2 * drivers/video/rockchip/chips/rk2928_lcdc.c
4 * Copyright (C) 2012 ROCKCHIP, Inc.
5 *Author:yzq<yzq@rock-chips.com>
6 * yxj<yxj@rock-chips.com>
7 *This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 #include <linux/module.h>
19 #include <linux/kernel.h>
20 #include <linux/errno.h>
21 #include <linux/string.h>
23 #include <linux/slab.h>
24 #include <linux/device.h>
25 #include <linux/delay.h>
26 #include <linux/init.h>
27 #include <linux/interrupt.h>
28 #include <linux/platform_device.h>
29 #include <linux/clk.h>
30 #include <linux/earlysuspend.h>
31 #include <asm/div64.h>
32 #include <asm/uaccess.h>
33 #include <mach/iomux.h>
34 #include <mach/gpio.h>
35 #include "rk2928_lcdc.h"
36 #include "../transmitter/rk2928_lvds.h"
42 static int dbg_thresd = 0;
43 module_param(dbg_thresd, int, S_IRUGO|S_IWUSR);
44 #define DBG(level,x...) do { if(unlikely(dbg_thresd >= level)) printk(KERN_INFO x); } while (0)
48 //rk2928 lcdc iomux,mode:0,gpio,1 lcdc io
49 static int rk2928_lcdc_iomux(rk_screen *screen,int mode)
53 if((screen->type == SCREEN_RGB)&&(mode)) //iomux for RGB screen
57 gpio_free(RK2928_PIN2_PB0 + i);
61 gpio_free(RK2928_PIN2_PC0 + i);
64 if(screen->lcdc_id == 0)
66 rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC0_DCLK);
67 rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC0_HSYNC);
68 rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC0_VSYNC);
69 rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC0_DEN);
70 rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC0_D10);
71 rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC0_D11);
72 rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC0_D12);
73 rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC0_D13);
74 rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC0_D14);
75 rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC0_D15);
76 rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC0_D16);
77 rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC0_D17);
79 else if(screen->lcdc_id == 1)
81 rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC1_DCLK);
82 rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC1_HSYNC);
83 rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC1_VSYNC);
84 rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC1_DEN);
85 rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC1_D10);
86 rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC1_D11);
87 rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC1_D12);
88 rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC1_D13);
89 rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC1_D14);
90 rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC1_D15);
91 rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC1_D16);
92 rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC1_D17);
96 printk(KERN_WARNING "%s>>>no such interface:%d\n",__func__,screen->lcdc_id);
100 else if((screen->type == SCREEN_RGB)&&(!mode))
102 rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_GPIO2B0 );
103 rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME,GPIO2B_GPIO2B1);
104 rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_GPIO2B2);
105 rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_GPIO2B3);
106 rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_GPIO2B4 );
107 rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_GPIO2B5 );
108 rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_GPIO2B6 );
109 rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_GPIO2B7 );
110 rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_GPIO2C0);
111 rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_GPIO2C1);
112 rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_GPIO2C2);
113 rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_GPIO2C3);
116 ret += gpio_request(RK2928_PIN2_PB0 + i, NULL);
117 gpio_direction_output(RK2928_PIN2_PB0 + i, 0);
121 ret += gpio_request(RK2928_PIN2_PC0 + i, NULL);
122 gpio_direction_output(RK2928_PIN2_PC0 + i, 0);
126 printk("%s:some gpio request fail\n",__func__);
131 static int init_rk2928_lcdc(struct rk_lcdc_device_driver *dev_drv)
133 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
134 if(lcdc_dev->id == 0) //lcdc0
136 lcdc_dev->hclk = clk_get(NULL,"hclk_lcdc0");
137 lcdc_dev->aclk = clk_get(NULL,"aclk_lcdc0");
138 lcdc_dev->dclk = clk_get(NULL,"dclk_lcdc0");
139 lcdc_dev->sclk = clk_get(NULL,"sclk_lcdc0");
143 printk(KERN_ERR "invalid lcdc device!\n");
146 if (IS_ERR(lcdc_dev->sclk) || (IS_ERR(lcdc_dev->aclk)) ||(IS_ERR(lcdc_dev->dclk)) || (IS_ERR(lcdc_dev->hclk)))
148 printk(KERN_ERR "failed to get lcdc%d clk source\n",lcdc_dev->id);
151 clk_enable(lcdc_dev->pd);
152 clk_enable(lcdc_dev->hclk); //enable aclk and hclk for register config
153 clk_enable(lcdc_dev->aclk);
154 lcdc_dev->clk_on = 1;
155 LcdSetBit(lcdc_dev,SYS_CFG, m_LCDC_AXICLK_AUTO_ENABLE);//eanble axi-clk auto gating for low power
156 LcdMskReg(lcdc_dev,INT_STATUS,m_FRM_START_INT_CLEAR | m_BUS_ERR_INT_CLEAR | m_LINE_FLAG_INT_EN |
157 m_FRM_START_INT_EN | m_HOR_START_INT_EN,v_FRM_START_INT_CLEAR(1) | v_BUS_ERR_INT_CLEAR(0) |
158 v_LINE_FLAG_INT_EN(0) | v_FRM_START_INT_EN(0) | v_HOR_START_INT_EN(0)); //enable frame start interrupt for sync
159 //LCDC_REG_CFG_DONE(); // write any value to REG_CFG_DONE let config become effective
163 static int rk2928_lcdc_deinit(struct rk2928_lcdc_device *lcdc_dev)
165 spin_lock(&lcdc_dev->reg_lock);
166 if(likely(lcdc_dev->clk_on))
168 lcdc_dev->clk_on = 0;
169 LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
170 LcdMskReg(lcdc_dev, INT_STATUS, m_HOR_START_INT_EN | m_FRM_START_INT_EN |
171 m_LINE_FLAG_INT_EN | m_BUS_ERR_INT_EN,v_HOR_START_INT_EN(0) | v_FRM_START_INT_EN(0) |
172 v_LINE_FLAG_INT_EN(0) | v_BUS_ERR_INT_EN(0)); //disable all lcdc interrupt
173 LcdSetBit(lcdc_dev,SYS_CFG,m_LCDC_STANDBY);
175 spin_unlock(&lcdc_dev->reg_lock);
177 else //clk already disabled
179 spin_unlock(&lcdc_dev->reg_lock);
187 static int rk2928_load_screen(struct rk_lcdc_device_driver *dev_drv, bool initscreen)
190 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
191 rk_screen *screen = dev_drv->cur_screen;
192 rk_screen *screen0 = dev_drv->screen0;
196 u16 right_margin = screen->right_margin;
197 u16 lower_margin = screen->lower_margin;
198 u16 x_res = screen->x_res, y_res = screen->y_res;
199 DBG(1,"left_margin:%d>>hsync_len:%d>>xres:%d>>right_margin:%d>>upper_margin:%d>>vsync_len:%d>>yres:%d>>lower_margin:%d\n",
200 screen->left_margin,screen->hsync_len,screen->x_res,screen->right_margin,screen->upper_margin,screen->vsync_len,screen->y_res,
201 screen->lower_margin);
202 // set the rgb or mcu
203 spin_lock(&lcdc_dev->reg_lock);
204 if(likely(lcdc_dev->clk_on))
206 if(screen->type==SCREEN_MCU)
208 printk(KERN_ERR "MCU Screen is not supported by RK2928\n");
212 switch (screen->face)
216 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
220 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
224 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
228 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
232 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
233 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
236 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
237 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
242 //use default overlay,set vsyn hsync den dclk polarity
243 LcdMskReg(lcdc_dev, DSP_CTRL,m_DISPLAY_FORMAT | m_HSYNC_POLARITY | m_VSYNC_POLARITY |
244 m_DEN_POLARITY |m_DCLK_POLARITY | m_OUTPUT_RB_SWAP | m_OUTPUT_RG_SWAP | m_BLACK_MODE,
245 v_DISPLAY_FORMAT(face) | v_HSYNC_POLARITY(screen->pin_hsync) |
246 v_VSYNC_POLARITY(screen->pin_vsync) | v_DEN_POLARITY(screen->pin_den) |
247 v_DCLK_POLARITY(screen->pin_dclk) | v_OUTPUT_RB_SWAP(screen->swap_rb) |
248 v_OUTPUT_RG_SWAP(screen->swap_rg) |v_BLACK_MODE(0));
250 //set background color to black,set swap according to the screen panel,disable blank mode
251 LcdMskReg(lcdc_dev, BG_COLOR, m_BG_COLOR ,v_BG_COLOR(0x000000));
254 LcdWrReg(lcdc_dev, DSP_HTOTAL_HS_END,v_HSYNC(screen->hsync_len) |
255 v_HORPRD(screen->hsync_len + screen->left_margin + x_res + right_margin));
256 LcdWrReg(lcdc_dev, DSP_HACT_ST_END, v_HAEP(screen->hsync_len + screen->left_margin + x_res) |
257 v_HASP(screen->hsync_len + screen->left_margin));
259 LcdWrReg(lcdc_dev, DSP_VTOTAL_VS_END, v_VSYNC(screen->vsync_len) |
260 v_VERPRD(screen->vsync_len + screen->upper_margin + y_res + lower_margin));
261 LcdWrReg(lcdc_dev, DSP_VACT_ST_END, v_VAEP(screen->vsync_len + screen->upper_margin+y_res)|
262 v_VASP(screen->vsync_len + screen->upper_margin));
264 #if defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
265 if(dev_drv->screen0->lcdc_id == 1)
267 //set register for scaller
268 LcdMskReg(lcdc_dev,SCL_REG0,m_SCL_DSP_ZERO | m_SCL_DEN_INVERT |
269 m_SCL_SYNC_INVERT | m_SCL_DCLK_INVERT | m_SCL_EN,v_SCL_DSP_ZERO(0) |
270 v_SCL_DEN_INVERT(screen0->s_den_inv) | v_SCL_SYNC_INVERT(screen0->s_hv_sync_inv) |
271 v_SCL_DCLK_INVERT(screen0->s_clk_inv) | v_SCL_EN(1));
272 LcdWrReg(lcdc_dev,SCL_REG2,v_HASP(screen0->s_vsync_st) | v_HAEP(screen0->s_hsync_st));
273 LcdWrReg(lcdc_dev,SCL_REG3,v_HASP(screen0->s_hsync_len) |
274 v_HAEP(screen0->s_hsync_len + screen0->s_left_margin +
275 screen0->x_res + screen0->s_right_margin));
276 LcdWrReg(lcdc_dev,SCL_REG4,v_HASP(screen0->s_hsync_len + screen0->s_left_margin) |
277 v_HAEP(screen0->s_hsync_len + screen0->s_left_margin + screen0->x_res));
278 LcdWrReg(lcdc_dev,SCL_REG5,v_VASP(screen0->s_vsync_len) |
279 v_VAEP(screen0->s_vsync_len + screen0->s_upper_margin +
280 screen0->y_res + screen0->s_lower_margin));
281 LcdWrReg(lcdc_dev,SCL_REG6,v_VASP(screen0->s_vsync_len +
282 screen0->s_upper_margin) | v_VAEP(screen0->s_vsync_len +
283 screen0->s_upper_margin + screen0->y_res ));
284 LcdWrReg(lcdc_dev,SCL_REG8,v_VASP(screen0->s_vsync_len + screen0->s_upper_margin) |
285 v_VAEP(screen0->s_vsync_len + screen0->s_upper_margin + screen0->y_res));
286 LcdWrReg(lcdc_dev,SCL_REG7,v_HASP(screen0->s_hsync_len + screen0->s_left_margin) |
287 v_HAEP(screen0->s_hsync_len + screen0->s_left_margin + screen0->x_res ));
288 LcdWrReg(lcdc_dev,SCL_REG1,v_SCL_V_FACTOR(0x1000)|v_SCL_H_FACTOR(0x1000));
291 // let above to take effect
292 //LCDC_REG_CFG_DONE();
294 spin_unlock(&lcdc_dev->reg_lock);
296 #ifdef CONFIG_RK2928_LVDS
297 rk_lvds_register(dev_drv->screen0);
299 if(dev_drv->screen0->type == SCREEN_RGB) //iomux for RGB screen
302 if(dev_drv->screen0->lcdc_id == 0)
304 rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC0_DCLK);
305 rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC0_HSYNC);
306 rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC0_VSYNC);
307 rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC0_DEN);
308 rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC0_D10);
309 rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC0_D11);
310 rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC0_D12);
311 rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC0_D13);
312 rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC0_D14);
313 rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC0_D15);
314 rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC0_D16);
315 rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC0_D17);
317 else if(dev_drv->screen0->lcdc_id == 1)
319 rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC1_DCLK);
320 rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC1_HSYNC);
321 rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC1_VSYNC);
322 rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC1_DEN);
323 rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC1_D10);
324 rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC1_D11);
325 rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC1_D12);
326 rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC1_D13);
327 rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC1_D14);
328 rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC1_D15);
329 rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC1_D16);
330 rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC1_D17);
334 printk(KERN_WARNING "%s>>>no such interface:%d\n",__func__,dev_drv->cur_screen->lcdc_id);
338 //rk30_mux_api_set(GPIO2C4_LCDC0_D18_LCDC1_D18_I2C2_SDA_NAME, GPIO2C_LCDC1_D18);
339 //rk30_mux_api_set(GPIO2C5_LCDC0_D19_LCDC1_D19_I2C2_SCL_NAME, GPIO2C_LCDC1_D19);
340 //rk30_mux_api_set(GPIO2C6_LCDC0_D20_LCDC1_D20_UART2_SIN_NAME, GPIO2C_LCDC1_D20);
341 //rk30_mux_api_set(GPIO2C7_LCDC0_D21_LCDC1_D21_UART2_SOUT_NAME, GPIO2C_LCDC1_D21);
342 //rk30_mux_api_set(GPIO2D0_LCDC0_D22_LCDC1_D22_NAME, GPIO2D_LCDC1_D22);
343 //rk30_mux_api_set(GPIO2D1_LCDC0_D23_LCDC1_D23_NAME, GPIO2D_LCDC1_D23);
344 printk("RGB screen connect to rk2928 lcdc interface%d\n",dev_drv->screen0->lcdc_id);
348 ret = clk_set_rate(lcdc_dev->dclk, screen->pixclock);
351 printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
353 lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
354 clk_enable(lcdc_dev->dclk);
355 #if defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
357 if(dev_drv->screen0->lcdc_id == 1) //if connect to output interface 1,need scale
359 ret = clk_set_rate(lcdc_dev->sclk, screen0->s_pixclock);
362 printk(KERN_ERR ">>>>>> set lcdc%d sclk failed\n",lcdc_dev->id);
364 //lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->sclk));
365 //printk("%s: sclk:%lu>>need:%d",lcdc_dev->driver.name,,screen0->s_pixclock);
366 clk_enable(lcdc_dev->sclk);
369 ft = (u64)(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
370 (screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len)*
371 (dev_drv->pixclock); // one frame time ,(pico seconds)
372 fps = div64_u64(1000000000000llu,ft);
373 screen->ft = 1000/fps;
374 printk("%s: dclk:%lu>>fps:%d ",lcdc_dev->driver.name,clk_get_rate(lcdc_dev->dclk),
382 printk("%s for lcdc%d ok!\n",__func__,lcdc_dev->id);
387 //enable layer,open:1,enable;0 disable
388 static int win0_open(struct rk2928_lcdc_device *lcdc_dev,bool open)
391 spin_lock(&lcdc_dev->reg_lock);
392 if(likely(lcdc_dev->clk_on))
396 if(!lcdc_dev->atv_layer_cnt)
398 LcdClrBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
400 lcdc_dev->atv_layer_cnt++;
404 lcdc_dev->atv_layer_cnt--;
406 lcdc_dev->driver.layer_par[0]->state = open;
408 LcdMskReg(lcdc_dev, SYS_CFG, m_W0_EN, v_W0_EN(open));
409 if(!lcdc_dev->atv_layer_cnt) //if no layer used,disable lcdc
411 LcdSetBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
413 //LCDC_REG_CFG_DONE();
415 spin_unlock(&lcdc_dev->reg_lock);
416 printk(KERN_INFO "lcdc%d win0 %s\n",lcdc_dev->id,open?"open":"closed");
419 static int win1_open(struct rk2928_lcdc_device *lcdc_dev,bool open)
421 spin_lock(&lcdc_dev->reg_lock);
422 if(likely(lcdc_dev->clk_on))
426 if(!lcdc_dev->atv_layer_cnt)
428 printk("lcdc%d wakeup from stanby\n",lcdc_dev->id);
429 LcdClrBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
431 lcdc_dev->atv_layer_cnt++;
435 lcdc_dev->atv_layer_cnt--;
437 lcdc_dev->driver.layer_par[1]->state = open;
439 LcdMskReg(lcdc_dev, SYS_CFG, m_W1_EN, v_W1_EN(open));
440 if(!lcdc_dev->atv_layer_cnt) //if no layer used,disable lcdc
442 printk(KERN_INFO "no layer of lcdc%d is used,go to standby!",lcdc_dev->id);
443 LcdSetBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
445 //LCDC_REG_CFG_DONE();
447 spin_unlock(&lcdc_dev->reg_lock);
448 printk(KERN_INFO "lcdc%d win1 %s\n",lcdc_dev->id,open?"open":"closed");
453 static int rk2928_lcdc_blank(struct rk_lcdc_device_driver*lcdc_drv,int layer_id,int blank_mode)
455 struct rk2928_lcdc_device * lcdc_dev = container_of(lcdc_drv,struct rk2928_lcdc_device ,driver);
457 printk(KERN_INFO "%s>>>>>%d\n",__func__, blank_mode);
459 spin_lock(&lcdc_dev->reg_lock);
460 if(likely(lcdc_dev->clk_on))
464 case FB_BLANK_UNBLANK:
465 LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(0));
467 case FB_BLANK_NORMAL:
468 LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(1));
471 LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(1));
476 spin_unlock(&lcdc_dev->reg_lock);
481 static int win0_display(struct rk2928_lcdc_device *lcdc_dev,struct layer_par *par )
485 y_addr = par->smem_start + par->y_offset;
486 uv_addr = par->cbr_start + par->c_offset;
487 DBG(2,KERN_INFO "lcdc%d>>%s:y_addr:0x%x>>uv_addr:0x%x\n",lcdc_dev->id,__func__,y_addr,uv_addr);
489 spin_lock(&lcdc_dev->reg_lock);
490 if(likely(lcdc_dev->clk_on))
492 LcdWrReg(lcdc_dev, WIN0_YRGB_MST,y_addr);
493 LcdWrReg(lcdc_dev, WIN0_CBR_MST,uv_addr);
496 spin_unlock(&lcdc_dev->reg_lock);
502 static int win1_display(struct rk2928_lcdc_device *lcdc_dev,struct layer_par *par )
506 y_addr = par->smem_start + par->y_offset;
507 uv_addr = par->cbr_start + par->c_offset;
508 DBG(2,KERN_INFO "lcdc%d>>%s>>y_addr:0x%x>>uv_addr:0x%x\n",lcdc_dev->id,__func__,y_addr,uv_addr);
510 spin_lock(&lcdc_dev->reg_lock);
511 if(likely(lcdc_dev->clk_on))
513 LcdWrReg(lcdc_dev, WIN1_RGB_MST, y_addr);
516 spin_unlock(&lcdc_dev->reg_lock);
521 static int win0_set_par(struct rk2928_lcdc_device *lcdc_dev,rk_screen *screen,
522 struct layer_par *par )
524 u32 xact, yact, xvir, yvir, xpos, ypos;
525 u32 ScaleYrgbX = 0x1000;
526 u32 ScaleYrgbY = 0x1000;
527 u32 ScaleCbrX = 0x1000;
528 u32 ScaleCbrY = 0x1000;
531 xact = par->xact; //active (origin) picture window width/height
533 xvir = par->xvir; // virtual resolution
535 xpos = par->xpos+screen->left_margin + screen->hsync_len;
536 ypos = par->ypos+screen->upper_margin + screen->vsync_len;
538 ScaleYrgbX = CalScale(xact, par->xsize); //both RGB and yuv need this two factor
539 ScaleYrgbY = CalScale(yact, par->ysize);
541 DBG(1,"%s for lcdc%d>>format:%d>>>xact:%d>>yact:%d>>xsize:%d>>ysize:%d>>xvir:%d>>yvir:%d>>xpos:%d>>ypos:%d>>\n",
542 __func__,lcdc_dev->id,par->format,xact,yact,par->xsize,par->ysize,xvir,yvir,xpos,ypos);
556 case YUV422:// yuv422
558 ScaleCbrX = CalScale((xact/2), par->xsize);
559 ScaleCbrY = CalScale(yact, par->ysize);
561 case YUV420: // yuv420
563 ScaleCbrX = CalScale(xact/2, par->xsize);
564 ScaleCbrY = CalScale(yact/2, par->ysize);
566 case YUV444:// yuv444
568 ScaleCbrX = CalScale(xact, par->xsize);
569 ScaleCbrY = CalScale(yact, par->ysize);
572 printk("%s:un supported format\n",__func__);
577 spin_lock(&lcdc_dev->reg_lock);
578 if(likely(lcdc_dev->clk_on))
580 LcdWrReg(lcdc_dev, WIN0_SCL_FACTOR_YRGB, v_X_SCL_FACTOR(ScaleYrgbX) | v_Y_SCL_FACTOR(ScaleYrgbY));
581 LcdWrReg(lcdc_dev, WIN0_SCL_FACTOR_CBR,v_X_SCL_FACTOR(ScaleCbrX)| v_Y_SCL_FACTOR(ScaleCbrY));
582 LcdMskReg(lcdc_dev, SYS_CFG, m_W0_FORMAT, v_W0_FORMAT(fmt_cfg)); //(inf->video_mode==0)
583 LcdWrReg(lcdc_dev, WIN0_ACT_INFO,v_ACT_WIDTH(xact) | v_ACT_HEIGHT(yact));
584 LcdWrReg(lcdc_dev, WIN0_DSP_ST, v_DSP_STX(xpos) | v_DSP_STY(ypos));
585 LcdWrReg(lcdc_dev, WIN0_DSP_INFO, v_DSP_WIDTH(par->xsize)| v_DSP_HEIGHT(par->ysize));
586 LcdMskReg(lcdc_dev,WIN0_COLOR_KEY_CTRL, m_COLORKEY_EN | m_KEYCOLOR,
587 v_COLORKEY_EN(1) | v_KEYCOLOR(0));
591 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN0_VIR,v_WIN0_ARGB888_VIRWIDTH(xvir));
592 LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
595 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_ARGB888_VIRWIDTH(xvir));
596 LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
599 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_ARGB888_VIRWIDTH(xvir));
600 LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
602 case RGB888: //rgb888
603 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_RGB888_VIRWIDTH(xvir));
604 LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W0_RGB_RB_SWAP(0));
606 case RGB565: //rgb565
607 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_RGB565_VIRWIDTH(xvir));
608 LcdMskReg(lcdc_dev,DSP_CTRL,m_W0_RGB_RB_SWAP,v_W0_RGB_RB_SWAP(0));
612 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_YUV_VIRWIDTH(xvir));
613 LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W0_RGB_RB_SWAP(0));
616 printk("%s:un supported format\n",__func__);
622 spin_unlock(&lcdc_dev->reg_lock);
628 static int win1_set_par(struct rk2928_lcdc_device *lcdc_dev,rk_screen *screen,
629 struct layer_par *par )
631 u32 xact, yact, xvir, yvir, xpos, ypos;
632 u32 ScaleYrgbX = 0x1000;
633 u32 ScaleYrgbY = 0x1000;
634 u32 ScaleCbrX = 0x1000;
635 u32 ScaleCbrY = 0x1000;
642 xpos = par->xpos+screen->left_margin + screen->hsync_len;
643 ypos = par->ypos+screen->upper_margin + screen->vsync_len;
645 DBG(1,"%s for lcdc%d>>format:%d>>>xact:%d>>yact:%d>>xsize:%d>>ysize:%d>>xvir:%d>>yvir:%d>>xpos:%d>>ypos:%d>>\n",
646 __func__,lcdc_dev->id,par->format,xact,yact,par->xsize,par->ysize,xvir,yvir,xpos,ypos);
649 spin_lock(&lcdc_dev->reg_lock);
650 if(likely(lcdc_dev->clk_on))
652 LcdWrReg(lcdc_dev, WIN1_DSP_ST,v_DSP_STX(xpos) | v_DSP_STY(ypos));
653 LcdWrReg(lcdc_dev, WIN1_DSP_INFO,v_DSP_WIDTH(par->xsize) | v_DSP_HEIGHT(par->ysize));
654 // enable win1 color key and set the color to black(rgb=0)
655 LcdMskReg(lcdc_dev, WIN1_COLOR_KEY_CTRL, m_COLORKEY_EN | m_KEYCOLOR,v_COLORKEY_EN(1) | v_KEYCOLOR(0));
662 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_ARGB888_VIRWIDTH(xvir));
663 LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
667 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_ARGB888_VIRWIDTH(xvir));
668 LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
672 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_ARGB888_VIRWIDTH(xvir));
673 LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
675 case RGB888: //rgb888
677 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_RGB888_VIRWIDTH(xvir));
678 LcdMskReg(lcdc_dev,DSP_CTRL,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
680 case RGB565: //rgb565
682 LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_RGB565_VIRWIDTH(xvir));
683 LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
686 printk("%s:un supported format\n",__func__);
690 LcdMskReg(lcdc_dev,SYS_CFG, m_W1_FORMAT, v_W1_FORMAT(fmt_cfg));
691 //LCDC_REG_CFG_DONE();
693 spin_unlock(&lcdc_dev->reg_lock);
697 static int rk2928_lcdc_open(struct rk_lcdc_device_driver *dev_drv,int layer_id,bool open)
699 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
703 rk2928_load_screen(dev_drv,1);
707 win0_open(lcdc_dev,open);
709 else if(layer_id == 1)
711 win1_open(lcdc_dev,open);
717 static int rk2928_lcdc_set_par(struct rk_lcdc_device_driver *dev_drv,int layer_id)
719 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
720 struct layer_par *par = NULL;
721 rk_screen *screen = dev_drv->cur_screen;
722 rk_screen *screen0 = dev_drv->screen0;
728 printk(KERN_ERR "screen is null!\n");
733 par = dev_drv->layer_par[0];
734 win0_set_par(lcdc_dev,screen,par);
738 par = dev_drv->layer_par[1];
739 win1_set_par(lcdc_dev,screen,par);
741 Scl_X = CalScale(screen->x_res - 1,screen0->x_res - 1);
742 if((screen->y_res-1)/(screen0->x_res -1) < 2)
745 Scl_Y = CalScale(screen->y_res - 1 ,screen0->y_res - 1);
749 Scl_Y = CalScale(screen->y_res - 2 ,screen0->y_res - 1);
751 LcdWrReg(lcdc_dev,SCL_REG1,v_SCL_V_FACTOR(Scl_Y)|v_SCL_H_FACTOR(Scl_X));
756 int rk2928_lcdc_pan_display(struct rk_lcdc_device_driver * dev_drv,int layer_id)
758 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
759 struct layer_par *par = NULL;
760 rk_screen *screen = dev_drv->cur_screen;
765 printk(KERN_ERR "screen is null!\n");
770 par = dev_drv->layer_par[0];
771 win0_display(lcdc_dev,par);
775 par = dev_drv->layer_par[1];
776 win1_display(lcdc_dev,par);
778 if((dev_drv->first_frame)) //this is the first frame of the system ,enable frame start interrupt
780 dev_drv->first_frame = 0;
781 LcdMskReg(lcdc_dev,INT_STATUS,m_FRM_START_INT_CLEAR |m_FRM_START_INT_EN ,
782 v_FRM_START_INT_CLEAR(1) | v_FRM_START_INT_EN(1));
783 LCDC_REG_CFG_DONE(); // write any value to REG_CFG_DONE let config become effective
787 if(dev_drv->num_buf < 3) //3buffer ,no need to wait for sysn
789 spin_lock_irqsave(&dev_drv->cpl_lock,flags);
790 init_completion(&dev_drv->frame_done);
791 spin_unlock_irqrestore(&dev_drv->cpl_lock,flags);
792 timeout = wait_for_completion_timeout(&dev_drv->frame_done,msecs_to_jiffies(dev_drv->cur_screen->ft+5));
793 if(!timeout&&(!dev_drv->frame_done.done))
795 //printk(KERN_ERR "wait for new frame start time out!\n");
803 int rk2928_lcdc_ioctl(struct rk_lcdc_device_driver * dev_drv,unsigned int cmd, unsigned long arg,int layer_id)
805 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
807 void __user *argp = (void __user *)arg;
811 case RK_FBIOGET_PANEL_SIZE: //get panel size
812 panel_size[0] = dev_drv->screen0->x_res;
813 panel_size[1] = dev_drv->screen0->y_res;
814 if(copy_to_user(argp, panel_size, 8))
823 static int rk2928_lcdc_get_layer_state(struct rk_lcdc_device_driver *dev_drv,int layer_id)
825 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
826 struct layer_par *par = dev_drv->layer_par[layer_id];
828 spin_lock(&lcdc_dev->reg_lock);
833 par->state = LcdReadBit(lcdc_dev,SYS_CFG,m_W0_EN);
835 else if( layer_id == 1)
837 par->state = LcdReadBit(lcdc_dev,SYS_CFG,m_W1_EN);
840 spin_unlock(&lcdc_dev->reg_lock);
846 /***********************************
848 swap:1 win0 on the top of win1
849 0 win1 on the top of win0
852 ************************************/
853 static int rk2928_lcdc_ovl_mgr(struct rk_lcdc_device_driver *dev_drv,int swap,bool set)
855 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
857 spin_lock(&lcdc_dev->reg_lock);
860 if(set) //set overlay
862 LcdMskReg(lcdc_dev,DSP_CTRL,m_W0W1_POSITION_SWAP,v_W0W1_POSITION_SWAP(swap));
868 ovl = LcdReadBit(lcdc_dev,DSP_CTRL,m_W0W1_POSITION_SWAP);
875 spin_unlock(&lcdc_dev->reg_lock);
880 static ssize_t dump_win0_disp_info(struct rk2928_lcdc_device *lcdc_dev,char *buf)
882 char format[9] = "NULL";
883 u32 fmt_id = LcdRdReg(lcdc_dev,SYS_CFG);
884 u32 xvir,act_info,dsp_info,dsp_st,factor;
885 u16 x_act,y_act,x_dsp,y_dsp,x_factor,y_factor;
887 switch((fmt_id&m_W0_FORMAT)>>3)
890 strcpy(format,"ARGB888");
893 strcpy(format,"RGB888");
896 strcpy(format,"RGB565");
899 strcpy(format,"YCbCr422");
902 strcpy(format,"YCbCr420");
905 strcpy(format,"YCbCr444");
908 strcpy(format,"inval\n");
912 xvir = LcdRdReg(lcdc_dev,WIN_VIR)&0xffff;
913 act_info = LcdRdReg(lcdc_dev,WIN0_ACT_INFO);
914 dsp_info = LcdRdReg(lcdc_dev,WIN0_DSP_INFO);
915 dsp_st = LcdRdReg(lcdc_dev,WIN0_DSP_ST);
916 factor = LcdRdReg(lcdc_dev,WIN0_SCL_FACTOR_YRGB);
917 x_act = (act_info&0xffff) + 1;
918 y_act = (act_info>>16) + 1;
919 x_dsp = (dsp_info&0xffff) + 1;
920 y_dsp = (dsp_info>>16) + 1;
921 x_factor = factor&0xffff;
922 y_factor = factor>>16;
923 x_scale = 4096*100/x_factor;
924 y_scale = 4096*100/y_factor;
925 return snprintf(buf,PAGE_SIZE,"xvir:%d\nxact:%d\nyact:%d\nxdsp:%d\nydsp:%d\nx_st:%d\ny_st:%d\nx_scale:%d.%d\ny_scale:%d.%d\nformat:%s\n",
926 xvir,x_act,y_act,x_dsp,y_dsp,dsp_st&0xffff,dsp_st>>16,x_scale/100,x_scale%100,y_scale/100,y_scale%100,format);
930 static ssize_t dump_win1_disp_info(struct rk2928_lcdc_device *lcdc_dev,char *buf)
932 char format[9] = "NULL";
933 u32 fmt_id = LcdRdReg(lcdc_dev,SYS_CFG);
934 u32 xvir,act_info,dsp_info,dsp_st,factor;
935 u16 x_act,y_act,x_dsp,y_dsp,x_factor,y_factor;
937 switch((fmt_id&m_W1_FORMAT)>>6)
940 strcpy(format,"ARGB888");
943 strcpy(format,"RGB888");
946 strcpy(format,"RGB565");
949 strcpy(format,"inval\n");
953 xvir = (LcdRdReg(lcdc_dev,WIN_VIR)>>16)&0xfff;
954 dsp_info = LcdRdReg(lcdc_dev,WIN1_DSP_INFO);
955 dsp_st = LcdRdReg(lcdc_dev,WIN1_DSP_ST);
957 x_dsp = dsp_info&0xffff;
958 y_dsp = dsp_info>>16;
960 return snprintf(buf,PAGE_SIZE,"xvir:%d\nxdsp:%d\nydsp:%d\nx_st:%d\ny_st:%d\nformat:%s\n",
961 xvir,x_dsp,y_dsp,dsp_st&0xffff,dsp_st>>16,format);
964 static ssize_t rk2928_lcdc_get_disp_info(struct rk_lcdc_device_driver *dev_drv,char *buf,int layer_id)
966 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
969 return dump_win0_disp_info(lcdc_dev,buf);
971 else if(layer_id == 1)
973 return dump_win1_disp_info(lcdc_dev,buf);
981 /*******************************************
982 lcdc fps manager,set or get lcdc fps
985 ********************************************/
986 static int rk2928_lcdc_fps_mgr(struct rk_lcdc_device_driver *dev_drv,int fps,bool set)
988 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
989 rk_screen * screen = dev_drv->cur_screen;
996 ft = div_u64(1000000000000llu,fps);
997 dev_drv->pixclock = div_u64(ft,(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
998 (screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len));
999 dotclk = div_u64(1000000000000llu,dev_drv->pixclock);
1000 ret = clk_set_rate(lcdc_dev->dclk, dotclk);
1003 printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
1005 dev_drv->pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
1009 ft = (u64)(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
1010 (screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len)*
1011 (dev_drv->pixclock); // one frame time ,(pico seconds)
1012 fps = div64_u64(1000000000000llu,ft);
1013 screen->ft = 1000/fps ; //one frame time in ms
1018 static int rk2928_fb_layer_remap(struct rk_lcdc_device_driver *dev_drv,
1019 enum fb_win_map_order order)
1021 mutex_lock(&dev_drv->fb_win_id_mutex);
1022 if(order == FB_DEFAULT_ORDER)
1024 order = FB0_WIN0_FB1_WIN1_FB2_WIN2;
1026 dev_drv->fb2_win_id = order/100;
1027 dev_drv->fb1_win_id = (order/10)%10;
1028 dev_drv->fb0_win_id = order%10;
1029 mutex_unlock(&dev_drv->fb_win_id_mutex);
1031 printk("fb0:win%d\nfb1:win%d\nfb2:win%d\n",dev_drv->fb0_win_id,dev_drv->fb1_win_id,
1032 dev_drv->fb2_win_id);
1037 static int rk2928_fb_get_layer(struct rk_lcdc_device_driver *dev_drv,const char *id)
1040 mutex_lock(&dev_drv->fb_win_id_mutex);
1041 if(!strcmp(id,"fb0"))
1043 layer_id = dev_drv->fb0_win_id;
1045 else if(!strcmp(id,"fb1"))
1047 layer_id = dev_drv->fb1_win_id;
1049 else if(!strcmp(id,"fb2"))
1051 layer_id = dev_drv->fb2_win_id;
1055 printk(KERN_ERR "%s>>un supported %s\n",__func__,id);
1058 mutex_unlock(&dev_drv->fb_win_id_mutex);
1059 //printk("%s %s win%d\n",__func__,id,layer_id);
1063 static int rk2928_lcdc_hdmi_process(struct rk_lcdc_device_driver *dev_drv,int mode)
1065 #if !defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
1066 printk("%s>>>>>>>>mode:%d\n",__func__,mode);
1069 rk2928_lcdc_iomux(dev_drv->screen0,0); //switch to gpio mode,to avoid current leakage
1070 if(dev_drv->screen_ctr_info->io_disable)
1071 dev_drv->screen_ctr_info->io_disable();
1075 rk2928_lcdc_iomux(dev_drv->screen0,1); //switch to gpio mode,to avoid current leakage
1076 if(dev_drv->screen_ctr_info->io_enable)
1077 dev_drv->screen_ctr_info->io_enable();
1084 int rk2928_lcdc_early_suspend(struct rk_lcdc_device_driver *dev_drv)
1086 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
1088 if(dev_drv->screen0->standby)
1089 dev_drv->screen0->standby(1);
1090 if(dev_drv->screen_ctr_info->io_disable)
1091 dev_drv->screen_ctr_info->io_disable();
1093 if(dev_drv->cur_screen->sscreen_set)
1094 dev_drv->cur_screen->sscreen_set(dev_drv->cur_screen , 0);
1096 spin_lock(&lcdc_dev->reg_lock);
1097 if(likely(lcdc_dev->clk_on))
1099 lcdc_dev->clk_on = 0;
1100 LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
1101 LcdSetBit(lcdc_dev,DSP_CTRL,m_BLACK_MODE);
1102 LcdMskReg(lcdc_dev, SYS_CFG,m_DSP_OUT_ZERO | m_LCDC_STANDBY,
1103 v_DSP_OUT_ZERO(1) | v_LCDC_STANDBY(1));
1104 LCDC_REG_CFG_DONE();
1105 spin_unlock(&lcdc_dev->reg_lock);
1107 else //clk already disabled
1109 spin_unlock(&lcdc_dev->reg_lock);
1115 rk2928_lcdc_iomux(dev_drv->screen0,0); //switch to gpio mode,to avoid current leakage
1116 clk_disable(lcdc_dev->dclk);
1117 clk_disable(lcdc_dev->hclk);
1118 clk_disable(lcdc_dev->aclk);
1119 clk_disable(lcdc_dev->pd);
1126 int rk2928_lcdc_early_resume(struct rk_lcdc_device_driver *dev_drv)
1128 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
1130 if(dev_drv->screen_ctr_info->io_enable) //power on
1131 dev_drv->screen_ctr_info->io_enable();
1133 if(!lcdc_dev->clk_on)
1135 clk_enable(lcdc_dev->pd);
1136 clk_enable(lcdc_dev->hclk);
1137 clk_enable(lcdc_dev->dclk);
1138 clk_enable(lcdc_dev->aclk);
1140 rk2928_lcdc_iomux(dev_drv->screen0,1); //switch to lcdc io
1141 memcpy((u8*)lcdc_dev->preg, (u8*)&lcdc_dev->regbak, 0xc4); //resume reg
1143 spin_lock(&lcdc_dev->reg_lock);
1144 if(lcdc_dev->atv_layer_cnt)
1146 LcdMskReg(lcdc_dev, SYS_CFG,m_DSP_OUT_ZERO | m_LCDC_STANDBY,
1147 v_DSP_OUT_ZERO(0) | v_LCDC_STANDBY(0));
1148 LcdClrBit(lcdc_dev,DSP_CTRL,m_BLACK_MODE);
1149 LCDC_REG_CFG_DONE();
1151 lcdc_dev->clk_on = 1;
1152 spin_unlock(&lcdc_dev->reg_lock);
1155 if(dev_drv->cur_screen->sscreen_set)
1156 dev_drv->cur_screen->sscreen_set(dev_drv->cur_screen , 1);
1158 if(dev_drv->screen0->standby)
1159 dev_drv->screen0->standby(0); //screen wake up
1164 static irqreturn_t rk2928_lcdc_isr(int irq, void *dev_id)
1166 struct rk2928_lcdc_device *lcdc_dev = (struct rk2928_lcdc_device *)dev_id;
1168 ktime_t timestamp = ktime_get();
1170 LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
1171 //LCDC_REG_CFG_DONE();
1172 //LcdMskReg(lcdc_dev, INT_STATUS, m_LINE_FLAG_INT_CLEAR, v_LINE_FLAG_INT_CLEAR(1));
1174 if(lcdc_dev->driver.num_buf < 3) //three buffer ,no need to wait for sync
1176 spin_lock(&(lcdc_dev->driver.cpl_lock));
1177 complete(&(lcdc_dev->driver.frame_done));
1178 spin_unlock(&(lcdc_dev->driver.cpl_lock));
1181 lcdc_dev->driver.vsync_info.timestamp = timestamp;
1182 wake_up_interruptible_all(&lcdc_dev->driver.vsync_info.wait);
1186 static struct layer_par lcdc_layer[] = {
1195 .support_3d = false,
1199 static struct rk_lcdc_device_driver lcdc_driver = {
1201 .def_layer_par = lcdc_layer,
1202 .num_layer = ARRAY_SIZE(lcdc_layer),
1203 .open = rk2928_lcdc_open,
1204 .init_lcdc = init_rk2928_lcdc,
1205 .ioctl = rk2928_lcdc_ioctl,
1206 .suspend = rk2928_lcdc_early_suspend,
1207 .resume = rk2928_lcdc_early_resume,
1208 .set_par = rk2928_lcdc_set_par,
1209 .blank = rk2928_lcdc_blank,
1210 .pan_display = rk2928_lcdc_pan_display,
1211 .load_screen = rk2928_load_screen,
1212 .get_layer_state = rk2928_lcdc_get_layer_state,
1213 .ovl_mgr = rk2928_lcdc_ovl_mgr,
1214 .get_disp_info = rk2928_lcdc_get_disp_info,
1215 .fps_mgr = rk2928_lcdc_fps_mgr,
1216 .fb_get_layer = rk2928_fb_get_layer,
1217 .fb_layer_remap = rk2928_fb_layer_remap,
1218 .lcdc_hdmi_process = rk2928_lcdc_hdmi_process,
1221 static int rk2928_lcdc_suspend(struct platform_device *pdev, pm_message_t state)
1226 static int rk2928_lcdc_resume(struct platform_device *pdev)
1232 #define rk2928_lcdc_suspend NULL
1233 #define rk2928_lcdc_resume NULL
1236 static int __devinit rk2928_lcdc_probe (struct platform_device *pdev)
1238 struct rk2928_lcdc_device *lcdc_dev=NULL;
1241 struct rk29fb_info *screen_ctr_info;
1242 struct resource *res = NULL;
1243 struct resource *mem;
1246 /*************Malloc rk2928lcdc_inf and set it to pdev for drvdata**********/
1247 lcdc_dev = kzalloc(sizeof(struct rk2928_lcdc_device), GFP_KERNEL);
1250 dev_err(&pdev->dev, ">>rk2928 lcdc device kmalloc fail!");
1253 platform_set_drvdata(pdev, lcdc_dev);
1254 lcdc_dev->id = pdev->id;
1255 screen_ctr_info = (struct rk29fb_info * )pdev->dev.platform_data;
1256 screen0 = kzalloc(sizeof(rk_screen), GFP_KERNEL); //rk2928 has one lcdc but two outputs
1259 dev_err(&pdev->dev, ">>rk2928 lcdc screen1 kmalloc fail!");
1263 screen0->lcdc_id = 0; //this id can be changed dynamic
1264 screen0->screen_id = 0; //this id is fixed
1265 screen1 = kzalloc(sizeof(rk_screen), GFP_KERNEL);
1268 dev_err(&pdev->dev, ">>rk2928 lcdc screen1 kmalloc fail!");
1272 screen1->lcdc_id = 1;
1273 screen1->screen_id = 1;
1275 /****************get lcdc0 reg *************************/
1276 res = platform_get_resource(pdev, IORESOURCE_MEM,0);
1279 dev_err(&pdev->dev, "failed to get io resource for lcdc%d \n",lcdc_dev->id);
1283 lcdc_dev->reg_phy_base = res->start;
1284 lcdc_dev->len = resource_size(res);
1285 mem = request_mem_region(lcdc_dev->reg_phy_base, resource_size(res), pdev->name);
1288 dev_err(&pdev->dev, "failed to request mem region for lcdc%d\n",lcdc_dev->id);
1292 lcdc_dev->reg_vir_base = ioremap(lcdc_dev->reg_phy_base, resource_size(res));
1293 if (lcdc_dev->reg_vir_base == NULL)
1295 dev_err(&pdev->dev, "cannot map IO\n");
1300 lcdc_dev->preg = (LCDC_REG*)lcdc_dev->reg_vir_base;
1301 printk("lcdc%d:reg_phy_base = 0x%08x,reg_vir_base:0x%p\n",pdev->id,lcdc_dev->reg_phy_base, lcdc_dev->preg);
1302 lcdc_dev->driver.dev=&pdev->dev;
1303 lcdc_dev->driver.screen0 = screen0; //direct out put
1304 lcdc_dev->driver.screen1 = screen1; //out put from scale
1305 lcdc_dev->driver.cur_screen = screen0;
1306 lcdc_dev->driver.screen_ctr_info = screen_ctr_info;
1307 spin_lock_init(&lcdc_dev->reg_lock);
1308 lcdc_dev->irq = platform_get_irq(pdev, 0);
1309 if(lcdc_dev->irq < 0)
1311 dev_err(&pdev->dev, "cannot find IRQ\n");
1314 ret = request_irq(lcdc_dev->irq, rk2928_lcdc_isr, IRQF_DISABLED,dev_name(&pdev->dev),lcdc_dev);
1317 dev_err(&pdev->dev, "cannot requeset irq %d - err %d\n", lcdc_dev->irq, ret);
1322 if(screen_ctr_info->set_screen_info)
1324 screen_ctr_info->set_screen_info(screen0,screen_ctr_info->lcd_info);
1325 if(SCREEN_NULL==screen0->type)
1327 printk(KERN_WARNING "no display device on lcdc%d!?\n",lcdc_dev->id);
1330 if(screen_ctr_info->io_init)
1331 screen_ctr_info->io_init(NULL);
1335 printk(KERN_WARNING "no display device on lcdc%d!?\n",lcdc_dev->id);
1340 ret = rk_fb_register(&(lcdc_dev->driver),&lcdc_driver,lcdc_dev->id);
1343 printk(KERN_ERR "register fb for lcdc%d failed!\n",lcdc_dev->id);
1346 printk("rk2928 lcdc%d probe ok!\n",lcdc_dev->id);
1351 free_irq(lcdc_dev->irq,lcdc_dev);
1353 iounmap(lcdc_dev->reg_vir_base);
1355 release_mem_region(lcdc_dev->reg_phy_base,resource_size(res));
1359 platform_set_drvdata(pdev, NULL);
1364 static int __devexit rk2928_lcdc_remove(struct platform_device *pdev)
1366 struct rk2928_lcdc_device *lcdc_dev = platform_get_drvdata(pdev);
1367 rk_fb_unregister(&(lcdc_dev->driver));
1368 rk2928_lcdc_deinit(lcdc_dev);
1369 iounmap(lcdc_dev->reg_vir_base);
1370 release_mem_region(lcdc_dev->reg_phy_base,lcdc_dev->len);
1371 kfree(lcdc_dev->screen);
1376 static void rk2928_lcdc_shutdown(struct platform_device *pdev)
1378 struct rk2928_lcdc_device *lcdc_dev = platform_get_drvdata(pdev);
1379 if(lcdc_dev->driver.cur_screen->standby) //standby the screen if necessary
1380 lcdc_dev->driver.cur_screen->standby(1);
1381 if(lcdc_dev->driver.screen_ctr_info->io_disable) //power off the screen if necessary
1382 lcdc_dev->driver.screen_ctr_info->io_disable();
1383 if(lcdc_dev->driver.cur_screen->sscreen_set) //turn off lvds
1384 lcdc_dev->driver.cur_screen->sscreen_set(lcdc_dev->driver.cur_screen , 0);
1385 //rk_fb_unregister(&(lcdc_dev->driver));
1386 rk2928_lcdc_deinit(lcdc_dev);
1387 /*iounmap(lcdc_dev->reg_vir_base);
1388 release_mem_region(lcdc_dev->reg_phy_base,lcdc_dev->len);
1389 kfree(lcdc_dev->screen);
1394 static struct platform_driver rk2928lcdc_driver = {
1395 .probe = rk2928_lcdc_probe,
1396 .remove = __devexit_p(rk2928_lcdc_remove),
1398 .name = "rk2928-lcdc",
1399 .owner = THIS_MODULE,
1401 .suspend = rk2928_lcdc_suspend,
1402 .resume = rk2928_lcdc_resume,
1403 .shutdown = rk2928_lcdc_shutdown,
1406 static int __init rk2928_lcdc_init(void)
1408 return platform_driver_register(&rk2928lcdc_driver);
1411 static void __exit rk2928_lcdc_exit(void)
1413 platform_driver_unregister(&rk2928lcdc_driver);
1418 fs_initcall(rk2928_lcdc_init);
1419 module_exit(rk2928_lcdc_exit);