--- /dev/null
+/*
+ * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc.
+ * Authors: York Sun <yorksun@freescale.com>
+ * Timur Tabi <timur@freescale.com>
+ *
+ * FSL DIU Framebuffer driver
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <asm/io.h>
+
+#include "videomodes.h"
+#include <video_fb.h>
+#include <fsl_diu_fb.h>
+#include <linux/list.h>
+#include <linux/fb.h>
+
+/* This setting is used for the ifm pdm360ng with PRIMEVIEW PM070WL3 */
+static struct fb_videomode fsl_diu_mode_800_480 = {
+ .name = "800x480-60",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = 31250,
+ .left_margin = 86,
+ .right_margin = 42,
+ .upper_margin = 33,
+ .lower_margin = 10,
+ .hsync_len = 128,
+ .vsync_len = 2,
+ .sync = 0,
+ .vmode = FB_VMODE_NONINTERLACED
+};
+
+/* For the SHARP LQ084S3LG01, used on the P1022DS board */
+static struct fb_videomode fsl_diu_mode_800_600 = {
+ .name = "800x600-60",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 600,
+ .pixclock = 25000,
+ .left_margin = 88,
+ .right_margin = 40,
+ .upper_margin = 23,
+ .lower_margin = 1,
+ .hsync_len = 128,
+ .vsync_len = 4,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+};
+
+/*
+ * These parameters give default parameters
+ * for video output 1024x768,
+ * FIXME - change timing to proper amounts
+ * hsync 31.5kHz, vsync 60Hz
+ */
+static struct fb_videomode fsl_diu_mode_1024_768 = {
+ .name = "1024x768-60",
+ .refresh = 60,
+ .xres = 1024,
+ .yres = 768,
+ .pixclock = 15385,
+ .left_margin = 160,
+ .right_margin = 24,
+ .upper_margin = 29,
+ .lower_margin = 3,
+ .hsync_len = 136,
+ .vsync_len = 6,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+};
+
+static struct fb_videomode fsl_diu_mode_1280_1024 = {
+ .name = "1280x1024-60",
+ .refresh = 60,
+ .xres = 1280,
+ .yres = 1024,
+ .pixclock = 9375,
+ .left_margin = 38,
+ .right_margin = 128,
+ .upper_margin = 2,
+ .lower_margin = 7,
+ .hsync_len = 216,
+ .vsync_len = 37,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+};
+
+static struct fb_videomode fsl_diu_mode_1280_720 = {
+ .name = "1280x720-60",
+ .refresh = 60,
+ .xres = 1280,
+ .yres = 720,
+ .pixclock = 13426,
+ .left_margin = 192,
+ .right_margin = 64,
+ .upper_margin = 22,
+ .lower_margin = 1,
+ .hsync_len = 136,
+ .vsync_len = 3,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+};
+
+static struct fb_videomode fsl_diu_mode_1920_1080 = {
+ .name = "1920x1080-60",
+ .refresh = 60,
+ .xres = 1920,
+ .yres = 1080,
+ .pixclock = 5787,
+ .left_margin = 328,
+ .right_margin = 120,
+ .upper_margin = 34,
+ .lower_margin = 1,
+ .hsync_len = 208,
+ .vsync_len = 3,
+ .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED
+};
+
+/*
+ * These are the fields of area descriptor(in DDR memory) for every plane
+ */
+struct diu_ad {
+ /* Word 0(32-bit) in DDR memory */
+ __le32 pix_fmt; /* hard coding pixel format */
+ /* Word 1(32-bit) in DDR memory */
+ __le32 addr;
+ /* Word 2(32-bit) in DDR memory */
+ __le32 src_size_g_alpha;
+ /* Word 3(32-bit) in DDR memory */
+ __le32 aoi_size;
+ /* Word 4(32-bit) in DDR memory */
+ __le32 offset_xyi;
+ /* Word 5(32-bit) in DDR memory */
+ __le32 offset_xyd;
+ /* Word 6(32-bit) in DDR memory */
+ __le32 ckmax_r:8;
+ __le32 ckmax_g:8;
+ __le32 ckmax_b:8;
+ __le32 res9:8;
+ /* Word 7(32-bit) in DDR memory */
+ __le32 ckmin_r:8;
+ __le32 ckmin_g:8;
+ __le32 ckmin_b:8;
+ __le32 res10:8;
+ /* Word 8(32-bit) in DDR memory */
+ __le32 next_ad;
+ /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
+ __le32 res[3];
+} __attribute__ ((packed));
+
+/*
+ * DIU register map
+ */
+struct diu {
+ __be32 desc[3];
+ __be32 gamma;
+ __be32 pallete;
+ __be32 cursor;
+ __be32 curs_pos;
+ __be32 diu_mode;
+ __be32 bgnd;
+ __be32 bgnd_wb;
+ __be32 disp_size;
+ __be32 wb_size;
+ __be32 wb_mem_addr;
+ __be32 hsyn_para;
+ __be32 vsyn_para;
+ __be32 syn_pol;
+ __be32 thresholds;
+ __be32 int_status;
+ __be32 int_mask;
+ __be32 colorbar[8];
+ __be32 filling;
+ __be32 plut;
+} __attribute__ ((packed));
+
+struct diu_addr {
+ void *vaddr; /* Virtual address */
+ u32 paddr; /* 32-bit physical address */
+ unsigned int offset; /* Alignment offset */
+};
+
+static struct fb_info info;
+
+/*
+ * Align to 64-bit(8-byte), 32-byte, etc.
+ */
+static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align)
+{
+ u32 offset, ssize;
+ u32 mask;
+
+ ssize = size + bytes_align;
+ buf->vaddr = malloc(ssize);
+ if (!buf->vaddr)
+ return -1;
+
+ memset(buf->vaddr, 0, ssize);
+ mask = bytes_align - 1;
+ offset = (u32)buf->vaddr & mask;
+ if (offset) {
+ buf->offset = bytes_align - offset;
+ buf->vaddr += offset;
+ } else
+ buf->offset = 0;
+
+ buf->paddr = virt_to_phys(buf->vaddr);
+ return 0;
+}
+
+/*
+ * Allocate a framebuffer and an Area Descriptor that points to it. Both
+ * are created in the same memory block. The Area Descriptor is updated to
+ * point to the framebuffer memory. Memory is aligned as needed.
+ */
+static struct diu_ad *allocate_fb(unsigned int xres, unsigned int yres,
+ unsigned int depth, char **fb)
+{
+ unsigned long size = xres * yres * depth;
+ struct diu_addr addr;
+ struct diu_ad *ad;
+ size_t ad_size = roundup(sizeof(struct diu_ad), 32);
+
+ /*
+ * Allocate a memory block that holds the Area Descriptor and the
+ * frame buffer right behind it. To keep the code simple, everything
+ * is aligned on a 32-byte address.
+ */
+ if (allocate_buf(&addr, ad_size + size, 32) < 0)
+ return NULL;
+
+ ad = addr.vaddr;
+ ad->addr = cpu_to_le32(addr.paddr + ad_size);
+ ad->aoi_size = cpu_to_le32((yres << 16) | xres);
+ ad->src_size_g_alpha = cpu_to_le32((yres << 12) | xres);
+ ad->offset_xyi = 0;
+ ad->offset_xyd = 0;
+
+ if (fb)
+ *fb = addr.vaddr + ad_size;
+
+ return ad;
+}
+
+int fsl_diu_init(u16 xres, u16 yres, u32 pixel_format, int gamma_fix)
+{
+ struct fb_videomode *fsl_diu_mode_db;
+ struct diu_ad *ad;
+ struct diu *hw = (struct diu *)CONFIG_SYS_DIU_ADDR;
+ u8 *gamma_table_base;
+ unsigned int i, j;
+ struct diu_addr gamma;
+ struct diu_addr cursor;
+
+/* Convert the X,Y resolution pair into a single number */
+#define RESOLUTION(x, y) (((u32)(x) << 16) | (y))
+
+ switch (RESOLUTION(xres, yres)) {
+ case RESOLUTION(800, 480):
+ fsl_diu_mode_db = &fsl_diu_mode_800_480;
+ break;
+ case RESOLUTION(800, 600):
+ fsl_diu_mode_db = &fsl_diu_mode_800_600;
+ break;
+ case RESOLUTION(1024, 768):
+ fsl_diu_mode_db = &fsl_diu_mode_1024_768;
+ break;
+ case RESOLUTION(1280, 1024):
+ fsl_diu_mode_db = &fsl_diu_mode_1280_1024;
+ break;
+ case RESOLUTION(1280, 720):
+ fsl_diu_mode_db = &fsl_diu_mode_1280_720;
+ break;
+ case RESOLUTION(1920, 1080):
+ fsl_diu_mode_db = &fsl_diu_mode_1920_1080;
+ break;
+ default:
+ printf("DIU: Unsupported resolution %ux%u\n", xres, yres);
+ return -1;
+ }
+
+ /* read mode info */
+ info.var.xres = fsl_diu_mode_db->xres;
+ info.var.yres = fsl_diu_mode_db->yres;
+ info.var.bits_per_pixel = 32;
+ info.var.pixclock = fsl_diu_mode_db->pixclock;
+ info.var.left_margin = fsl_diu_mode_db->left_margin;
+ info.var.right_margin = fsl_diu_mode_db->right_margin;
+ info.var.upper_margin = fsl_diu_mode_db->upper_margin;
+ info.var.lower_margin = fsl_diu_mode_db->lower_margin;
+ info.var.hsync_len = fsl_diu_mode_db->hsync_len;
+ info.var.vsync_len = fsl_diu_mode_db->vsync_len;
+ info.var.sync = fsl_diu_mode_db->sync;
+ info.var.vmode = fsl_diu_mode_db->vmode;
+ info.fix.line_length = info.var.xres * info.var.bits_per_pixel / 8;
+
+ /* Memory allocation for framebuffer */
+ info.screen_size =
+ info.var.xres * info.var.yres * (info.var.bits_per_pixel / 8);
+ ad = allocate_fb(info.var.xres, info.var.yres,
+ info.var.bits_per_pixel / 8, &info.screen_base);
+ if (!ad) {
+ printf("DIU: Out of memory\n");
+ return -1;
+ }
+
+ ad->pix_fmt = pixel_format;
+
+ /* Disable chroma keying function */
+ ad->ckmax_r = 0;
+ ad->ckmax_g = 0;
+ ad->ckmax_b = 0;
+
+ ad->ckmin_r = 255;
+ ad->ckmin_g = 255;
+ ad->ckmin_b = 255;
+
+ /* Initialize the gamma table */
+ if (allocate_buf(&gamma, 256 * 3, 32) < 0) {
+ printf("DIU: Out of memory\n");
+ return -1;
+ }
+ gamma_table_base = gamma.vaddr;
+ for (i = 0; i <= 2; i++)
+ for (j = 0; j < 256; j++)
+ *gamma_table_base++ = j;
+
+ if (gamma_fix == 1) { /* fix the gamma */
+ gamma_table_base = gamma.vaddr;
+ for (i = 0; i < 256 * 3; i++) {
+ gamma_table_base[i] = (gamma_table_base[i] << 2)
+ | ((gamma_table_base[i] >> 6) & 0x03);
+ }
+ }
+
+ /* Initialize the cursor */
+ if (allocate_buf(&cursor, 32 * 32 * 2, 32) < 0) {
+ printf("DIU: Can't alloc cursor data\n");
+ return -1;
+ }
+
+ /* Program DIU registers */
+ out_be32(&hw->diu_mode, 0); /* Temporarily disable the DIU */
+
+ out_be32(&hw->gamma, gamma.paddr);
+ out_be32(&hw->cursor, cursor.paddr);
+ out_be32(&hw->bgnd, 0x007F7F7F);
+ out_be32(&hw->disp_size, info.var.yres << 16 | info.var.xres);
+ out_be32(&hw->hsyn_para, info.var.left_margin << 22 |
+ info.var.hsync_len << 11 |
+ info.var.right_margin);
+
+ out_be32(&hw->vsyn_para, info.var.upper_margin << 22 |
+ info.var.vsync_len << 11 |
+ info.var.lower_margin);
+
+ /* Pixel Clock configuration */
+ diu_set_pixel_clock(info.var.pixclock);
+
+ /* Set the frame buffers */
+ out_be32(&hw->desc[0], virt_to_phys(ad));
+ out_be32(&hw->desc[1], 0);
+ out_be32(&hw->desc[2], 0);
+
+ /* Enable the DIU, set display to all three planes */
+ out_be32(&hw->diu_mode, 1);
+
+ return 0;
+}
+
+void *video_hw_init(void)
+{
+ static GraphicDevice ctfb;
+ const char *options;
+ unsigned int depth = 0, freq = 0;
+
+ if (!video_get_video_mode(&ctfb.winSizeX, &ctfb.winSizeY, &depth, &freq,
+ &options))
+ return NULL;
+
+ /* Find the monitor port, which is a required option */
+ if (!options)
+ return NULL;
+ if (strncmp(options, "monitor=", 8) != 0)
+ return NULL;
+
+ if (platform_diu_init(ctfb.winSizeX, ctfb.winSizeY, options + 8) < 0)
+ return NULL;
+
+ /* fill in Graphic device struct */
+ sprintf(ctfb.modeIdent, "%ix%ix%i %ikHz %iHz",
+ ctfb.winSizeX, ctfb.winSizeY, depth, 64, freq);
+
+ ctfb.frameAdrs = (unsigned int)info.screen_base;
+ ctfb.plnSizeX = ctfb.winSizeX;
+ ctfb.plnSizeY = ctfb.winSizeY;
+
+ ctfb.gdfBytesPP = 4;
+ ctfb.gdfIndex = GDF_32BIT_X888RGB;
+
+ ctfb.isaBase = 0;
+ ctfb.pciBase = 0;
+ ctfb.memSize = info.screen_size;
+
+ /* Cursor Start Address */
+ ctfb.dprBase = 0;
+ ctfb.vprBase = 0;
+ ctfb.cprBase = 0;
+
+ return &ctfb;
+}
Code Review / kvmfornfv.git / blobdiff