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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 | /* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <mach/hardware.h>
#include <linux/io.h>
#include <asm/system.h>
#include <asm/mach-types.h>
#include <linux/semaphore.h>
#include <linux/uaccess.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/pm_qos_params.h>
#define TVENC_C
#include "tvenc.h"
#include "msm_fb.h"
static int tvenc_probe(struct platform_device *pdev);
static int tvenc_remove(struct platform_device *pdev);
static int tvenc_off(struct platform_device *pdev);
static int tvenc_on(struct platform_device *pdev);
static struct platform_device *pdev_list[MSM_FB_MAX_DEV_LIST];
static int pdev_list_cnt;
static struct clk *tvenc_clk;
static struct clk *tvdac_clk;
static struct platform_driver tvenc_driver = {
.probe = tvenc_probe,
.remove = tvenc_remove,
.suspend = NULL,
// .suspend_late = NULL,
// .resume_early = NULL,
.resume = NULL,
.shutdown = NULL,
.driver = {
.name = "tvenc",
},
};
static struct tvenc_platform_data *tvenc_pdata;
static int tvenc_off(struct platform_device *pdev)
{
int ret = 0;
ret = panel_next_off(pdev);
clk_disable(tvenc_clk);
clk_disable(tvdac_clk);
if (tvenc_pdata && tvenc_pdata->pm_vid_en)
ret = tvenc_pdata->pm_vid_en(0);
//pm_qos_update_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc",
// PM_QOS_DEFAULT_VALUE);
if (ret)
printk(KERN_ERR "%s: pm_vid_en(off) failed! %d\n",
__func__, ret);
return ret;
}
static int tvenc_on(struct platform_device *pdev)
{
int ret = 0;
// pm_qos_update_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc",
// 128000);
if (tvenc_pdata && tvenc_pdata->pm_vid_en)
ret = tvenc_pdata->pm_vid_en(1);
if (ret) {
printk(KERN_ERR "%s: pm_vid_en(on) failed! %d\n",
__func__, ret);
return ret;
}
clk_enable(tvenc_clk);
clk_enable(tvdac_clk);
ret = panel_next_on(pdev);
return ret;
}
void tvenc_gen_test_pattern(struct msm_fb_data_type *mfd)
{
uint32 reg = 0, i;
reg = readl(MSM_TV_ENC_CTL);
reg |= TVENC_CTL_TEST_PATT_EN;
for (i = 0; i < 3; i++) {
TV_OUT(TV_ENC_CTL, 0); /* disable TV encoder */
switch (i) {
/*
* TV Encoder - Color Bar Test Pattern
*/
case 0:
reg |= TVENC_CTL_TPG_CLRBAR;
break;
/*
* TV Encoder - Red Frame Test Pattern
*/
case 1:
reg |= TVENC_CTL_TPG_REDCLR;
break;
/*
* TV Encoder - Modulated Ramp Test Pattern
*/
default:
reg |= TVENC_CTL_TPG_MODRAMP;
break;
}
TV_OUT(TV_ENC_CTL, reg);
mdelay(5000);
switch (i) {
/*
* TV Encoder - Color Bar Test Pattern
*/
case 0:
reg &= ~TVENC_CTL_TPG_CLRBAR;
break;
/*
* TV Encoder - Red Frame Test Pattern
*/
case 1:
reg &= ~TVENC_CTL_TPG_REDCLR;
break;
/*
* TV Encoder - Modulated Ramp Test Pattern
*/
default:
reg &= ~TVENC_CTL_TPG_MODRAMP;
break;
}
}
}
static int tvenc_resource_initialized;
static int tvenc_probe(struct platform_device *pdev)
{
struct msm_fb_data_type *mfd;
struct platform_device *mdp_dev = NULL;
struct msm_fb_panel_data *pdata = NULL;
int rc;
if (pdev->id == 0) {
tvenc_base = ioremap(pdev->resource[0].start,
pdev->resource[0].end -
pdev->resource[0].start + 1);
if (!tvenc_base) {
printk(KERN_ERR
"tvenc_base ioremap failed!\n");
return -ENOMEM;
}
tvenc_pdata = pdev->dev.platform_data;
tvenc_resource_initialized = 1;
return 0;
}
if (!tvenc_resource_initialized)
return -EPERM;
mfd = platform_get_drvdata(pdev);
if (!mfd)
return -ENODEV;
if (mfd->key != MFD_KEY)
return -EINVAL;
if (pdev_list_cnt >= MSM_FB_MAX_DEV_LIST)
return -ENOMEM;
if (tvenc_base == NULL)
return -ENOMEM;
mdp_dev = platform_device_alloc("mdp", pdev->id);
if (!mdp_dev)
return -ENOMEM;
/*
* link to the latest pdev
*/
mfd->pdev = mdp_dev;
mfd->dest = DISPLAY_TV;
/*
* alloc panel device data
*/
if (platform_device_add_data
(mdp_dev, pdev->dev.platform_data,
sizeof(struct msm_fb_panel_data))) {
printk(KERN_ERR "tvenc_probe: platform_device_add_data failed!\n");
platform_device_put(mdp_dev);
return -ENOMEM;
}
/*
* data chain
*/
pdata = mdp_dev->dev.platform_data;
pdata->on = tvenc_on;
pdata->off = tvenc_off;
pdata->next = pdev;
/*
* get/set panel specific fb info
*/
mfd->panel_info = pdata->panel_info;
mfd->fb_imgType = MDP_YCRYCB_H2V1;
/*
* set driver data
*/
platform_set_drvdata(mdp_dev, mfd);
/*
* register in mdp driver
*/
rc = platform_device_add(mdp_dev);
if (rc)
goto tvenc_probe_err;
pdev_list[pdev_list_cnt++] = pdev;
return 0;
tvenc_probe_err:
platform_device_put(mdp_dev);
return rc;
}
static int tvenc_remove(struct platform_device *pdev)
{
// pm_qos_remove_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc");
return 0;
}
static int tvenc_register_driver(void)
{
return platform_driver_register(&tvenc_driver);
}
static int __init tvenc_driver_init(void)
{
tvenc_clk = clk_get(NULL, "tv_enc_clk");
tvdac_clk = clk_get(NULL, "tv_dac_clk");
if (IS_ERR(tvenc_clk)) {
printk(KERN_ERR "error: can't get tvenc_clk!\n");
return IS_ERR(tvenc_clk);
}
if (IS_ERR(tvdac_clk)) {
printk(KERN_ERR "error: can't get tvdac_clk!\n");
return IS_ERR(tvdac_clk);
}
// pm_qos_add_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc",
// PM_QOS_DEFAULT_VALUE);
return tvenc_register_driver();
}
module_init(tvenc_driver_init);
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