1 files changed, 425 insertions, 0 deletions

diff --git a/firmware/target/coldfire/iriver/h300/lcd-h300.c b/firmware/target/coldfire/iriver/h300/lcd-h300.c
new file mode 100644
index 0000000000..3e5642e35d
--- /dev/null
+++ b/firmware/target/coldfire/iriver/h300/lcd-h300.c
@@ -0,0 +1,425 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2004 by Linus Nielsen Feltzing
+ *
+ * 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 "thread.h"
+#include <string.h>
+#include <stdlib.h>
+#include "file.h"
+#include "debug.h"
+#include "system.h"
+#include "font.h"
+#include "bidi.h"
+
+static bool display_on = false; /* is the display turned on? */
+static bool display_flipped = false;
+static int xoffset = 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 LCD_CMD  (*(volatile unsigned short *)0xf0000000)
+#define LCD_DATA (*(volatile unsigned short *)0xf0000002)
+
+/* called very frequently - inline! */
+static inline void lcd_write_reg(int reg, int val)
+{
+    LCD_CMD = reg;
+    LCD_DATA = val;
+}
+
+/* called very frequently - inline! */
+static inline void lcd_begin_write_gram(void)
+{
+    LCD_CMD = R_WRITE_DATA_2_GRAM;
+}
+
+/*** 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)
+{
+    if (yesno)
+    {
+        lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x031b); /* 224 lines, GS=SS=1 */
+        lcd_write_reg(R_GATE_SCAN_POS, 0x0002);      /* 16 lines offset */
+        lcd_write_reg(R_1ST_SCR_DRV_POS, 0xdf04);    /* 4..223 */
+    }
+    else
+    {
+        lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x001b); /* 224 lines, GS=SS=0 */
+        lcd_write_reg(R_GATE_SCAN_POS, 0x0000);
+        lcd_write_reg(R_1ST_SCR_DRV_POS, 0xdb00);    /* 0..219 */
+    }
+}
+
+/* turn the display upside down (call lcd_update() afterwards) */
+void lcd_set_flip(bool yesno)
+{
+    display_flipped = yesno;
+    xoffset = yesno ? 4 : 0;
+
+    if (display_on)
+        flip_lcd(yesno);
+}
+
+static void _display_on(void)
+{
+    /** Sequence according to datasheet, p. 132 **/
+    
+    lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscilation */
+    sleep(1);
+
+    /* zero everything*/
+    lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* STB = 0, SLP = 0 */
+    lcd_write_reg(R_DISP_CONTROL1, 0x0000);  /* GON = 0, DTE = 0, D1-0 = 00b */
+    lcd_write_reg(R_POWER_CONTROL3, 0x0000); /* PON = 0 */
+    lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */
+    sleep(1);
+
+    /* 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);
+    
+    /* VDV4-0 = 00110b: VcomA = Vreg1OUT * 0.76,
+     * VCM4-0 = 10000b: VcomH = Vreg1OUT * 0.70*/
+    lcd_write_reg(R_POWER_CONTROL4, 0x0610);     
+
+    lcd_write_reg(R_POWER_CONTROL1, 0x0044); /* AP2-0 = 100b, DK = 1 */
+    lcd_write_reg(R_POWER_CONTROL3, 0x0018); /* PON = 1 */
+
+    sleep(4); /* Step-up circuit stabilising time */
+    
+    /* start power supply */
+
+    lcd_write_reg(R_POWER_CONTROL1, 0x0540); /* BT2-0 = 101b, DK = 0 */
+    lcd_write_reg(R_POWER_CONTROL4, 0x2610); /* VCOMG = 1 */
+
+    /* other settings */
+
+    /* 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 vertical direction; left to right;
+     * vertical increment horizontal increment.
+     * data format for 8bit transfer or spi = 65k (5,6,5)
+     * Reverse order of RGB to BGR for 18bit data written to GRAM
+     * Replace data on writing to GRAM */
+    lcd_write_reg(R_ENTRY_MODE, 0x7038);
+
+    flip_lcd(display_flipped);
+
+    lcd_write_reg(R_2ND_SCR_DRV_POS, 0x0000);
+    lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000);
+
+    /* 19 clocks,no equalization */
+    lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0002);
+
+    /* Transfer mode for RGB interface disabled
+     * internal clock operation;
+     * System interface/VSYNC interface */
+    lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0x0003);
+
+    /* Front porch lines: 8; Back porch lines: 8; */
+    lcd_write_reg(R_DISP_CONTROL2, 0x0808);
+
+    /* Scan mode by the gate driver in the non-display area: disabled;
+     * Cycle of scan by the gate driver - set to 31frames(518ms), 
+     * disabled by above setting */
+    lcd_write_reg(R_DISP_CONTROL3, 0x003f);
+
+    lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0003);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0707);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0007);
+    lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0705);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0007);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0000);
+    lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0407);
+    lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0507);
+    lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x1d09);
+    lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x0303);
+
+    display_on=true;  /* must be done before calling lcd_update() */
+    lcd_update();
+    
+    sleep(4); /* op-amp stabilising time */
+ 
+    /** Sequence according to datasheet, p. 130 **/
+
+    lcd_write_reg(R_POWER_CONTROL1, 0x4540); /* SAP2-0=100, BT2-0=101, AP2-0=100 */
+    lcd_write_reg(R_DISP_CONTROL1, 0x0005);  /* GON=0, DTE=0, REV=1, D1-0=01 */
+    sleep(2);
+    
+    lcd_write_reg(R_DISP_CONTROL1, 0x0025);  /* GON=1, DTE=0, REV=1, D1-0=01 */
+    lcd_write_reg(R_DISP_CONTROL1, 0x0027);  /* GON=1, DTE=0, REV=1, D1-0=11 */
+    sleep(2);
+
+    lcd_write_reg(R_DISP_CONTROL1, 0x0037);  /* GON=1, DTE=1, REV=1, D1-0=11 */
+}
+
+/* LCD init */
+void lcd_init_device(void)
+{
+    /* GPO46 is LCD RESET */
+    or_l(0x00004000, &GPIO1_OUT);
+    or_l(0x00004000, &GPIO1_ENABLE);
+    or_l(0x00004000, &GPIO1_FUNCTION);
+
+    /* Reset LCD */
+    and_l(~0x00004000, &GPIO1_OUT);
+    sleep(1);
+    or_l(0x00004000, &GPIO1_OUT);
+    sleep(1);
+
+    _display_on();
+}
+
+void lcd_enable(bool on)
+{
+    if(display_on!=on)
+    {
+        if(on)
+        {
+            _display_on();
+        }
+        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;
+        }
+    }
+}
+
+/*** update functions ***/
+
+/* Performance function that works with an external buffer
+   note that by and bheight are in 8-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;
+    /*if(display_on)*/
+}
+
+/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420.
+ * y should have two lines of Y back to back.
+ * bu and rv should contain the Cb and Cr data for the two lines of Y.
+ * Needs EMAC set to saturated, signed integer mode.
+ */
+extern void lcd_write_yuv420_lines(const unsigned char *y,
+                                   const unsigned char *bu,
+                                   const unsigned char *rv, int width);
+
+/* 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_yuv_blit(unsigned char * const src[3],
+                  int src_x, int src_y, int stride,
+                  int x, int y, int width, int height)
+{
+    /* IRAM Y, Cb and Cb buffers. */
+    unsigned char y_ibuf[LCD_WIDTH*2];
+    unsigned char bu_ibuf[LCD_WIDTH/2];
+    unsigned char rv_ibuf[LCD_WIDTH/2];
+    const unsigned char *ysrc, *usrc, *vsrc;
+    const unsigned char *ysrc_max;
+
+    if (!display_on)
+        return;
+
+    width &= ~1;  /* stay on the safe side */
+    height &= ~1;
+
+    /* Set start position and window */
+    lcd_write_reg(R_VERT_RAM_ADDR_POS,((x+xoffset+width-1) << 8) | (x+xoffset));
+    lcd_write_reg(R_RAM_ADDR_SET, ((x+xoffset) << 8) | y);
+
+    lcd_begin_write_gram();
+
+    ysrc = src[0] + src_y * stride + src_x;
+    usrc = src[1] + (src_y * stride >> 2) + (src_x >> 1);
+    vsrc = src[2] + (src_y * stride >> 2) + (src_x >> 1);
+    ysrc_max = ysrc + height * stride;
+
+    coldfire_set_macsr(EMAC_SATURATE);
+    do
+    {
+        memcpy(y_ibuf, ysrc, width);
+        memcpy(y_ibuf + width, ysrc + stride, width);
+        memcpy(bu_ibuf, usrc, width >> 1);
+        memcpy(rv_ibuf, vsrc, width >> 1);
+        lcd_write_yuv420_lines(y_ibuf, bu_ibuf, rv_ibuf, width);
+        ysrc += 2 * stride;
+        usrc += stride >> 1;
+        vsrc += stride >> 1;
+    }
+    while (ysrc < ysrc_max);
+}
+
+/* Update the display.
+   This must be called after all other LCD functions that change the display. */
+void lcd_update(void) ICODE_ATTR;
+void lcd_update(void)
+{
+    if(display_on){
+        /* reset update window */
+        lcd_write_reg(R_VERT_RAM_ADDR_POS,((xoffset+219)<<8) | xoffset);
+
+        /* Copy display bitmap to hardware */
+        lcd_write_reg(R_RAM_ADDR_SET, xoffset << 8);
+        lcd_begin_write_gram();
+
+        DAR3 = 0xf0000002;
+        SAR3 = (unsigned long)lcd_framebuffer;
+        BCR3 = LCD_WIDTH*LCD_HEIGHT*2;
+        DCR3 = DMA_AA | DMA_BWC(1)
+             | DMA_SINC | DMA_SSIZE(DMA_SIZE_LINE) 
+             | DMA_DSIZE(DMA_SIZE_WORD) | DMA_START;
+
+        while (!(DSR3 & 1));
+        DSR3 = 1;
+    }
+}
+
+
+/* Update a fraction of the display. */
+void lcd_update_rect(int, int, int, int) ICODE_ATTR;
+void lcd_update_rect(int x, int y, int width, int height)
+{
+    unsigned long dma_addr;
+
+    if(display_on) {
+
+        if(x + width > LCD_WIDTH)
+            width = LCD_WIDTH - x;
+        if(width <= 0) /* nothing to do */
+            return;
+        if(y + height > LCD_HEIGHT)
+            height = LCD_HEIGHT - y;
+
+        /* set update window */
+
+        lcd_write_reg(R_VERT_RAM_ADDR_POS,((x+xoffset+width-1) << 8) | (x+xoffset));
+        lcd_write_reg(R_RAM_ADDR_SET, ((x+xoffset) << 8) | y);
+        lcd_begin_write_gram();
+        
+        DAR3 = 0xf0000002;
+        dma_addr = (unsigned long)&lcd_framebuffer[y][x];
+        width *= 2;
+
+        for (; height > 0; height--)
+        {
+            SAR3 = dma_addr;
+            BCR3 = width;
+            DCR3 = DMA_AA | DMA_BWC(1)
+                 | DMA_SINC | DMA_SSIZE(DMA_SIZE_LINE)
+                 | DMA_DSIZE(DMA_SIZE_WORD) | DMA_START;
+
+            dma_addr += LCD_WIDTH*2;
+
+            while (!(DSR3 & 1));
+            DSR3 = 1;
+        }
+    }
+}