1 files changed, 252 insertions, 0 deletions

diff --git a/firmware/target/arm/tcc77x/iaudio7/lcd-iaudio7.c b/firmware/target/arm/tcc77x/iaudio7/lcd-iaudio7.c
new file mode 100644
index 0000000000..bbc20b6860
--- /dev/null
+++ b/firmware/target/arm/tcc77x/iaudio7/lcd-iaudio7.c
@@ -0,0 +1,252 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/*
+  Thanks Hein-Pieter van Braam for initial work.
+
+  Mostly based on lcd-h300.c, adapted for the iaudio 7 by Vitja Makarov
+ */
+
+#include <config.h>
+
+#include <kernel.h>
+#include <cpu.h>
+#include <lcd.h>
+#include <system-target.h>
+
+#include "hd66789r.h"
+
+static bool display_on = false; /* is the display turned on? */
+
+static inline void lcd_write_reg(int reg, int data)
+{
+    GPIOA &= ~0x400;
+    outw(0, 0x50010000);
+    outw(reg << 1, 0x50010000);
+    GPIOA |= 0x400;
+
+    outw((data & 0xff00) >> 7, 0x50010008);
+    outw((data << 24) >> 23, 0x50010008);
+}
+
+static void lcd_write_cmd(int reg)
+{
+    GPIOA &= ~0x400;
+    outw(0, 0x50010000);
+    outw(reg << 1, 0x50010000);
+    GPIOA |= 0x400;
+}
+
+/* Do what OF do */
+static void lcd_delay(int x)
+{
+    int i;
+
+    x *= 0xc35;
+    for (i = 0; i < x * 8; i++) {
+    }
+}
+
+
+static void _display_on(void)
+{
+    GPIOA_DIR |= 0x8000 | 0x400;
+    GPIOA |= 0x8000;
+
+    /* power setup */
+    lcd_write_reg(R_START_OSC, 0x0001);
+    lcd_delay(0xf);
+    lcd_write_reg(R_DISP_CONTROL1, 0x000);
+    lcd_delay(0xa);
+    lcd_write_reg(R_POWER_CONTROL2, 0x0002);
+    lcd_write_reg(R_POWER_CONTROL3, 0x000a);
+    lcd_write_reg(R_POWER_CONTROL4, 0xc5a);
+    lcd_write_reg(R_POWER_CONTROL1, 0x0004);
+    lcd_write_reg(R_POWER_CONTROL1, 0x0134);
+    lcd_write_reg(R_POWER_CONTROL2, 0x0111);
+    lcd_write_reg(R_POWER_CONTROL3, 0x001c);
+    lcd_delay(0x28);
+    lcd_write_reg(R_POWER_CONTROL4, 0x2c40);
+    lcd_write_reg(R_POWER_CONTROL1, 0x0510);
+    lcd_delay(0x3c);
+
+    /* lcd init 2 */
+    lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x0113);
+    lcd_write_reg(R_DRV_WAVEFORM_CONTROL, 0x0700);
+    lcd_write_reg(R_ENTRY_MODE, 0x1038);
+    lcd_write_reg(R_DISP_CONTROL2, 0x0508);     // 0x3c8, TMM
+    lcd_write_reg(R_DISP_CONTROL3, 0x0000);
+    lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0003);
+    lcd_write_reg(R_RAM_ADDR_SET, 0x0000);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0406);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0303);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0000);
+    lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0305);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0404);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0000);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0000);
+    lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0503);
+    lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x1d05);
+    lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x1d05);
+    lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000);
+    lcd_write_reg(R_1ST_SCR_DRV_POS, 0x9f00);
+    lcd_write_reg(R_2ND_SCR_DRV_POS, 0x9f00);
+    lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0x7f00);
+    lcd_write_reg(R_VERT_RAM_ADDR_POS, 0x9f00);
+
+    /* lcd init 3 */
+    lcd_write_reg(R_POWER_CONTROL1, 0x4510);
+    lcd_write_reg(R_DISP_CONTROL1, 0x0005);
+    lcd_delay(0x28);
+    lcd_write_reg(R_DISP_CONTROL1, 0x0025);
+    lcd_write_reg(R_DISP_CONTROL1, 0x0027);
+    lcd_delay(0x28);
+    lcd_write_reg(R_DISP_CONTROL1, 0x0037);
+
+    display_on = true;
+}
+
+void lcd_init_device(void)
+{
+    /* Configure external memory banks */
+    CSCFG1 = 0x3d500023;
+
+    /* may be reset */
+    GPIOA |= 0x8000;
+
+    _display_on();
+}
+
+void lcd_enable(bool on)
+{
+    if (display_on == on)
+        return;
+
+    if (on) {
+        _display_on();
+//      lcd_call_enable_hook();
+    } else {
+        /** Off sequence according to datasheet, p. 130 **/
+        lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0002);   /* EQ=0, 18 clks/line */
+        lcd_write_reg(R_DISP_CONTROL1, 0x0036); /* GON=1, DTE=1, REV=1, D1-0=10 */
+        sleep(2);
+
+        lcd_write_reg(R_DISP_CONTROL1, 0x0026); /* GON=1, DTE=0, REV=1, D1-0=10 */
+        sleep(2);
+
+        lcd_write_reg(R_DISP_CONTROL1, 0x0000); /* GON=0, DTE=0, D1-0=00 */
+
+        lcd_write_reg(R_POWER_CONTROL1, 0x0000);        /* SAP2-0=000, AP2-0=000 */
+        lcd_write_reg(R_POWER_CONTROL3, 0x0000);        /* PON=0 */
+        lcd_write_reg(R_POWER_CONTROL4, 0x0000);        /* VCOMG=0 */
+
+        /* datasheet p. 131 */
+        lcd_write_reg(R_POWER_CONTROL1, 0x0001);        /* STB=1: standby mode */
+
+        display_on = false;
+    }
+}
+
+bool lcd_enabled(void)
+{
+    return display_on;
+}
+
+
+#define RGB(r,g,b) ((((r)&0x3f) << 12)|(((g)&0x3f) << 6)|(((b)&0x3f)))
+
+
+void lcd_update(void)
+{
+    lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
+}
+
+/* todo: need tests */
+void lcd_update_rect(int sx, int sy, int width, int height)
+{
+    int x, y;
+
+    if (!display_on)
+        return;
+
+    if (width <= 0 || height <= 0)      /* nothing to do */
+        return;
+
+    width += sx;
+    height += sy;
+
+    if (width > LCD_WIDTH)
+        width = LCD_WIDTH;
+    if (height > LCD_HEIGHT)
+        height = LCD_HEIGHT;
+
+    lcd_write_reg(R_ENTRY_MODE, 0x1028);
+    /* set update window */
+    lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_HEIGHT - 1) << 8);
+    lcd_write_reg(R_VERT_RAM_ADDR_POS, ((width - 1) << 8) | sx);
+    lcd_write_reg(R_RAM_ADDR_SET, (sx << 8) | (LCD_HEIGHT - sy - 1));
+    lcd_write_cmd(R_WRITE_DATA_2_GRAM);
+
+    for (y = sy; y < height; y++) {
+        for (x = sx; x < width; x++) {
+            fb_data c;
+            unsigned long color;
+
+            c = lcd_framebuffer[y][x];
+            color =
+                ((c & 0x1f) << 1) | ((c & 0x7e0) << 1) | ((c & 0xf800) <<
+                                                          2);
+
+            /* TODO: our color is 18-bit */
+            outw((color >> 9) & 0x1ff, 0x50010008);
+            outw((color) & 0x1ff, 0x50010008);
+        }
+    }
+}
+
+void lcd_set_contrast(int val)
+{
+    (void) val;
+}
+
+void lcd_set_invert_display(bool yesno)
+{
+    (void) yesno;
+}
+
+void lcd_set_flip(bool yesno)
+{
+    (void) yesno;
+}
+
+/* TODO: implement me */
+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)
+{
+    if (!display_on)
+        return;
+
+    width &= ~1;                /* stay on the safe side */
+    height &= ~1;
+
+    panicf("%s", __func__);
+}