summaryrefslogtreecommitdiff
path: root/firmware/drivers
diff options
context:
space:
mode:
authorJens Arnold <amiconn@rockbox.org>2007-02-25 13:11:02 +0000
committerJens Arnold <amiconn@rockbox.org>2007-02-25 13:11:02 +0000
commit2906c36df3403b8c8146718beedfc480766a9d6c (patch)
tree9ded4dc9a8bbf6760337cabdc0c87465108b4037 /firmware/drivers
parentb7486fb4a99304b3fc41882cecdff33562c3bfc0 (diff)
Moved ipod LCD code to target tree.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12479 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/drivers')
-rw-r--r--firmware/drivers/lcd-ipod.c749
-rw-r--r--firmware/drivers/lcd-ipodvideo.c389
2 files changed, 0 insertions, 1138 deletions
diff --git a/firmware/drivers/lcd-ipod.c b/firmware/drivers/lcd-ipod.c
deleted file mode 100644
index e65d500654..0000000000
--- a/firmware/drivers/lcd-ipod.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/***************************************************************************
- * __________ __ ___.
- * Open \______ \ ____ ____ | | _\_ |__ _______ ___
- * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
- * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
- * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
- * \/ \/ \/ \/ \/
- * $Id$
- *
- * Rockbox driver for iPod LCDs
- *
- * Based on code from the ipodlinux project - http://ipodlinux.org/
- * Adapted for Rockbox in November 2005
- *
- * Original file: linux/arch/armnommu/mach-ipod/fb.c
- *
- * Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-#include "config.h"
-#include "cpu.h"
-#include "lcd.h"
-#include "kernel.h"
-#include "system.h"
-
-
-/* check if number of useconds has past */
-static inline bool timer_check(int clock_start, int usecs)
-{
- return ((int)(USEC_TIMER - clock_start)) >= usecs;
-}
-
-#if (CONFIG_LCD == LCD_IPOD2BPP) || (CONFIG_LCD == LCD_IPODMINI)
-
-/*** hardware configuration ***/
-
-#if CONFIG_CPU == PP5002
-#define IPOD_LCD_BASE 0xc0001000
-#define IPOD_LCD_BUSY_MASK 0x80000000
-#else /* PP5020 */
-#define IPOD_LCD_BASE 0x70003000
-#define IPOD_LCD_BUSY_MASK 0x00008000
-#endif
-
-/* LCD command codes for HD66753 */
-
-#define LCD_CMD 0x08
-#define LCD_DATA 0x10
-
-#define R_START_OSC 0x00
-#define R_DRV_OUTPUT_CONTROL 0x01
-#define R_DRV_WAVEFORM_CONTROL 0x02
-#define R_POWER_CONTROL 0x03
-#define R_CONTRAST_CONTROL 0x04
-#define R_ENTRY_MODE 0x05
-#define R_ROTATION 0x06
-#define R_DISPLAY_CONTROL 0x07
-#define R_CURSOR_CONTROL 0x08
-#define R_HORIZONTAL_CURSOR_POS 0x0b
-#define R_VERTICAL_CURSOR_POS 0x0c
-#define R_1ST_SCR_DRV_POS 0x0d
-#define R_2ND_SCR_DRV_POS 0x0e
-#define R_RAM_WRITE_MASK 0x10
-#define R_RAM_ADDR_SET 0x11
-#define R_RAM_DATA 0x12
-
-/* needed for flip */
-static int addr_offset;
-#if defined(IPOD_MINI) || defined(IPOD_MINI2G)
-static int pix_offset;
-#endif
-
-static const unsigned char dibits[16] ICONST_ATTR = {
- 0x00, 0x03, 0x0C, 0x0F, 0x30, 0x33, 0x3C, 0x3F,
- 0xC0, 0xC3, 0xCC, 0xCF, 0xF0, 0xF3, 0xFC, 0xFF
-};
-
-/* wait for LCD with timeout */
-static inline void lcd_wait_write(void)
-{
- int start = USEC_TIMER;
-
- do {
- if ((inl(IPOD_LCD_BASE) & 0x8000) == 0) break;
- } while (timer_check(start, 1000) == 0);
-}
-
-
-/* send LCD data */
-static void lcd_send_data(unsigned data)
-{
- lcd_wait_write();
-#ifdef IPOD_MINI2G
- outl((inl(IPOD_LCD_BASE) & ~0x1f00000) | 0x1700000, IPOD_LCD_BASE);
- outl(data | 0x760000, IPOD_LCD_BASE+8);
-#else
- outl(data >> 8, IPOD_LCD_BASE + LCD_DATA);
- lcd_wait_write();
- outl(data & 0xff, IPOD_LCD_BASE + LCD_DATA);
-#endif
-}
-
-/* send LCD command */
-static void lcd_prepare_cmd(unsigned cmd)
-{
- lcd_wait_write();
-#ifdef IPOD_MINI2G
- outl((inl(IPOD_LCD_BASE) & ~0x1f00000) | 0x1700000, IPOD_LCD_BASE);
- outl(cmd | 0x740000, IPOD_LCD_BASE+8);
-#else
- outl(0x0, IPOD_LCD_BASE + LCD_CMD);
- lcd_wait_write();
- outl(cmd, IPOD_LCD_BASE + LCD_CMD);
-#endif
-}
-
-/* send LCD command and data */
-static void lcd_cmd_and_data(unsigned cmd, unsigned data)
-{
- lcd_prepare_cmd(cmd);
- lcd_send_data(data);
-}
-
-/* LCD init */
-void lcd_init_device(void)
-{
- lcd_cmd_and_data(R_DISPLAY_CONTROL, 0x0009);
- lcd_set_flip(false);
- lcd_cmd_and_data(R_ENTRY_MODE, 0x0000);
-
-#ifdef IPOD_4G
- outl(inl(0x6000d004) | 0x4, 0x6000d004); /* B02 enable */
- outl(inl(0x6000d004) | 0x8, 0x6000d004); /* B03 enable */
- outl(inl(0x70000084) | 0x2000000, 0x70000084); /* D01 enable */
- outl(inl(0x70000080) | 0x2000000, 0x70000080); /* D01 =1 */
-
- outl(inl(0x6000600c) | 0x20000, 0x6000600c); /* PWM enable */
-#endif
-}
-
-/*** hardware configuration ***/
-
-int lcd_default_contrast(void)
-{
-#if defined(IPOD_MINI) || defined(IPOD_MINI2G) || defined(IPOD_3G)
- return 42;
-#else
- return 35;
-#endif
-}
-
-/* Rockbox stores the contrast as 0..63 - we add 64 to it */
-void lcd_set_contrast(int val)
-{
- if (val < 0) val = 0;
- else if (val > 63) val = 63;
-
- lcd_cmd_and_data(R_CONTRAST_CONTROL, 0x400 | (val + 64));
-}
-
-void lcd_set_invert_display(bool yesno)
-{
- if (yesno)
- lcd_cmd_and_data(R_DISPLAY_CONTROL, 0x0023);
- else
- lcd_cmd_and_data(R_DISPLAY_CONTROL, 0x0009);
-}
-
-/* turn the display upside down (call lcd_update() afterwards) */
-void lcd_set_flip(bool yesno)
-{
-#if defined(IPOD_MINI) || defined(IPOD_MINI2G)
- if (yesno) {
- /* 168x112, inverse COM order */
- lcd_cmd_and_data(R_DRV_OUTPUT_CONTROL, 0x020d);
- lcd_cmd_and_data(R_1ST_SCR_DRV_POS, 0x8316); /* 22..131 */
- addr_offset = (22 << 5) | (20 - 4);
- pix_offset = -2;
- } else {
- /* 168x112, inverse SEG order */
- lcd_cmd_and_data(R_DRV_OUTPUT_CONTROL, 0x010d);
- lcd_cmd_and_data(R_1ST_SCR_DRV_POS, 0x6d00); /* 0..109 */
- addr_offset = 20;
- pix_offset = 0;
- }
-#else
- if (yesno) {
- /* 168x128, inverse SEG & COM order */
- lcd_cmd_and_data(R_DRV_OUTPUT_CONTROL, 0x030f);
- lcd_cmd_and_data(R_1ST_SCR_DRV_POS, 0x8304); /* 4..131 */
- addr_offset = (4 << 5) | (20 - 1);
- } else {
- /* 168x128 */
- lcd_cmd_and_data(R_DRV_OUTPUT_CONTROL, 0x000f);
- lcd_cmd_and_data(R_1ST_SCR_DRV_POS, 0x7f00); /* 0..127 */
- addr_offset = 20;
- }
-#endif
-}
-
-/*** update functions ***/
-
-/* Performance function that works with an external buffer
- note that x, bwidtht and stride are in 8-pixel units! */
-void lcd_blit(const unsigned char* data, int bx, int y, int bwidth,
- int height, int stride)
-{
- const unsigned char *src, *src_end;
-
- while (height--) {
- src = data;
- src_end = data + bwidth;
- lcd_cmd_and_data(R_RAM_ADDR_SET, (y++ << 5) + addr_offset - bx);
- lcd_prepare_cmd(R_RAM_DATA);
- do {
- unsigned byte = *src++;
- lcd_send_data((dibits[byte>>4] << 8) | dibits[byte&0x0f]);
- } while (src < src_end);
- data += stride;
- }
-}
-
-void lcd_update_rect(int x, int y, int width, int height)
-{
- int xmax, ymax;
-
- if (x + width > LCD_WIDTH)
- width = LCD_WIDTH - x;
- if (width <= 0)
- return;
-
- ymax = y + height - 1;
- if (ymax >= LCD_HEIGHT)
- ymax = LCD_HEIGHT - 1;
-
-#if defined(IPOD_MINI) || defined(IPOD_MINI2G)
- x += pix_offset;
-#endif
- /* writing is done in 16-bit units (8 pixels) */
- xmax = (x + width - 1) >> 3;
- x >>= 3;
- width = xmax - x + 1;
-
- for (; y <= ymax; y++) {
- unsigned char *data, *data_end;
-
- lcd_cmd_and_data(R_RAM_ADDR_SET, (y << 5) + addr_offset - x);
- lcd_prepare_cmd(R_RAM_DATA);
-
- data = &lcd_framebuffer[y][2*x];
- data_end = data + 2 * width;
-#if defined(IPOD_MINI) || defined(IPOD_MINI2G)
- if (pix_offset == -2) {
- unsigned cur_word = *data++;
- do {
- cur_word = (cur_word << 8) | *data++;
- cur_word = (cur_word << 8) | *data++;
- lcd_send_data((cur_word >> 4) & 0xffff);
- } while (data <= data_end);
- } else
-#endif
- {
- do {
- unsigned highbyte = *data++;
- lcd_send_data((highbyte << 8) | *data++);
- } while (data < data_end);
- }
- }
-}
-
-/* Update the display. */
-void lcd_update(void)
-{
- lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
-}
-
-#else
-
-#define IPOD_LCD_BASE 0x70008a0c
-#define IPOD_LCD_BUSY_MASK 0x80000000
-
-/* LCD command codes for HD66789R */
-#define LCD_CNTL_RAM_ADDR_SET 0x21
-#define LCD_CNTL_WRITE_TO_GRAM 0x22
-#define LCD_CNTL_HORIZ_RAM_ADDR_POS 0x44
-#define LCD_CNTL_VERT_RAM_ADDR_POS 0x45
-
-/*** globals ***/
-static int lcd_type = 1; /* 0 = "old" Color/Photo, 1 = "new" Color & Nano */
-
-static void lcd_wait_write(void)
-{
- if ((inl(IPOD_LCD_BASE) & IPOD_LCD_BUSY_MASK) != 0) {
- int start = USEC_TIMER;
-
- do {
- if ((inl(IPOD_LCD_BASE) & IPOD_LCD_BUSY_MASK) == 0) break;
- } while (timer_check(start, 1000) == 0);
- }
-}
-
-static void lcd_send_lo(int v)
-{
- lcd_wait_write();
- outl(v | 0x80000000, IPOD_LCD_BASE);
-}
-
-static void lcd_send_hi(int v)
-{
- lcd_wait_write();
- outl(v | 0x81000000, IPOD_LCD_BASE);
-}
-
-static void lcd_cmd_data(int cmd, int data)
-{
- if (lcd_type == 0) {
- lcd_send_lo(cmd);
- lcd_send_lo(data);
- } else {
- lcd_send_lo(0x0);
- lcd_send_lo(cmd);
- lcd_send_hi((data >> 8) & 0xff);
- lcd_send_hi(data & 0xff);
- }
-}
-
-/*** hardware configuration ***/
-
-void lcd_set_contrast(int val)
-{
- /* TODO: Implement lcd_set_contrast() */
- (void)val;
-}
-
-void lcd_set_invert_display(bool yesno)
-{
- /* TODO: Implement lcd_set_invert_display() */
- (void)yesno;
-}
-
-/* turn the display upside down (call lcd_update() afterwards) */
-void lcd_set_flip(bool yesno)
-{
- /* TODO: Implement lcd_set_flip() */
- (void)yesno;
-}
-
-/* LCD init */
-void lcd_init_device(void)
-{
-#if CONFIG_LCD == LCD_IPODCOLOR
- if (ipod_hw_rev == 0x60000) {
- lcd_type = 0;
- } else {
- int gpio_a01, gpio_a04;
-
- /* A01 */
- gpio_a01 = (inl(0x6000D030) & 0x2) >> 1;
- /* A04 */
- gpio_a04 = (inl(0x6000D030) & 0x10) >> 4;
-
- if (((gpio_a01 << 1) | gpio_a04) == 0 || ((gpio_a01 << 1) | gpio_a04) == 2) {
- lcd_type = 0;
- } else {
- lcd_type = 1;
- }
- }
-
- outl(inl(0x6000d004) | 0x4, 0x6000d004); /* B02 enable */
- outl(inl(0x6000d004) | 0x8, 0x6000d004); /* B03 enable */
- outl(inl(0x70000084) | 0x2000000, 0x70000084); /* D01 enable */
- outl(inl(0x70000080) | 0x2000000, 0x70000080); /* D01 =1 */
-
- outl(inl(0x6000600c) | 0x20000, 0x6000600c); /* PWM enable */
-
-#elif CONFIG_LCD == LCD_IPODNANO
- /* iPodLinux doesn't appear have any LCD init code for the Nano */
-#endif
-}
-
-/*** update functions ***/
-
-/* Performance function that works with an external buffer
- note that by and bheight are in 4-pixel units! */
-void lcd_blit(const fb_data* data, int x, int by, int width,
- int bheight, int stride)
-{
- /* TODO: Implement lcd_blit() */
- (void)data;
- (void)x;
- (void)by;
- (void)width;
- (void)bheight;
- (void)stride;
-}
-
-#define CSUB_X 2
-#define CSUB_Y 2
-
-#define RYFAC (31*257)
-#define GYFAC (31*257)
-#define BYFAC (31*257)
-#define RVFAC 11170 /* 31 * 257 * 1.402 */
-#define GVFAC (-5690) /* 31 * 257 * -0.714136 */
-#define GUFAC (-2742) /* 31 * 257 * -0.344136 */
-#define BUFAC 14118 /* 31 * 257 * 1.772 */
-
-#define ROUNDOFFS (127*257)
-#define ROUNDOFFSG (63*257)
-
-/* Performance function to blit a YUV bitmap directly to the LCD */
-void lcd_yuv_blit(unsigned char * const src[3],
- int src_x, int src_y, int stride,
- int x, int y, int width, int height)
-{
- int h;
- int y0, x0, y1, x1;
-
- width = (width + 1) & ~1;
-
- /* calculate the drawing region */
-#if CONFIG_LCD == LCD_IPODNANO
- y0 = x; /* start horiz */
- x0 = y; /* start vert */
- y1 = (x + width) - 1; /* max horiz */
- x1 = (y + height) - 1; /* max vert */
-#elif CONFIG_LCD == LCD_IPODCOLOR
- y0 = y; /* start vert */
- x0 = (LCD_WIDTH - 1) - x; /* start horiz */
- y1 = (y + height) - 1; /* end vert */
- x1 = (x0 - width) + 1; /* end horiz */
-#endif
-
- /* setup the drawing region */
- if (lcd_type == 0) {
- lcd_cmd_data(0x12, y0); /* start vert */
- lcd_cmd_data(0x13, x0); /* start horiz */
- lcd_cmd_data(0x15, y1); /* end vert */
- lcd_cmd_data(0x16, x1); /* end horiz */
- } else {
- /* swap max horiz < start horiz */
- if (y1 < y0) {
- int t;
- t = y0;
- y0 = y1;
- y1 = t;
- }
-
- /* swap max vert < start vert */
- if (x1 < x0) {
- int t;
- t = x0;
- x0 = x1;
- x1 = t;
- }
-
- /* max horiz << 8 | start horiz */
- lcd_cmd_data(LCD_CNTL_HORIZ_RAM_ADDR_POS, (y1 << 8) | y0);
- /* max vert << 8 | start vert */
- lcd_cmd_data(LCD_CNTL_VERT_RAM_ADDR_POS, (x1 << 8) | x0);
-
- /* start vert = max vert */
-#if CONFIG_LCD == LCD_IPODCOLOR
- x0 = x1;
-#endif
-
- /* position cursor (set AD0-AD15) */
- /* start vert << 8 | start horiz */
- lcd_cmd_data(LCD_CNTL_RAM_ADDR_SET, ((x0 << 8) | y0));
-
- /* start drawing */
- lcd_send_lo(0x0);
- lcd_send_lo(LCD_CNTL_WRITE_TO_GRAM);
- }
-
- const int stride_div_csub_x = stride/CSUB_X;
-
- h=0;
- while (1) {
- /* upsampling, YUV->RGB conversion and reduction to RGB565 in one go */
- const unsigned char *ysrc = src[0] + stride * src_y + src_x;
-
- const int uvoffset = stride_div_csub_x * (src_y/CSUB_Y) +
- (src_x/CSUB_X);
-
- const unsigned char *usrc = src[1] + uvoffset;
- const unsigned char *vsrc = src[2] + uvoffset;
- const unsigned char *row_end = ysrc + width;
-
- int y, u, v;
- int red1, green1, blue1;
- int red2, green2, blue2;
- unsigned rbits, gbits, bbits;
-
- int rc, gc, bc;
- int pixels_to_write;
- fb_data pixel1,pixel2;
-
- if (h==0) {
- while ((inl(0x70008a20) & 0x4000000) == 0);
- outl(0x0, 0x70008a24);
-
- if (height == 0) break;
-
- pixels_to_write = (width * height) * 2;
- h = height;
-
- /* calculate how much we can do in one go */
- if (pixels_to_write > 0x10000) {
- h = (0x10000/2) / width;
- pixels_to_write = (width * h) * 2;
- }
-
- height -= h;
- outl(0x10000080, 0x70008a20);
- outl((pixels_to_write - 1) | 0xc0010000, 0x70008a24);
- outl(0x34000000, 0x70008a20);
- }
-
- do
- {
- u = *usrc++ - 128;
- v = *vsrc++ - 128;
- rc = RVFAC * v + ROUNDOFFS;
- gc = GVFAC * v + GUFAC * u + ROUNDOFFSG;
- bc = BUFAC * u + ROUNDOFFS;
-
- /* Pixel 1 */
- y = *ysrc++;
-
- red1 = RYFAC * y + rc;
- green1 = GYFAC * y + gc;
- blue1 = BYFAC * y + bc;
-
- /* Pixel 2 */
- y = *ysrc++;
- red2 = RYFAC * y + rc;
- green2 = GYFAC * y + gc;
- blue2 = BYFAC * y + bc;
-
- /* Since out of bounds errors are relatively rare, we check two
- pixels at once to see if any components are out of bounds, and
- then fix whichever is broken. This works due to high values and
- negative values both becoming larger than the cutoff when
- casted to unsigned. And ORing them together checks all of them
- simultaneously. */
- if (((unsigned)(red1 | green1 | blue1 |
- red2 | green2 | blue2)) > (RYFAC*255+ROUNDOFFS)) {
- if (((unsigned)(red1 | green1 | blue1)) >
- (RYFAC*255+ROUNDOFFS)) {
- if ((unsigned)red1 > (RYFAC*255+ROUNDOFFS))
- {
- if (red1 < 0)
- red1 = 0;
- else
- red1 = (RYFAC*255+ROUNDOFFS);
- }
- if ((unsigned)green1 > (GYFAC*255+ROUNDOFFSG))
- {
- if (green1 < 0)
- green1 = 0;
- else
- green1 = (GYFAC*255+ROUNDOFFSG);
- }
- if ((unsigned)blue1 > (BYFAC*255+ROUNDOFFS))
- {
- if (blue1 < 0)
- blue1 = 0;
- else
- blue1 = (BYFAC*255+ROUNDOFFS);
- }
- }
-
- if (((unsigned)(red2 | green2 | blue2)) >
- (RYFAC*255+ROUNDOFFS)) {
- if ((unsigned)red2 > (RYFAC*255+ROUNDOFFS))
- {
- if (red2 < 0)
- red2 = 0;
- else
- red2 = (RYFAC*255+ROUNDOFFS);
- }
- if ((unsigned)green2 > (GYFAC*255+ROUNDOFFSG))
- {
- if (green2 < 0)
- green2 = 0;
- else
- green2 = (GYFAC*255+ROUNDOFFSG);
- }
- if ((unsigned)blue2 > (BYFAC*255+ROUNDOFFS))
- {
- if (blue2 < 0)
- blue2 = 0;
- else
- blue2 = (BYFAC*255+ROUNDOFFS);
- }
- }
- }
-
- rbits = red1 >> 16 ;
- gbits = green1 >> 15 ;
- bbits = blue1 >> 16 ;
-
- pixel1 = swap16((rbits << 11) | (gbits << 5) | bbits);
-
- rbits = red2 >> 16 ;
- gbits = green2 >> 15 ;
- bbits = blue2 >> 16 ;
- pixel2 = swap16((rbits << 11) | (gbits << 5) | bbits);
-
- while ((inl(0x70008a20) & 0x1000000) == 0);
-
- /* output 2 pixels */
- outl((pixel2<<16)|pixel1, 0x70008b00);
- }
- while (ysrc < row_end);
-
- src_y++;
- h--;
- }
-
- while ((inl(0x70008a20) & 0x4000000) == 0);
- outl(0x0, 0x70008a24);
-}
-
-
-/* Update a fraction of the display. */
-void lcd_update_rect(int x, int y, int width, int height)
-{
- int y0, x0, y1, x1;
- int newx,newwidth;
-
- unsigned long *addr = (unsigned long *)lcd_framebuffer;
-
- /* Ensure x and width are both even - so we can read 32-bit aligned
- data from lcd_framebuffer */
- newx=x&~1;
- newwidth=width&~1;
- if (newx+newwidth < x+width) { newwidth+=2; }
- x=newx; width=newwidth;
-
- /* calculate the drawing region */
-#if CONFIG_LCD == LCD_IPODNANO
- y0 = x; /* start horiz */
- x0 = y; /* start vert */
- y1 = (x + width) - 1; /* max horiz */
- x1 = (y + height) - 1; /* max vert */
-#elif CONFIG_LCD == LCD_IPODCOLOR
- y0 = y; /* start vert */
- x0 = (LCD_WIDTH - 1) - x; /* start horiz */
- y1 = (y + height) - 1; /* end vert */
- x1 = (x0 - width) + 1; /* end horiz */
-#endif
- /* setup the drawing region */
- if (lcd_type == 0) {
- lcd_cmd_data(0x12, y0); /* start vert */
- lcd_cmd_data(0x13, x0); /* start horiz */
- lcd_cmd_data(0x15, y1); /* end vert */
- lcd_cmd_data(0x16, x1); /* end horiz */
- } else {
- /* swap max horiz < start horiz */
- if (y1 < y0) {
- int t;
- t = y0;
- y0 = y1;
- y1 = t;
- }
-
- /* swap max vert < start vert */
- if (x1 < x0) {
- int t;
- t = x0;
- x0 = x1;
- x1 = t;
- }
-
- /* max horiz << 8 | start horiz */
- lcd_cmd_data(LCD_CNTL_HORIZ_RAM_ADDR_POS, (y1 << 8) | y0);
- /* max vert << 8 | start vert */
- lcd_cmd_data(LCD_CNTL_VERT_RAM_ADDR_POS, (x1 << 8) | x0);
-
- /* start vert = max vert */
-#if CONFIG_LCD == LCD_IPODCOLOR
- x0 = x1;
-#endif
-
- /* position cursor (set AD0-AD15) */
- /* start vert << 8 | start horiz */
- lcd_cmd_data(LCD_CNTL_RAM_ADDR_SET, ((x0 << 8) | y0));
-
- /* start drawing */
- lcd_send_lo(0x0);
- lcd_send_lo(LCD_CNTL_WRITE_TO_GRAM);
- }
-
- addr = (unsigned long*)&lcd_framebuffer[y][x];
-
- while (height > 0) {
- int c, r;
- int h, pixels_to_write;
-
- pixels_to_write = (width * height) * 2;
- h = height;
-
- /* calculate how much we can do in one go */
- if (pixels_to_write > 0x10000) {
- h = (0x10000/2) / width;
- pixels_to_write = (width * h) * 2;
- }
-
- outl(0x10000080, 0x70008a20);
- outl((pixels_to_write - 1) | 0xc0010000, 0x70008a24);
- outl(0x34000000, 0x70008a20);
-
- /* for each row */
- for (r = 0; r < h; r++) {
- /* for each column */
- for (c = 0; c < width; c += 2) {
- while ((inl(0x70008a20) & 0x1000000) == 0);
-
- /* output 2 pixels */
- outl(*(addr++), 0x70008b00);
- }
-
- addr += (LCD_WIDTH - width)/2;
- }
-
- while ((inl(0x70008a20) & 0x4000000) == 0);
-
- outl(0x0, 0x70008a24);
-
- height = height - h;
- }
-}
-
-/* Update the display.
- This must be called after all other LCD functions that change the display. */
-void lcd_update(void)
-{
- lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
-}
-
-#endif
diff --git a/firmware/drivers/lcd-ipodvideo.c b/firmware/drivers/lcd-ipodvideo.c
deleted file mode 100644
index 237162b664..0000000000
--- a/firmware/drivers/lcd-ipodvideo.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/***************************************************************************
- * __________ __ ___.
- * Open \______ \ ____ ____ | | _\_ |__ _______ ___
- * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
- * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
- * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
- * \/ \/ \/ \/ \/
- * $Id$
- *
- * LCD driver for iPod Video
- *
- * Based on code from the ipodlinux project - http://ipodlinux.org/
- * Adapted for Rockbox in December 2005
- *
- * Original file: linux/arch/armnommu/mach-ipod/fb.c
- *
- * Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-#include "config.h"
-#include "cpu.h"
-#include "lcd.h"
-#include "kernel.h"
-#include "system.h"
-
-/*** hardware configuration ***/
-
-void lcd_set_contrast(int val)
-{
- /* TODO: Implement lcd_set_contrast() */
- (void)val;
-}
-
-void lcd_set_invert_display(bool yesno)
-{
- /* TODO: Implement lcd_set_invert_display() */
- (void)yesno;
-}
-
-/* turn the display upside down (call lcd_update() afterwards) */
-void lcd_set_flip(bool yesno)
-{
- /* TODO: Implement lcd_set_flip() */
- (void)yesno;
-}
-
-/* LCD init */
-void lcd_init_device(void)
-{
- /* iPodLinux doesn't appear have any LCD init code for the Video */
-}
-
-/*** update functions ***/
-
-/* Performance function that works with an external buffer
- note that by and bheight are in 4-pixel units! */
-void lcd_blit(const fb_data* data, int x, int by, int width,
- int bheight, int stride)
-{
- /* TODO: Implement lcd_blit() */
- (void)data;
- (void)x;
- (void)by;
- (void)width;
- (void)bheight;
- (void)stride;
-}
-
-static inline void lcd_bcm_write32(unsigned address, unsigned value)
-{
- /* write out destination address as two 16bit values */
- outw(address, 0x30010000);
- outw((address >> 16), 0x30010000);
-
- /* wait for it to be write ready */
- while ((inw(0x30030000) & 0x2) == 0);
-
- /* write out the value low 16, high 16 */
- outw(value, 0x30000000);
- outw((value >> 16), 0x30000000);
-}
-
-static void lcd_bcm_setup_rect(unsigned cmd,
- unsigned start_horiz,
- unsigned start_vert,
- unsigned max_horiz,
- unsigned max_vert,
- unsigned count)
-{
- lcd_bcm_write32(0x1F8, 0xFFFA0005);
- lcd_bcm_write32(0xE0000, cmd);
- lcd_bcm_write32(0xE0004, start_horiz);
- lcd_bcm_write32(0xE0008, start_vert);
- lcd_bcm_write32(0xE000C, max_horiz);
- lcd_bcm_write32(0xE0010, max_vert);
- lcd_bcm_write32(0xE0014, count);
- lcd_bcm_write32(0xE0018, count);
- lcd_bcm_write32(0xE001C, 0);
-}
-
-static unsigned lcd_bcm_read32(unsigned address) {
- while ((inw(0x30020000) & 1) == 0);
-
- /* write out destination address as two 16bit values */
- outw(address, 0x30020000);
- outw((address >> 16), 0x30020000);
-
- /* wait for it to be read ready */
- while ((inw(0x30030000) & 0x10) == 0);
-
- /* read the value */
- return inw(0x30000000) | inw(0x30000000) << 16;
-}
-
-static int finishup_needed = 0;
-
-/* Update a fraction of the display. */
-void lcd_update_rect(int x, int y, int width, int height) ICODE_ATTR;
-void lcd_update_rect(int x, int y, int width, int height)
-{
- {
- int endy = x + width;
- /* Ensure x and width are both even - so we can read 32-bit aligned
- data from lcd_framebuffer */
- x &= ~1;
- width &= ~1;
- if (x + width < endy) {
- width += 2;
- }
- }
-
- if (finishup_needed) {
- unsigned int data;
- /* Bottom-half of original lcd_bcm_finishup() function */
- do {
- /* This function takes about 14ms to execute - so we yield() */
- yield();
- data = lcd_bcm_read32(0x1F8);
- } while (data == 0xFFFA0005 || data == 0xFFFF);
- }
-
- lcd_bcm_read32(0x1FC);
-
- {
- int rect1, rect2, rect3, rect4;
- int count = (width * height) << 1;
- /* calculate the drawing region */
- rect1 = x; /* start horiz */
- rect2 = y; /* start vert */
- rect3 = (x + width) - 1; /* max horiz */
- rect4 = (y + height) - 1; /* max vert */
-
- /* setup the drawing region */
- lcd_bcm_setup_rect(0x34, rect1, rect2, rect3, rect4, count);
- }
-
- /* write out destination address as two 16bit values */
- outw((0xE0020 & 0xffff), 0x30010000);
- outw((0xE0020 >> 16), 0x30010000);
-
- /* wait for it to be write ready */
- while ((inw(0x30030000) & 0x2) == 0);
-
- {
- unsigned short *src = (unsigned short*)&lcd_framebuffer[y][x];
- unsigned short *end = &src[LCD_WIDTH * height];
- int line_rem = (LCD_WIDTH - width);
- while (src < end) {
- /* Duff's Device to unroll loop */
- register int count = width ;
- register int n=( count + 7 ) / 8;
- switch( count % 8 ) {
- case 0: do{ outw(*(src++), 0x30000000);
- case 7: outw(*(src++), 0x30000000);
- case 6: outw(*(src++), 0x30000000);
- case 5: outw(*(src++), 0x30000000);
- case 4: outw(*(src++), 0x30000000);
- case 3: outw(*(src++), 0x30000000);
- case 2: outw(*(src++), 0x30000000);
- case 1: outw(*(src++), 0x30000000);
- } while(--n>0);
- }
- src += line_rem;
- }
- }
-
- /* Top-half of original lcd_bcm_finishup() function */
- outw(0x31, 0x30030000);
-
- lcd_bcm_read32(0x1FC);
-
- finishup_needed = 1;
-}
-
-/* Update the display.
- This must be called after all other LCD functions that change the display. */
-void lcd_update(void)
-{
- lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
-}
-
-#define CSUB_X 2
-#define CSUB_Y 2
-
-#define RYFAC (31*257)
-#define GYFAC (31*257)
-#define BYFAC (31*257)
-#define RVFAC 11170 /* 31 * 257 * 1.402 */
-#define GVFAC (-5690) /* 31 * 257 * -0.714136 */
-#define GUFAC (-2742) /* 31 * 257 * -0.344136 */
-#define BUFAC 14118 /* 31 * 257 * 1.772 */
-
-#define ROUNDOFFS (127*257)
-#define ROUNDOFFSG (63*257)
-
-/* Performance function to blit a YUV bitmap directly to the LCD */
-void lcd_yuv_blit(unsigned char * const src[3],
- int src_x, int src_y, int stride,
- int x, int y, int width, int height)
-{
- int ymax;
-
- width = (width + 1) & ~1;
-
- if (finishup_needed) {
- unsigned int data;
- /* Bottom-half of original lcd_bcm_finishup() function */
- data = lcd_bcm_read32(0x1F8);
- while (data == 0xFFFA0005 || data == 0xFFFF) {
- /* This loop can wait for up to 14ms - so we yield() */
- yield();
- data = lcd_bcm_read32(0x1F8);
- }
- }
-
- lcd_bcm_read32(0x1FC);
-
- {
- int rect1, rect2, rect3, rect4;
- int count = (width * height) << 1;
- /* calculate the drawing region */
- rect1 = x; /* start horiz */
- rect2 = y; /* start vert */
- rect3 = (x + width) - 1; /* max horiz */
- rect4 = (y + height) - 1; /* max vert */
-
- /* setup the drawing region */
- lcd_bcm_setup_rect(0x34, rect1, rect2, rect3, rect4, count);
- }
-
- /* write out destination address as two 16bit values */
- outw((0xE0020 & 0xffff), 0x30010000);
- outw((0xE0020 >> 16), 0x30010000);
-
- /* wait for it to be write ready */
- while ((inw(0x30030000) & 0x2) == 0);
-
- ymax = y + height - 1 ;
-
- const int stride_div_csub_x = stride/CSUB_X;
-
- for (; y <= ymax ; y++)
- {
- /* upsampling, YUV->RGB conversion and reduction to RGB565 in one go */
- const unsigned char *ysrc = src[0] + stride * src_y + src_x;
-
- const int uvoffset = stride_div_csub_x * (src_y/CSUB_Y) +
- (src_x/CSUB_X);
-
- const unsigned char *usrc = src[1] + uvoffset;
- const unsigned char *vsrc = src[2] + uvoffset;
- const unsigned char *row_end = ysrc + width;
-
- int y, u, v;
- int red1, green1, blue1;
- int red2, green2, blue2;
- unsigned rbits, gbits, bbits;
-
- int rc, gc, bc;
-
- do
- {
- u = *usrc++ - 128;
- v = *vsrc++ - 128;
- rc = RVFAC * v + ROUNDOFFS;
- gc = GVFAC * v + GUFAC * u + ROUNDOFFSG;
- bc = BUFAC * u + ROUNDOFFS;
-
- /* Pixel 1 */
- y = *ysrc++;
-
- red1 = RYFAC * y + rc;
- green1 = GYFAC * y + gc;
- blue1 = BYFAC * y + bc;
-
- /* Pixel 2 */
- y = *ysrc++;
- red2 = RYFAC * y + rc;
- green2 = GYFAC * y + gc;
- blue2 = BYFAC * y + bc;
-
- /* Since out of bounds errors are relatively rare, we check two
- pixels at once to see if any components are out of bounds, and
- then fix whichever is broken. This works due to high values and
- negative values both becoming larger than the cutoff when
- casted to unsigned. And ORing them together checks all of them
- simultaneously. */
- if (((unsigned)(red1 | green1 | blue1 |
- red2 | green2 | blue2)) > (RYFAC*255+ROUNDOFFS)) {
- if (((unsigned)(red1 | green1 | blue1)) >
- (RYFAC*255+ROUNDOFFS)) {
- if ((unsigned)red1 > (RYFAC*255+ROUNDOFFS))
- {
- if (red1 < 0)
- red1 = 0;
- else
- red1 = (RYFAC*255+ROUNDOFFS);
- }
- if ((unsigned)green1 > (GYFAC*255+ROUNDOFFSG))
- {
- if (green1 < 0)
- green1 = 0;
- else
- green1 = (GYFAC*255+ROUNDOFFSG);
- }
- if ((unsigned)blue1 > (BYFAC*255+ROUNDOFFS))
- {
- if (blue1 < 0)
- blue1 = 0;
- else
- blue1 = (BYFAC*255+ROUNDOFFS);
- }
- }
-
- if (((unsigned)(red2 | green2 | blue2)) >
- (RYFAC*255+ROUNDOFFS)) {
- if ((unsigned)red2 > (RYFAC*255+ROUNDOFFS))
- {
- if (red2 < 0)
- red2 = 0;
- else
- red2 = (RYFAC*255+ROUNDOFFS);
- }
- if ((unsigned)green2 > (GYFAC*255+ROUNDOFFSG))
- {
- if (green2 < 0)
- green2 = 0;
- else
- green2 = (GYFAC*255+ROUNDOFFSG);
- }
- if ((unsigned)blue2 > (BYFAC*255+ROUNDOFFS))
- {
- if (blue2 < 0)
- blue2 = 0;
- else
- blue2 = (BYFAC*255+ROUNDOFFS);
- }
- }
- }
-
- rbits = red1 >> 16 ;
- gbits = green1 >> 15 ;
- bbits = blue1 >> 16 ;
-
- outw((rbits << 11) | (gbits << 5) | bbits, 0x30000000);
-
- rbits = red2 >> 16 ;
- gbits = green2 >> 15 ;
- bbits = blue2 >> 16 ;
- outw((rbits << 11) | (gbits << 5) | bbits, 0x30000000);
- }
- while (ysrc < row_end);
-
- src_y++;
- }
-
- /* Top-half of original lcd_bcm_finishup() function */
- outw(0x31, 0x30030000);
-
- lcd_bcm_read32(0x1FC);
-
- finishup_needed = 1;
-}