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authorTom2012-01-11 17:00:30 +0100
committerTom2012-01-11 17:00:30 +0100
commit9fcc469afa01fc9ea42e4cbb96c5b195c5bcd371 (patch)
tree89d4015f6a34119069665d74a67d871fcd124509 /Src/osmolib/src/target/firmware/display/ssd1963.c
parentrefresh (diff)
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all reupped
Diffstat (limited to 'Src/osmolib/src/target/firmware/display/ssd1963.c')
-rw-r--r--Src/osmolib/src/target/firmware/display/ssd1963.c210
1 files changed, 210 insertions, 0 deletions
diff --git a/Src/osmolib/src/target/firmware/display/ssd1963.c b/Src/osmolib/src/target/firmware/display/ssd1963.c
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+++ b/Src/osmolib/src/target/firmware/display/ssd1963.c
@@ -0,0 +1,210 @@
+/* Solomon SSD1963 LCD Driver (probably not exactly the SSD1963)
+ * as used in the Sony Ericsson J100i */
+
+/* (C) 2010-11 by Steve Markgraf <steve@steve-m.de>
+ * (C) 2010 by Harald Welte <laforge@gnumonks.org>
+ *
+ * All Rights Reserved
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <debug.h>
+#include <delay.h>
+#include <uwire.h>
+#include <display.h>
+#include <calypso/clock.h>
+
+#define LCD_COLUMNS 96
+#define LCD_ROWS 64
+#define LCD_TOP_FREE_ROWS 3
+#define LCD_LEFT_FREE_COLS 0
+#define PIXEL_BYTES 3
+#define SSD1963_UWIRE_BITLEN 9
+#define SSD1963_DEV_ID 0
+#define FONT_HEIGHT 8
+#define FONT_WIDTH 8
+
+#define BLACK 0x0000
+#define WHITE 0x0fff
+
+static void ssd1963_cmd_write(const uint8_t cmd)
+{
+ uint16_t cmd_out = cmd;
+ uwire_xfer(SSD1963_DEV_ID, SSD1963_UWIRE_BITLEN, &cmd_out, NULL);
+}
+
+static void ssd1963_data_write(const uint8_t data)
+{
+ uint16_t data_out = ((0x01 << 8) + data);
+ uwire_xfer(SSD1963_DEV_ID, SSD1963_UWIRE_BITLEN, &data_out, NULL);
+}
+
+static void ssd1963_clrscr(void)
+{
+ uint16_t i;
+
+ /* Select the whole display area for clearing */
+ ssd1963_cmd_write(0x2b);
+ ssd1963_data_write(0x00);
+ ssd1963_data_write(LCD_ROWS-1);
+
+ ssd1963_cmd_write(0x2a);
+ ssd1963_data_write(0x00);
+ ssd1963_data_write(LCD_COLUMNS-1);
+
+ ssd1963_cmd_write(0x2c);
+
+ /* Fill the display with white */
+ for(i=0; i < (LCD_ROWS * (LCD_COLUMNS/2) * PIXEL_BYTES); i++){
+ ssd1963_data_write(0xff);
+ }
+}
+
+static void ssd1963_init(void)
+{
+ unsigned int i;
+
+ calypso_reset_set(RESET_EXT, 0);
+ uwire_init();
+ delay_ms(3);
+
+ /* Begin SSD1963 initialization sequence */
+ ssd1963_cmd_write(0xb6); /* Set vertical period */
+ ssd1963_data_write(0x4b);
+ ssd1963_data_write(0xf1);
+ ssd1963_data_write(0x40);
+ ssd1963_data_write(0x40);
+ ssd1963_data_write(0x00);
+ ssd1963_data_write(0x8c);
+ ssd1963_data_write(0x00);
+
+ ssd1963_cmd_write(0x3a); /* Set pixel format */
+ ssd1963_data_write(0x03); /* 0x03: 12 bit, 0x05: 16 Bit / pixel */
+ ssd1963_cmd_write(0x11);
+
+ /* Contrast/Electronic Volume Control */
+ ssd1963_cmd_write(0xba);
+ ssd1963_data_write(0x5b);
+ ssd1963_data_write(0x84);
+
+ ssd1963_cmd_write(0x36);
+ ssd1963_data_write(0x00);
+
+ ssd1963_cmd_write(0x13); /* Enter normal mode */
+ ssd1963_clrscr();
+
+ ssd1963_cmd_write(0x29); /* Display ON */
+}
+
+extern const unsigned char fontdata_r8x8_horiz[];
+
+/*
+ * Pixel format for 8-bit mode, 12-bit color, 2 Pixel per 3 byte
+ * D7, D6, D5, D4, D3, D2, D1, D0: RRRRGGGG (8 bits) 1st write
+ * D7, D6, D5, D4, D3, D2, D1, D0: BBBBRRRR (8 bits) 2nd write
+ * D7, D6, D5, D4, D3, D2, D1, D0: GGGGBBBB (8 bits) 3rd write
+*/
+
+static void ssd1963_goto_xy(int xpos, int ypos)
+{
+ ssd1963_cmd_write(0x2b);
+ ssd1963_data_write(xpos);
+ ssd1963_data_write(xpos + FONT_HEIGHT-1);
+
+ ssd1963_cmd_write(0x2a);
+ ssd1963_data_write(ypos);
+ ssd1963_data_write(ypos + FONT_WIDTH-1);
+}
+
+static int ssd1963_putc_col(unsigned char c, int fColor, int bColor)
+{
+ int i, j;
+ uint8_t cols = FONT_WIDTH;
+ uint8_t rows = FONT_HEIGHT;
+ uint8_t row_slice;
+ uint8_t rowmask;
+ uint16_t pixel0; /* left pixel */
+ uint16_t pixel1; /* right pixel */
+
+ ssd1963_cmd_write(0x2c);
+
+ for (i = 0; i < rows; i++) {
+ row_slice = fontdata_r8x8_horiz[(FONT_WIDTH * c)+i];
+ rowmask = 0x80;
+ for (j = 0; j < cols; j += 2) {
+ if (!(row_slice & rowmask))
+ pixel0 = bColor;
+ else
+ pixel0 = fColor;
+ rowmask = rowmask >> 1;
+ if (!(row_slice & rowmask))
+ pixel1 = bColor;
+ else
+ pixel1 = fColor;
+ rowmask = rowmask >> 1;
+ /* Write the RGB-RGB pixel data */
+ ssd1963_data_write((pixel0 >> 4) & 0xff);
+ ssd1963_data_write(((pixel0 & 0x00f) << 4) | ((pixel1 >> 8) & 0x00f));
+ ssd1963_data_write(pixel1 & 0xff);
+ }
+ }
+ ssd1963_cmd_write(0x00);
+
+ return c;
+}
+
+static int ssd1963_puts_col(const char *str, int txtline, int fColor, int bColor)
+{
+ int i;
+ for (i = 0; *str != 0x00; i += FONT_WIDTH) {
+ ssd1963_goto_xy(((txtline*FONT_HEIGHT)+LCD_TOP_FREE_ROWS),
+ (i + LCD_LEFT_FREE_COLS));
+ ssd1963_putc_col(*str++, fColor, bColor);
+ }
+
+ return 0;
+}
+
+/* interface to display driver core */
+
+static void ssd1963_set_attr(unsigned long attr)
+{
+ /* FIXME */
+}
+
+static int ssd1963_putc(unsigned int c)
+{
+ return ssd1963_putc_col(c, BLACK, WHITE);
+}
+
+static int ssd1963_puts(const char *str)
+{
+ return ssd1963_puts_col(str, 0, BLACK, WHITE);
+}
+
+const struct display_driver ssd1963_display = {
+ .name = "ssd1963",
+ .init = &ssd1963_init,
+ .set_attr = &ssd1963_set_attr,
+ .unset_attr = &ssd1963_set_attr,
+ .clrscr = &ssd1963_clrscr,
+ .goto_xy = &ssd1963_goto_xy,
+ .putc = &ssd1963_putc,
+ .puts = &ssd1963_puts,
+};