2 * Copyright (C) 2012 ROCKCHIP, Inc.
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4 * This software is licensed under the terms of the GNU General Public
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5 * License version 2, as published by the Free Software Foundation, and
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6 * may be copied, distributed, and modified under those terms.
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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15 #include <linux/kernel.h>
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16 #include <linux/init.h>
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17 #include <linux/module.h>
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18 #include <linux/platform_device.h>
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19 #include <linux/sched.h>
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20 #include <linux/mutex.h>
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21 #include <linux/err.h>
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22 #include <linux/clk.h>
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23 #include <asm/delay.h>
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24 #include <linux/dma-mapping.h>
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25 #include <linux/delay.h>
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27 #include <linux/irq.h>
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28 #include <linux/interrupt.h>
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29 #include <mach/io.h>
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30 #include <mach/irqs.h>
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31 #include <linux/fs.h>
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32 #include <asm/uaccess.h>
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33 #include <linux/firmware.h>
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34 #include <linux/miscdevice.h>
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35 #include <linux/poll.h>
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36 #include <linux/delay.h>
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37 #include <linux/wait.h>
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38 #include <linux/syscalls.h>
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39 #include <linux/timer.h>
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40 #include <linux/time.h>
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41 #include <asm/cacheflush.h>
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42 #include <linux/compiler.h>
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43 #include <linux/slab.h>
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44 #include <linux/fb.h>
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48 #include "rga_reg_info.h"
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49 #include "rga_mmu_info.h"
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50 #include "RGA_API.h"
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54 #define RGA_TEST_TIME 0
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56 #define PRE_SCALE_BUF_SIZE 2048*1024*4
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58 #define RGA_POWER_OFF_DELAY 4*HZ /* 4s */
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59 #define RGA_TIMEOUT_DELAY 2*HZ /* 2s */
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61 #define RGA_MAJOR 255
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63 #define RK30_RGA_PHYS 0x10114000
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64 #define RK30_RGA_SIZE SZ_8K
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65 #define RGA_RESET_TIMEOUT 1000
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67 /* Driver information */
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68 #define DRIVER_DESC "RGA Device Driver"
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69 #define DRIVER_NAME "rga"
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76 struct rga_drvdata {
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77 struct miscdevice miscdev;
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82 struct clk *aclk_rga;
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83 struct clk *hclk_rga;
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85 struct mutex mutex; // mutex
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87 struct delayed_work power_off_work;
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88 bool enable; //clk enable or disable
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89 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
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93 static struct rga_drvdata *drvdata = NULL;
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94 rga_service_info rga_service;
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96 static int rga_blit_async(rga_session *session, struct rga_req *req);
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100 #define RGA_DEBUG 1
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102 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
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103 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
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104 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
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105 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
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107 #define DBG(format, args...)
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108 #define ERR(format, args...)
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109 #define WARNING(format, args...)
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110 #define INFO(format, args...)
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114 static inline void rga_write(u32 b, u32 r)
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116 __raw_writel(b, drvdata->rga_base + r);
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119 static inline u32 rga_read(u32 r)
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121 return __raw_readl(drvdata->rga_base + r);
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124 static void rga_soft_reset(void)
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129 rga_write(1, RGA_SYS_CTRL); //RGA_SYS_CTRL
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131 for(i = 0; i < RGA_RESET_TIMEOUT; i++)
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133 reg = rga_read(RGA_SYS_CTRL) & 1; //RGA_SYS_CTRL
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141 if(i == RGA_RESET_TIMEOUT)
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142 ERR("soft reset timeout.\n");
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145 static void rga_dump(void)
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149 struct rga_reg *reg, *reg_tmp;
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150 rga_session *session, *session_tmp;
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151 struct list_head *next;
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153 running = atomic_read(&rga_service.total_running);
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154 printk("rga total_running %d\n", running);
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156 /* Dump waiting list info */
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157 if (!list_empty(&rga_service.waiting))
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159 next = &rga_service.waiting;
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161 printk("rga_service dump waiting list\n");
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165 reg = list_entry(next->next, struct rga_reg, status_link);
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166 running = atomic_read(®->session->task_running);
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167 num_done = atomic_read(®->session->num_done);
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168 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
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171 while(!list_empty(next));
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174 /* Dump running list info */
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175 if (!list_empty(&rga_service.running))
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177 printk("rga_service dump running list\n");
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179 next = &rga_service.running;
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182 reg = list_entry(next->next, struct rga_reg, status_link);
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183 running = atomic_read(®->session->task_running);
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184 num_done = atomic_read(®->session->num_done);
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185 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
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188 while(!list_empty(next));
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192 list_for_each_entry_safe(session, session_tmp, &rga_service.session, list_session)
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194 printk("session pid %d:\n", session->pid);
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195 running = atomic_read(&session->task_running);
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196 printk("task_running %d\n", running);
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197 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
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199 printk("waiting register set 0x%.8x\n", (unsigned int)reg);
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201 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
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203 printk("running register set 0x%.8x\n", (unsigned int)reg);
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209 static void rga_power_on(void)
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211 //printk("rga_power_on\n");
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212 cancel_delayed_work_sync(&drvdata->power_off_work);
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213 if (drvdata->enable)
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216 clk_enable(drvdata->aclk_rga);
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217 clk_enable(drvdata->hclk_rga);
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219 drvdata->enable = true;
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223 static void rga_power_off(struct work_struct *work)
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227 //printk("rga_power_off\n");
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228 if(!drvdata->enable)
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231 total_running = atomic_read(&rga_service.total_running);
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232 if (total_running) {
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233 pr_alert("power off when %d task running!!\n", total_running);
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235 pr_alert("delay 50 ms for running task\n");
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239 clk_disable(drvdata->aclk_rga);
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240 clk_disable(drvdata->hclk_rga);
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242 drvdata->enable = false;
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246 static int rga_flush(rga_session *session, unsigned long arg)
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248 //printk("rga_get_result %d\n",drvdata->rga_result);
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252 ret = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
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254 if (unlikely(ret < 0)) {
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255 pr_err("pid %d wait task ret %d\n", session->pid, ret);
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256 } else if (0 == ret) {
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257 pr_err("pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
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265 static int rga_get_result(rga_session *session, unsigned long arg)
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267 //printk("rga_get_result %d\n",drvdata->rga_result);
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273 num_done = atomic_read(&session->num_done);
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275 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
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276 printk("copy_to_user failed\n");
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277 ERR("copy_to_user failed\n");
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280 //idle_condition = 1;
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281 //dmac_clean_range((const void*)&idle_condition,(const void*)&idle_condition+4);
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282 //wake_up_interruptible_sync(&blit_wait_queue);
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288 static int rga_check_param(const struct rga_req *req)
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291 /*RGA can support up to 8192*8192 resolution in RGB format,but we limit the image size to 8191*8191 here*/
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292 //check src width and height
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293 if (unlikely((req->src.act_w < 0) || (req->src.act_w > 8191) || (req->src.act_h < 0) || (req->src.act_h > 8191))) {
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294 ERR("invalid source resolution\n");
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298 //check dst width and height
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299 if (unlikely((req->dst.act_w < 0) || (req->dst.act_w > 2048) || (req->dst.act_h < 16) || (req->dst.act_h > 2048))) {
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300 ERR("invalid destination resolution\n");
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305 if(unlikely(req->src.vir_w < req->src.act_w)){
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306 ERR("invalid src_vir_w\n");
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311 if(unlikely(req->dst.vir_w < req->dst.act_w)){
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312 ERR("invalid dst_vir_w\n");
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316 //check src address
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317 if (unlikely(req->src.yrgb_addr == 0))
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319 ERR("could not retrieve src image from memory\n");
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323 //check src address
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324 if (unlikely(req->dst.yrgb_addr == 0))
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326 ERR("could not retrieve dst image from memory\n");
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335 static void rga_copy_reg(struct rga_reg *reg, uint32_t offset)
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341 atomic_add(1, &rga_service.cmd_num);
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342 atomic_add(1, ®->session->task_running);
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344 cmd_buf = (uint32_t *)rga_service.cmd_buff + offset*28;
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345 reg_p = (uint32_t *)reg->cmd_reg;
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347 for(i=0; i<28; i++)
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349 cmd_buf[i] = reg_p[i];
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356 static struct rga_reg * rga_reg_init(rga_session *session, struct rga_req *req)
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358 unsigned long flag;
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360 struct rga_reg *reg = kmalloc(sizeof(struct rga_reg), GFP_KERNEL);
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362 pr_err("kmalloc fail in rga_reg_init\n");
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366 reg->session = session;
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367 INIT_LIST_HEAD(®->session_link);
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368 INIT_LIST_HEAD(®->status_link);
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370 if (req->mmu_info.mmu_en)
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372 ret = rga_set_mmu_info(reg, req);
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375 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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384 RGA_gen_reg_info(req, (uint8_t *)reg->cmd_reg);
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386 spin_lock_irqsave(&rga_service.lock, flag);
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387 list_add_tail(®->status_link, &rga_service.waiting);
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388 list_add_tail(®->session_link, &session->waiting);
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389 spin_unlock_irqrestore(&rga_service.lock, flag);
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394 static struct rga_reg * rga_reg_init_2(rga_session *session, struct rga_req *req0, struct rga_req *req1)
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396 unsigned long flag;
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399 struct rga_reg *reg0, *reg1;
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406 reg0 = kmalloc(sizeof(struct rga_reg), GFP_KERNEL);
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407 if (NULL == reg0) {
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408 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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412 reg1 = kmalloc(sizeof(struct rga_reg), GFP_KERNEL);
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413 if (NULL == reg1) {
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414 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
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418 reg0->session = session;
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419 INIT_LIST_HEAD(®0->session_link);
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420 INIT_LIST_HEAD(®0->status_link);
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422 reg1->session = session;
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423 INIT_LIST_HEAD(®1->session_link);
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424 INIT_LIST_HEAD(®1->status_link);
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426 if(req0->mmu_info.mmu_en)
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428 ret = rga_set_mmu_info(reg0, req0);
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430 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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435 RGA_gen_reg_info(req0, (uint8_t *)reg0->cmd_reg);
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438 if(req1->mmu_info.mmu_en)
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440 ret = rga_set_mmu_info(reg1, req1);
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442 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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447 RGA_gen_reg_info(req1, (uint8_t *)reg1->cmd_reg);
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449 spin_lock_irqsave(&rga_service.lock, flag);
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450 list_add_tail(®0->status_link, &rga_service.waiting);
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451 list_add_tail(®0->session_link, &session->waiting);
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452 list_add_tail(®1->status_link, &rga_service.waiting);
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453 list_add_tail(®1->session_link, &session->waiting);
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454 spin_unlock_irqrestore(&rga_service.lock, flag);
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472 static void rga_reg_deinit(struct rga_reg *reg)
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474 list_del_init(®->session_link);
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475 list_del_init(®->status_link);
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479 static void rga_reg_from_wait_to_run(struct rga_reg *reg)
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481 list_del_init(®->status_link);
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482 list_add_tail(®->status_link, &rga_service.running);
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484 list_del_init(®->session_link);
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485 list_add_tail(®->session_link, ®->session->running);
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488 static void rga_service_session_clear(rga_session *session)
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490 struct rga_reg *reg, *n;
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492 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
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494 rga_reg_deinit(reg);
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497 list_for_each_entry_safe(reg, n, &session->running, session_link)
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499 rga_reg_deinit(reg);
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504 static void rga_try_set_reg(uint32_t num)
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506 unsigned long flag;
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512 printk("rga try set reg cmd num is 0\n");
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518 spin_lock_irqsave(&rga_service.lock, flag);
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519 if (!list_empty(&rga_service.waiting))
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523 struct rga_reg *reg = list_entry(rga_service.waiting.next, struct rga_reg, status_link);
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524 offset = atomic_read(&rga_service.cmd_num);
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525 if((rga_read(RGA_STATUS) & 0x1))
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529 printk("no idel is here \n");
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532 if((atomic_read(&rga_service.cmd_num) <= 0xf) && (atomic_read(&rga_service.int_disable) == 0))
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534 rga_copy_reg(reg, offset);
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535 rga_reg_from_wait_to_run(reg);
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537 dmac_flush_range(&rga_service.cmd_buff[offset*28], &rga_service.cmd_buff[(offset + 1)*28]);
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538 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[offset*28]),
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539 virt_to_phys(&rga_service.cmd_buff[(offset + 1)*28]));
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541 rga_write(0x1<<10, RGA_INT);
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546 printk("CMD_REG num is %.8x\n", offset);
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549 printk("%.8x ", rga_service.cmd_buff[i*4 + 0 + 28*atomic_read(&rga_service.cmd_num)]);
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550 printk("%.8x ", rga_service.cmd_buff[i*4 + 1 + 28*atomic_read(&rga_service.cmd_num)]);
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551 printk("%.8x ", rga_service.cmd_buff[i*4 + 2 + 28*atomic_read(&rga_service.cmd_num)]);
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552 printk("%.8x\n",rga_service.cmd_buff[i*4 + 3 + 28*atomic_read(&rga_service.cmd_num)]);
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557 atomic_set(®->session->done, 0);
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558 rga_write((0x1<<3)|(0x1<<1), RGA_CMD_CTRL);
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560 if(atomic_read(®->int_enable))
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561 atomic_set(&rga_service.int_disable, 1);
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567 rga_copy_reg(reg, 0);
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568 rga_reg_from_wait_to_run(reg);
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570 dmac_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[28]);
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571 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[0]),virt_to_phys(&rga_service.cmd_buff[28]));
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574 * if cmd buf must use mmu
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575 * it should be configured before cmd start
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577 rga_write((2<<4)|0x1, RGA_MMU_CTRL);
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579 rga_write(virt_to_phys(reg->MMU_base)>>2, RGA_MMU_TBL);
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582 rga_write(virt_to_phys(rga_service.cmd_buff) & (~PAGE_MASK), RGA_CMD_ADDR);
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587 p = rga_service.cmd_buff;
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588 printk("CMD_REG\n");
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589 for (i=0; i<7; i++)
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590 printk("%.8x %.8x %.8x %.8x\n", p[i*4+0], p[i*4+1], p[i*4+2], p[i*4+3]);
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595 rga_write(0x1<<2, RGA_SYS_CTRL);
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597 /* All CMD finish int */
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598 rga_write(0x1<<10, RGA_INT);
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602 rga_start = ktime_get();
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606 atomic_set(®->session->done, 0);
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607 rga_write(0x1, RGA_CMD_CTRL);
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613 printk("CMD_READ_BACK_REG\n");
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614 for (i=0; i<7; i++)
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615 printk("%.8x %.8x %.8x %.8x\n", rga_read(0x100 + i*16 + 0),
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616 rga_read(0x100 + i*16 + 4), rga_read(0x100 + i*16 + 8), rga_read(0x100 + i*16 + 12));
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624 spin_unlock_irqrestore(&rga_service.lock, flag);
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629 static int rga_blit_async(rga_session *session, struct rga_req *req)
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633 struct rga_reg *reg;
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634 struct rga_req *req2;
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636 uint32_t saw, sah, daw, dah;
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641 printk("src.yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x\n",
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642 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr);
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643 printk("dst.yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x\n",
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644 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr);
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647 saw = req->src.act_w;
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648 sah = req->src.act_h;
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649 daw = req->dst.act_w;
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650 dah = req->dst.act_h;
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654 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah)))
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656 /* generate 2 cmd for pre scale */
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657 req2 = kmalloc(sizeof(struct rga_req), GFP_KERNEL);
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662 RGA_gen_two_pro(req, req2);
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664 reg = rga_reg_init_2(session, req, req2);
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672 /* check value if legal */
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673 ret = rga_check_param(req);
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674 if(ret == -EINVAL) {
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678 reg = rga_reg_init(session, req);
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686 atomic_set(®->int_enable, 1);
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687 rga_try_set_reg(num);
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701 static int rga_blit_sync(rga_session *session, struct rga_req *req)
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704 int ret_timeout = 0;
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706 struct rga_reg *reg;
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707 struct rga_req *req2;
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709 uint32_t saw, sah, daw, dah;
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711 saw = req->src.act_w;
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712 sah = req->src.act_h;
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713 daw = req->dst.act_w;
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714 dah = req->dst.act_h;
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718 printk("src.yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x\n",
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719 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr);
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720 printk("dst.yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x\n",
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721 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr);
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726 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah)))
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728 /* generate 2 cmd for pre scale */
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730 req2 = kmalloc(sizeof(struct rga_req), GFP_KERNEL);
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735 memset(req2, 0, sizeof(struct rga_req));
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737 RGA_gen_two_pro(req, req2);
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739 reg = rga_reg_init_2(session, req, req2);
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748 /* check value if legal */
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749 ret = rga_check_param(req);
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750 if(ret == -EINVAL) {
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754 reg = rga_reg_init(session, req);
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762 atomic_set(®->int_enable, 1);
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763 rga_try_set_reg(num);
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765 ret_timeout = wait_event_interruptible_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
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766 if (unlikely(ret_timeout< 0))
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768 pr_err("pid %d wait task ret %d\n", session->pid, ret_timeout);
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770 else if (0 == ret_timeout)
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772 pr_err("pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
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777 rga_end = ktime_get();
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778 rga_end = ktime_sub(rga_end, rga_start);
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779 printk("one cmd end time %d\n", (int)ktime_to_us(rga_end));
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795 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
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797 struct rga_req *req;
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799 rga_session *session = (rga_session *)file->private_data;
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802 if (NULL == session)
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804 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
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808 req = (struct rga_req *)kmalloc(sizeof(struct rga_req), GFP_KERNEL);
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811 printk("%s [%d] get rga_req mem failed\n",__FUNCTION__,__LINE__);
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817 case RGA_BLIT_SYNC:
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818 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
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820 ERR("copy_from_user failed\n");
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823 ret = rga_blit_sync(session, req);
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825 case RGA_BLIT_ASYNC:
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826 if (unlikely(copy_from_user(req, (struct rga_req*)arg, sizeof(struct rga_req))))
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828 ERR("copy_from_user failed\n");
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831 ret = rga_blit_async(session, req);
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834 ret = rga_flush(session, arg);
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836 case RGA_GET_RESULT:
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837 ret = rga_get_result(session, arg);
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839 ERR("unknown ioctl cmd!\n");
\r
851 static int rga_open(struct inode *inode, struct file *file)
\r
853 rga_session *session = (rga_session *)kmalloc(sizeof(rga_session), GFP_KERNEL);
\r
854 if (NULL == session) {
\r
855 pr_err("unable to allocate memory for rga_session.");
\r
859 session->pid = current->pid;
\r
860 INIT_LIST_HEAD(&session->waiting);
\r
861 INIT_LIST_HEAD(&session->running);
\r
862 INIT_LIST_HEAD(&session->list_session);
\r
863 init_waitqueue_head(&session->wait);
\r
864 /* no need to protect */
\r
865 list_add_tail(&session->list_session, &rga_service.session);
\r
866 atomic_set(&session->task_running, 0);
\r
867 atomic_set(&session->num_done, 0);
\r
868 file->private_data = (void *)session;
\r
870 DBG("*** rga dev opened *** \n");
\r
871 return nonseekable_open(inode, file);
\r
875 static int rga_release(struct inode *inode, struct file *file)
\r
878 unsigned long flag;
\r
879 rga_session *session = (rga_session *)file->private_data;
\r
880 if (NULL == session)
\r
883 task_running = atomic_read(&session->task_running);
\r
885 while (task_running)
\r
887 pr_err("rga_service session %d still has %d task running when closing\n", session->pid, task_running);
\r
892 wake_up_interruptible_sync(&session->wait);
\r
893 spin_lock_irqsave(&rga_service.lock, flag);
\r
894 list_del(&session->list_session);
\r
895 rga_service_session_clear(session);
\r
897 spin_unlock_irqrestore(&rga_service.lock, flag);
\r
899 pr_debug("dev closed\n");
\r
903 static irqreturn_t rga_irq(int irq, void *dev_id)
\r
905 struct rga_reg *reg;
\r
907 struct list_head *next;
\r
908 int int_enable = 0;
\r
910 DBG("rga_irq %d \n", irq);
\r
913 printk("rga_irq is valid\n");
\r
917 rga_write(rga_read(RGA_INT) | (0x1<<6), RGA_INT);
\r
918 rga_write(rga_read(RGA_INT) | (0x1<<7), RGA_INT);
\r
920 if(((rga_read(RGA_STATUS) & 0x1) != 0))// idle
\r
922 printk(" INT ERROR RGA is not idle!\n");
\r
926 spin_lock(&rga_service.lock);
\r
929 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
\r
931 if(reg->MMU_base != NULL)
\r
933 kfree(reg->MMU_base);
\r
936 atomic_sub(1, ®->session->task_running);
\r
937 atomic_sub(1, &rga_service.total_running);
\r
939 if(list_empty(®->session->waiting))
\r
941 atomic_set(®->session->done, 1);
\r
942 wake_up_interruptible_sync(®->session->wait);
\r
945 rga_reg_deinit(reg);
\r
948 while(!list_empty(&rga_service.running));
\r
950 atomic_set(&rga_service.cmd_num, 0);
\r
952 spin_unlock(&rga_service.lock);
\r
954 next = &rga_service.waiting;
\r
956 /* add cmd to cmd buf */
\r
957 while((!list_empty(next)) && ((int_enable) == 0) && (num <= 0xf))
\r
960 reg = list_entry(next->next, struct rga_reg, status_link);
\r
961 int_enable = atomic_read(®->int_enable);
\r
965 rga_try_set_reg(num);
\r
967 return IRQ_HANDLED;
\r
970 static int rga_suspend(struct platform_device *pdev, pm_message_t state)
\r
974 enable = drvdata->enable;
\r
975 //rga_power_off(NULL);
\r
976 drvdata->enable = enable;
\r
981 static int rga_resume(struct platform_device *pdev)
\r
987 static void rga_shutdown(struct platform_device *pdev)
\r
989 pr_cont("shutdown...");
\r
990 //rga_power_off(NULL);
\r
996 struct file_operations rga_fops = {
\r
997 .owner = THIS_MODULE,
\r
999 .release = rga_release,
\r
1000 .unlocked_ioctl = rga_ioctl,
\r
1003 static struct miscdevice rga_dev ={
\r
1004 .minor = RGA_MAJOR,
\r
1006 .fops = &rga_fops,
\r
1009 static int __devinit rga_drv_probe(struct platform_device *pdev)
\r
1011 struct rga_drvdata *data;
\r
1014 data = kmalloc(sizeof(struct rga_drvdata), GFP_KERNEL);
\r
1016 INIT_LIST_HEAD(&rga_service.waiting);
\r
1017 INIT_LIST_HEAD(&rga_service.running);
\r
1018 INIT_LIST_HEAD(&rga_service.done);
\r
1019 INIT_LIST_HEAD(&rga_service.session);
\r
1020 spin_lock_init(&rga_service.lock);
\r
1021 atomic_set(&rga_service.total_running, 0);
\r
1022 rga_service.enabled = false;
\r
1026 ERR("failed to allocate driver data.\n");
\r
1031 /* get the clock */
\r
1032 data->pd_display = clk_get(&pdev->dev, "pd_display");
\r
1033 if (IS_ERR(data->pd_display))
\r
1035 ERR("failed to find rga pd_display source\n");
\r
1040 data->aclk_lcdc = clk_get(&pdev->dev, "aclk_lcdc");
\r
1041 if (IS_ERR(data->aclk_lcdc))
\r
1043 ERR("failed to find rga aclk_lcdc source\n");
\r
1048 data->hclk_lcdc = clk_get(&pdev->dev, "hclk_lcdc");
\r
1049 if (IS_ERR(data->hclk_lcdc))
\r
1051 ERR("failed to find rga hclk_lcdc source\n");
\r
1056 data->aclk_ddr_lcdc = clk_get(&pdev->dev, "aclk_ddr_lcdc");
\r
1057 if (IS_ERR(data->aclk_ddr_lcdc))
\r
1059 ERR("failed to find rga aclk_ddr_lcdc source\n");
\r
1064 data->hclk_cpu_display = clk_get(&pdev->dev, "hclk_cpu_display");
\r
1065 if (IS_ERR(data->hclk_cpu_display))
\r
1067 ERR("failed to find rga hclk_cpu_display source\n");
\r
1072 data->aclk_disp_matrix = clk_get(&pdev->dev, "aclk_disp_matrix");
\r
1073 if (IS_ERR(data->aclk_disp_matrix))
\r
1075 ERR("failed to find rga aclk_disp_matrix source\n");
\r
1080 data->hclk_disp_matrix = clk_get(&pdev->dev, "hclk_disp_matrix");
\r
1081 if (IS_ERR(data->hclk_disp_matrix))
\r
1083 ERR("failed to find rga hclk_disp_matrix source\n");
\r
1090 data->aclk_rga = clk_get(NULL, "aclk_rga");
\r
1091 if (IS_ERR(data->aclk_rga))
\r
1093 ERR("failed to find rga axi clock source\n");
\r
1098 data->hclk_rga = clk_get(NULL, "hclk_rga");
\r
1099 if (IS_ERR(data->hclk_rga))
\r
1101 ERR("failed to find rga ahb clock source\n");
\r
1106 /* map the memory */
\r
1107 if (!request_mem_region(RK30_RGA_PHYS, RK30_RGA_SIZE, "rga_io"))
\r
1109 pr_info("failed to reserve rga HW regs\n");
\r
1112 data->rga_base = (void*)ioremap_nocache(RK30_RGA_PHYS, RK30_RGA_SIZE);
\r
1113 if (data->rga_base == NULL)
\r
1115 ERR("rga ioremap failed\n");
\r
1121 data->irq0 = pdev->resource[1].start;
\r
1122 printk("rga irq %d\n", data->irq0);
\r
1123 if (data->irq0 <= 0)
\r
1125 ERR("failed to get rga irq resource (%d).\n", data->irq0);
\r
1130 /* request the IRQ */
\r
1131 ret = request_irq(data->irq0, rga_irq, 0/*IRQF_DISABLED*/, "rga", pdev);
\r
1134 ERR("rga request_irq failed (%d).\n", ret);
\r
1138 mutex_init(&data->mutex);
\r
1139 data->enable = false;
\r
1140 INIT_DELAYED_WORK(&data->power_off_work, rga_power_off);
\r
1141 data->rga_irq_callback = NULL;
\r
1143 platform_set_drvdata(pdev, data);
\r
1146 ret = misc_register(&rga_dev);
\r
1149 ERR("cannot register miscdev (%d)\n", ret);
\r
1150 goto err_misc_register;
\r
1152 DBG("RGA Driver loaded succesfully\n");
\r
1156 err_misc_register:
\r
1157 free_irq(data->irq0, pdev);
\r
1159 iounmap(data->rga_base);
\r
1167 static int rga_drv_remove(struct platform_device *pdev)
\r
1169 struct rga_drvdata *data = platform_get_drvdata(pdev);
\r
1170 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
\r
1172 misc_deregister(&(data->miscdev));
\r
1173 free_irq(data->irq0, &data->miscdev);
\r
1174 iounmap((void __iomem *)(data->rga_base));
\r
1177 if(data->axi_clk) {
\r
1178 clk_put(data->axi_clk);
\r
1181 if(data->ahb_clk) {
\r
1182 clk_put(data->ahb_clk);
\r
1185 if(data->aclk_disp_matrix) {
\r
1186 clk_put(data->aclk_disp_matrix);
\r
1189 if(data->hclk_disp_matrix) {
\r
1190 clk_put(data->hclk_disp_matrix);
\r
1195 if(data->aclk_lcdc) {
\r
1196 clk_put(data->aclk_lcdc);
\r
1199 if(data->hclk_cpu_display) {
\r
1200 clk_put(data->hclk_cpu_display);
\r
1203 if(data->pd_display){
\r
1204 clk_put(data->pd_display);
\r
1208 if(data->aclk_rga) {
\r
1209 clk_put(data->aclk_rga);
\r
1212 if(data->hclk_rga) {
\r
1213 clk_put(data->hclk_rga);
\r
1220 static struct platform_driver rga_driver = {
\r
1221 .probe = rga_drv_probe,
\r
1222 .remove = __devexit_p(rga_drv_remove),
\r
1223 .suspend = rga_suspend,
\r
1224 .resume = rga_resume,
\r
1225 .shutdown = rga_shutdown,
\r
1227 .owner = THIS_MODULE,
\r
1233 void rga_test_0(void);
\r
1236 static int __init rga_init(void)
\r
1239 uint32_t *mmu_buf;
\r
1243 /* malloc pre scale mid buf mmu table */
\r
1244 mmu_buf = (uint32_t *)kmalloc(1024*8, GFP_KERNEL);
\r
1245 if(mmu_buf == NULL)
\r
1247 printk(KERN_ERR "RGA get Pre Scale buff failed. \n");
\r
1251 /* malloc 8 M buf */
\r
1252 for(i=0; i<2048; i++)
\r
1254 buf_p = (uint32_t *)__get_free_page(GFP_KERNEL);
\r
1257 printk(KERN_ERR "RGA init pre scale buf falied\n");
\r
1261 mmu_buf[i] = virt_to_phys((void *)((uint32_t)buf_p));
\r
1264 rga_service.pre_scale_buf = (uint32_t *)mmu_buf;
\r
1266 if ((ret = platform_driver_register(&rga_driver)) != 0)
\r
1268 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
\r
1274 INFO("Module initialized.\n");
\r
1279 static void __exit rga_exit(void)
\r
1283 for(i=0; i<2048; i++)
\r
1285 if((uint32_t *)rga_service.pre_scale_buf[i] != NULL)
\r
1287 __free_page((void *)rga_service.pre_scale_buf[i]);
\r
1291 if(rga_service.pre_scale_buf != NULL) {
\r
1292 kfree((uint8_t *)rga_service.pre_scale_buf);
\r
1294 platform_driver_unregister(&rga_driver);
\r
1300 #include "320x240_swap0_Y4200.h"
\r
1301 #include "320x240_swap0_UV4200.h"
\r
1302 #include "320x240_swap0_ABGR8888.h"
\r
1305 extern struct fb_info * rk_get_fb(int fb_id);
\r
1306 EXPORT_SYMBOL(rk_get_fb);
\r
1308 extern void rk_direct_fb_show(struct fb_info * fbi);
\r
1309 EXPORT_SYMBOL(rk_direct_fb_show);
\r
1311 unsigned int dst_buf[1280*800];
\r
1313 void rga_test_0(void)
\r
1315 struct rga_req req;
\r
1316 rga_session session;
\r
1317 unsigned int *src, *dst;
\r
1319 struct fb_info *fb;
\r
1321 session.pid = current->pid;
\r
1322 INIT_LIST_HEAD(&session.waiting);
\r
1323 INIT_LIST_HEAD(&session.running);
\r
1324 INIT_LIST_HEAD(&session.list_session);
\r
1325 init_waitqueue_head(&session.wait);
\r
1326 /* no need to protect */
\r
1327 list_add_tail(&session.list_session, &rga_service.session);
\r
1328 atomic_set(&session.task_running, 0);
\r
1329 atomic_set(&session.num_done, 0);
\r
1330 //file->private_data = (void *)session;
\r
1332 fb = rk_get_fb(0);
\r
1334 memset(&req, 0, sizeof(struct rga_req));
\r
1335 src = Y4200_320_240_swap0;
\r
1339 memset(src_buf, 0x80, 800*480*4);
\r
1340 memset(dst_buf, 0xcc, 800*480*4);
\r
1342 dmac_flush_range(&src_buf[0], &src_buf[800*480]);
\r
1343 outer_flush_range(virt_to_phys(&src_buf[0]),virt_to_phys(&src_buf[800*480]));
\r
1345 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
\r
1346 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
\r
1349 req.src.act_w = 320;
\r
1350 req.src.act_h = 240;
\r
1352 req.src.vir_w = 320;
\r
1353 req.src.vir_h = 240;
\r
1354 req.src.yrgb_addr = (uint32_t)src;
\r
1355 req.src.uv_addr = (uint32_t)UV4200_320_240_swap0;
\r
1356 req.src.format = 0xa;
\r
1358 req.dst.act_w = 100;
\r
1359 req.dst.act_h = 80;
\r
1361 req.dst.vir_w = 1280;
\r
1362 req.dst.vir_h = 800;
\r
1363 req.dst.x_offset = 0;
\r
1364 req.dst.y_offset = 000;
\r
1365 req.dst.yrgb_addr = (uint32_t)dst;
\r
1367 req.clip.xmin = 0;
\r
1368 req.clip.xmax = 1279;
\r
1369 req.clip.ymin = 0;
\r
1370 req.clip.ymax = 799;
\r
1372 req.rotate_mode = 1;
\r
1373 req.scale_mode = 2;
\r
1375 req.alpha_rop_flag = 0;
\r
1378 req.cosa = 0x10000;
\r
1380 req.mmu_info.mmu_flag = 0x21;
\r
1381 req.mmu_info.mmu_en = 1;
\r
1383 rga_blit_sync(&session, &req);
\r
1385 fb->var.bits_per_pixel = 32;
\r
1387 fb->var.xres = 1280;
\r
1388 fb->var.yres = 800;
\r
1390 fb->var.red.length = 8;
\r
1391 fb->var.red.offset = 0;
\r
1392 fb->var.red.msb_right = 0;
\r
1394 fb->var.green.length = 8;
\r
1395 fb->var.green.offset = 8;
\r
1396 fb->var.green.msb_right = 0;
\r
1398 fb->var.blue.length = 8;
\r
1399 fb->var.blue.offset = 16;
\r
1400 fb->var.blue.msb_right = 0;
\r
1402 fb->var.transp.length = 8;
\r
1403 fb->var.transp.offset = 24;
\r
1404 fb->var.transp.msb_right = 0;
\r
1406 fb->var.nonstd &= (~0xff);
\r
1407 fb->var.nonstd |= 1;
\r
1409 fb->fix.smem_start = virt_to_phys(dst);
\r
1411 rk_direct_fb_show(fb);
\r
1416 module_init(rga_init);
\r
1417 module_exit(rga_exit);
\r
1419 /* Module information */
\r
1420 MODULE_AUTHOR("zsq@rock-chips.com");
\r
1421 MODULE_DESCRIPTION("Driver for rga device");
\r
1422 MODULE_LICENSE("GPL");
\r