--- /dev/null
+/*
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <lcd.h>
+#include <mpc5xxx.h>
+
+#ifdef CONFIG_LCD
+
+#define SWAPPED_LCD
+/*
+ * The name of the device used for communication
+ * with the PSoC.
+ */
+#define PSOC_PSC MPC5XXX_PSC2
+#define PSOC_BAUD 500000UL
+
+#define RTS_ASSERT 1
+#define RTS_NEGATE 0
+#define CTS_ASSERT 1
+#define CTS_NEGATE 0
+
+/*
+ * Dimensions in pixels
+ */
+#define LCD_WIDTH 160
+#define LCD_HEIGHT 100
+
+/*
+ * Dimensions in bytes
+ */
+#define LCD_BUF_SIZE ((LCD_WIDTH*LCD_HEIGHT)>>3)
+
+#if LCD_BPP != LCD_MONOCHROME
+#error "MCC200 support only monochrome displays (1 bpp)!"
+#endif
+
+#define PSOC_RETRIES 10 /* each of PSOC_WAIT_TIME */
+#define PSOC_WAIT_TIME 10 /* usec */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * LCD information
+ */
+vidinfo_t panel_info = {
+ LCD_WIDTH, LCD_HEIGHT, LCD_BPP
+};
+
+int lcd_line_length;
+
+int lcd_color_fg;
+int lcd_color_bg;
+
+/*
+ * Frame buffer memory information
+ */
+void *lcd_base; /* Start of framebuffer memory */
+void *lcd_console_address; /* Start of console buffer */
+
+short console_col = 0;
+short console_row = 0;
+
+/*
+ * The device we use to communicate with PSoC
+ */
+int serial_inited = 0;
+
+/*
+ * Exported functions
+ */
+void lcd_initcolregs (void);
+void lcd_ctrl_init (void *lcdbase);
+void lcd_enable (void);
+
+/*
+ * Imported functions to support the PSoC protocol
+ */
+extern int serial_init_dev (unsigned long dev_base);
+extern void serial_setrts_dev (unsigned long dev_base, int s);
+extern int serial_getcts_dev (unsigned long dev_base);
+extern void serial_putc_raw_dev(unsigned long dev_base, const char c);
+
+/*
+ * Just stubs for our driver, needed for compiling compabilty with
+ * the common LCD driver code.
+ */
+void lcd_initcolregs (void)
+{
+}
+
+void lcd_ctrl_init (void *lcdbase)
+{
+}
+
+/*
+ * Function sends the contents of the frame-buffer to the LCD
+ */
+void lcd_enable (void)
+{
+ int i, retries, fb_size;
+
+ if (!serial_inited) {
+ unsigned long baud;
+
+ baud = gd->baudrate;
+ gd->baudrate = PSOC_BAUD;
+ serial_init_dev(PSOC_PSC);
+ gd->baudrate = baud;
+ serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
+ serial_inited = 1;
+ }
+
+ /*
+ * Implement PSoC communication protocol:
+ * 1. Assert RTS, wait CTS assertion
+ * 2. Transmit data
+ * 3. Negate RTS, wait CTS negation
+ */
+
+ /* 1 */
+ serial_setrts_dev (PSOC_PSC, RTS_ASSERT);
+ for (retries = PSOC_RETRIES; retries; retries--) {
+ if (serial_getcts_dev(PSOC_PSC) == CTS_ASSERT)
+ break;
+ udelay (PSOC_WAIT_TIME);
+ }
+ if (!retries) {
+ printf ("%s Error: PSoC doesn't respond on "
+ "RTS ASSERT\n", __FUNCTION__);
+ }
+
+ /* 2 */
+ fb_size = panel_info.vl_row * (panel_info.vl_col >> 3);
+
+#if !defined(SWAPPED_LCD)
+ for (i=0; i<fb_size; i++) {
+ serial_putc_raw_dev (PSOC_PSC, ((char *)lcd_base)[i]);
+ }
+#else
+ {
+ int x, y, pwidth;
+ char *p = (char *)lcd_base;
+
+ pwidth = ((panel_info.vl_col+7) >> 3);
+ for (y=0; y<panel_info.vl_row; y++) {
+ i = y * pwidth;
+ for (x=0; x<pwidth; x+=5) {
+ serial_putc_raw_dev (PSOC_PSC, (p[i+x+2]<<4 & 0xF0) | (p[i+x+3]>>4 & 0x0F));
+ serial_putc_raw_dev (PSOC_PSC, (p[i+x+3]<<4 & 0xF0) | (p[i+x+4]>>4 & 0x0F));
+ serial_putc_raw_dev (PSOC_PSC, (p[i+x+4]<<4 & 0xF0) | (p[i+x]>>4 & 0x0F));
+ serial_putc_raw_dev (PSOC_PSC, (p[i+x]<<4 & 0xF0) | (p[i+x+1]>>4 & 0x0F));
+ serial_putc_raw_dev (PSOC_PSC, (p[i+x+1]<<4 & 0xF0) | (p[i+x+2]>>4 & 0x0F));
+ }
+ }
+ }
+#endif
+
+ /* 3 */
+ serial_setrts_dev (PSOC_PSC, RTS_NEGATE);
+ for (retries = PSOC_RETRIES; retries; retries--) {
+ if (serial_getcts_dev(PSOC_PSC) == CTS_NEGATE)
+ break;
+ udelay (PSOC_WAIT_TIME);
+ }
+ if (!retries) {
+ printf ("%s Error: PSoC doesn't respond on "
+ "RTS NEGATE\n", __FUNCTION__);
+ }
+
+ return;
+}
+#endif /* CONFIG_LCD */
uchar *bmap;
ushort padded_line;
unsigned long width, height;
+ unsigned long pwidth = panel_info.vl_col;
unsigned colors,bpix;
unsigned long compression;
#if defined(CONFIG_PXA250)
cmap = (ushort *)fbi->palette;
#elif defined(CONFIG_MPC823)
cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
+#elif defined(CONFIG_MCC200)
+ /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
#else
# error "Don't know location of color map"
#endif
}
}
+ /*
+ * BMP format for Monochrome assumes that the state of a
+ * pixel is described on a per Bit basis, not per Byte.
+ * So, in case of Monochrome BMP we should align widths
+ * on a byte boundary and convert them from Bit to Byte
+ * units.
+ * Probably, PXA250 and MPC823 process 1bpp BMP images in
+ * their own ways, so make the converting to be MCC200
+ * specific.
+ */
+#if defined(CONFIG_MCC200)
+ if (bpix==1)
+ {
+ width = ((width + 7) & ~7) >> 3;
+ x = ((x + 7) & ~7) >> 3;
+ pwidth= ((pwidth + 7) & ~7) >> 3;
+ }
+#endif
+
padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
- if ((x + width)>panel_info.vl_col)
- width = panel_info.vl_col - x;
+ if ((x + width)>pwidth)
+ width = pwidth - x;
if ((y + height)>panel_info.vl_row)
height = panel_info.vl_row - y;
for (j = 0; j < width ; j++)
#if defined(CONFIG_PXA250)
*(fb++)=*(bmap++);
-#elif defined(CONFIG_MPC823)
+#elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
*(fb++)=255-*(bmap++);
#endif
bmap += (width - padded_line);
psc->psc_buffer_8 = c;
}
+#if defined(CONFIG_SERIAL_MULTI)
+void serial_putc_raw_dev(unsigned long dev_base, const char c)
+#else
+void serial_putc_raw(const char c)
+#endif
+{
+#if defined(CONFIG_SERIAL_MULTI)
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base;
+#else
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+#endif
+ /* Wait for last character to go. */
+ while (!(psc->psc_status & PSC_SR_TXEMP))
+ ;
+
+ psc->psc_buffer_8 = c;
+}
+
+
#if defined(CONFIG_SERIAL_MULTI)
void serial_puts_dev (unsigned long dev_base, const char *s)
#else
psc->ctlr = div & 0xff;
}
+#if defined(CONFIG_SERIAL_MULTI)
+void serial_setrts_dev (unsigned long dev_base, int s)
+#else
+void serial_setrts(int s)
+#endif
+{
+#if defined(CONFIG_SERIAL_MULTI)
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base;
+#else
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+#endif
+
+ if (s) {
+ /* Assert RTS (become LOW) */
+ psc->op1 = 0x1;
+ }
+ else {
+ /* Negate RTS (become HIGH) */
+ psc->op0 = 0x1;
+ }
+}
+
+#if defined(CONFIG_SERIAL_MULTI)
+int serial_getcts_dev (unsigned long dev_base)
+#else
+int serial_getcts(void)
+#endif
+{
+#if defined(CONFIG_SERIAL_MULTI)
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base;
+#else
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+#endif
+
+ return (psc->ip & 0x1) ? 0 : 1;
+}
+
#if defined(CONFIG_SERIAL_MULTI)
int serial0_init(void)
{
projects / u-boot.git / commitdiff