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 #define pr_fmt(fmt) "rga: " fmt
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16 #include <linux/kernel.h>
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17 #include <linux/init.h>
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18 #include <linux/module.h>
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19 #include <linux/platform_device.h>
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20 #include <linux/sched.h>
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21 #include <linux/mutex.h>
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22 #include <linux/err.h>
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23 #include <linux/clk.h>
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24 #include <asm/delay.h>
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25 #include <linux/dma-mapping.h>
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26 #include <linux/delay.h>
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28 #include <linux/irq.h>
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29 #include <linux/interrupt.h>
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30 //#include <mach/io.h>
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31 //#include <mach/irqs.h>
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32 #include <linux/fs.h>
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33 #include <asm/uaccess.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/slab.h>
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43 #include <linux/fb.h>
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44 #include <linux/wakelock.h>
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46 #if defined(CONFIG_ION_ROCKCHIP)
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47 #include <linux/rockchip_ion.h>
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52 #include "rga_reg_info.h"
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53 #include "rga_mmu_info.h"
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54 #include "RGA_API.h"
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56 #define RGA_TEST_CASE 0
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59 #define RGA_TEST_TIME 0
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60 #define RGA_TEST_FLUSH_TIME 0
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61 #define RGA_INFO_BUS_ERROR 1
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63 #define PRE_SCALE_BUF_SIZE 2048*1024*4
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65 #define RGA_POWER_OFF_DELAY 4*HZ /* 4s */
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66 #define RGA_TIMEOUT_DELAY 2*HZ /* 2s */
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68 #define RGA_MAJOR 255
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70 #if defined(CONFIG_ARCH_RK2928) || defined(CONFIG_ARCH_RK3026)
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71 #define RK30_RGA_PHYS RK2928_RGA_PHYS
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72 #define RK30_RGA_SIZE RK2928_RGA_SIZE
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74 #define RGA_RESET_TIMEOUT 1000
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76 /* Driver information */
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77 #define DRIVER_DESC "RGA Device Driver"
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78 #define DRIVER_NAME "rga"
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80 #define RGA_VERSION "1.003"
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85 rga_session rga_session_global;
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87 long (*rga_ioctl_kernel_p)(struct rga_req *);
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90 struct rga_drvdata {
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91 struct miscdevice miscdev;
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96 struct delayed_work power_off_work;
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97 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
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98 struct wake_lock wake_lock;
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100 struct clk *pd_rga;
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101 struct clk *aclk_rga;
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102 struct clk *hclk_rga;
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104 //#if defined(CONFIG_ION_ROCKCHIP)
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105 struct ion_client * ion_client;
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109 static struct rga_drvdata *drvdata;
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110 rga_service_info rga_service;
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111 struct rga_mmu_buf_t rga_mmu_buf;
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114 #if defined(CONFIG_ION_ROCKCHIP)
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115 extern struct ion_client *rockchip_ion_client_create(const char * name);
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118 static int rga_blit_async(rga_session *session, struct rga_req *req);
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119 static void rga_del_running_list(void);
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120 static void rga_del_running_list_timeout(void);
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121 static void rga_try_set_reg(void);
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125 #define RGA_DEBUG 1
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127 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
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128 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
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129 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
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130 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
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132 #define DBG(format, args...)
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133 #define ERR(format, args...)
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134 #define WARNING(format, args...)
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135 #define INFO(format, args...)
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139 static void print_info(struct rga_req *req)
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141 printk("src : yrgb_addr = %.8x, src.uv_addr = %.8x, src.v_addr = %.8x, format = %d\n",
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142 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr, req->src.format);
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143 printk("src : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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144 req->src.act_w, req->src.act_h, req->src.vir_w, req->src.vir_h);
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145 printk("src : x_off = %.8x y_off = %.8x\n", req->src.x_offset, req->src.y_offset);
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147 printk("dst : yrgb_addr = %.8x, dst.uv_addr = %.8x, dst.v_addr = %.8x, format = %d\n",
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148 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr, req->dst.format);
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149 printk("dst : x_off = %.8x y_off = %.8x\n", req->dst.x_offset, req->dst.y_offset);
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150 printk("dst : act_w = %d, act_h = %d, vir_w = %d, vir_h = %d\n",
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151 req->dst.act_w, req->dst.act_h, req->dst.vir_w, req->dst.vir_h);
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153 printk("clip.xmin = %d, clip.xmax = %d. clip.ymin = %d, clip.ymax = %d\n",
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154 req->clip.xmin, req->clip.xmax, req->clip.ymin, req->clip.ymax);
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156 printk("mmu_flag = %.8x\n", req->mmu_info.mmu_flag);
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158 //printk("alpha_rop_flag = %.8x\n", req->alpha_rop_flag);
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159 //printk("alpha_rop_mode = %.8x\n", req->alpha_rop_mode);
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160 //printk("PD_mode = %.8x\n", req->PD_mode);
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165 static inline void rga_write(u32 b, u32 r)
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167 __raw_writel(b, drvdata->rga_base + r);
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170 static inline u32 rga_read(u32 r)
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172 return __raw_readl(drvdata->rga_base + r);
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175 static void rga_soft_reset(void)
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180 rga_write(1, RGA_SYS_CTRL); //RGA_SYS_CTRL
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182 for(i = 0; i < RGA_RESET_TIMEOUT; i++)
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184 reg = rga_read(RGA_SYS_CTRL) & 1; //RGA_SYS_CTRL
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192 if(i == RGA_RESET_TIMEOUT)
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193 ERR("soft reset timeout.\n");
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196 static void rga_dump(void)
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199 struct rga_reg *reg, *reg_tmp;
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200 rga_session *session, *session_tmp;
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202 running = atomic_read(&rga_service.total_running);
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203 printk("rga total_running %d\n", running);
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207 /* Dump waiting list info */
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208 if (!list_empty(&rga_service.waiting))
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212 next = &rga_service.waiting;
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214 printk("rga_service dump waiting list\n");
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218 reg = list_entry(next->next, struct rga_reg, status_link);
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219 running = atomic_read(®->session->task_running);
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220 num_done = atomic_read(®->session->num_done);
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221 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
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224 while(!list_empty(next));
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227 /* Dump running list info */
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228 if (!list_empty(&rga_service.running))
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230 printk("rga_service dump running list\n");
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234 next = &rga_service.running;
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237 reg = list_entry(next->next, struct rga_reg, status_link);
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238 running = atomic_read(®->session->task_running);
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239 num_done = atomic_read(®->session->num_done);
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240 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
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243 while(!list_empty(next));
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247 list_for_each_entry_safe(session, session_tmp, &rga_service.session, list_session)
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249 printk("session pid %d:\n", session->pid);
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250 running = atomic_read(&session->task_running);
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251 printk("task_running %d\n", running);
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252 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
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254 printk("waiting register set 0x%.lu\n", (unsigned long)reg);
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256 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
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258 printk("running register set 0x%.lu\n", (unsigned long)reg);
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263 static inline void rga_queue_power_off_work(void)
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265 queue_delayed_work(system_nrt_wq, &drvdata->power_off_work, RGA_POWER_OFF_DELAY);
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268 /* Caller must hold rga_service.lock */
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269 static void rga_power_on(void)
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271 static ktime_t last;
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272 ktime_t now = ktime_get();
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274 if (ktime_to_ns(ktime_sub(now, last)) > NSEC_PER_SEC) {
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275 cancel_delayed_work_sync(&drvdata->power_off_work);
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276 rga_queue_power_off_work();
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279 if (rga_service.enable)
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282 clk_prepare_enable(drvdata->aclk_rga);
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283 clk_prepare_enable(drvdata->hclk_rga);
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284 //clk_prepare_enable(drvdata->pd_rga);
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285 wake_lock(&drvdata->wake_lock);
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286 rga_service.enable = true;
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289 /* Caller must hold rga_service.lock */
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290 static void rga_power_off(void)
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294 if (!rga_service.enable) {
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298 total_running = atomic_read(&rga_service.total_running);
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299 if (total_running) {
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300 pr_err("power off when %d task running!!\n", total_running);
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302 pr_err("delay 50 ms for running task\n");
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306 //clk_disable_unprepare(drvdata->pd_rga);
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307 clk_disable_unprepare(drvdata->aclk_rga);
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308 clk_disable_unprepare(drvdata->hclk_rga);
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309 wake_unlock(&drvdata->wake_lock);
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310 rga_service.enable = false;
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313 static void rga_power_off_work(struct work_struct *work)
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315 if (mutex_trylock(&rga_service.lock)) {
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317 mutex_unlock(&rga_service.lock);
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319 /* Come back later if the device is busy... */
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321 rga_queue_power_off_work();
325 static int rga_flush(rga_session *session, unsigned long arg)
330 #if RGA_TEST_FLUSH_TIME
336 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
338 if (unlikely(ret_timeout < 0)) {
339 //pr_err("flush pid %d wait task ret %d\n", session->pid, ret);
340 mutex_lock(&rga_service.lock);
341 rga_del_running_list();
342 mutex_unlock(&rga_service.lock);
344 } else if (0 == ret_timeout) {
345 //pr_err("flush pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
346 //printk("bus = %.8x\n", rga_read(RGA_INT));
347 mutex_lock(&rga_service.lock);
348 rga_del_running_list_timeout();
350 mutex_unlock(&rga_service.lock);
354 #if RGA_TEST_FLUSH_TIME
356 end = ktime_sub(end, start);
357 printk("one flush wait time %d\n", (int)ktime_to_us(end));
364 static int rga_get_result(rga_session *session, unsigned long arg)
366 //printk("rga_get_result %d\n",drvdata->rga_result);
372 num_done = atomic_read(&session->num_done);
374 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
375 printk("copy_to_user failed\n");
382 static int rga_check_param(const struct rga_req *req)
384 /*RGA can support up to 8192*8192 resolution in RGB format,but we limit the image size to 8191*8191 here*/
385 //check src width and height
387 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
389 if (unlikely((req->src.act_w <= 0) || (req->src.act_w > 8191) || (req->src.act_h <= 0) || (req->src.act_h > 8191)))
391 printk("invalid source resolution act_w = %d, act_h = %d\n", req->src.act_w, req->src.act_h);
396 if(!((req->render_mode == color_fill_mode) || (req->render_mode == line_point_drawing_mode)))
398 if (unlikely((req->src.vir_w <= 0) || (req->src.vir_w > 8191) || (req->src.vir_h <= 0) || (req->src.vir_h > 8191)))
400 printk("invalid source resolution vir_w = %d, vir_h = %d\n", req->src.vir_w, req->src.vir_h);
405 //check dst width and height
406 if (unlikely((req->dst.act_w <= 0) || (req->dst.act_w > 2048) || (req->dst.act_h <= 0) || (req->dst.act_h > 2048)))
408 printk("invalid destination resolution act_w = %d, act_h = %d\n", req->dst.act_w, req->dst.act_h);
412 if (unlikely((req->dst.vir_w <= 0) || (req->dst.vir_w > 4096) || (req->dst.vir_h <= 0) || (req->dst.vir_h > 2048)))
414 printk("invalid destination resolution vir_w = %d, vir_h = %d\n", req->dst.vir_w, req->dst.vir_h);
419 if(unlikely(req->src.vir_w < req->src.act_w)){
420 printk("invalid src_vir_w act_w = %d, vir_w = %d\n", req->src.act_w, req->src.vir_w);
425 if(unlikely(req->dst.vir_w < req->dst.act_w)){
426 if(req->rotate_mode != 1)
428 printk("invalid dst_vir_w act_h = %d, vir_h = %d\n", req->dst.act_w, req->dst.vir_w);
436 static void rga_copy_reg(struct rga_reg *reg, uint32_t offset)
442 if(atomic_read(®->session->task_running) != 0)
444 printk(KERN_ERR "task_running is no zero\n");
447 atomic_add(1, &rga_service.cmd_num);
448 atomic_add(1, ®->session->task_running);
450 cmd_buf = (uint32_t *)rga_service.cmd_buff + offset*32;
451 reg_p = (uint32_t *)reg->cmd_reg;
453 for(i=0; i<32; i++)
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454 cmd_buf[i] = reg_p[i];
459 static struct rga_reg * rga_reg_init(rga_session *session, struct rga_req *req)
462 struct rga_reg *reg = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
464 pr_err("kmalloc fail in rga_reg_init\n");
468 reg->session = session;
469 INIT_LIST_HEAD(®->session_link);
470 INIT_LIST_HEAD(®->status_link);
472 reg->MMU_base = NULL;
474 if (req->mmu_info.mmu_en)
476 ret = rga_set_mmu_info(reg, req);
479 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
488 if(RGA_gen_reg_info(req, (uint8_t *)reg->cmd_reg) == -1)
490 printk("gen reg info error\n");
498 mutex_lock(&rga_service.lock);
499 list_add_tail(®->status_link, &rga_service.waiting);
500 list_add_tail(®->session_link, &session->waiting);
501 mutex_unlock(&rga_service.lock);
506 static struct rga_reg * rga_reg_init_2(rga_session *session, struct rga_req *req0, struct rga_req *req1)
510 struct rga_reg *reg0, *reg1;
517 reg0 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
519 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
523 reg1 = kzalloc(sizeof(struct rga_reg), GFP_KERNEL);
525 pr_err("%s [%d] kmalloc fail in rga_reg_init\n", __FUNCTION__, __LINE__);
529 reg0->session = session;
530 INIT_LIST_HEAD(®0->session_link);
531 INIT_LIST_HEAD(®0->status_link);
533 reg1->session = session;
534 INIT_LIST_HEAD(®1->session_link);
535 INIT_LIST_HEAD(®1->status_link);
537 req0->mmu_info.mmu_flag &= (~(1 << 10));
539 if(req0->mmu_info.mmu_en)
541 ret = rga_set_mmu_info(reg0, req0);
543 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
548 RGA_gen_reg_info(req0, (uint8_t *)reg0->cmd_reg);
550 req1->mmu_info.mmu_flag &= (~(1 << 8));
552 if(req1->mmu_info.mmu_en)
554 ret = rga_set_mmu_info(reg1, req1);
556 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
561 RGA_gen_reg_info(req1, (uint8_t *)reg1->cmd_reg);
563 mutex_lock(&rga_service.lock);
564 list_add_tail(®0->status_link, &rga_service.waiting);
565 list_add_tail(®0->session_link, &session->waiting);
566 list_add_tail(®1->status_link, &rga_service.waiting);
567 list_add_tail(®1->session_link, &session->waiting);
568 mutex_unlock(&rga_service.lock);
585 /* Caller must hold rga_service.lock */
586 static void rga_reg_deinit(struct rga_reg *reg)
588 list_del_init(®->session_link);
589 list_del_init(®->status_link);
593 /* Caller must hold rga_service.lock */
594 static void rga_reg_from_wait_to_run(struct rga_reg *reg)
596 list_del_init(®->status_link);
597 list_add_tail(®->status_link, &rga_service.running);
599 list_del_init(®->session_link);
600 list_add_tail(®->session_link, ®->session->running);
603 /* Caller must hold rga_service.lock */
604 static void rga_service_session_clear(rga_session *session)
606 struct rga_reg *reg, *n;
608 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
613 list_for_each_entry_safe(reg, n, &session->running, session_link)
619 /* Caller must hold rga_service.lock */
620 static void rga_try_set_reg(void)
622 struct rga_reg *reg ;
624 if (list_empty(&rga_service.running))
626 if (!list_empty(&rga_service.waiting))
629 reg = list_entry(rga_service.waiting.next, struct rga_reg, status_link);
634 rga_copy_reg(reg, 0);
635 rga_reg_from_wait_to_run(reg);
638 dmac_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[32]);
639 outer_flush_range(virt_to_phys(&rga_service.cmd_buff[0]),virt_to_phys(&rga_service.cmd_buff[32]));
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640 #elif defined(CONFIG_ARM64)
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641 __dma_flush_range(&rga_service.cmd_buff[0], &rga_service.cmd_buff[32]);
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646 rga_write(0x0, RGA_SYS_CTRL);
647 rga_write(0, RGA_MMU_CTRL);
650 rga_write(virt_to_phys(rga_service.cmd_buff), RGA_CMD_ADDR);
654 //printk(KERN_DEBUG "cmd_addr = %.8x\n", rga_read(RGA_CMD_ADDR));
657 p = rga_service.cmd_buff;
660 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
661 printk("%.8x %.8x\n", p[0 + i*4], p[1+i*4]);
666 rga_write((0x1<<2)|(0x1<<3), RGA_SYS_CTRL);
668 /* All CMD finish int */
669 rga_write(rga_read(RGA_INT)|(0x1<<10)|(0x1<<8), RGA_INT);
672 rga_start = ktime_get();
676 atomic_set(®->session->done, 0);
677 rga_write(0x1, RGA_CMD_CTRL);
682 printk("CMD_READ_BACK_REG\n");
684 printk("%.8x %.8x %.8x %.8x\n", rga_read(0x100 + i*16 + 0),
685 rga_read(0x100 + i*16 + 4), rga_read(0x100 + i*16 + 8), rga_read(0x100 + i*16 + 12));
686 printk("%.8x %.8x\n", rga_read(0x100 + i*16 + 0), rga_read(0x100 + i*16 + 4));
696 /* Caller must hold rga_service.lock */
697 static void rga_del_running_list(void)
701 while(!list_empty(&rga_service.running))
703 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
705 if(reg->MMU_len != 0)
707 if (rga_mmu_buf.back + reg->MMU_len > 2*rga_mmu_buf.size)
708 rga_mmu_buf.back = reg->MMU_len + rga_mmu_buf.size;
710 rga_mmu_buf.back += reg->MMU_len;
713 atomic_sub(1, ®->session->task_running);
714 atomic_sub(1, &rga_service.total_running);
716 if(list_empty(®->session->waiting))
718 atomic_set(®->session->done, 1);
719 wake_up(®->session->wait);
726 /* Caller must hold rga_service.lock */
727 static void rga_del_running_list_timeout(void)
731 while(!list_empty(&rga_service.running))
733 reg = list_entry(rga_service.running.next, struct rga_reg, status_link);
735 if(reg->MMU_len != 0)
737 if (rga_mmu_buf.back + reg->MMU_len > 2*rga_mmu_buf.size)
738 rga_mmu_buf.back = reg->MMU_len + rga_mmu_buf.size;
740 rga_mmu_buf.back += reg->MMU_len;
743 atomic_sub(1, ®->session->task_running);
744 atomic_sub(1, &rga_service.total_running);
746 //printk("RGA soft reset for timeout process\n");
751 printk("RGA_INT is %.8x\n", rga_read(RGA_INT));
752 printk("reg->session->task_running = %d\n", atomic_read(®->session->task_running));
753 printk("rga_service.total_running = %d\n", atomic_read(&rga_service.total_running));
755 print_info(®->req);
761 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
766 if(list_empty(®->session->waiting))
768 atomic_set(®->session->done, 1);
769 wake_up(®->session->wait);
777 static void rga_mem_addr_sel(struct rga_req *req)
779 switch(req->src.format)
781 case RK_FORMAT_YCbCr_422_SP:
783 case RK_FORMAT_YCbCr_422_P :
785 case RK_FORMAT_YCbCr_420_SP :
786 if((req->src.yrgb_addr > 0xc0000000) && (req->src.uv_addr > 0xc0000000)
787 && (req->dst.yrgb_addr > 0xc0000000))
789 req->src.yrgb_addr = req->src.yrgb_addr - 0x60000000;
790 req->src.uv_addr = req->src.uv_addr - 0x60000000;
791 req->dst.yrgb_addr = req->dst.yrgb_addr - 0x60000000;
792 req->mmu_info.mmu_en = 0;
793 req->mmu_info.mmu_flag &= 0xfffe;
796 case RK_FORMAT_YCbCr_420_P :
798 case RK_FORMAT_YCrCb_422_SP :
800 case RK_FORMAT_YCrCb_422_P :
802 case RK_FORMAT_YCrCb_420_SP :
804 case RK_FORMAT_YCrCb_420_P :
812 static int rga_convert_dma_buf(struct rga_req *req)
814 struct ion_handle *hdl;
815 ion_phys_addr_t phy_addr;
818 uint32_t src_offset, dst_offset;
823 src_offset = req->line_draw_info.flag;
824 dst_offset = req->line_draw_info.line_width;
826 if(req->src.yrgb_addr) {
827 hdl = ion_import_dma_buf(drvdata->ion_client, req->src.yrgb_addr);
830 printk("RGA2 ERROR ion buf handle\n");
833 if ((req->mmu_info.mmu_flag >> 8) & 1) {
834 req->sg_src = ion_sg_table(drvdata->ion_client, hdl);
835 req->src.yrgb_addr = req->src.uv_addr;
836 req->src.uv_addr = req->src.yrgb_addr + (req->src.vir_w * req->src.vir_h);
837 req->src.v_addr = req->src.uv_addr + (req->src.vir_w * req->src.vir_h)/4;
840 ion_phys(drvdata->ion_client, hdl, &phy_addr, &len);
841 req->src.yrgb_addr = phy_addr + src_offset;
842 req->src.uv_addr = req->src.yrgb_addr + (req->src.vir_w * req->src.vir_h);
843 req->src.v_addr = req->src.uv_addr + (req->src.vir_w * req->src.vir_h)/4;
845 ion_free(drvdata->ion_client, hdl);
848 req->src.yrgb_addr = req->src.uv_addr;
849 req->src.uv_addr = req->src.yrgb_addr + (req->src.vir_w * req->src.vir_h);
850 req->src.v_addr = req->src.uv_addr + (req->src.vir_w * req->src.vir_h)/4;
853 if(req->dst.yrgb_addr) {
854 hdl = ion_import_dma_buf(drvdata->ion_client, req->dst.yrgb_addr);
857 printk("RGA2 ERROR ion buf handle\n");
860 if ((req->mmu_info.mmu_flag >> 10) & 1) {
861 req->sg_dst = ion_sg_table(drvdata->ion_client, hdl);
862 req->dst.yrgb_addr = req->dst.uv_addr;
863 req->dst.uv_addr = req->dst.yrgb_addr + (req->dst.vir_w * req->dst.vir_h);
864 req->dst.v_addr = req->dst.uv_addr + (req->dst.vir_w * req->dst.vir_h)/4;
867 ion_phys(drvdata->ion_client, hdl, &phy_addr, &len);
868 req->dst.yrgb_addr = phy_addr + dst_offset;
869 req->dst.uv_addr = req->dst.yrgb_addr + (req->dst.vir_w * req->dst.vir_h);
870 req->dst.v_addr = req->dst.uv_addr + (req->dst.vir_w * req->dst.vir_h)/4;
872 ion_free(drvdata->ion_client, hdl);
875 req->dst.yrgb_addr = req->dst.uv_addr;
876 req->dst.uv_addr = req->dst.yrgb_addr + (req->dst.vir_w * req->dst.vir_h);
877 req->dst.v_addr = req->dst.uv_addr + (req->dst.vir_w * req->dst.vir_h)/4;
884 static int rga_blit(rga_session *session, struct rga_req *req)
891 uint32_t saw, sah, daw, dah;
893 saw = req->src.act_w;
894 sah = req->src.act_h;
895 daw = req->dst.act_w;
896 dah = req->dst.act_h;
902 if(rga_convert_dma_buf(req)) {
903 printk("RGA : DMA buf copy error\n");
908 if((req->render_mode == bitblt_mode) && (((saw>>1) >= daw) || ((sah>>1) >= dah))) {
909 /* generate 2 cmd for pre scale */
911 ret = rga_check_param(req);
913 printk("req 0 argument is inval\n");
917 ret = RGA_gen_two_pro(req, &req2);
922 ret = rga_check_param(req);
924 printk("req 1 argument is inval\n");
928 ret = rga_check_param(&req2);
930 printk("req 2 argument is inval\n");
934 reg = rga_reg_init_2(session, req, &req2);
942 /* check value if legal */
943 ret = rga_check_param(req);
945 printk("req argument is inval\n");
949 if(req->render_mode == bitblt_mode)
950 rga_mem_addr_sel(req);
952 reg = rga_reg_init(session, req);
959 mutex_lock(&rga_service.lock);
960 atomic_add(num, &rga_service.total_running);
962 mutex_unlock(&rga_service.lock);
971 static int rga_blit_async(rga_session *session, struct rga_req *req)
976 printk("*** rga_blit_async proc ***\n");
979 atomic_set(&session->done, 0);
980 ret = rga_blit(session, req);
984 static int rga_blit_sync(rga_session *session, struct rga_req *req)
990 printk("*** rga_blit_sync proc ***\n");
993 atomic_set(&session->done, 0);
994 ret = rga_blit(session, req);
998 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA_TIMEOUT_DELAY);
1000 if (unlikely(ret_timeout< 0)) {
1001 mutex_lock(&rga_service.lock);
1002 rga_del_running_list();
1003 mutex_unlock(&rga_service.lock);
1006 else if (0 == ret_timeout) {
1007 mutex_lock(&rga_service.lock);
1008 rga_del_running_list_timeout();
1010 mutex_unlock(&rga_service.lock);
1015 rga_end = ktime_get();
1016 rga_end = ktime_sub(rga_end, rga_start);
1017 printk("sync one cmd end time %d\n", (int)ktime_to_us(rga_end));
1024 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
1028 rga_session *session;
1030 mutex_lock(&rga_service.mutex);
1032 session = (rga_session *)file->private_data;
1034 if (NULL == session) {
1035 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
1036 mutex_unlock(&rga_service.mutex);
1040 memset(&req, 0x0, sizeof(req));
1044 if (unlikely(copy_from_user(&req, (struct rga_req*)arg, sizeof(struct rga_req))))
1046 ERR("copy_from_user failed\n");
1050 ret = rga_blit_sync(session, &req);
1052 case RGA_BLIT_ASYNC:
1053 if (unlikely(copy_from_user(&req, (struct rga_req*)arg, sizeof(struct rga_req))))
1055 ERR("copy_from_user failed\n");
1060 if((atomic_read(&rga_service.total_running) > 16))
1062 ret = rga_blit_sync(session, &req);
1066 ret = rga_blit_async(session, &req);
1070 ret = rga_flush(session, arg);
1072 case RGA_GET_RESULT:
1073 ret = rga_get_result(session, arg);
1075 case RGA_GET_VERSION:
1076 ret = copy_to_user((void *)arg, RGA_VERSION, sizeof(RGA_VERSION));
1080 ERR("unknown ioctl cmd!\n");
1085 mutex_unlock(&rga_service.mutex);
1091 long rga_ioctl_kernel(struct rga_req *req)
1094 if (!rga_ioctl_kernel_p) {
1095 printk("rga_ioctl_kernel_p is NULL\n");
1099 ret = (*rga_ioctl_kernel_p)(req);
1105 long rga_ioctl_kernel_imp(struct rga_req *req)
1108 rga_session *session;
1110 mutex_lock(&rga_service.mutex);
1112 session = &rga_session_global;
1114 if (NULL == session) {
1115 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
1116 mutex_unlock(&rga_service.mutex);
1120 ret = rga_blit_sync(session, req);
1122 mutex_unlock(&rga_service.mutex);
1128 static int rga_open(struct inode *inode, struct file *file)
1130 rga_session *session = kzalloc(sizeof(rga_session), GFP_KERNEL);
1131 if (NULL == session) {
1132 pr_err("unable to allocate memory for rga_session.");
1136 session->pid = current->pid;
1137 //printk(KERN_DEBUG "+");
1139 INIT_LIST_HEAD(&session->waiting);
1140 INIT_LIST_HEAD(&session->running);
1141 INIT_LIST_HEAD(&session->list_session);
1142 init_waitqueue_head(&session->wait);
1143 mutex_lock(&rga_service.lock);
1144 list_add_tail(&session->list_session, &rga_service.session);
1145 mutex_unlock(&rga_service.lock);
1146 atomic_set(&session->task_running, 0);
1147 atomic_set(&session->num_done, 0);
1149 file->private_data = (void *)session;
1151 //DBG("*** rga dev opened by pid %d *** \n", session->pid);
1152 return nonseekable_open(inode, file);
1156 static int rga_release(struct inode *inode, struct file *file)
1159 rga_session *session = (rga_session *)file->private_data;
1160 if (NULL == session)
1162 //printk(KERN_DEBUG "-");
1163 task_running = atomic_read(&session->task_running);
1167 pr_err("rga_service session %d still has %d task running when closing\n", session->pid, task_running);
1172 wake_up(&session->wait);
1173 mutex_lock(&rga_service.lock);
1174 list_del(&session->list_session);
1175 rga_service_session_clear(session);
1177 mutex_unlock(&rga_service.lock);
1179 //DBG("*** rga dev close ***\n");
1183 static irqreturn_t rga_irq_thread(int irq, void *dev_id)
1185 mutex_lock(&rga_service.lock);
1186 if (rga_service.enable) {
1187 rga_del_running_list();
1190 mutex_unlock(&rga_service.lock);
1195 static irqreturn_t rga_irq(int irq, void *dev_id)
1198 rga_write(rga_read(RGA_INT) | (0x1<<6) | (0x1<<7) | (0x1<<4), RGA_INT);
1200 return IRQ_WAKE_THREAD;
1203 struct file_operations rga_fops = {
1204 .owner = THIS_MODULE,
1206 .release = rga_release,
1207 .unlocked_ioctl = rga_ioctl,
1210 static struct miscdevice rga_dev ={
1217 #if defined(CONFIG_OF)
1218 static const struct of_device_id rockchip_rga_dt_ids[] = {
1219 { .compatible = "rockchip,rk312x-rga", },
1224 static int rga_drv_probe(struct platform_device *pdev)
1226 struct rga_drvdata *data;
1227 struct resource *res;
1228 //struct device_node *np = pdev->dev.of_node;
1231 mutex_init(&rga_service.lock);
1232 mutex_init(&rga_service.mutex);
1233 atomic_set(&rga_service.total_running, 0);
1234 rga_service.enable = false;
1236 rga_ioctl_kernel_p = rga_ioctl_kernel_imp;
1238 data = devm_kzalloc(&pdev->dev, sizeof(struct rga_drvdata), GFP_KERNEL);
1240 ERR("failed to allocate driver data.\n");
1244 INIT_DELAYED_WORK(&data->power_off_work, rga_power_off_work);
1245 wake_lock_init(&data->wake_lock, WAKE_LOCK_SUSPEND, "rga");
1247 //data->pd_rga = devm_clk_get(&pdev->dev, "pd_rga");
1248 data->aclk_rga = devm_clk_get(&pdev->dev, "aclk_rga");
1249 data->hclk_rga = devm_clk_get(&pdev->dev, "hclk_rga");
1251 /* map the registers */
1252 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1253 data->rga_base = devm_ioremap_resource(&pdev->dev, res);
1254 if (!data->rga_base) {
1255 ERR("rga ioremap failed\n");
1261 data->irq = ret = platform_get_irq(pdev, 0);
1263 ERR("failed to get rga irq resource (%d).\n", data->irq);
1268 /* request the IRQ */
1269 //ret = request_threaded_irq(data->irq, rga_irq, rga_irq_thread, 0, "rga", pdev);
1270 ret = devm_request_threaded_irq(&pdev->dev, data->irq, rga_irq, rga_irq_thread, 0, "rga", data);
1273 ERR("rga request_irq failed (%d).\n", ret);
1277 platform_set_drvdata(pdev, data);
1280 #if defined(CONFIG_ION_ROCKCHIP)
1281 data->ion_client = rockchip_ion_client_create("rga");
1282 if (IS_ERR(data->ion_client)) {
1283 dev_err(&pdev->dev, "failed to create ion client for rga");
1284 return PTR_ERR(data->ion_client);
1286 dev_info(&pdev->dev, "rga ion client create success!\n");
1290 ret = misc_register(&rga_dev);
\r
1293 ERR("cannot register miscdev (%d)\n", ret);
\r
1294 goto err_misc_register;
\r
1297 pr_info("Driver loaded succesfully\n");
\r
1301 err_misc_register:
\r
1302 free_irq(data->irq, pdev);
\r
1304 iounmap(data->rga_base);
\r
1306 wake_lock_destroy(&data->wake_lock);
\r
1312 static int rga_drv_remove(struct platform_device *pdev)
\r
1314 struct rga_drvdata *data = platform_get_drvdata(pdev);
\r
1315 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
\r
1317 wake_lock_destroy(&data->wake_lock);
\r
1318 misc_deregister(&(data->miscdev));
\r
1319 free_irq(data->irq, &data->miscdev);
\r
1320 iounmap((void __iomem *)(data->rga_base));
\r
1322 //clk_put(data->pd_rga);
\r
1323 devm_clk_put(&pdev->dev, data->aclk_rga);
\r
1324 devm_clk_put(&pdev->dev, data->hclk_rga);
\r
1330 static struct platform_driver rga_driver = {
\r
1331 .probe = rga_drv_probe,
\r
1332 .remove = rga_drv_remove,
\r
1334 .owner = THIS_MODULE,
\r
1336 .of_match_table = of_match_ptr(rockchip_rga_dt_ids),
\r
1341 void rga_test_0(void);
\r
1342 void rga_test_1(void);
\r
1345 static int __init rga_init(void)
\r
1348 uint32_t *mmu_buf;
\r
1349 unsigned long *mmu_buf_virtual;
\r
1353 /* malloc pre scale mid buf mmu table */
\r
1354 mmu_buf = kzalloc(1024*8, GFP_KERNEL);
\r
1355 mmu_buf_virtual = kzalloc(1024*2*sizeof(unsigned long), GFP_KERNEL);
\r
1356 if(mmu_buf == NULL) {
\r
1357 printk(KERN_ERR "RGA get Pre Scale buff failed. \n");
\r
1361 /* malloc 4 M buf */
\r
1362 for(i=0; i<1024; i++) {
\r
1363 buf_p = (uint32_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
\r
1364 if(buf_p == NULL) {
\r
1365 printk(KERN_ERR "RGA init pre scale buf falied\n");
\r
1368 mmu_buf[i] = virt_to_phys((void *)((unsigned long)buf_p));
\r
1369 mmu_buf_virtual[i] = (unsigned long)buf_p;
\r
1372 rga_service.pre_scale_buf = (uint32_t *)mmu_buf;
\r
1373 rga_service.pre_scale_buf_virtual = (unsigned long *)mmu_buf_virtual;
\r
1375 buf_p = kmalloc(1024*256, GFP_KERNEL);
\r
1376 rga_mmu_buf.buf_virtual = buf_p;
\r
1377 rga_mmu_buf.buf = (uint32_t *)virt_to_phys((void *)((unsigned long)buf_p));
\r
1378 rga_mmu_buf.front = 0;
\r
1379 rga_mmu_buf.back = 64*1024;
\r
1380 rga_mmu_buf.size = 64*1024;
\r
1382 rga_mmu_buf.pages = kmalloc((32768)* sizeof(struct page *), GFP_KERNEL);
\r
1384 if ((ret = platform_driver_register(&rga_driver)) != 0)
\r
1386 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
\r
1391 rga_session_global.pid = 0x0000ffff;
\r
1392 INIT_LIST_HEAD(&rga_session_global.waiting);
\r
1393 INIT_LIST_HEAD(&rga_session_global.running);
\r
1394 INIT_LIST_HEAD(&rga_session_global.list_session);
\r
1396 INIT_LIST_HEAD(&rga_service.waiting);
\r
1397 INIT_LIST_HEAD(&rga_service.running);
\r
1398 INIT_LIST_HEAD(&rga_service.done);
\r
1399 INIT_LIST_HEAD(&rga_service.session);
\r
1401 init_waitqueue_head(&rga_session_global.wait);
\r
1402 //mutex_lock(&rga_service.lock);
\r
1403 list_add_tail(&rga_session_global.list_session, &rga_service.session);
\r
1404 //mutex_unlock(&rga_service.lock);
\r
1405 atomic_set(&rga_session_global.task_running, 0);
\r
1406 atomic_set(&rga_session_global.num_done, 0);
\r
1415 INFO("Module initialized.\n");
\r
1420 static void __exit rga_exit(void)
\r
1426 for(i=0; i<1024; i++)
\r
1428 if((unsigned long)rga_service.pre_scale_buf_virtual[i])
\r
1430 __free_page((void *)rga_service.pre_scale_buf_virtual[i]);
\r
1434 if(rga_service.pre_scale_buf != NULL) {
\r
1435 kfree((uint8_t *)rga_service.pre_scale_buf);
\r
1438 if (rga_mmu_buf.buf_virtual)
\r
1439 kfree(rga_mmu_buf.buf_virtual);
\r
1441 if (rga_mmu_buf.pages)
\r
1442 kfree(rga_mmu_buf.pages);
\r
1444 platform_driver_unregister(&rga_driver);
\r
1450 extern struct fb_info * rk_get_fb(int fb_id);
\r
1451 EXPORT_SYMBOL(rk_get_fb);
\r
1453 extern void rk_direct_fb_show(struct fb_info * fbi);
\r
1454 EXPORT_SYMBOL(rk_direct_fb_show);
\r
1456 unsigned int src_buf[1920*1080];
\r
1457 unsigned int dst_buf[1920*1080];
\r
1458 //unsigned int tmp_buf[1920*1080 * 2];
\r
1460 void rga_test_0(void)
\r
1462 struct rga_req req;
\r
1463 rga_session session;
\r
1464 unsigned int *src, *dst;
\r
1468 uint32_t *dst0, *dst1, *dst2;
\r
1470 struct fb_info *fb;
\r
1472 session.pid = current->pid;
\r
1473 INIT_LIST_HEAD(&session.waiting);
\r
1474 INIT_LIST_HEAD(&session.running);
\r
1475 INIT_LIST_HEAD(&session.list_session);
\r
1476 init_waitqueue_head(&session.wait);
\r
1477 /* no need to protect */
\r
1478 list_add_tail(&session.list_session, &rga_service.session);
\r
1479 atomic_set(&session.task_running, 0);
\r
1480 atomic_set(&session.num_done, 0);
\r
1481 //file->private_data = (void *)session;
\r
1483 fb = rk_get_fb(0);
\r
1485 memset(&req, 0, sizeof(struct rga_req));
\r
1489 memset(src_buf, 0x80, 1024*600*4);
\r
1491 dmac_flush_range(&src_buf[0], &src_buf[1024*600]);
\r
1492 outer_flush_range(virt_to_phys(&src_buf[0]),virt_to_phys(&src_buf[1024*600]));
\r
1496 memset(src_buf, 0x80, 800*480*4);
\r
1497 memset(dst_buf, 0xcc, 800*480*4);
\r
1499 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
\r
1500 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
\r
1503 dst0 = &dst_buf[0];
\r
1504 //dst1 = &dst_buf[1280*800*4];
\r
1505 //dst2 = &dst_buf[1280*800*4*2];
\r
1509 printk("\n********************************\n");
\r
1510 printk("************ RGA_TEST ************\n");
\r
1511 printk("********************************\n\n");
\r
1513 req.src.act_w = 1024;
\r
1514 req.src.act_h = 600;
\r
1516 req.src.vir_w = 1024;
\r
1517 req.src.vir_h = 600;
\r
1518 req.src.yrgb_addr = (uint32_t)virt_to_phys(src);
\r
1519 req.src.uv_addr = (uint32_t)(req.src.yrgb_addr + 1080*1920);
\r
1520 req.src.v_addr = (uint32_t)virt_to_phys(src);
\r
1521 req.src.format = RK_FORMAT_RGBA_8888;
\r
1523 req.dst.act_w = 600;
\r
1524 req.dst.act_h = 352;
\r
1526 req.dst.vir_w = 1280;
\r
1527 req.dst.vir_h = 800;
\r
1528 req.dst.x_offset = 600;
\r
1529 req.dst.y_offset = 0;
\r
1533 req.dst.yrgb_addr = ((uint32_t)virt_to_phys(dst));
\r
1535 //req.dst.format = RK_FORMAT_RGB_565;
\r
1537 req.clip.xmin = 0;
\r
1538 req.clip.xmax = 1279;
\r
1539 req.clip.ymin = 0;
\r
1540 req.clip.ymax = 799;
\r
1542 //req.render_mode = color_fill_mode;
\r
1543 //req.fg_color = 0x80ffffff;
\r
1545 req.rotate_mode = 1;
\r
1546 //req.scale_mode = 2;
\r
1548 //req.alpha_rop_flag = 0;
\r
1549 //req.alpha_rop_mode = 0x19;
\r
1550 //req.PD_mode = 3;
\r
1555 //req.mmu_info.mmu_flag = 0x21;
\r
1556 //req.mmu_info.mmu_en = 1;
\r
1558 //printk("src = %.8x\n", req.src.yrgb_addr);
\r
1559 //printk("src = %.8x\n", req.src.uv_addr);
\r
1560 //printk("dst = %.8x\n", req.dst.yrgb_addr);
\r
1563 rga_blit_sync(&session, &req);
\r
1566 fb->var.bits_per_pixel = 32;
\r
1568 fb->var.xres = 1280;
\r
1569 fb->var.yres = 800;
\r
1571 fb->var.red.length = 8;
\r
1572 fb->var.red.offset = 0;
\r
1573 fb->var.red.msb_right = 0;
\r
1575 fb->var.green.length = 8;
\r
1576 fb->var.green.offset = 8;
\r
1577 fb->var.green.msb_right = 0;
\r
1579 fb->var.blue.length = 8;
\r
1581 fb->var.blue.offset = 16;
\r
1582 fb->var.blue.msb_right = 0;
\r
1584 fb->var.transp.length = 8;
\r
1585 fb->var.transp.offset = 24;
\r
1586 fb->var.transp.msb_right = 0;
\r
1588 fb->var.nonstd &= (~0xff);
\r
1589 fb->var.nonstd |= 1;
\r
1591 fb->fix.smem_start = virt_to_phys(dst);
\r
1593 rk_direct_fb_show(fb);
\r
1599 fs_initcall(rga_init);
\r
1600 module_exit(rga_exit);
\r
1602 /* Module information */
\r
1603 MODULE_AUTHOR("zsq@rock-chips.com");
\r
1604 MODULE_DESCRIPTION("Driver for rga device");
\r
1605 MODULE_LICENSE("GPL");
\r