generic and specific LCD functions

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 376 insertions, 0 deletions

diff --git a/uisimulator/lcd-recorder.c b/uisimulator/lcd-recorder.c
new file mode 100644
index 0000000000..37f4d3b142
--- /dev/null
+++ b/uisimulator/lcd-recorder.c
@@ -0,0 +1,174 @@
+/***************************************************************************
+ *             __________               __   ___.                  
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___  
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /  
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \  
+ *                     \/            \/     \/    \/            \/ 
+ * $Id$
+ *
+ * Copyright (C) 2002 by Daniel Stenberg <daniel@haxx.se>
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/*
+ * Hardware-specific implementations for the Archos Recorder LCD.
+ *
+ * Archos Jukebox Recorder LCD functions.
+ * Solomon SSD1815Z controller and Shing Yih Technology G112064-30 LCD.
+ *
+ */
+
+/* LCD command codes */
+#define	LCD_CNTL_RESET		0xe2	/* Software reset */
+#define	LCD_CNTL_POWER		0x2f	/* Power control */
+#define	LCD_CNTL_CONTRAST	0x81	/* Contrast */
+#define	LCD_CNTL_OUTSCAN	0xc8	/* Output scan direction */
+#define	LCD_CNTL_SEGREMAP	0xa1	/* Segment remap */
+#define	LCD_CNTL_DISPON		0xaf	/* Display on */
+
+#define	LCD_CNTL_PAGE		0xb0	/* Page address */
+#define	LCD_CNTL_HIGHCOL	0x10	/* Upper column address */
+#define	LCD_CNTL_LOWCOL		0x00	/* Lower column address */
+
+
+/*
+ * Initialize LCD
+ */
+void lcd_init (void)
+{
+  /* Initialize PB0-3 as output pins */
+  PBCR2 &= 0xff00; /* MD = 00 */
+  PBIOR |= 0x000f; /* IOR = 1 */
+
+  /* Initialize LCD */
+  lcd_write (TRUE, LCD_CNTL_RESET);
+  lcd_write (TRUE, LCD_CNTL_POWER);
+  lcd_write (TRUE, LCD_CNTL_SEGREMAP);
+  lcd_write (TRUE, LCD_CNTL_OUTSCAN);
+  lcd_write (TRUE, LCD_CNTL_CONTRAST);
+  lcd_write (TRUE, 0x30); /* contrast parameter */
+  lcd_write (TRUE, LCD_CNTL_DISPON);
+
+  lcd_clear();
+  lcd_update();
+}
+
+/*
+ * Update the display.
+ * This must be called after all other LCD funtions that change the display.
+ */
+void lcd_update (void)
+{
+  int row, col;
+
+  /* Copy display bitmap to hardware */
+  for (row = 0; row < DISP_Y/8; row++) {
+    lcd_write (TRUE, LCD_CNTL_PAGE | (row & 0xf));
+    lcd_write (TRUE, LCD_CNTL_HIGHCOL);
+    lcd_write (TRUE, LCD_CNTL_LOWCOL);
+
+    for (col = 0; col < DISP_X; col++)
+      lcd_write (FALSE, display[row][col]);
+  }
+}
+
+/*
+ * Display a string at current position
+ */
+void lcd_string (const char *text, BOOL invert)
+{
+  int ch;
+
+  while ((ch = *text++) != '\0') {
+    if (lcd_y > DISP_Y-CHAR_Y) {
+      /* Scroll (8 pixels) */
+      memcpy (display[0], display[1], DISP_X*(DISP_Y/8-1));
+      lcd_y -= 8;
+    }
+
+    if (ch == '\n')
+      lcd_x = DISP_X;
+    else {
+      lcd_char (ch, invert);
+      lcd_x += CHAR_X;
+    }
+
+    if (lcd_x > DISP_X-CHAR_X) {
+      /* Wrap to next line */
+      lcd_x = 0;
+      lcd_y += CHAR_Y;
+    }
+  }
+}
+
+/*
+ * Display a character.
+ * This writes a 5x8 character within a 6x8 cell.
+ * The cell does not have to be aligned to a display byte.
+ * The top left of the cell is displayed at the current position.
+ * invert is TRUE to display in reverse video.
+ */
+void lcd_char (int ch, BOOL invert)
+{
+  uchar (*dp)[DISP_X] = (void *) &display[lcd_y/8][lcd_x];
+  uint32 shift, mask, col;
+
+  /* Limit to char generation table */
+  if (ch < ASCII_MIN || ch > ASCII_MAX)
+    ch = ASCII_MAX;
+  
+  /* Calculate shift and masks for cell bit position */
+  shift = (lcd_y & 0x7);
+  mask = ~(COL_MASK << shift);
+  if (invert)
+    invert = ~mask;
+
+  /* Write each char column */
+  for (col = 0; col < CHAR_X-1; col++) {
+    uint32 data = (char_gen[ch-ASCII_MIN][col] << shift) ^ invert;
+    dp[0][col] = (dp[0][col] & mask) | data;
+    if (lcd_y < DISP_Y-8)
+      dp[1][col] = (dp[1][col] & (mask >> 8)) | (data >> 8);
+  }
+
+  /* Column after char */
+  dp[0][CHAR_X-1] = (dp[0][CHAR_X-1] & mask) | invert;
+  if (lcd_y < DISP_Y-8)
+    dp[1][CHAR_X-1] = (dp[1][CHAR_X-1] & (mask >> 8)) | (invert >> 8);
+}
+
+/*
+ * Write a byte to LCD controller.
+ * command is TRUE if value is a command byte.
+ */
+static void lcd_write (BOOL command, int value)
+{
+  int i;
+
+  /* Read PBDR, clear LCD bits */
+  int pbdr = PBDR & ~(PBDR_LCD_CS1|PBDR_LCD_DC|PBDR_LCD_SDA|PBDR_LCD_SCK);
+  if (!command)
+    pbdr |= PBDR_LCD_DC; /* set data indicator */
+
+  /* Send each bit, starting with MSB */
+  for (i = 0; i < 8; i++) {
+    if (value & 0x80) {
+      /* Set data, toggle clock */
+      PBDR = pbdr | PBDR_LCD_SDA;
+      PBDR = pbdr | PBDR_LCD_SDA | PBDR_LCD_SCK;
+    }
+    else {
+      /* Clear data, toggle clock */
+      PBDR = pbdr;
+      PBDR = pbdr | PBDR_LCD_SCK;
+    }
+    value <<= 1;
+  }
+}
diff --git a/uisimulator/lcd-x11.c b/uisimulator/lcd-x11.c
new file mode 100644
index 0000000000..efd6c9e8bd
--- /dev/null
+++ b/uisimulator/lcd-x11.c
@@ -0,0 +1,23 @@
+/***************************************************************************
+ *             __________               __   ___.                  
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___  
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /  
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \  
+ *                     \/            \/     \/    \/            \/ 
+ * $Id$
+ *
+ * Copyright (C) 2002 by Daniel Stenberg <daniel@haxx.se>
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/*
+ * Specific implementations for X11, using the generic LCD functions and data.
+ */
+
diff --git a/uisimulator/lcd.c b/uisimulator/lcd.c
new file mode 100644
index 0000000000..0db77e09bb
--- /dev/null
+++ b/uisimulator/lcd.c
@@ -0,0 +1,179 @@
+/***************************************************************************
+ *             __________               __   ___.                  
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___  
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /  
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \  
+ *                     \/            \/     \/    \/            \/ 
+ * $Id$
+ *
+ * Copyright (C) 2002 by Daniel Stenberg <daniel@haxx.se>
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/*
+ * This file is meant for generic LCD defines and global variables etc.
+ */
+
+#define	DISP_X 112		/* Display width in pixels */
+#define	DISP_Y 64		/* Display height in pixels */
+
+#define	CHAR_X   6		/* Character width in pixels */
+#define	CHAR_Y   8		/* Character height in pixels */
+#define	COL_MASK 0xff		/* Character column pixels changed */
+
+/*
+ * ASCII character generation table
+ *
+ * This contains only the printable characters (0x20-0x7f).
+ * Each row in this table is a 5x8 pixel character pattern.
+ * Each byte is a column of pixels, with the top pixel in the LSB.
+ */
+#define	ASCII_MIN			0x20	/* First char in table */
+#define	ASCII_MAX			0x7f	/* Last char in table */
+
+static const uchar char_gen[ASCII_MAX-ASCII_MIN+1][CHAR_X-1] =
+{
+  0x00, 0x00, 0x00, 0x00, 0x00,	/* 0x20-0x2f */
+  0x00, 0x00, 0x4f, 0x00, 0x00,
+  0x00, 0x07, 0x00, 0x07, 0x00,
+  0x14, 0x7f, 0x14, 0x7f, 0x14,
+  0x24, 0x2a, 0x7f, 0x2a, 0x12,
+  0x23, 0x13, 0x08, 0x64, 0x62,
+  0x36, 0x49, 0x55, 0x22, 0x50,
+  0x00, 0x05, 0x03, 0x00, 0x00,
+  0x00, 0x1c, 0x22, 0x41, 0x00,
+  0x00, 0x41, 0x22, 0x1c, 0x00,
+  0x14, 0x08, 0x3e, 0x08, 0x14,
+  0x08, 0x08, 0x3e, 0x08, 0x08,
+  0x00, 0xa0, 0x60, 0x00, 0x00,
+  0x08, 0x08, 0x08, 0x08, 0x08,
+  0x00, 0x60, 0x60, 0x00, 0x00,
+  0x20, 0x10, 0x08, 0x04, 0x02,
+  
+  0x3e, 0x51, 0x49, 0x45, 0x3e,	/* 0x30-0x3f */
+  0x00, 0x42, 0x7f, 0x40, 0x00,
+  0x42, 0x61, 0x51, 0x49, 0x46,
+  0x21, 0x41, 0x45, 0x4b, 0x31,
+  0x18, 0x14, 0x12, 0x7f, 0x10,
+  0x27, 0x45, 0x45, 0x45, 0x39,
+  0x3c, 0x4a, 0x49, 0x49, 0x30,
+  0x01, 0x71, 0x09, 0x05, 0x03,
+  0x36, 0x49, 0x49, 0x49, 0x36,
+  0x06, 0x49, 0x49, 0x29, 0x1e,
+  0x00, 0x6c, 0x6c, 0x00, 0x00,
+  0x00, 0xac, 0x6c, 0x00, 0x00,
+  0x08, 0x14, 0x22, 0x41, 0x00,
+  0x14, 0x14, 0x14, 0x14, 0x14,
+  0x00, 0x41, 0x22, 0x14, 0x08,
+  0x02, 0x01, 0x51, 0x09, 0x06,
+
+  0x32, 0x49, 0x79, 0x41, 0x3e,	/* 0x40-0x4f */
+  0x7e, 0x11, 0x11, 0x11, 0x7e,
+  0x7f, 0x49, 0x49, 0x49, 0x36,
+  0x3e, 0x41, 0x41, 0x41, 0x22,
+  0x7f, 0x41, 0x41, 0x22, 0x1c,
+  0x7f, 0x49, 0x49, 0x49, 0x41,
+  0x7f, 0x09, 0x09, 0x09, 0x01,
+  0x3e, 0x41, 0x49, 0x49, 0x7a,
+  0x7f, 0x08, 0x08, 0x08, 0x7f,
+  0x00, 0x41, 0x7f, 0x41, 0x00,
+  0x20, 0x40, 0x41, 0x3f, 0x01,
+  0x7f, 0x08, 0x14, 0x22, 0x41,
+  0x7f, 0x40, 0x40, 0x40, 0x40,
+  0x7f, 0x02, 0x0c, 0x02, 0x7f,
+  0x7f, 0x04, 0x08, 0x10, 0x7f,
+  0x3e, 0x41, 0x41, 0x41, 0x3e,
+
+  0x7f, 0x09, 0x09, 0x09, 0x06,	/* 0x50-0x5f */
+  0x3e, 0x41, 0x51, 0x21, 0x5e,
+  0x7f, 0x09, 0x19, 0x29, 0x46,
+  0x46, 0x49, 0x49, 0x49, 0x31,
+  0x01, 0x01, 0x7f, 0x01, 0x01,
+  0x3f, 0x40, 0x40, 0x40, 0x3f,
+  0x1f, 0x20, 0x40, 0x20, 0x1f,
+  0x3f, 0x40, 0x38, 0x40, 0x3f,
+  0x63, 0x14, 0x08, 0x14, 0x63,
+  0x07, 0x08, 0x70, 0x08, 0x07,
+  0x71, 0x51, 0x49, 0x45, 0x43,
+  0x00, 0x7f, 0x41, 0x41, 0x00,
+  0x02, 0x04, 0x08, 0x10, 0x20,
+  0x00, 0x41, 0x41, 0x7f, 0x00,
+  0x04, 0x02, 0x01, 0x02, 0x04,
+  0x40, 0x40, 0x40, 0x40, 0x40,
+
+  0x00, 0x01, 0x02, 0x04, 0x00,	/* 0x60-0x6f */
+  0x20, 0x54, 0x54, 0x54, 0x78,
+  0x7f, 0x48, 0x44, 0x44, 0x38,
+  0x38, 0x44, 0x44, 0x44, 0x20,
+  0x38, 0x44, 0x44, 0x48, 0x7f,
+  0x38, 0x54, 0x54, 0x54, 0x18,
+  0x08, 0x7e, 0x09, 0x01, 0x02,
+  0x18, 0xa4, 0xa4, 0xa4, 0x7c,
+  0x7f, 0x08, 0x04, 0x04, 0x78,
+  0x00, 0x44, 0x7d, 0x40, 0x00,
+  0x40, 0x80, 0x84, 0x7d, 0x00,
+  0x7f, 0x10, 0x28, 0x44, 0x00,
+  0x00, 0x41, 0x7f, 0x40, 0x00,
+  0x7c, 0x04, 0x18, 0x04, 0x78,
+  0x7c, 0x08, 0x04, 0x04, 0x78,
+  0x38, 0x44, 0x44, 0x44, 0x38,
+
+  0xfc, 0x24, 0x24, 0x24, 0x18,	/* 0x70-0x7f */
+  0x18, 0x24, 0x24, 0x24, 0xfc,
+  0x7c, 0x08, 0x04, 0x04, 0x08,
+  0x48, 0x54, 0x54, 0x54, 0x20,
+  0x04, 0x3f, 0x44, 0x40, 0x20,
+  0x3c, 0x40, 0x40, 0x20, 0x7c,
+  0x1c, 0x20, 0x40, 0x20, 0x1c,
+  0x3c, 0x40, 0x30, 0x40, 0x3c,
+  0x44, 0x28, 0x10, 0x28, 0x44,
+  0x1c, 0xa0, 0xa0, 0xa0, 0x7c,
+  0x44, 0x64, 0x54, 0x4c, 0x44,
+  0x00, 0x08, 0x36, 0x41, 0x00,
+  0x00, 0x00, 0x7f, 0x00, 0x00,
+  0x00, 0x41, 0x36, 0x08, 0x00,
+  0x04, 0x02, 0x04, 0x08, 0x04,
+  0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
+};
+
+/*
+ * Memory copy of display bitmap
+ *
+ * This has the same format as the Recorder hardware:
+ * Bits within a byte are arranged veritcally, LSB at top.
+ * Byte 0 is top left, byte 1 is 2nd left, byte DISP_X starts 2nd row.
+ */
+static uchar display[DISP_Y/8][DISP_X];
+
+static uint16 lcd_y;	/* Current pixel row */
+static uint16 lcd_x;	/* Current pixel column */
+
+/*
+ * Set current x,y position
+ */
+void lcd_position (int x, int y)
+{
+  if (x >= 0 && x < DISP_X && y >= 0 && y < DISP_Y)
+    {
+      lcd_x = x;
+      lcd_y = y;
+    }
+}
+
+/*
+ * Clear the display
+ */
+void lcd_clear (void)
+{
+  lcd_x = 0;
+  lcd_y = 0;
+  memset (display, 0, sizeof display);
+}
+