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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/board/mcc200/lcd.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/board/mcc200/lcd.c')
-rw-r--r--qemu/roms/u-boot/board/mcc200/lcd.c200
1 files changed, 200 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/mcc200/lcd.c b/qemu/roms/u-boot/board/mcc200/lcd.c
new file mode 100644
index 000000000..c911445d9
--- /dev/null
+++ b/qemu/roms/u-boot/board/mcc200/lcd.c
@@ -0,0 +1,200 @@
+/*
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <lcd.h>
+#include <mpc5xxx.h>
+#include <malloc.h>
+
+#ifdef CONFIG_LCD
+
+#undef SWAPPED_LCD /* For the previous h/w version */
+/*
+ * The name of the device used for communication
+ * with the PSoC.
+ */
+#define PSOC_PSC MPC5XXX_PSC2
+#define PSOC_BAUD 230400UL
+
+#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 */
+
+#include <video_font.h>
+#define FONT_WIDTH VIDEO_FONT_WIDTH
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * LCD information
+ */
+vidinfo_t panel_info = {
+ LCD_WIDTH, LCD_HEIGHT, LCD_BPP
+};
+
+
+/*
+ * The device we use to communicate with PSoC
+ */
+int serial_inited = 0;
+
+/*
+ * 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 *)gd->fb_base)[i]);
+ }
+#else
+ {
+ int x, y, pwidth;
+ char *p = (char *)gd->fb_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);
+ }
+
+ return;
+}
+#ifdef CONFIG_PROGRESSBAR
+
+void show_progress (int size, int tot)
+{
+ int cnt;
+ int i;
+ static int rc = 0;
+
+ rc += size;
+
+ cnt = ((LCD_WIDTH/FONT_WIDTH) * rc) / tot;
+
+ rc -= (cnt * tot) / (LCD_WIDTH/FONT_WIDTH);
+
+ for (i = 0; i < cnt; i++) {
+ lcd_putc(0xdc);
+ }
+
+ if (cnt) {
+ lcd_enable(); /* MCC200-specific - send the framebuffer to PSoC */
+ }
+}
+
+#endif
+
+int bmp_display(ulong addr, int x, int y)
+{
+ int ret;
+ bmp_image_t *bmp = (bmp_image_t *)addr;
+
+ if (!bmp) {
+ printf("There is no valid bmp file at the given address\n");
+ return 1;
+ }
+
+ ret = lcd_display_bitmap((ulong)bmp, x, y);
+
+ if ((unsigned long)bmp != addr)
+ free(bmp);
+
+ return ret;
+}
+
+#endif /* CONFIG_LCD */