1 files changed, 405 insertions, 0 deletions

diff --git a/firmware/target/arm/tms320dm320/creative-zvm/lcd-creativezvm.c b/firmware/target/arm/tms320dm320/creative-zvm/lcd-creativezvm.c
new file mode 100644
index 0000000000..dec20ad72f
--- /dev/null
+++ b/firmware/target/arm/tms320dm320/creative-zvm/lcd-creativezvm.c
@@ -0,0 +1,405 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Copyright (C) 2008 by Maurus Cuelenaere
+*
+* 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 "hwcompat.h"
+#include "kernel.h"
+#include "lcd.h"
+#include "system.h"
+#include "memory.h"
+#include "cpu.h"
+#include "spi.h"
+#include "spi-target.h"
+#include "lcd-target.h"
+
+/* Power and display status */
+static bool display_on  = true; /* Is the display turned on? */
+static bool direct_fb_access = false; /* Does the DM320 has direct access to the FB? */
+
+int lcd_default_contrast(void)
+{
+    return 0x1f;
+}
+
+void lcd_set_contrast(int val)
+{
+    /* iirc there is an ltv250qv command to do this */
+    #warning function not implemented
+    (void)val;
+}
+
+void lcd_set_invert_display(bool yesno) {
+  (void) yesno;
+  // TODO:
+}
+
+void lcd_set_flip(bool yesno) {
+  (void) yesno;
+  // TODO:
+}
+
+
+/* LTV250QV panel functions */
+
+static void lcd_write_reg(unsigned char reg, unsigned short val)
+{
+    unsigned char block[3];
+    block[0] = 0x74;
+    block[1] = 0;
+    block[2] = reg | 0xFF;
+    spi_block_transfer(SPI_target_LTV250QV, block, sizeof(block), NULL, 0);
+    block[0] = 0x76;
+    block[1] = (val >> 8) & 0xFF;
+    block[2] = val & 0xFF;
+    spi_block_transfer(SPI_target_LTV250QV, block, sizeof(block), NULL, 0);
+}
+
+static void sleep_ms(unsigned int ms)
+{
+    sleep(ms*HZ/1000);
+}
+
+static void lcd_display_on(void)
+{
+    /* Enable main power */
+    IO_GIO_BITSET2 |= (1 << 3);
+    
+    /* power on sequence as per the ZVM firmware */
+    sleep_ms(250);
+    IO_GIO_BITSET1 = (1 << 13);
+    sleep_ms(5);
+    IO_GIO_BITSET2 = (1 << 5);
+    IO_GIO_BITSET2 = (1 << 8);
+    sleep_ms(1);
+    
+    //Init SPI here...
+    sleep_ms(32);
+    
+    IO_GIO_BITSET2 = (1 << 0);
+    sleep_ms(5);
+    IO_GIO_BITSET2 = (1 << 7);
+    sleep_ms(5);
+    IO_GIO_BITSET2 = (1 << 4);
+    sleep_ms(5);
+    IO_GIO_BITCLR2 = (1 << 8);
+    //TODO: figure out what OF does after this...
+    IO_GIO_BITSET2 = (1 << 8);
+    sleep_ms(1);
+    
+    lcd_write_reg(1,  0x1D);
+    lcd_write_reg(2,  0x0);
+    lcd_write_reg(3,  0x0);
+    lcd_write_reg(4,  0x0);
+    lcd_write_reg(5,  0x40A3);
+    lcd_write_reg(6,  0x0);
+    lcd_write_reg(7,  0x0);
+    lcd_write_reg(8,  0x0);
+    lcd_write_reg(9,  0x0);
+    lcd_write_reg(10, 0x0);
+    lcd_write_reg(16, 0x0);
+    lcd_write_reg(17, 0x0);
+    lcd_write_reg(18, 0x0);
+    lcd_write_reg(19, 0x0);
+    lcd_write_reg(20, 0x0);
+    lcd_write_reg(21, 0x0);
+    lcd_write_reg(22, 0x0);
+    lcd_write_reg(23, 0x0);
+    lcd_write_reg(24, 0x0);
+    lcd_write_reg(25, 0x0);
+    sleep_ms(10);
+    
+    lcd_write_reg(9,  0x4055);
+    lcd_write_reg(10, 0x0);
+    sleep_ms(40);
+    
+    lcd_write_reg(10, 0x2000);
+    sleep_ms(40);
+    
+    lcd_write_reg(1,  0x401D);
+    lcd_write_reg(2,  0x204);
+    lcd_write_reg(3,  0x100);
+    lcd_write_reg(4,  0x1000);
+    lcd_write_reg(5,  0x5033);
+    lcd_write_reg(6,  0x5);
+    lcd_write_reg(7,  0x1B);
+    lcd_write_reg(8,  0x800);
+    lcd_write_reg(16, 0x203);
+    lcd_write_reg(17, 0x302);
+    lcd_write_reg(18, 0xC08);
+    lcd_write_reg(19, 0xC08);
+    lcd_write_reg(20, 0x707);
+    lcd_write_reg(21, 0x707);
+    lcd_write_reg(22, 0x104);
+    lcd_write_reg(23, 0x306);
+    lcd_write_reg(24, 0x0);
+    lcd_write_reg(25, 0x0);
+    sleep_ms(60);
+    
+    lcd_write_reg(9,  0xA55);
+    lcd_write_reg(10, 0x111A);
+    sleep_ms(10);
+    
+    //TODO: other stuff!
+
+    /* tell that we're on now */
+    display_on = true;
+}
+
+static void lcd_display_off(void)
+{
+    display_on = false;
+
+    /* LQV shutdown sequence */
+    lcd_write_reg(9,  0x855);
+    sleep_ms(20);
+    
+    lcd_write_reg(9,  0x55);
+    lcd_write_reg(5,  0x4033);
+    lcd_write_reg(10, 0x0);
+    sleep_ms(20);
+    
+    lcd_write_reg(9, 0x0);
+    sleep_ms(10);
+    unsigned char temp[1];
+    temp[0] = 0;
+    spi_block_transfer(SPI_target_LTV250QV, temp, sizeof(temp), NULL, 0);
+    
+    IO_GIO_BITCLR2 = (1 << 4);
+    sleep_ms(5);
+    IO_GIO_BITCLR2 = (1 << 7);
+    sleep_ms(5);
+    IO_GIO_BITCLR2 = (1 << 0);
+    sleep_ms(2);
+    IO_GIO_BITCLR2 = (1 << 8);
+    IO_GIO_BITCLR2 = (1 << 5);
+    
+    /* Disable main power */
+    IO_GIO_BITCLR2 |= (1 << 3);
+}
+
+
+
+void lcd_enable(bool on)
+{
+    if (on == display_on)
+    return;
+
+    if (on)
+    {
+        display_on = true; //TODO: remove me!
+        //lcd_display_on();  /* Turn on display */
+        lcd_update();      /* Resync display */
+    }
+    else
+    {
+        display_on = false; //TODO: remove me!
+        //lcd_display_off();  /* Turn off display */
+    }
+}
+
+bool lcd_enabled(void)
+{
+    return display_on;
+}
+
+void lcd_set_direct_fb(bool yes)
+{
+    unsigned int addr;
+    direct_fb_access = yes;
+    if(yes)
+        addr = ((unsigned int)&lcd_framebuffer-CONFIG_SDRAM_START) / 32;
+    else
+        addr = ((unsigned int)FRAME-CONFIG_SDRAM_START) / 32;
+    IO_OSD_OSDWINADH = addr >> 16;
+    IO_OSD_OSDWIN0ADL = addr & 0xFFFF;
+}
+
+bool lcd_get_direct_fb(void)
+{
+    return direct_fb_access;
+}
+
+void lcd_init_device(void)
+{
+    /* Based on lcd-mr500.c from Catalin Patulea */
+    unsigned int addr;
+
+    /* Clear the Frame */
+    memset16(FRAME, 0x0000, LCD_WIDTH*LCD_HEIGHT);
+
+    IO_OSD_MODE = 0x00ff;
+    IO_OSD_VIDWINMD = 0x0002;
+    IO_OSD_OSDWINMD0 = 0x2001;
+    IO_OSD_OSDWINMD1 = 0x0002;
+    IO_OSD_ATRMD = 0x0000;
+    IO_OSD_RECTCUR = 0x0000;
+
+    IO_OSD_OSDWIN0OFST = (LCD_WIDTH*16) / 256;
+    addr = ((unsigned int)FRAME-CONFIG_SDRAM_START) / 32;
+    IO_OSD_OSDWINADH = addr >> 16;
+    IO_OSD_OSDWIN0ADL = addr & 0xFFFF;
+
+#ifndef ZEN_VISION
+    IO_OSD_BASEPX=26;
+    IO_OSD_BASEPY=5;
+#else
+    IO_OSD_BASEPX=80;
+    IO_OSD_BASEPY=0;
+#endif
+
+    IO_OSD_OSDWIN0XP = 0;
+    IO_OSD_OSDWIN0YP = 0;
+    IO_OSD_OSDWIN0XL = LCD_WIDTH;
+    IO_OSD_OSDWIN0YL = LCD_HEIGHT;
+#if 0
+    //TODO: set LCD clock!
+    IO_CLK_MOD1 &= ~0x18; // disable OSD clock and VENC clock
+    IO_CLK_02DIV = 3;
+    IO_CLK_OSEL = (IO_CLK_OSEL & ~0xF00) | 0x400; // reset 'General purpose clock output (GIO26, GIO34)' and set to 'PLLIN clock'
+    IO_CLK_SEL1 = (IO_CLK_SEL1 | 7) | 0x1000; // set to 'GP clock output 2 (GIO26, GIO34)' and turn on 'VENC clock'
+    IO_CLK_MOD1 |= 0x18; // enable OSD clock and VENC clock
+    
+    /* Set LCD values in OSD */
+    IO_VID_ENC_VMOD = ( ( (IO_VID_ENC_VMOD & 0xFFFF8C00) | 0x14) | 0x2400 ); // disable NTSC/PAL encoder & set mode to RGB666 parallel 18 bit
+    IO_VID_ENC_VDCTL = ( ( (IO_VID_ENC_VDCTL & 0xFFFFCFE8) | 0x20) | 0x4000 );
+    //TODO: finish this...
+#endif
+}
+
+
+/*** Update functions ***/
+
+
+
+/* Update a fraction of the display. */
+void lcd_update_rect(int x, int y, int width, int height)
+{
+    register fb_data *dst, *src;
+
+    if (!display_on || direct_fb_access)
+    return;
+
+    if (x + width > LCD_WIDTH)
+    width = LCD_WIDTH - x; /* Clip right */
+    if (x < 0)
+    width += x, x = 0; /* Clip left */
+    if (width <= 0)
+    return; /* nothing left to do */
+
+    if (y + height > LCD_HEIGHT)
+    height = LCD_HEIGHT - y; /* Clip bottom */
+    if (y < 0)
+    height += y, y = 0; /* Clip top */
+    if (height <= 0)
+    return; /* nothing left to do */
+
+#if CONFIG_ORIENTATION == SCREEN_PORTAIT
+    dst = (fb_data *)FRAME + LCD_WIDTH*y + x;
+    src = &lcd_framebuffer[y][x];
+
+    /* Copy part of the Rockbox framebuffer to the second framebuffer */
+    if (width < LCD_WIDTH)
+    {
+        /* Not full width - do line-by-line */
+        lcd_copy_buffer_rect(dst, src, width, height);
+    }
+    else
+    {
+        /* Full width - copy as one line */
+        lcd_copy_buffer_rect(dst, src, LCD_WIDTH*height, 1);
+    }
+#else
+    src = &lcd_framebuffer[y][x];
+    
+    register int xc, yc;
+    register fb_data *start=FRAME + LCD_HEIGHT*(LCD_WIDTH-x-1) + y + 1;
+
+    for(yc=0;yc<height;yc++)
+    {
+        dst=start+yc;
+        for(xc=0; xc<width; xc++)
+        {
+            *dst=*src++;
+            dst-=LCD_HEIGHT;
+        }
+        src+=x;
+    }
+#endif
+}
+
+/* Update the display.
+This must be called after all other LCD functions that change the display. */
+void lcd_update(void)
+{
+    if (!display_on || direct_fb_access)
+    return;
+#if CONFIG_ORIENTATION == SCREEN_PORTAIT
+    lcd_copy_buffer_rect((fb_data *)FRAME, &lcd_framebuffer[0][0],
+    LCD_WIDTH*LCD_HEIGHT, 1);
+#else
+    lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
+#endif
+}
+
+/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
+extern void lcd_write_yuv420_lines(fb_data *dst,
+unsigned char chroma_buf[LCD_HEIGHT/2*3],
+unsigned char const * const src[3],
+int width,
+int stride);
+/* Performance function to blit a YUV bitmap directly to the LCD */
+/* For the Gigabeat - show it rotated */
+/* So the LCD_WIDTH is now the height */
+void lcd_blit_yuv(unsigned char * const src[3],
+int src_x, int src_y, int stride,
+int x, int y, int width, int height)
+{
+    /* Caches for chroma data so it only need be recalculated every other
+    line */
+    unsigned char chroma_buf[LCD_HEIGHT/2*3]; /* 480 bytes */
+    unsigned char const * yuv_src[3];
+    off_t z;
+
+    if (!display_on || direct_fb_access)
+    return;
+
+    /* Sorry, but width and height must be >= 2 or else */
+    width &= ~1;
+    height >>= 1;
+
+    fb_data *dst = (fb_data*)FRAME + x * LCD_WIDTH + (LCD_WIDTH - y) - 1;
+
+    z = stride*src_y;
+    yuv_src[0] = src[0] + z + src_x;
+    yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
+    yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
+
+    do
+    {
+        lcd_write_yuv420_lines(dst, chroma_buf, yuv_src, width,
+        stride);
+
+        yuv_src[0] += stride << 1; /* Skip down two luma lines */
+        yuv_src[1] += stride >> 1; /* Skip down one chroma line */
+        yuv_src[2] += stride >> 1;
+        dst -= 2;
+    }
+    while (--height > 0);
+}
+