[bsp] Add display,sd,touch,hw_i2c driver

1 files changed, 233 insertions, 0 deletions

diff --git a/bsp/ls1cdev/drivers/display_controller.c b/bsp/ls1cdev/drivers/display_controller.c
new file mode 100644
index 0000000000..84bf99cd5c
--- /dev/null
+++ b/bsp/ls1cdev/drivers/display_controller.c
@@ -0,0 +1,233 @@
+/*
+ * File      :display_controller.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ *
+ *  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.
+ *
+ * Change Logs:
+ * Date           Author       	Notes
+ * 2011-08-09     lgnq         first version for LS1B DC
+ * 2015-07-06    chinesebear   modified for loongson 1c
+ * 2018-01-06    sundm75       modified for smartloong 
+ */
+
+#include <rtthread.h>
+#include "display_controller.h"
+#include "../../libraries/ls1c_pwm.h"
+#include "../../libraries/ls1c_public.h"
+#include "../../libraries/ls1c_gpio.h"
+
+struct vga_struct vga_mode[] =
+{
+	{/*"480x272_60.00"*/    111000,   480,    482,    523,    525,    272,    274,    284,    286,    },
+	{/*"640x480_70.00"*/    28560,  640,    664,    728,    816,    480,    481,    484,    500,    },
+	{/*"640x640_60.00"*/	33100,	640,	672,	736,	832,	640,	641,	644,	663,	},
+	{/*"640x768_60.00"*/	39690,	640,	672,	736,	832,	768,	769,	772,	795,	},
+	{/*"640x800_60.00"*/	42130,	640,	680,	744,	848,	800,	801,	804,	828,	},
+	{/*"800x480_70.00"*/    35840,  800,    832,    912,    1024,   480,    481,    484,    500,    },
+	{/*"800x600_60.00"*/	38220,	800,	832,	912,	1024,	600,	601,	604,	622,	},
+	{/*"800x640_60.00"*/	40730,	800,	832,	912,	1024,	640,	641,	644,	663,	},
+	{/*"832x600_60.00"*/	40010,	832,	864,	952,	1072,	600,	601,	604,	622,	},
+	{/*"832x608_60.00"*/	40520,	832,	864,	952,	1072,	608,	609,	612,	630,	},
+	{/*"1024x480_60.00"*/	38170,	1024,	1048,	1152,	1280,	480,	481,	484,	497,	},
+	{/*"1024x600_60.00"*/	48960,	1024,	1064,	1168,	1312,	600,	601,	604,	622,	},
+	{/*"1024x640_60.00"*/	52830,	1024,	1072,	1176,	1328,	640,	641,	644,	663,	},
+	{/*"1024x768_60.00"*/	64110,	1024,	1080,	1184,	1344,	768,	769,	772,	795,	},
+	{/*"1152x764_60.00"*/   71380,  1152,   1208,   1328,   1504,   764,    765,    768,    791,    },
+	{/*"1280x800_60.00"*/   83460,  1280,   1344,   1480,   1680,   800,    801,    804,    828,    },
+	{/*"1280x1024_55.00"*/  98600,  1280,   1352,   1488,   1696,   1024,   1025,   1028,   1057,   },
+	{/*"1440x800_60.00"*/   93800,  1440,   1512,   1664,   1888,   800,    801,    804,    828,    },
+	{/*"1440x900_67.00"*/   120280, 1440,   1528,   1680,   1920,   900,    901,    904,    935,    },
+};
+
+ALIGN(16)
+volatile rt_uint16_t _rt_framebuffer[FB_YSIZE][FB_XSIZE];
+static struct rt_device_graphic_info _dc_info;
+
+static void pwminit(void)
+{
+    pwm_info_t pwm_info;
+    pwm_info.gpio = LS1C_PWM0_GPIO06;           // pwm引脚位gpio06
+    pwm_info.mode = PWM_MODE_NORMAL;         // 正常模式--连续输出pwm波形
+    pwm_info.duty = 0.85;                                   // pwm占空比 85%
+    pwm_info.period_ns = 5*1000*1000;              // pwm周期5ms
+
+	/*pwm初始化，初始化后立即产生pwm波形*/
+	pwm_init(&pwm_info);
+
+	/* 使能pwm */
+	pwm_enable(&pwm_info);
+}
+int caclulate_freq(rt_uint32_t  XIN, rt_uint32_t PCLK)
+{
+	rt_uint32_t divider_int;
+	rt_uint32_t needed_pixclk;
+	rt_uint32_t  pll_clk, pix_div;
+	rt_uint32_t  regval;
+
+
+	pll_clk = PLL_FREQ; // 读CPU的 PLL及SDRAM 分频系数
+	pll_clk =( pll_clk>>8 )& 0xff;
+	pll_clk = XIN *  pll_clk / 4 ;
+	pix_div = PLL_DIV_PARAM;//读CPU的 CPU/CAMERA/DC 分频系数
+	pix_div = (pix_div>>24)&0xff;
+	rt_kprintf("old pll_clk=%d, pix_div=%d\n", pll_clk, pix_div);
+
+	divider_int = pll_clk/(1000000) *PCLK/1000; 
+	if(divider_int%1000>=500)
+		divider_int = divider_int/1000+1;
+	else
+		divider_int = divider_int/1000;
+	rt_kprintf("divider_int = %d\n", divider_int);
+	
+	/* check whether divisor is too small. */
+	if (divider_int < 1) {
+		rt_kprintf("Warning: clock source is too slow.Try smaller resolution\n");
+		divider_int = 1;
+	}
+	else if(divider_int > 100) {
+		rt_kprintf("Warning: clock source is too fast.Try smaller resolution\n");
+		divider_int = 100;
+	}
+	/* 配置分频寄存器 */
+	{
+		rt_uint32_t regval = 0;
+		regval = PLL_DIV_PARAM;
+		/*首先需要把分频使能位清零 */
+		regval &= ~0x80000030;	//PIX_DIV_VALID  PIX_SEL  置0
+		regval &= ~(0x3f<<24);	//PIX_DIV 清零
+		regval |= divider_int << 24;
+		PLL_DIV_PARAM = regval; 
+		regval |= 0x80000030;	//PIX_DIV_VALID  PIX_SEL  置1
+		PLL_DIV_PARAM = regval; 
+	}
+	rt_kprintf("new PLL_FREQ=0x%x, PLL_DIV_PARAM=0x%x\n", PLL_FREQ, PLL_DIV_PARAM);
+	rt_thread_delay(10);
+	return 0;
+}
+
+static rt_err_t rt_dc_init(rt_device_t dev)
+{
+	int i, out, mode=-1;
+	int val;
+	
+	rt_kprintf("PWM initied\n");
+	/* Set the back light PWM. */
+	pwminit();
+	
+	for (i=0; i<sizeof(vga_mode)/sizeof(struct vga_struct); i++)
+	{
+		if (vga_mode[i].hr == FB_XSIZE && vga_mode[i].vr == FB_YSIZE)
+		{
+			mode=i;
+			/* 计算时钟 配置频率*/
+			caclulate_freq(OSC, vga_mode[i].pclk);
+			break;
+		}
+	}
+
+	if (mode<0)
+	{
+		rt_kprintf("\n\n\nunsupported framebuffer resolution\n\n\n");
+		return;
+	}
+
+	DC_FB_CONFIG = 0x0;
+	DC_FB_CONFIG = 0x3; //	// framebuffer configuration RGB565
+ 	DC_FB_BUFFER_ADDR0 = (rt_uint32_t)_rt_framebuffer - 0x80000000;
+	DC_FB_BUFFER_ADDR1 = (rt_uint32_t)_rt_framebuffer - 0x80000000;
+	DC_DITHER_CONFIG = 0x0;  //颜色抖动配置寄存器
+	DC_DITHER_TABLE_LOW = 0x0; //颜色抖动查找表低位寄存器 
+	DC_DITHER_TABLE_HIGH = 0x0; //颜色抖动查找表高位寄存器
+	DC_PANEL_CONFIG = 0x80001311; //液晶面板配置寄存器
+	DC_PANEL_TIMING = 0x0;
+
+	DC_HDISPLAY = (vga_mode[mode].hfl<<16) | vga_mode[mode].hr;
+	DC_HSYNC = 0x40000000 | (vga_mode[mode].hse<<16) | vga_mode[mode].hss;
+	DC_VDISPLAY = (vga_mode[mode].vfl<<16) | vga_mode[mode].vr;
+	DC_VSYNC = 0x40000000 | (vga_mode[mode].vse<<16) | vga_mode[mode].vss;
+
+#if defined(CONFIG_VIDEO_32BPP)
+	DC_FB_CONFIG = 0x00100105;
+	DC_FB_BUFFER_STRIDE = FB_XSIZE*4;
+#elif defined(CONFIG_VIDEO_24BPP)
+	DC_FB_CONFIG = 0x00100104;
+	DC_FB_BUFFER_STRIDE = (FB_XSIZE*4+255)&(~255);
+#elif defined(CONFIG_VIDEO_16BPP)// 使用这个选项
+	DC_FB_CONFIG = 0x00100103;
+	DC_FB_BUFFER_STRIDE = (FB_XSIZE*2+255)&(~255);
+#elif defined(CONFIG_VIDEO_15BPP)
+	DC_FB_CONFIG = 0x00100102;
+	DC_FB_BUFFER_STRIDE =  (FB_XSIZE*2+255)&(~255);
+#elif defined(CONFIG_VIDEO_12BPP)
+	DC_FB_CONFIG = 0x00100101;
+	DC_FB_BUFFER_STRIDE =  (FB_XSIZE*2+255)&(~255);
+#else  
+	DC_FB_CONFIG = 0x00100104;
+	DC_FB_BUFFER_STRIDE = (FB_XSIZE*4+255)&(~255);
+#endif 
+	return RT_EOK;
+}
+
+static rt_err_t rt_dc_control(rt_device_t dev, int cmd, void *args)
+{
+	switch (cmd)
+	{
+	case RTGRAPHIC_CTRL_RECT_UPDATE:
+		break;
+	case RTGRAPHIC_CTRL_POWERON:
+		break;
+	case RTGRAPHIC_CTRL_POWEROFF:
+		break;
+	case RTGRAPHIC_CTRL_GET_INFO:		
+		rt_memcpy(args, &_dc_info, sizeof(_dc_info));
+		break;
+	case RTGRAPHIC_CTRL_SET_MODE:
+		break;
+	}
+
+	return RT_EOK;
+}
+
+void rt_hw_dc_init(void)
+{
+	rt_device_t dc = rt_malloc(sizeof(struct rt_device));
+	if (dc == RT_NULL) 
+	{
+		rt_kprintf("dc == RT_NULL\n");
+		return; /* no memory yet */
+	}
+
+	_dc_info.bits_per_pixel = 16;
+	_dc_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565P;
+	_dc_info.framebuffer = (rt_uint8_t*)HW_FB_ADDR;
+	_dc_info.width = FB_XSIZE;
+	_dc_info.height = FB_YSIZE;
+
+	/* init device structure */
+	dc->type = RT_Device_Class_Graphic;
+	dc->init = rt_dc_init;
+	dc->open = RT_NULL;
+	dc->close = RT_NULL;
+	dc->control = rt_dc_control;
+	dc->user_data = (void*)&_dc_info;
+	
+	/* register Display Controller device to RT-Thread */
+	rt_device_register(dc, "dc", RT_DEVICE_FLAG_RDWR);
+	
+	rt_device_init(dc);
+}
+