4 files changed, 65 insertions, 465 deletions

diff --git a/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c b/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c
index f036792fc0..858e9aed49 100644
--- a/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c
+++ b/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c
@@ -26,8 +26,12 @@
 #include "ascodec-target.h"
 #include "as3514.h"
 
-/* TODO: This file is copy & pasted from backlight-e200v2-fuze.c, as I think
- * it'll be the same for c200v2; prove it */
+bool _backlight_init(void)
+{
+    GPIOA_DIR |= 1<<5;
+    return true;
+}
+
 void _backlight_set_brightness(int brightness)
 {
     if (brightness > 0)
@@ -41,12 +45,12 @@ void _backlight_on(void)
 #ifdef HAVE_LCD_ENABLE
     lcd_enable(true); /* power on lcd + visible display */
 #endif
-    ascodec_write(AS3514_DCDC15, backlight_brightness);
+    GPIOA_PIN(5) = 1<<5;
 }
 
 void _backlight_off(void)
 {
-    ascodec_write(AS3514_DCDC15, 0x0);
+    GPIOA_PIN(5) = 0;
 #ifdef HAVE_LCD_ENABLE
     lcd_enable(false); /* power off visible display */
 #endif
diff --git a/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h b/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h
index e8a60fa881..06076dd39f 100644
--- a/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h
+++ b/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h
@@ -21,7 +21,9 @@
 #ifndef BACKLIGHT_TARGET_H
 #define BACKLIGHT_TARGET_H
 
-#define _backlight_init() true
+#include <stdbool.h>
+
+bool _backlight_init(void);
 void _backlight_on(void);
 void _backlight_off(void);
 void _backlight_set_brightness(int brightness);
diff --git a/firmware/target/arm/as3525/sansa-c200v2/button-c200v2.c b/firmware/target/arm/as3525/sansa-c200v2/button-c200v2.c
index 86a6eb0c73..d3504c97e9 100644
--- a/firmware/target/arm/as3525/sansa-c200v2/button-c200v2.c
+++ b/firmware/target/arm/as3525/sansa-c200v2/button-c200v2.c
@@ -19,47 +19,70 @@
  *
  ****************************************************************************/
 
-/* Taken from button-h10.c by Barry Wardell and reverse engineering by MrH. */
-
 #include "system.h"
+#include "button-target.h"
 #include "button.h"
 #include "backlight.h"
 #include "powermgmt.h"
 
 
-#ifndef BOOTLOADER
-/* Buttons */
+unsigned short _dbop_din    = 0;
+
+/* in the lcd driver */
+extern bool lcd_button_support(void);
+
 static bool hold_button     = false;
+#ifndef BOOTLOADER
 static bool hold_button_old = false;
-#define _button_hold() hold_button
-#else
-#define _button_hold() false  /* FIXME */
-#endif /* BOOTLOADER */
-static int  int_btn         = BUTTON_NONE;
+#endif
 
 void button_init_device(void)
 {
+    GPIOA_DIR &= ~(1<<3);
 }
 
 bool button_hold(void)
 {
-    return _button_hold();
+    return hold_button;
+}
+
+static void button_read_dbop(void)
+{
+    /* Set up dbop for input */
+    DBOP_CTRL |= (1<<19);                /* Tri-state DBOP on read cycle */
+    DBOP_CTRL &= ~(1<<16);               /* disable output (1:write enabled) */
+    DBOP_TIMPOL_01 = 0xe167e167;         /* Set Timing & Polarity regs 0 & 1 */
+    DBOP_TIMPOL_23 = 0xe167006e;         /* Set Timing & Polarity regs 2 & 3 */
+
+    int i = 50;
+    while(i--) asm volatile ("nop\n");
+
+    DBOP_CTRL |= (1<<15);                /* start read */
+    while (!(DBOP_STAT & (1<<16)));      /* wait for valid data */
+
+    _dbop_din = DBOP_DIN;                /* Read dbop data*/
+
+    /* Reset dbop for output */
+    DBOP_TIMPOL_01 = 0x6e167;            /* Set Timing & Polarity regs 0 & 1 */
+    DBOP_TIMPOL_23 = 0xa167e06f;         /* Set Timing & Polarity regs 2 & 3 */
+    DBOP_CTRL |= (1<<16);                /* Enable output (0:write disable)  */
+    DBOP_CTRL &= ~(1<<19);               /* Tri-state when no active write */
 }
 
-/* device buttons */
-void button_int(void)
+/*
+ * Get button pressed from hardware
+ */
+int button_read_device(void)
 {
-    int delay = 0x50;
+    int delay;
     int dir_save_c = 0;
     int afsel_save_c = 0;
-
-    int_btn = BUTTON_NONE;
+    int btn = BUTTON_NONE;
 
     /* Save the current direction and afsel */
     dir_save_c = GPIOC_DIR;
     afsel_save_c = GPIOC_AFSEL;
 
-    GPIOA_DIR &= ~(1<<3);
     GPIOC_AFSEL &= ~(1<<6|1<<5|1<<4|1<<3);
     GPIOC_DIR |= (1<<6|1<<5|1<<4|1<<3);
 
@@ -72,32 +95,32 @@ void button_int(void)
     GPIOC_PIN(3) = (1<<3);
     GPIOC_DIR &= ~(1<<6|1<<5|1<<4|1<<3);
 
-    while(delay--);
+    delay = 100;
+    while(delay--)
+        asm volatile("nop\n");
     
     /* direct GPIO connections */
     if (GPIOA_PIN(3))
-        int_btn |= BUTTON_POWER;
+        btn |= BUTTON_POWER;
     if (!GPIOC_PIN(6))
-        int_btn |= BUTTON_RIGHT;
+        btn |= BUTTON_RIGHT;
     if (!GPIOC_PIN(5))
-        int_btn |= BUTTON_UP;
+        btn |= BUTTON_UP;
     if (!GPIOC_PIN(4))
-        int_btn |= BUTTON_SELECT;
+        btn |= BUTTON_SELECT;
     if (!GPIOC_PIN(3))
-        int_btn |= BUTTON_DOWN;
+        btn |= BUTTON_DOWN;
 
     /* return to settings needed for lcd */
     GPIOC_DIR = dir_save_c;
     GPIOC_AFSEL = afsel_save_c;
-}
 
-/*
- * Get button pressed from hardware
- */
-int button_read_device(void)
-{
-    /* Read buttons directly */
-    button_int();
+    if(lcd_button_support())
+        button_read_dbop();
+
+    if(_dbop_din & (1<<6))
+        btn |= BUTTON_LEFT;
+
 #ifndef BOOTLOADER
     /* light handling */
     if (hold_button != hold_button_old)
@@ -107,5 +130,5 @@ int button_read_device(void)
     }
 #endif /* BOOTLOADER */
 
-    return int_btn;
+    return btn;
 }
diff --git a/firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c b/firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c
deleted file mode 100644
index e16b082ce5..0000000000
--- a/firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id: lcd-e200v2.c 19453 2008-12-16 02:50:39Z saratoga $
- *
- * Copyright (C) 2004 by Linus Nielsen Feltzing
- *
- * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-/* FIXME: Copied from e200v2 lcd driver, unlikely to work, but maybe */
-
-#include "config.h"
-
-#include "cpu.h"
-#include "lcd.h"
-#include "kernel.h"
-#include "thread.h"
-#include <string.h>
-#include <stdlib.h>
-#include "file.h"
-#include "debug.h"
-#include "system.h"
-#include "font.h"
-#include "bidi.h"
-#include "clock-target.h"
-
-static bool display_on = false; /* is the display turned on? */
-static bool display_flipped = false;
-static int y_offset = 0; /* needed for flip */
-
-/* register defines */
-#define R_START_OSC             0x00
-#define R_DRV_OUTPUT_CONTROL    0x01
-#define R_DRV_WAVEFORM_CONTROL  0x02
-#define R_ENTRY_MODE            0x03
-#define R_COMPARE_REG1          0x04
-#define R_COMPARE_REG2          0x05
-
-#define R_DISP_CONTROL1     0x07
-#define R_DISP_CONTROL2     0x08
-#define R_DISP_CONTROL3     0x09
-
-#define R_FRAME_CYCLE_CONTROL 0x0b
-#define R_EXT_DISP_IF_CONTROL 0x0c
-
-#define R_POWER_CONTROL1    0x10
-#define R_POWER_CONTROL2    0x11
-#define R_POWER_CONTROL3    0x12
-#define R_POWER_CONTROL4    0x13
-
-#define R_RAM_ADDR_SET  0x21
-#define R_WRITE_DATA_2_GRAM 0x22
-
-#define R_GAMMA_FINE_ADJ_POS1   0x30
-#define R_GAMMA_FINE_ADJ_POS2   0x31
-#define R_GAMMA_FINE_ADJ_POS3   0x32
-#define R_GAMMA_GRAD_ADJ_POS    0x33
-
-#define R_GAMMA_FINE_ADJ_NEG1   0x34
-#define R_GAMMA_FINE_ADJ_NEG2   0x35
-#define R_GAMMA_FINE_ADJ_NEG3   0x36
-#define R_GAMMA_GRAD_ADJ_NEG    0x37
-
-#define R_GAMMA_AMP_ADJ_RES_POS     0x38
-#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39 
-
-#define R_GATE_SCAN_POS         0x40
-#define R_VERT_SCROLL_CONTROL   0x41
-#define R_1ST_SCR_DRV_POS       0x42
-#define R_2ND_SCR_DRV_POS       0x43
-#define R_HORIZ_RAM_ADDR_POS    0x44
-#define R_VERT_RAM_ADDR_POS     0x45
-
-#define R_ENTRY_MODE_HORZ 0x7030
-#define R_ENTRY_MODE_VERT 0x7038
-#define R_ENTRY_MODE_SOLID_VERT  0x1038
-
-/* TODO: Implement this function */
-static void lcd_delay(int x)
-{
-    /* This is just arbitrary - the OF does something more complex */
-    x *= 1024;
-    while (x--);
-}
-
-/* DBOP initialisation, do what OF does */
-static void ams3525_dbop_init(void)
-{
-    CGU_DBOP = (1<<3) | AS3525_DBOP_DIV;
-
-    DBOP_TIMPOL_01 = 0xe167e167;
-    DBOP_TIMPOL_23 = 0xe167006e;
-    DBOP_CTRL = 0x41008;
-
-    GPIOB_AFSEL = 0xfc;
-    GPIOC_AFSEL = 0xff;
-
-    DBOP_TIMPOL_23 = 0x6000e;
-    DBOP_CTRL = 0x51008;
-    DBOP_TIMPOL_01 = 0x6e167;
-    DBOP_TIMPOL_23 = 0xa167e06f;
-
-    /* TODO: The OF calls some other functions here, but maybe not important */
-}
-
-
-static void lcd_write_cmd(int cmd)
-{
-    /* Write register */
-    DBOP_CTRL &= ~(1<<14);
-
-    DBOP_TIMPOL_23 = 0xa167006e;
-
-    DBOP_DOUT = cmd;
-
-    /* Wait for fifo to empty */
-    while ((DBOP_STAT & (1<<10)) == 0);
-
-    DBOP_TIMPOL_23 = 0xa167e06f;
-}
-
-void lcd_write_data(const fb_data* p_bytes, int count)
-{
-    while (count--)
-    {
-        DBOP_DOUT = *p_bytes++;
-
-        /* Wait for fifo to empty */
-        while ((DBOP_STAT & (1<<10)) == 0);
-    }
-}
-
-static void lcd_write_reg(int reg, int value)
-{
-    unsigned short data = value;
-
-    lcd_write_cmd(reg);
-    lcd_write_data(&data, 1);
-}
-
-/*** hardware configuration ***/
-
-void lcd_set_contrast(int val)
-{
-    (void)val;
-}
-
-void lcd_set_invert_display(bool yesno)
-{
-    (void)yesno;
-}
-
-static void flip_lcd(bool yesno)
-{
-    (void)yesno;
-}
-
-
-/* turn the display upside down (call lcd_update() afterwards) */
-void lcd_set_flip(bool yesno)
-{
-    display_flipped = yesno;
-    y_offset = yesno ? 4 : 0;   /* FIXME: Is a y_offset needed? */
-
-    if (display_on)
-        flip_lcd(yesno);
-}
-
-static void _display_on(void)
-{
-    /* Initialisation the display the same way as the original firmware */
-
-    lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscilation */
-
-    lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x011b); /* 220 lines, GS=0, SS=1 */
-
-    /* B/C = 1: n-line inversion form
-     * EOR = 1: polarity inversion occurs by applying an EOR to odd/even
-     *          frame select signal and an n-line inversion signal.
-     * FLD = 01b: 1 field interlaced scan, external display iface */
-    lcd_write_reg(R_DRV_WAVEFORM_CONTROL, 0x0700);
-
-    /* Address counter updated in horizontal direction; left to right;
-     * vertical increment horizontal increment.
-     * data format for 8bit transfer or spi = 65k (5,6,5) */
-    lcd_write_reg(R_ENTRY_MODE, 0x0030);
-
-    /* Replace data on writing to GRAM */
-    lcd_write_reg(R_COMPARE_REG1, 0);
-    lcd_write_reg(R_COMPARE_REG2, 0);
-
-    lcd_write_reg(R_DISP_CONTROL1, 0x0000);  /* GON = 0, DTE = 0, D1-0 = 00b */
-
-    /* Front porch lines: 2; Back porch lines: 2; */
-    lcd_write_reg(R_DISP_CONTROL2, 0x0203);
-
-    /* Scan cycle = 0 frames */
-    lcd_write_reg(R_DISP_CONTROL3, 0x0000);
-
-    /* 16 clocks */
-    lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0000);
-
-    /* 18-bit RGB interface (one transfer/pixel)
-     * internal clock operation;
-     * System interface/VSYNC interface */
-    lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0x0000);
-
-
-    /* zero everything*/
-    lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* STB = 0, SLP = 0 */
-
-    lcd_delay(10);
-
-    /* initialise power supply */
-
-    /* DC12-10 = 000b: Step-up1 = clock/8,
-     * DC02-00 = 000b: Step-up2 = clock/16,
-     * VC2-0   = 010b: VciOUT = 0.87 * VciLVL */
-    lcd_write_reg(R_POWER_CONTROL2, 0x0002); 
-
-    /* VRH3-0 = 1000b: Vreg1OUT = REGP * 1.90 */
-    lcd_write_reg(R_POWER_CONTROL3, 0x0008);
-
-    lcd_delay(40);
-    
-    lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */
-
-    /* This register is unknown */
-    lcd_write_reg(0x56, 0x80f);
-
-
-    lcd_write_reg(R_POWER_CONTROL1, 0x4140);
-
-    lcd_delay(10);
-
-    lcd_write_reg(R_POWER_CONTROL2, 0x0000); 
-    lcd_write_reg(R_POWER_CONTROL3, 0x0013); 
-
-    lcd_delay(20);
-
-    lcd_write_reg(R_POWER_CONTROL4, 0x6d0e);
-
-    lcd_delay(20);
-
-    lcd_write_reg(R_POWER_CONTROL4, 0x6d0e);
-
-    lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0002);
-    lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0707);
-    lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0182);
-    lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0203);
-    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0706);
-    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0006);
-    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0706);
-    lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0000);
-    lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x030f);
-    lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x0f08);
-
-
-    lcd_write_reg(R_RAM_ADDR_SET, 0);
-    lcd_write_reg(R_GATE_SCAN_POS, 0);
-    lcd_write_reg(R_VERT_SCROLL_CONTROL, 0);
-    
-    lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
-    lcd_write_reg(R_2ND_SCR_DRV_POS, (LCD_HEIGHT-1) << 8);
-
-    lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH-1) << 8);
-    lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_HEIGHT-1) << 8);
-
-
-    lcd_write_reg(R_DISP_CONTROL1, 0x0037);
-
-    display_on=true;  /* must be done before calling lcd_update() */
-    lcd_update();
-}
-
-/* LCD init */
-void lcd_init_device(void)
-{
-    ams3525_dbop_init();
-
-    /* Init GPIOs the same as the OF */
-
-    GPIOA_DIR |= (1<<5);
-    GPIOA_PIN(5) = 0;
-
-    GPIOA_PIN(3) = (1<<3);
-
-    GPIOA_DIR |= (3<<3);
-
-    GPIOA_PIN(3) = (1<<3);
-
-    GPIOA_PIN(4) = 0;  /*c80b0040 := 0;*/
-
-    GPIOA_DIR |= (1<<7);
-    GPIOA_PIN(7) = 0;
-
-    lcd_delay(1);
-
-    GPIOA_PIN(5) = (1<<5);
-
-    lcd_delay(1);
-
-    _display_on();
-}
-
-void lcd_enable(bool on)
-{
-    if(display_on!=on)
-    {
-        if(on)
-        {
-            _display_on();
-            lcd_activation_call_hook();
-        }
-        else
-        {
-            /* TODO: Implement off sequence */
-            display_on=false;
-        }
-    }
-}
-
-bool lcd_active(void)
-{
-    return display_on;
-}
-
-void lcd_sleep(void)
-{
-    /* TODO */
-}
-
-/*** update functions ***/
-
-/* Performance function to blit a YUV bitmap directly to the LCD
- * src_x, src_y, width and height should be even
- * x, y, width and height have to be within LCD bounds
- */
-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)
-{
-    (void)src;
-    (void)src_x;
-    (void)src_y;
-    (void)stride;
-    (void)x;
-    (void)y;
-    (void)width;
-    (void)height;
-}
-
-/* Update the display.
-   This must be called after all other LCD functions that change the display. */
-void lcd_update(void)
-{
-    if (!display_on)
-        return;
-
-    lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
-
-    /* Set start position and window */
-    lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH-1) << 8);
-    lcd_write_reg(R_VERT_RAM_ADDR_POS, 
-                  ((y_offset + LCD_HEIGHT-1) << 8) | y_offset);
-    lcd_write_reg(R_RAM_ADDR_SET, (y_offset) << 8);
-
-    lcd_write_cmd(R_WRITE_DATA_2_GRAM);
-
-    lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
-    
-} /* lcd_update */
-
-
-/* Update a fraction of the display. */
-void lcd_update_rect(int x, int y, int width, int height)
-{
-    int ymax;
-    const unsigned short *ptr;
-
-    if (!display_on)
-        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 */
-
-    ymax = y + height;
-    if (ymax > LCD_HEIGHT)
-        ymax = LCD_HEIGHT; /* Clip bottom */
-    if (y < 0)
-        y = 0; /* Clip top */
-    if (y >= ymax)
-        return; /* nothing left to do */
-
-    lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
-    /* Set start position and window */
-    lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 
-                  ((x + width-1) << 8) | x);
-    lcd_write_reg(R_VERT_RAM_ADDR_POS, 
-                  ((y_offset + y + height - 1) << 8) | (y_offset + y));
-    lcd_write_reg(R_RAM_ADDR_SET, ((y + y_offset) << 8) | x);
-
-    lcd_write_cmd(R_WRITE_DATA_2_GRAM);
-
-    ptr = (unsigned short *)&lcd_framebuffer[y][x];
-
-    do
-    {
-        lcd_write_data(ptr, width);
-        ptr += LCD_WIDTH;
-    }
-    while (++y < ymax);
-} /* lcd_update_rect */