Initial file dump from open source releaseHEADmaster

1 files changed, 114 insertions, 0 deletions

diff --git a/drivers/autotst/lcdc.c b/drivers/autotst/lcdc.c
new file mode 100644
index 00000000..2c61701e
--- /dev/null
+++ b/drivers/autotst/lcdc.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2012 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#include <linux/fb.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+
+#include "lcdc_reg.h"
+
+
+//#define  LCDC_DEBUG
+#ifdef LCDC_DEBUG
+#define LCDC_PRINT printk
+#else
+#define LCDC_PRINT(...)
+#endif
+
+
+int32_t lcm_send_cmd (uint32_t cmd)
+{
+	/* wait for that the ahb enter idle state */
+	while(lcdc_read(LCM_CTRL) & BIT(20));
+
+	lcdc_write(cmd, LCM_CMD);
+	return 0;
+}
+
+int32_t lcm_send_cmd_data (uint32_t cmd, uint32_t data)
+{
+	/* wait for that the ahb enter idle state */
+	while(lcdc_read(LCM_CTRL) & BIT(20));
+
+	lcdc_write(cmd, LCM_CMD);
+
+	/* wait for that the ahb enter idle state */
+	while(lcdc_read(LCM_CTRL) & BIT(20));
+
+	lcdc_write(data, LCM_DATA);
+	return 0;
+}
+
+int32_t lcm_send_data (uint32_t data)
+{
+	/* wait for that the ahb enter idle state */
+	 while(lcdc_read(LCM_CTRL) & BIT(20));
+
+	lcdc_write(data, LCM_DATA);
+	return 0;
+}
+
+uint32_t lcm_read_data (void)
+{
+	/* wait for that the ahb enter idle state */
+	while(lcdc_read(LCM_CTRL) & BIT(20));
+	lcdc_write(1 << 24, LCM_DATA);
+	udelay(50);
+	return lcdc_read(LCM_RDDATA);
+}
+
+static struct clk * s_lcdcclk = NULL;
+
+int lcm_init(void)
+{
+	//int i;
+	unsigned int ctrl;
+
+    if( NULL == s_lcdcclk ) {
+        s_lcdcclk = clk_get(NULL, "clk_lcdc");
+    }
+	if( s_lcdcclk == NULL ) {
+		printk(KERN_ERR "can not get clk_lcdc!!!!!\n");
+		return -EFAULT;
+	}
+
+	clk_enable(s_lcdcclk);
+
+    ctrl = lcdc_read(LCM_CTRL);
+	printk("reg[LCM_CTRL] = %x\n", ctrl);
+
+	ctrl &= 0x10000;
+	ctrl |= 0x02828; // bus&pixel are 24bits
+
+    lcdc_write(ctrl, LCM_CTRL);
+
+    //lcdc_write((1 << 8) | (5 << 4) | 5, LCM_TIMING0);
+    //lcdc_write((1 << 8) | (5 << 4) | 5, LCM_TIMING1);
+
+    //for( i = LCM_CTRL; i <= LCM_RSTN;  i += 4 ) {
+    //    printk("reg[%x] = %x\n", i, lcdc_read(i));
+    //}
+
+	return 0;
+}
+
+int lcm_close(void)
+{
+	if( NULL != s_lcdcclk ) {
+		clk_disable(s_lcdcclk);
+	}
+	printk("lcm_close \n");
+	return 0;
+}
+
+