[U-Boot-Users] [PATCH/review] Blackfin: resurrect BF533-STAMP video splash driver
Mike Frysinger
vapier at gentoo.org
Wed Apr 9 08:33:16 CEST 2008
This video driver used to live in the Blackfin cpu directory, but it was
lost during the unification process. This brings it back.
Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
board/bf533-stamp/Makefile | 4 +-
board/bf533-stamp/video.c | 276 ++++++++++++++++++++++++++++++++++++++++++++
board/bf533-stamp/video.h | 25 ++++
3 files changed, 303 insertions(+), 2 deletions(-)
create mode 100644 board/bf533-stamp/video.c
create mode 100644 board/bf533-stamp/video.h
diff --git a/board/bf533-stamp/Makefile b/board/bf533-stamp/Makefile
index 1115df8..a759d9a 100644
--- a/board/bf533-stamp/Makefile
+++ b/board/bf533-stamp/Makefile
@@ -1,7 +1,7 @@
#
# U-boot - Makefile
#
-# Copyright (c) 2005-2007 Analog Device Inc.
+# Copyright (c) 2005-2008 Analog Device Inc.
#
# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
@@ -29,7 +29,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o spi_flash.o
+COBJS := $(BOARD).o spi_flash.o video.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/bf533-stamp/video.c b/board/bf533-stamp/video.c
new file mode 100644
index 0000000..6899930
--- /dev/null
+++ b/board/bf533-stamp/video.c
@@ -0,0 +1,276 @@
+/*
+ * (C) Copyright 2000
+ * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio at tin.it
+ * (C) Copyright 2002
+ * Wolfgang Denk, wd at denx.de
+ * (C) Copyright 2006
+ * Aubrey Li, aubrey.li at analog.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <stdarg.h>
+#include <common.h>
+#include <config.h>
+#include <malloc.h>
+#include <asm/blackfin.h>
+#include <asm/mach-common/bits/dma.h>
+#include <i2c.h>
+#include <linux/types.h>
+#include <devices.h>
+
+int gunzip(void *, int, unsigned char *, unsigned long *);
+
+#ifdef CONFIG_VIDEO
+
+#define DMA_SIZE16 2
+
+#include <asm/mach-common/bits/ppi.h>
+
+#define NTSC_FRAME_ADDR 0x06000000
+#include "video.h"
+
+/* NTSC OUTPUT SIZE 720 * 240 */
+#define VERTICAL 2
+#define HORIZONTAL 4
+
+int is_vblank_line(const int line)
+{
+ /*
+ * This array contains a single bit for each line in
+ * an NTSC frame.
+ */
+ if ((line <= 18) || (line >= 264 && line <= 281) || (line == 528))
+ return true;
+
+ return false;
+}
+
+int NTSC_framebuffer_init(char *base_address)
+{
+ const int NTSC_frames = 1;
+ const int NTSC_lines = 525;
+ char *dest = base_address;
+ int frame_num, line_num;
+
+ for (frame_num = 0; frame_num < NTSC_frames; ++frame_num) {
+ for (line_num = 1; line_num <= NTSC_lines; ++line_num) {
+ unsigned int code;
+ int offset = 0;
+ int i;
+
+ if (is_vblank_line(line_num))
+ offset++;
+
+ if (line_num > 266 || line_num < 3)
+ offset += 2;
+
+ /* Output EAV code */
+ code = SystemCodeMap[offset].EAV;
+ write_dest_byte((char)(code >> 24) & 0xff);
+ write_dest_byte((char)(code >> 16) & 0xff);
+ write_dest_byte((char)(code >> 8) & 0xff);
+ write_dest_byte((char)(code) & 0xff);
+
+ /* Output horizontal blanking */
+ for (i = 0; i < 67 * 2; ++i) {
+ write_dest_byte(0x80);
+ write_dest_byte(0x10);
+ }
+
+ /* Output SAV */
+ code = SystemCodeMap[offset].SAV;
+ write_dest_byte((char)(code >> 24) & 0xff);
+ write_dest_byte((char)(code >> 16) & 0xff);
+ write_dest_byte((char)(code >> 8) & 0xff);
+ write_dest_byte((char)(code) & 0xff);
+
+ /* Output empty horizontal data */
+ for (i = 0; i < 360 * 2; ++i) {
+ write_dest_byte(0x80);
+ write_dest_byte(0x10);
+ }
+ }
+ }
+
+ return dest - base_address;
+}
+
+void fill_frame(char *Frame, int Value)
+{
+ int *OddPtr32;
+ int OddLine;
+ int *EvenPtr32;
+ int EvenLine;
+ int i;
+ int *data;
+ int m, n;
+
+ /* fill odd and even frames */
+ for (OddLine = 22, EvenLine = 285; OddLine < 263; OddLine++, EvenLine++) {
+ OddPtr32 = (int *)((Frame + (OddLine * 1716)) + 276);
+ EvenPtr32 = (int *)((Frame + (EvenLine * 1716)) + 276);
+ for (i = 0; i < 360; i++, OddPtr32++, EvenPtr32++) {
+ *OddPtr32 = Value;
+ *EvenPtr32 = Value;
+ }
+ }
+
+ for (m = 0; m < VERTICAL; m++) {
+ data = (int *)u_boot_logo.data;
+ for (OddLine = (22 + m), EvenLine = (285 + m);
+ OddLine < (u_boot_logo.height * VERTICAL) + (22 + m);
+ OddLine += VERTICAL, EvenLine += VERTICAL) {
+ OddPtr32 = (int *)((Frame + ((OddLine) * 1716)) + 276);
+ EvenPtr32 =
+ (int *)((Frame + ((EvenLine) * 1716)) + 276);
+ for (i = 0; i < u_boot_logo.width / 2; i++) {
+ /* enlarge one pixel to m x n */
+ for (n = 0; n < HORIZONTAL; n++) {
+ *OddPtr32++ = *data;
+ *EvenPtr32++ = *data;
+ }
+ data++;
+ }
+ }
+ }
+}
+
+static int video_init(void)
+{
+ char *NTSCFrame;
+ NTSCFrame = (char *)NTSC_FRAME_ADDR;
+ NTSC_framebuffer_init(NTSCFrame);
+ fill_frame(NTSCFrame, BLUE);
+
+ *pPPI_CONTROL = 0x0082;
+ *pPPI_FRAME = 0x020D;
+
+ *pDMA0_START_ADDR = NTSCFrame;
+ *pDMA0_X_COUNT = 0x035A;
+ *pDMA0_X_MODIFY = 0x0002;
+ *pDMA0_Y_COUNT = 0x020D;
+ *pDMA0_Y_MODIFY = 0x0002;
+ *pDMA0_CONFIG = 0x1015;
+ *pPPI_CONTROL = 0x0083;
+ return 0;
+}
+
+static void dma_bitblit(void *dst, fastimage_t *logo, int x, int y)
+{
+ if (dcache_status())
+ blackfin_dcache_flush_range(logo->data, logo->data + logo->size);
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ /* Setup destination start address */
+ bfin_write_MDMA_D0_START_ADDR(dst + ((x & -2) * LCD_PIXEL_SIZE)
+ + (y * LCD_X_RES * LCD_PIXEL_SIZE));
+ /* Setup destination xcount */
+ bfin_write_MDMA_D0_X_COUNT(logo->width * LCD_PIXEL_SIZE / DMA_SIZE16);
+ /* Setup destination xmodify */
+ bfin_write_MDMA_D0_X_MODIFY(DMA_SIZE16);
+
+ /* Setup destination ycount */
+ bfin_write_MDMA_D0_Y_COUNT(logo->height);
+ /* Setup destination ymodify */
+ bfin_write_MDMA_D0_Y_MODIFY((LCD_X_RES - logo->width) * LCD_PIXEL_SIZE + DMA_SIZE16);
+
+
+ /* Setup Source start address */
+ bfin_write_MDMA_S0_START_ADDR(logo->data);
+ /* Setup Source xcount */
+ bfin_write_MDMA_S0_X_COUNT(logo->width * LCD_PIXEL_SIZE / DMA_SIZE16);
+ /* Setup Source xmodify */
+ bfin_write_MDMA_S0_X_MODIFY(DMA_SIZE16);
+
+ /* Setup Source ycount */
+ bfin_write_MDMA_S0_Y_COUNT(logo->height);
+ /* Setup Source ymodify */
+ bfin_write_MDMA_S0_Y_MODIFY(DMA_SIZE16);
+
+
+ /* Enable source DMA */
+ bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_16 | DMA2D);
+ SSYNC();
+ bfin_write_MDMA_D0_CONFIG(WNR | DMAEN | WDSIZE_16 | DMA2D);
+
+ while (bfin_read_MDMA_D0_IRQ_STATUS() & DMA_RUN);
+
+ bfin_write_MDMA_S0_IRQ_STATUS(bfin_read_MDMA_S0_IRQ_STATUS() | DMA_DONE | DMA_ERR);
+ bfin_write_MDMA_D0_IRQ_STATUS(bfin_read_MDMA_D0_IRQ_STATUS() | DMA_DONE | DMA_ERR);
+
+}
+
+void video_putc(const char c)
+{
+}
+
+void video_puts(const char *s)
+{
+}
+
+int drv_video_init(void)
+{
+ int error, devices = 1;
+ device_t videodev;
+
+ u8 *dst;
+ u32 fbmem_size = LCD_X_RES * LCD_Y_RES * LCD_PIXEL_SIZE + ACTIVE_VIDEO_MEM_OFFSET;
+
+ dst = malloc(fbmem_size);
+
+ if (dst == NULL) {
+ printf("Failed to alloc FB memory\n");
+ return -1;
+ }
+
+#ifdef EASYLOGO_ENABLE_GZIP
+ unsigned char *data = EASYLOGO_DECOMP_BUFFER;
+ unsigned long src_len = EASYLOGO_ENABLE_GZIP;
+ if (gunzip(data, bfin_logo.size, bfin_logo.data, &src_len)) {
+ puts("Failed to decompress logo\n");
+ free(dst);
+ return -1;
+ }
+ bfin_logo.data = data;
+#endif
+
+ memset(dst + ACTIVE_VIDEO_MEM_OFFSET, bfin_logo.data[0], fbmem_size - ACTIVE_VIDEO_MEM_OFFSET);
+
+ dma_bitblit(dst + ACTIVE_VIDEO_MEM_OFFSET, &bfin_logo,
+ (LCD_X_RES - bfin_logo.width) / 2,
+ (LCD_Y_RES - bfin_logo.height) / 2);
+
+ video_init(dst); /* Video initialization */
+
+ memset(&videodev, 0, sizeof(videodev));
+
+ strcpy(videodev.name, "video");
+ videodev.ext = DEV_EXT_VIDEO; /* Video extensions */
+ videodev.flags = DEV_FLAGS_SYSTEM; /* No Output */
+ videodev.putc = video_putc; /* 'putc' function */
+ videodev.puts = video_puts; /* 'puts' function */
+
+ error = device_register(&videodev);
+
+ return (error == 0) ? devices : error;
+}
+
+#endif
diff --git a/board/bf533-stamp/video.h b/board/bf533-stamp/video.h
new file mode 100644
index 0000000..d5a8bc8
--- /dev/null
+++ b/board/bf533-stamp/video.h
@@ -0,0 +1,25 @@
+#include <video_logo.h>
+#define write_dest_byte(val) {*dest++=val;}
+#define BLACK (0x01800180) /* black pixel pattern */
+#define BLUE (0x296E29F0) /* blue pixel pattern */
+#define RED (0x51F0515A) /* red pixel pattern */
+#define MAGENTA (0x6ADE6ACA) /* magenta pixel pattern */
+#define GREEN (0x91229136) /* green pixel pattern */
+#define CYAN (0xAA10AAA6) /* cyan pixel pattern */
+#define YELLOW (0xD292D210) /* yellow pixel pattern */
+#define WHITE (0xFE80FE80) /* white pixel pattern */
+
+#define true 1
+#define false 0
+
+typedef struct {
+ unsigned int SAV;
+ unsigned int EAV;
+} SystemCodeType;
+
+const SystemCodeType SystemCodeMap[4] = {
+ {0xFF000080, 0xFF00009D},
+ {0xFF0000AB, 0xFF0000B6},
+ {0xFF0000C7, 0xFF0000DA},
+ {0xFF0000EC, 0xFF0000F1}
+};
--
1.5.4.4
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