if (!dp) { + debug("%s(): dev_get_priv(dev) == NULL --> return NULL\n", + __func__); + return NULL; + } + node = dev->node.of_offset; + + if (CONFIG_IS_ENABLED(OF_CONTROL)) { + ret = nx_display_parse_dt(dev, dp, plat); + if (ret) + goto err_setup; + } + + nx_display_fixup_dp(dp); + + for (i = 0; dp->top.plane_num > i; i++) { + dp->planes[i].layer = i; + if (dp->planes[i].enable && !dp->fb_plane) { + dp->fb_plane = &dp->planes[i]; + dp->fb_addr = dp->fb_plane->fb_base; + dp->depth = dp->fb_plane->pixel_byte; + } + } + + switch (dp->dev_type) { +#ifdef CONFIG_VIDEO_NX_RGB + case DP_DEVICE_RGBLCD: + nx_rgb_display(dp->module, + &dp->sync, &dp->ctrl, &dp->top, + dp->planes, (struct dp_rgb_dev *)dp->device); + break; +#endif +#ifdef CONFIG_VIDEO_NX_LVDS + case DP_DEVICE_LVDS: + nx_lvds_display(dp->module, + &dp->sync, &dp->ctrl, &dp->top, + dp->planes, (struct dp_lvds_dev *)dp->device); + break; +#endif +#ifdef CONFIG_VIDEO_NX_MIPI + case DP_DEVICE_MIPI: + nx_mipi_display(dp->module, + &dp->sync, &dp->ctrl, &dp->top, + dp->planes, (struct dp_mipi_dev *)dp->device); + break; +#endif +#ifdef CONFIG_VIDEO_NX_HDMI + case DP_DEVICE_HDMI: + nx_hdmi_display(dp->module, + &dp->sync, &dp->ctrl, &dp->top, + dp->planes, (struct dp_hdmi_dev *)dp->device); + break; +#endif + default: + printf("fail : not support lcd type %d !!!\n", dp->dev_type); + goto err_setup; + }; + + printf("LCD: [%s] dp.%d.%d %dx%d %dbpp FB:0x%08x\n", + dp_dev_str[dp->dev_type], dp->module, dp->fb_plane->layer, + dp->fb_plane->width, dp->fb_plane->height, dp->depth * 8, + dp->fb_addr); + + return dp; + +err_setup: + kfree(dp); + + return NULL; +} + +#if defined CONFIG_LCD + +/* default lcd */ +struct vidinfo panel_info = { + .vl_col = 320, .vl_row = 240, .vl_bpix = 32, +}; + +void lcd_ctrl_init(void *lcdbase) +{ + vidinfo_t *pi = &panel_info; + struct nx_display_dev *dp; + int bpix; + + dp = nx_display_setup(); + if (!dp) + return NULL; + + switch (dp->depth) { + case 2: + bpix = LCD_COLOR16; + break; + case 3: + case 4: + bpix = LCD_COLOR32; + break; + default: + printf("fail : not support LCD bit per pixel %d\n", + dp->depth * 8); + return NULL; + } + + dp->panel_info = pi; + + /* set resolution with config */ + pi->vl_bpix = bpix; + pi->vl_col = dp->fb_plane->width; + pi->vl_row = dp->fb_plane->height; + pi->priv = dp; + gd->fb_base = dp->fb_addr; +} + +void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue) +{ +} + +__weak void lcd_enable(void) +{ +} +#endif + +static int nx_display_probe(struct udevice *dev) +{ + struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev); + struct video_priv *uc_priv = dev_get_uclass_priv(dev); + struct nx_display_platdata *plat = dev_get_platdata(dev); + static GraphicDevice *graphic_device; + char addr[64]; + + debug("%s()\n", __func__); + + if (!dev) + return -EINVAL; + + if (!uc_plat) { + debug("%s(): video_uc_platdata *plat == NULL --> return -EINVAL\n", + __func__); + return -EINVAL; + } + + if (!uc_priv) { + debug("%s(): video_priv *uc_priv == NULL --> return -EINVAL\n", + __func__); + return -EINVAL; + } + + if (!plat) { + debug("%s(): nx_display_platdata *plat == NULL --> return -EINVAL\n", + __func__); + return -EINVAL; + } + + struct nx_display_dev *dp; + unsigned int pp_index = 0; + + dp = nx_display_setup(); + if (!dp) { + debug("%s(): nx_display_setup() == 0 --> return -EINVAL\n", + __func__); + return -EINVAL; + } + + switch (dp->depth) { + case 2: + pp_index = GDF_16BIT_565RGB; + uc_priv->bpix = VIDEO_BPP16; + break; + case 3: + /* There is no VIDEO_BPP24 because these values are of + * type video_log2_bpp + */ + case 4: + pp_index = GDF_32BIT_X888RGB; + uc_priv->bpix = VIDEO_BPP32; + break; + default: + printf("fail : not support LCD bit per pixel %d\n", + dp->depth * 8); + return -EINVAL; + } + + uc_priv->xsize = dp->fb_plane->width; + uc_priv->ysize = dp->fb_plane->height; + uc_priv->rot = 0; + + graphic_device = &dp->graphic_device; + graphic_device->frameAdrs = dp->fb_addr; + graphic_device->gdfIndex = pp_index; + graphic_device->gdfBytesPP = dp->depth; + graphic_device->winSizeX = dp->fb_plane->width; + graphic_device->winSizeY = dp->fb_plane->height; + graphic_device->plnSizeX = + graphic_device->winSizeX * graphic_device->gdfBytesPP; + + /* + * set environment variable "fb_addr" (frame buffer address), required + * for splash image. Because drv_video_init() in common/stdio.c is only + * called when CONFIG_VIDEO is set (and not if CONFIG_DM_VIDEO is set). + */ + sprintf(addr, "0x%x", dp->fb_addr); + debug("%s(): env_set(\"fb_addr\", %s) ...\n", __func__, addr); + env_set("fb_addr", addr); + + return 0; +} + +static int nx_display_bind(struct udevice *dev) +{ + struct video_uc_platdata *plat = dev_get_uclass_platdata(dev); + + debug("%s()\n", __func__); + + /* Datasheet S5p4418: + * Resolution up to 2048 x 1280, up to 12 Bit per color (HDMI) + * Actual (max.) size is 0x1000000 because in U-Boot nanopi2-2016.01 + * "#define CONFIG_FB_ADDR 0x77000000" and next address is + * "#define BMP_LOAD_ADDR 0x78000000" + */ + plat->size = 0x1000000; + + return 0; +} + +static const struct udevice_id nx_display_ids[] = { + {.compatible = "nexell,nexell-display", }, + {} +}; + +U_BOOT_DRIVER(nexell_display) = { + .name = "nexell-display", + .id = UCLASS_VIDEO, + .of_match = nx_display_ids, + .platdata_auto_alloc_size = + sizeof(struct nx_display_platdata), + .bind = nx_display_bind, + .probe = nx_display_probe, + .priv_auto_alloc_size = sizeof(struct nx_display_dev), +}; |