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 "rk2928_lcdc.h"
35 #include "../lvds/rk_lvds.h"
41 static int dbg_thresd = 2;
42 module_param(dbg_thresd, int, S_IRUGO|S_IWUSR);
43 #define DBG(level,x...) do { if(unlikely(dbg_thresd > level)) printk(KERN_INFO x); } while (0)
46 static int init_rk2928_lcdc(struct rk_lcdc_device_driver *dev_drv)
48 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
49 if(lcdc_dev->id == 0) //lcdc0
51 lcdc_dev->hclk = clk_get(NULL,"hclk_lcdc0");
52 lcdc_dev->aclk = clk_get(NULL,"aclk_lcdc0");
53 lcdc_dev->dclk = clk_get(NULL,"dclk_lcdc0");
54 lcdc_dev->sclk = clk_get(NULL,"sclk_lcdc0");
58 printk(KERN_ERR "invalid lcdc device!\n");
61 if (IS_ERR(lcdc_dev->sclk) || (IS_ERR(lcdc_dev->aclk)) ||(IS_ERR(lcdc_dev->dclk)) || (IS_ERR(lcdc_dev->hclk)))
63 printk(KERN_ERR "failed to get lcdc%d clk source\n",lcdc_dev->id);
66 clk_enable(lcdc_dev->pd);
67 clk_enable(lcdc_dev->hclk); //enable aclk and hclk for register config
68 clk_enable(lcdc_dev->aclk);
70 LcdSetBit(lcdc_dev,SYS_CFG, m_LCDC_AXICLK_AUTO_ENABLE);//eanble axi-clk auto gating for low power
71 LcdMskReg(lcdc_dev,INT_STATUS,m_FRM_START_INT_CLEAR | m_BUS_ERR_INT_CLEAR | m_LINE_FLAG_INT_EN |
72 m_FRM_START_INT_EN | m_HOR_START_INT_EN,v_FRM_START_INT_CLEAR(1) | v_BUS_ERR_INT_CLEAR(0) |
73 v_LINE_FLAG_INT_EN(0) | v_FRM_START_INT_EN(0) | v_HOR_START_INT_EN(0)); //enable frame start interrupt for sync
74 //LCDC_REG_CFG_DONE(); // write any value to REG_CFG_DONE let config become effective
78 static int rk2928_lcdc_deinit(struct rk2928_lcdc_device *lcdc_dev)
80 spin_lock(&lcdc_dev->reg_lock);
81 if(likely(lcdc_dev->clk_on))
84 LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
85 LcdMskReg(lcdc_dev, INT_STATUS, m_HOR_START_INT_EN | m_FRM_START_INT_EN |
86 m_LINE_FLAG_INT_EN | m_BUS_ERR_INT_EN,v_HOR_START_INT_EN(0) | v_FRM_START_INT_EN(0) |
87 v_LINE_FLAG_INT_EN(0) | v_BUS_ERR_INT_EN(0)); //disable all lcdc interrupt
88 LcdSetBit(lcdc_dev,SYS_CFG,m_LCDC_STANDBY);
90 spin_unlock(&lcdc_dev->reg_lock);
92 else //clk already disabled
94 spin_unlock(&lcdc_dev->reg_lock);
102 static int rk2928_load_screen(struct rk_lcdc_device_driver *dev_drv, bool initscreen)
105 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
106 rk_screen *screen = dev_drv->cur_screen;
107 rk_screen *screen0 = dev_drv->screen0;
111 u16 right_margin = screen->right_margin;
112 u16 lower_margin = screen->lower_margin;
113 u16 x_res = screen->x_res, y_res = screen->y_res;
114 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",
115 screen->left_margin,screen->hsync_len,screen->x_res,screen->right_margin,screen->upper_margin,screen->vsync_len,screen->y_res,
116 screen->lower_margin);
117 // set the rgb or mcu
118 spin_lock(&lcdc_dev->reg_lock);
119 if(likely(lcdc_dev->clk_on))
121 if(screen->type==SCREEN_MCU)
123 printk(KERN_ERR "MCU Screen is not supported by RK2928\n");
127 switch (screen->face)
131 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
135 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
139 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
143 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
147 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
148 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
151 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
152 LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
157 //use default overlay,set vsyn hsync den dclk polarity
158 LcdMskReg(lcdc_dev, DSP_CTRL,m_DISPLAY_FORMAT | m_HSYNC_POLARITY | m_VSYNC_POLARITY |
159 m_DEN_POLARITY |m_DCLK_POLARITY | m_OUTPUT_RB_SWAP | m_OUTPUT_RG_SWAP | m_BLACK_MODE,
160 v_DISPLAY_FORMAT(face) | v_HSYNC_POLARITY(screen->pin_hsync) |
161 v_VSYNC_POLARITY(screen->pin_vsync) | v_DEN_POLARITY(screen->pin_den) |
162 v_DCLK_POLARITY(screen->pin_dclk) | v_OUTPUT_RB_SWAP(screen->swap_rb) |
163 v_OUTPUT_RG_SWAP(screen->swap_rg) |v_BLACK_MODE(0));
165 //set background color to black,set swap according to the screen panel,disable blank mode
166 LcdMskReg(lcdc_dev, BG_COLOR, m_BG_COLOR ,v_BG_COLOR(0x000000));
169 LcdWrReg(lcdc_dev, DSP_HTOTAL_HS_END,v_HSYNC(screen->hsync_len) |
170 v_HORPRD(screen->hsync_len + screen->left_margin + x_res + right_margin));
171 LcdWrReg(lcdc_dev, DSP_HACT_ST_END, v_HAEP(screen->hsync_len + screen->left_margin + x_res) |
172 v_HASP(screen->hsync_len + screen->left_margin));
174 LcdWrReg(lcdc_dev, DSP_VTOTAL_VS_END, v_VSYNC(screen->vsync_len) |
175 v_VERPRD(screen->vsync_len + screen->upper_margin + y_res + lower_margin));
176 LcdWrReg(lcdc_dev, DSP_VACT_ST_END, v_VAEP(screen->vsync_len + screen->upper_margin+y_res)|
177 v_VASP(screen->vsync_len + screen->upper_margin));
180 if(dev_drv->screen0->lcdc_id == 1)
182 //set register for scaller
183 LcdMskReg(lcdc_dev,SCL_REG0,m_SCL_DSP_ZERO | m_SCL_DEN_INVERT |
184 m_SCL_SYNC_INVERT | m_SCL_DCLK_INVERT | m_SCL_EN,v_SCL_DSP_ZERO(0) |
185 v_SCL_DEN_INVERT(screen0->s_den_inv) | v_SCL_SYNC_INVERT(screen0->s_hv_sync_inv) |
186 v_SCL_DCLK_INVERT(screen0->s_clk_inv) | v_SCL_EN(1));
187 LcdWrReg(lcdc_dev,SCL_REG2,v_HASP(screen0->s_vsync_st) | v_HAEP(screen0->s_hsync_st));
188 LcdWrReg(lcdc_dev,SCL_REG3,v_HASP(screen0->s_hsync_len) |
189 v_HAEP(screen0->s_hsync_len + screen0->s_left_margin +
190 screen0->x_res + screen0->s_right_margin));
191 LcdWrReg(lcdc_dev,SCL_REG4,v_HASP(screen0->s_hsync_len + screen0->s_left_margin) |
192 v_HAEP(screen0->s_hsync_len + screen0->s_left_margin + screen0->x_res));
193 LcdWrReg(lcdc_dev,SCL_REG5,v_VASP(screen0->s_vsync_len) |
194 v_VAEP(screen0->s_vsync_len + screen0->s_upper_margin +
195 screen0->y_res + screen0->s_lower_margin));
196 LcdWrReg(lcdc_dev,SCL_REG6,v_VASP(screen0->s_vsync_len +
197 screen0->s_upper_margin) | v_VAEP(screen0->s_vsync_len +
198 screen0->s_upper_margin + screen0->y_res ));
199 LcdWrReg(lcdc_dev,SCL_REG8,v_VASP(screen0->s_vsync_len + screen0->s_upper_margin) |
200 v_VAEP(screen0->s_vsync_len + screen0->s_upper_margin + screen0->y_res));
201 LcdWrReg(lcdc_dev,SCL_REG7,v_HASP(screen0->s_hsync_len + screen0->s_left_margin) |
202 v_HAEP(screen0->s_hsync_len + screen0->s_left_margin + screen0->x_res ));
203 LcdWrReg(lcdc_dev,SCL_REG1,v_SCL_V_FACTOR(0x1000)|v_SCL_H_FACTOR(0x1000));
205 // let above to take effect
206 //LCDC_REG_CFG_DONE();
208 spin_unlock(&lcdc_dev->reg_lock);
210 #ifdef CONFIG_RK_LVDS
211 rk_lvds_register(dev_drv->screen0);
213 if(dev_drv->screen0->type == SCREEN_RGB) //iomux for RGB screen
216 if(dev_drv->screen0->lcdc_id == 0)
218 rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC0_DCLK);
219 rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC0_HSYNC);
220 rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC0_VSYNC);
221 rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC0_DEN);
222 rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC0_D10);
223 rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC0_D11);
224 rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC0_D12);
225 rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC0_D13);
226 rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC0_D14);
227 rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC0_D15);
228 rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC0_D16);
229 rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC0_D17);
231 else if(dev_drv->screen0->lcdc_id == 1)
233 rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC1_DCLK);
234 rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC1_HSYNC);
235 rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC1_VSYNC);
236 rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC1_DEN);
237 rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC1_D10);
238 rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC1_D11);
239 rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC1_D12);
240 rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC1_D13);
241 rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC1_D14);
242 rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC1_D15);
243 rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC1_D16);
244 rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC1_D17);
248 printk(KERN_WARNING "%s>>>no such interface:%d\n",dev_drv->cur_screen->lcdc_id);
252 //rk30_mux_api_set(GPIO2C4_LCDC0_D18_LCDC1_D18_I2C2_SDA_NAME, GPIO2C_LCDC1_D18);
253 //rk30_mux_api_set(GPIO2C5_LCDC0_D19_LCDC1_D19_I2C2_SCL_NAME, GPIO2C_LCDC1_D19);
254 //rk30_mux_api_set(GPIO2C6_LCDC0_D20_LCDC1_D20_UART2_SIN_NAME, GPIO2C_LCDC1_D20);
255 //rk30_mux_api_set(GPIO2C7_LCDC0_D21_LCDC1_D21_UART2_SOUT_NAME, GPIO2C_LCDC1_D21);
256 //rk30_mux_api_set(GPIO2D0_LCDC0_D22_LCDC1_D22_NAME, GPIO2D_LCDC1_D22);
257 //rk30_mux_api_set(GPIO2D1_LCDC0_D23_LCDC1_D23_NAME, GPIO2D_LCDC1_D23);
258 printk("RGB screen connect to rk2928 lcdc interface%d\n",dev_drv->screen0->lcdc_id);
262 ret = clk_set_rate(lcdc_dev->dclk, screen->pixclock);
265 printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
267 lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
268 clk_enable(lcdc_dev->dclk);
269 if(dev_drv->screen0->lcdc_id == 1) //if connect to output interface 1,need scale
271 ret = clk_set_rate(lcdc_dev->sclk, screen0->s_pixclock);
274 printk(KERN_ERR ">>>>>> set lcdc%d sclk failed\n",lcdc_dev->id);
276 lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->sclk));
277 //printk("%s: sclk:%lu>>need:%d",lcdc_dev->driver.name,,screen0->s_pixclock);
278 clk_enable(lcdc_dev->sclk);
283 ft = (u64)(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
284 (screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len)*
285 (dev_drv->pixclock); // one frame time ,(pico seconds)
286 fps = div64_u64(1000000000000llu,ft);
287 screen->ft = 1000/fps;
288 printk("%s: dclk:%lu>>sclk:%lu>>fps:%d ",lcdc_dev->driver.name,clk_get_rate(lcdc_dev->dclk),
289 clk_get_rate(lcdc_dev->sclk),fps);
296 printk("%s for lcdc%d ok!\n",__func__,lcdc_dev->id);
301 //enable layer,open:1,enable;0 disable
302 static int win0_open(struct rk2928_lcdc_device *lcdc_dev,bool open)
305 spin_lock(&lcdc_dev->reg_lock);
306 if(likely(lcdc_dev->clk_on))
310 if(!lcdc_dev->atv_layer_cnt)
312 LcdClrBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
314 lcdc_dev->atv_layer_cnt++;
318 lcdc_dev->atv_layer_cnt--;
320 lcdc_dev->driver.layer_par[0]->state = open;
322 LcdMskReg(lcdc_dev, SYS_CFG, m_W0_EN, v_W0_EN(open));
323 if(!lcdc_dev->atv_layer_cnt) //if no layer used,disable lcdc
325 LcdSetBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
327 //LCDC_REG_CFG_DONE();
329 spin_unlock(&lcdc_dev->reg_lock);
330 printk(KERN_INFO "lcdc%d win0 %s\n",lcdc_dev->id,open?"open":"closed");
333 static int win1_open(struct rk2928_lcdc_device *lcdc_dev,bool open)
335 spin_lock(&lcdc_dev->reg_lock);
336 if(likely(lcdc_dev->clk_on))
340 if(!lcdc_dev->atv_layer_cnt)
342 printk("lcdc%d wakeup from stanby\n",lcdc_dev->id);
343 LcdClrBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
345 lcdc_dev->atv_layer_cnt++;
349 lcdc_dev->atv_layer_cnt--;
351 lcdc_dev->driver.layer_par[1]->state = open;
353 LcdMskReg(lcdc_dev, SYS_CFG, m_W1_EN, v_W1_EN(open));
354 if(!lcdc_dev->atv_layer_cnt) //if no layer used,disable lcdc
356 printk(KERN_INFO "no layer of lcdc%d is used,go to standby!",lcdc_dev->id);
357 LcdSetBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
359 //LCDC_REG_CFG_DONE();
361 spin_unlock(&lcdc_dev->reg_lock);
362 printk(KERN_INFO "lcdc%d win1 %s\n",lcdc_dev->id,open?"open":"closed");
367 static int rk2928_lcdc_blank(struct rk_lcdc_device_driver*lcdc_drv,int layer_id,int blank_mode)
369 struct rk2928_lcdc_device * lcdc_dev = container_of(lcdc_drv,struct rk2928_lcdc_device ,driver);
371 printk(KERN_INFO "%s>>>>>%d\n",__func__, blank_mode);
373 spin_lock(&lcdc_dev->reg_lock);
374 if(likely(lcdc_dev->clk_on))
378 case FB_BLANK_UNBLANK:
379 LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(0));
381 case FB_BLANK_NORMAL:
382 LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(1));
385 LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(1));
390 spin_unlock(&lcdc_dev->reg_lock);
395 static int win0_display(struct rk2928_lcdc_device *lcdc_dev,struct layer_par *par )
399 y_addr = par->smem_start + par->y_offset;
400 uv_addr = par->cbr_start + par->c_offset;
401 DBG(2,KERN_INFO "lcdc%d>>%s:y_addr:0x%x>>uv_addr:0x%x\n",lcdc_dev->id,__func__,y_addr,uv_addr);
403 spin_lock(&lcdc_dev->reg_lock);
404 if(likely(lcdc_dev->clk_on))
406 LcdWrReg(lcdc_dev, WIN0_YRGB_MST,y_addr);
407 LcdWrReg(lcdc_dev, WIN0_CBR_MST,uv_addr);
410 spin_unlock(&lcdc_dev->reg_lock);
416 static int win1_display(struct rk2928_lcdc_device *lcdc_dev,struct layer_par *par )
420 y_addr = par->smem_start + par->y_offset;
421 uv_addr = par->cbr_start + par->c_offset;
422 DBG(2,KERN_INFO "lcdc%d>>%s>>y_addr:0x%x>>uv_addr:0x%x\n",lcdc_dev->id,__func__,y_addr,uv_addr);
424 spin_lock(&lcdc_dev->reg_lock);
425 if(likely(lcdc_dev->clk_on))
427 LcdWrReg(lcdc_dev, WIN1_RGB_MST, y_addr);
430 spin_unlock(&lcdc_dev->reg_lock);
435 static int win0_set_par(struct rk2928_lcdc_device *lcdc_dev,rk_screen *screen,
436 struct layer_par *par )
438 u32 xact, yact, xvir, yvir, xpos, ypos;
439 u32 ScaleYrgbX = 0x1000;
440 u32 ScaleYrgbY = 0x1000;
441 u32 ScaleCbrX = 0x1000;
442 u32 ScaleCbrY = 0x1000;
444 xact = par->xact; //active (origin) picture window width/height
446 xvir = par->xvir; // virtual resolution
448 xpos = par->xpos+screen->left_margin + screen->hsync_len;
449 ypos = par->ypos+screen->upper_margin + screen->vsync_len;
451 ScaleYrgbX = CalScale(xact, par->xsize); //both RGB and yuv need this two factor
452 ScaleYrgbY = CalScale(yact, par->ysize);
455 case YUV422:// yuv422
456 ScaleCbrX = CalScale((xact/2), par->xsize);
457 ScaleCbrY = CalScale(yact, par->ysize);
459 case YUV420: // yuv420
460 ScaleCbrX = CalScale(xact/2, par->xsize);
461 ScaleCbrY = CalScale(yact/2, par->ysize);
463 case YUV444:// yuv444
464 ScaleCbrX = CalScale(xact, par->xsize);
465 ScaleCbrY = CalScale(yact, par->ysize);
471 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",
472 __func__,lcdc_dev->id,par->format,xact,yact,par->xsize,par->ysize,xvir,yvir,xpos,ypos);
474 spin_lock(&lcdc_dev->reg_lock);
475 if(likely(lcdc_dev->clk_on))
477 LcdWrReg(lcdc_dev, WIN0_SCL_FACTOR_YRGB, v_X_SCL_FACTOR(ScaleYrgbX) | v_Y_SCL_FACTOR(ScaleYrgbY));
478 LcdWrReg(lcdc_dev, WIN0_SCL_FACTOR_CBR,v_X_SCL_FACTOR(ScaleCbrX)| v_Y_SCL_FACTOR(ScaleCbrY));
479 LcdMskReg(lcdc_dev, SYS_CFG, m_W0_FORMAT, v_W0_FORMAT(par->format)); //(inf->video_mode==0)
480 LcdWrReg(lcdc_dev, WIN0_ACT_INFO,v_ACT_WIDTH(xact) | v_ACT_HEIGHT(yact));
481 LcdWrReg(lcdc_dev, WIN0_DSP_ST, v_DSP_STX(xpos) | v_DSP_STY(ypos));
482 LcdWrReg(lcdc_dev, WIN0_DSP_INFO, v_DSP_WIDTH(par->xsize)| v_DSP_HEIGHT(par->ysize));
483 LcdMskReg(lcdc_dev,WIN0_COLOR_KEY_CTRL, m_COLORKEY_EN | m_KEYCOLOR,
484 v_COLORKEY_EN(1) | v_KEYCOLOR(0));
488 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN0_VIR,v_WIN0_ARGB888_VIRWIDTH(xvir));
489 //LcdMskReg(lcdc_dev,SYS_CTRL1,m_W0_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
491 case RGB888: //rgb888
492 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN0_VIR,v_WIN0_RGB888_VIRWIDTH(xvir));
493 //LcdMskReg(lcdc_dev,SYS_CTRL1,m_W0_RGB_RB_SWAP,v_W0_RGB_RB_SWAP(1));
495 case RGB565: //rgb565
496 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN0_VIR,v_WIN0_RGB565_VIRWIDTH(xvir));
500 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN0_VIR,v_WIN0_YUV_VIRWIDTH(xvir));
503 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN0_VIR,v_WIN0_RGB888_VIRWIDTH(xvir));
509 spin_unlock(&lcdc_dev->reg_lock);
515 static int win1_set_par(struct rk2928_lcdc_device *lcdc_dev,rk_screen *screen,
516 struct layer_par *par )
518 u32 xact, yact, xvir, yvir, xpos, ypos;
519 u32 ScaleYrgbX = 0x1000;
520 u32 ScaleYrgbY = 0x1000;
521 u32 ScaleCbrX = 0x1000;
522 u32 ScaleCbrY = 0x1000;
528 xpos = par->xpos+screen->left_margin + screen->hsync_len;
529 ypos = par->ypos+screen->upper_margin + screen->vsync_len;
531 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",
532 __func__,lcdc_dev->id,par->format,xact,yact,par->xsize,par->ysize,xvir,yvir,xpos,ypos);
535 spin_lock(&lcdc_dev->reg_lock);
536 if(likely(lcdc_dev->clk_on))
538 LcdMskReg(lcdc_dev,SYS_CFG, m_W1_FORMAT, v_W1_FORMAT(par->format));
539 LcdWrReg(lcdc_dev, WIN1_DSP_ST,v_DSP_STX(xpos) | v_DSP_STY(ypos));
540 LcdWrReg(lcdc_dev, WIN1_DSP_INFO,v_DSP_WIDTH(par->xsize) | v_DSP_HEIGHT(par->ysize));
541 // enable win1 color key and set the color to black(rgb=0)
542 LcdMskReg(lcdc_dev, WIN1_COLOR_KEY_CTRL, m_COLORKEY_EN | m_KEYCOLOR,v_COLORKEY_EN(1) | v_KEYCOLOR(0));
548 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN1_VIR,v_WIN1_ARGB888_VIRWIDTH(xvir));
549 //LcdMskReg(lcdc_dev,SYS_CTRL1,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
551 case RGB888: //rgb888
552 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN1_VIR,v_WIN1_RGB888_VIRWIDTH(xvir));
553 // LcdMskReg(lcdc_dev,SYS_CTRL1,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
555 case RGB565: //rgb565
556 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN1_VIR,v_WIN1_RGB565_VIRWIDTH(xvir));
559 LcdMskReg(lcdc_dev, WIN_VIR,m_WIN1_VIR,v_WIN1_RGB888_VIRWIDTH(xvir));
564 //LCDC_REG_CFG_DONE();
566 spin_unlock(&lcdc_dev->reg_lock);
570 static int rk2928_lcdc_open(struct rk_lcdc_device_driver *dev_drv,int layer_id,bool open)
572 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
575 win0_open(lcdc_dev,open);
577 else if(layer_id == 1)
579 win1_open(lcdc_dev,open);
585 static int rk2928_lcdc_set_par(struct rk_lcdc_device_driver *dev_drv,int layer_id)
587 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
588 struct layer_par *par = NULL;
589 rk_screen *screen = dev_drv->cur_screen;
590 rk_screen *screen0 = dev_drv->screen0;
596 printk(KERN_ERR "screen is null!\n");
601 par = dev_drv->layer_par[0];
602 win0_set_par(lcdc_dev,screen,par);
606 par = dev_drv->layer_par[1];
607 win1_set_par(lcdc_dev,screen,par);
609 Scl_X = CalScale(screen->x_res - 1,screen0->x_res - 1);
610 Scl_Y = CalScale(screen->y_res - 1 ,screen0->y_res - 1);
611 LcdWrReg(lcdc_dev,SCL_REG1,v_SCL_V_FACTOR(Scl_Y)|v_SCL_H_FACTOR(Scl_X));
616 int rk2928_lcdc_pan_display(struct rk_lcdc_device_driver * dev_drv,int layer_id)
618 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
619 struct layer_par *par = NULL;
620 rk_screen *screen = dev_drv->cur_screen;
625 printk(KERN_ERR "screen is null!\n");
630 par = dev_drv->layer_par[0];
631 win0_display(lcdc_dev,par);
635 par = dev_drv->layer_par[1];
636 win1_display(lcdc_dev,par);
638 if((dev_drv->first_frame)) //this is the first frame of the system ,enable frame start interrupt
640 dev_drv->first_frame = 0;
641 LcdMskReg(lcdc_dev,INT_STATUS,m_FRM_START_INT_CLEAR |m_FRM_START_INT_EN ,
642 v_FRM_START_INT_CLEAR(1) | v_FRM_START_INT_EN(1));
643 LCDC_REG_CFG_DONE(); // write any value to REG_CFG_DONE let config become effective
647 if(dev_drv->num_buf < 3) //3buffer ,no need to wait for sysn
649 spin_lock_irqsave(&dev_drv->cpl_lock,flags);
650 init_completion(&dev_drv->frame_done);
651 spin_unlock_irqrestore(&dev_drv->cpl_lock,flags);
652 timeout = wait_for_completion_timeout(&dev_drv->frame_done,msecs_to_jiffies(dev_drv->cur_screen->ft+5));
653 if(!timeout&&(!dev_drv->frame_done.done))
655 //printk(KERN_ERR "wait for new frame start time out!\n");
663 int rk2928_lcdc_ioctl(struct rk_lcdc_device_driver * dev_drv,unsigned int cmd, unsigned long arg,int layer_id)
665 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
667 void __user *argp = (void __user *)arg;
671 case FBIOGET_PANEL_SIZE: //get panel size
672 panel_size[0] = lcdc_dev->screen->x_res;
673 panel_size[1] = lcdc_dev->screen->y_res;
674 if(copy_to_user(argp, panel_size, 8))
683 static int rk2928_lcdc_get_layer_state(struct rk_lcdc_device_driver *dev_drv,int layer_id)
685 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
686 struct layer_par *par = dev_drv->layer_par[layer_id];
688 spin_lock(&lcdc_dev->reg_lock);
693 par->state = LcdReadBit(lcdc_dev,SYS_CFG,m_W0_EN);
695 else if( layer_id == 1)
697 par->state = LcdReadBit(lcdc_dev,SYS_CFG,m_W1_EN);
700 spin_unlock(&lcdc_dev->reg_lock);
706 /***********************************
708 swap:1 win0 on the top of win1
709 0 win1 on the top of win0
712 ************************************/
713 static int rk2928_lcdc_ovl_mgr(struct rk_lcdc_device_driver *dev_drv,int swap,bool set)
715 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
717 spin_lock(&lcdc_dev->reg_lock);
720 if(set) //set overlay
722 LcdMskReg(lcdc_dev,DSP_CTRL,m_W0W1_POSITION_SWAP,v_W0W1_POSITION_SWAP(swap));
728 ovl = LcdReadBit(lcdc_dev,DSP_CTRL,m_W0W1_POSITION_SWAP);
735 spin_unlock(&lcdc_dev->reg_lock);
739 static int rk2928_lcdc_get_disp_info(struct rk_lcdc_device_driver *dev_drv,int layer_id)
741 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
746 /*******************************************
747 lcdc fps manager,set or get lcdc fps
750 ********************************************/
751 static int rk2928_lcdc_fps_mgr(struct rk_lcdc_device_driver *dev_drv,int fps,bool set)
753 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
754 rk_screen * screen = dev_drv->cur_screen;
761 ft = div_u64(1000000000000llu,fps);
762 dev_drv->pixclock = div_u64(ft,(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
763 (screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len));
764 dotclk = div_u64(1000000000000llu,dev_drv->pixclock);
765 ret = clk_set_rate(lcdc_dev->dclk, dotclk);
768 printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
770 dev_drv->pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
774 ft = (u64)(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
775 (screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len)*
776 (dev_drv->pixclock); // one frame time ,(pico seconds)
777 fps = div64_u64(1000000000000llu,ft);
778 screen->ft = 1000/fps ; //one frame time in ms
783 static int rk2928_fb_layer_remap(struct rk_lcdc_device_driver *dev_drv,
784 enum fb_win_map_order order)
786 mutex_lock(&dev_drv->fb_win_id_mutex);
787 if(order == FB_DEFAULT_ORDER)
789 order = FB0_WIN0_FB1_WIN1_FB2_WIN2;
791 dev_drv->fb2_win_id = order/100;
792 dev_drv->fb1_win_id = (order/10)%10;
793 dev_drv->fb0_win_id = order%10;
794 mutex_unlock(&dev_drv->fb_win_id_mutex);
796 printk("fb0:win%d\nfb1:win%d\nfb2:win%d\n",dev_drv->fb0_win_id,dev_drv->fb1_win_id,
797 dev_drv->fb2_win_id);
802 static int rk2928_fb_get_layer(struct rk_lcdc_device_driver *dev_drv,const char *id)
805 mutex_lock(&dev_drv->fb_win_id_mutex);
806 if(!strcmp(id,"fb0"))
808 layer_id = dev_drv->fb0_win_id;
810 else if(!strcmp(id,"fb1"))
812 layer_id = dev_drv->fb1_win_id;
814 else if(!strcmp(id,"fb2"))
816 layer_id = dev_drv->fb2_win_id;
820 printk(KERN_ERR "%s>>un supported %s\n",__func__,id);
823 mutex_unlock(&dev_drv->fb_win_id_mutex);
828 int rk2928_lcdc_early_suspend(struct rk_lcdc_device_driver *dev_drv)
830 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
832 if(dev_drv->cur_screen->sscreen_set)
833 dev_drv->cur_screen->sscreen_set(dev_drv->cur_screen , 0);
835 spin_lock(&lcdc_dev->reg_lock);
836 if(likely(lcdc_dev->clk_on))
838 lcdc_dev->clk_on = 0;
839 LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
840 LcdSetBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
842 spin_unlock(&lcdc_dev->reg_lock);
844 else //clk already disabled
846 spin_unlock(&lcdc_dev->reg_lock);
852 clk_disable(lcdc_dev->dclk);
853 clk_disable(lcdc_dev->hclk);
854 clk_disable(lcdc_dev->aclk);
855 clk_disable(lcdc_dev->pd);
861 int rk2928_lcdc_early_resume(struct rk_lcdc_device_driver *dev_drv)
863 struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
865 if(!lcdc_dev->clk_on)
867 clk_enable(lcdc_dev->pd);
868 clk_enable(lcdc_dev->hclk);
869 clk_enable(lcdc_dev->dclk);
870 clk_enable(lcdc_dev->aclk);
872 memcpy((u8*)lcdc_dev->preg, (u8*)&lcdc_dev->regbak, 0xc4); //resume reg
874 spin_lock(&lcdc_dev->reg_lock);
875 if(lcdc_dev->atv_layer_cnt)
877 LcdClrBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
880 lcdc_dev->clk_on = 1;
881 spin_unlock(&lcdc_dev->reg_lock);
884 if(dev_drv->cur_screen->sscreen_set)
885 dev_drv->cur_screen->sscreen_set(dev_drv->cur_screen , 1);
890 static irqreturn_t rk2928_lcdc_isr(int irq, void *dev_id)
892 struct rk2928_lcdc_device *lcdc_dev = (struct rk2928_lcdc_device *)dev_id;
894 LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
896 //LcdMskReg(lcdc_dev, INT_STATUS, m_LINE_FLAG_INT_CLEAR, v_LINE_FLAG_INT_CLEAR(1));
898 if(lcdc_dev->driver.num_buf < 3) //three buffer ,no need to wait for sync
900 spin_lock(&(lcdc_dev->driver.cpl_lock));
901 complete(&(lcdc_dev->driver.frame_done));
902 spin_unlock(&(lcdc_dev->driver.cpl_lock));
907 static struct layer_par lcdc_layer[] = {
920 static struct rk_lcdc_device_driver lcdc_driver = {
922 .def_layer_par = lcdc_layer,
923 .num_layer = ARRAY_SIZE(lcdc_layer),
924 .open = rk2928_lcdc_open,
925 .init_lcdc = init_rk2928_lcdc,
926 .ioctl = rk2928_lcdc_ioctl,
927 .suspend = rk2928_lcdc_early_suspend,
928 .resume = rk2928_lcdc_early_resume,
929 .set_par = rk2928_lcdc_set_par,
930 .blank = rk2928_lcdc_blank,
931 .pan_display = rk2928_lcdc_pan_display,
932 .load_screen = rk2928_load_screen,
933 .get_layer_state = rk2928_lcdc_get_layer_state,
934 .ovl_mgr = rk2928_lcdc_ovl_mgr,
935 .get_disp_info = rk2928_lcdc_get_disp_info,
936 .fps_mgr = rk2928_lcdc_fps_mgr,
937 .fb_get_layer = rk2928_fb_get_layer,
938 .fb_layer_remap = rk2928_fb_layer_remap,
941 static int rk2928_lcdc_suspend(struct platform_device *pdev, pm_message_t state)
946 static int rk2928_lcdc_resume(struct platform_device *pdev)
952 #define rk2928_lcdc_suspend NULL
953 #define rk2928_lcdc_resume NULL
956 static int __devinit rk2928_lcdc_probe (struct platform_device *pdev)
958 struct rk2928_lcdc_device *lcdc_dev=NULL;
961 struct rk29fb_info *screen_ctr_info;
962 struct resource *res = NULL;
963 struct resource *mem;
966 /*************Malloc rk2928lcdc_inf and set it to pdev for drvdata**********/
967 lcdc_dev = kzalloc(sizeof(struct rk2928_lcdc_device), GFP_KERNEL);
970 dev_err(&pdev->dev, ">>rk2928 lcdc device kmalloc fail!");
973 platform_set_drvdata(pdev, lcdc_dev);
974 lcdc_dev->id = pdev->id;
975 screen_ctr_info = (struct rk29fb_info * )pdev->dev.platform_data;
976 screen0 = kzalloc(sizeof(rk_screen), GFP_KERNEL); //rk2928 has one lcdc but two outputs
979 dev_err(&pdev->dev, ">>rk2928 lcdc screen1 kmalloc fail!");
983 screen0->lcdc_id = 0; //this id can be changed dynamic
984 screen0->screen_id = 0; //this id is fixed
985 screen1 = kzalloc(sizeof(rk_screen), GFP_KERNEL);
988 dev_err(&pdev->dev, ">>rk2928 lcdc screen1 kmalloc fail!");
992 screen1->lcdc_id = 1;
993 screen1->screen_id = 1;
995 /****************get lcdc0 reg *************************/
996 res = platform_get_resource(pdev, IORESOURCE_MEM,0);
999 dev_err(&pdev->dev, "failed to get io resource for lcdc%d \n",lcdc_dev->id);
1003 lcdc_dev->reg_phy_base = res->start;
1004 lcdc_dev->len = resource_size(res);
1005 mem = request_mem_region(lcdc_dev->reg_phy_base, resource_size(res), pdev->name);
1008 dev_err(&pdev->dev, "failed to request mem region for lcdc%d\n",lcdc_dev->id);
1012 lcdc_dev->reg_vir_base = ioremap(lcdc_dev->reg_phy_base, resource_size(res));
1013 if (lcdc_dev->reg_vir_base == NULL)
1015 dev_err(&pdev->dev, "cannot map IO\n");
1020 lcdc_dev->preg = (LCDC_REG*)lcdc_dev->reg_vir_base;
1021 printk("lcdc%d:reg_phy_base = 0x%08x,reg_vir_base:0x%p\n",pdev->id,lcdc_dev->reg_phy_base, lcdc_dev->preg);
1022 lcdc_dev->driver.dev=&pdev->dev;
1023 lcdc_dev->driver.screen0 = screen0; //direct out put
1024 lcdc_dev->driver.screen1 = screen1; //out put from scale
1025 lcdc_dev->driver.cur_screen = screen0;
1026 lcdc_dev->driver.screen_ctr_info = screen_ctr_info;
1027 spin_lock_init(&lcdc_dev->reg_lock);
1028 lcdc_dev->irq = platform_get_irq(pdev, 0);
1029 if(lcdc_dev->irq < 0)
1031 dev_err(&pdev->dev, "cannot find IRQ\n");
1034 ret = request_irq(lcdc_dev->irq, rk2928_lcdc_isr, IRQF_DISABLED,dev_name(&pdev->dev),lcdc_dev);
1037 dev_err(&pdev->dev, "cannot requeset irq %d - err %d\n", lcdc_dev->irq, ret);
1041 ret = rk_fb_register(&(lcdc_dev->driver),&lcdc_driver,lcdc_dev->id);
1044 printk(KERN_ERR "register fb for lcdc%d failed!\n",lcdc_dev->id);
1047 printk("rk2928 lcdc%d probe ok!\n",lcdc_dev->id);
1052 free_irq(lcdc_dev->irq,lcdc_dev);
1054 iounmap(lcdc_dev->reg_vir_base);
1056 release_mem_region(lcdc_dev->reg_phy_base,resource_size(res));
1060 platform_set_drvdata(pdev, NULL);
1065 static int __devexit rk2928_lcdc_remove(struct platform_device *pdev)
1067 struct rk2928_lcdc_device *lcdc_dev = platform_get_drvdata(pdev);
1068 rk_fb_unregister(&(lcdc_dev->driver));
1069 rk2928_lcdc_deinit(lcdc_dev);
1070 iounmap(lcdc_dev->reg_vir_base);
1071 release_mem_region(lcdc_dev->reg_phy_base,lcdc_dev->len);
1072 kfree(lcdc_dev->screen);
1077 static void rk2928_lcdc_shutdown(struct platform_device *pdev)
1079 struct rk2928_lcdc_device *lcdc_dev = platform_get_drvdata(pdev);
1080 if(lcdc_dev->driver.cur_screen->standby) //standby the screen if necessary
1081 lcdc_dev->driver.cur_screen->standby(1);
1082 if(lcdc_dev->driver.screen_ctr_info->io_disable) //power off the screen if necessary
1083 lcdc_dev->driver.screen_ctr_info->io_disable();
1084 if(lcdc_dev->driver.cur_screen->sscreen_set) //turn off lvds
1085 lcdc_dev->driver.cur_screen->sscreen_set(lcdc_dev->driver.cur_screen , 0);
1086 rk_fb_unregister(&(lcdc_dev->driver));
1087 rk2928_lcdc_deinit(lcdc_dev);
1088 /*iounmap(lcdc_dev->reg_vir_base);
1089 release_mem_region(lcdc_dev->reg_phy_base,lcdc_dev->len);
1090 kfree(lcdc_dev->screen);
1095 static struct platform_driver rk2928lcdc_driver = {
1096 .probe = rk2928_lcdc_probe,
1097 .remove = __devexit_p(rk2928_lcdc_remove),
1099 .name = "rk2928-lcdc",
1100 .owner = THIS_MODULE,
1102 .suspend = rk2928_lcdc_suspend,
1103 .resume = rk2928_lcdc_resume,
1104 .shutdown = rk2928_lcdc_shutdown,
1107 static int __init rk2928_lcdc_init(void)
1109 return platform_driver_register(&rk2928lcdc_driver);
1112 static void __exit rk2928_lcdc_exit(void)
1114 platform_driver_unregister(&rk2928lcdc_driver);
1119 fs_initcall(rk2928_lcdc_init);
1120 module_exit(rk2928_lcdc_exit);