1 /* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 #include <linux/module.h>
19 #include <linux/kernel.h>
20 #include <linux/sched.h>
21 #include <linux/time.h>
22 #include <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/spinlock.h>
25 #include <linux/delay.h>
26 #include <mach/hardware.h>
29 #include <asm/system.h>
30 #include <asm/mach-types.h>
31 #include <linux/semaphore.h>
32 #include <linux/uaccess.h>
33 #include <linux/clk.h>
34 #include <linux/platform_device.h>
35 #include <linux/pm_qos_params.h>
41 static int tvenc_probe(struct platform_device *pdev);
42 static int tvenc_remove(struct platform_device *pdev);
44 static int tvenc_off(struct platform_device *pdev);
45 static int tvenc_on(struct platform_device *pdev);
47 static struct platform_device *pdev_list[MSM_FB_MAX_DEV_LIST];
48 static int pdev_list_cnt;
50 static struct clk *tvenc_clk;
51 static struct clk *tvdac_clk;
53 static struct platform_driver tvenc_driver = {
55 .remove = tvenc_remove,
57 // .suspend_late = NULL,
58 // .resume_early = NULL,
66 static struct tvenc_platform_data *tvenc_pdata;
68 static int tvenc_off(struct platform_device *pdev)
72 ret = panel_next_off(pdev);
74 clk_disable(tvenc_clk);
75 clk_disable(tvdac_clk);
77 if (tvenc_pdata && tvenc_pdata->pm_vid_en)
78 ret = tvenc_pdata->pm_vid_en(0);
80 //pm_qos_update_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc",
81 // PM_QOS_DEFAULT_VALUE);
84 printk(KERN_ERR "%s: pm_vid_en(off) failed! %d\n",
90 static int tvenc_on(struct platform_device *pdev)
94 // pm_qos_update_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc",
96 if (tvenc_pdata && tvenc_pdata->pm_vid_en)
97 ret = tvenc_pdata->pm_vid_en(1);
100 printk(KERN_ERR "%s: pm_vid_en(on) failed! %d\n",
105 clk_enable(tvenc_clk);
106 clk_enable(tvdac_clk);
108 ret = panel_next_on(pdev);
113 void tvenc_gen_test_pattern(struct msm_fb_data_type *mfd)
117 reg = readl(MSM_TV_ENC_CTL);
118 reg |= TVENC_CTL_TEST_PATT_EN;
120 for (i = 0; i < 3; i++) {
121 TV_OUT(TV_ENC_CTL, 0); /* disable TV encoder */
125 * TV Encoder - Color Bar Test Pattern
128 reg |= TVENC_CTL_TPG_CLRBAR;
131 * TV Encoder - Red Frame Test Pattern
134 reg |= TVENC_CTL_TPG_REDCLR;
137 * TV Encoder - Modulated Ramp Test Pattern
140 reg |= TVENC_CTL_TPG_MODRAMP;
144 TV_OUT(TV_ENC_CTL, reg);
149 * TV Encoder - Color Bar Test Pattern
152 reg &= ~TVENC_CTL_TPG_CLRBAR;
155 * TV Encoder - Red Frame Test Pattern
158 reg &= ~TVENC_CTL_TPG_REDCLR;
161 * TV Encoder - Modulated Ramp Test Pattern
164 reg &= ~TVENC_CTL_TPG_MODRAMP;
170 static int tvenc_resource_initialized;
172 static int tvenc_probe(struct platform_device *pdev)
174 struct msm_fb_data_type *mfd;
175 struct platform_device *mdp_dev = NULL;
176 struct msm_fb_panel_data *pdata = NULL;
180 tvenc_base = ioremap(pdev->resource[0].start,
181 pdev->resource[0].end -
182 pdev->resource[0].start + 1);
185 "tvenc_base ioremap failed!\n");
188 tvenc_pdata = pdev->dev.platform_data;
189 tvenc_resource_initialized = 1;
193 if (!tvenc_resource_initialized)
196 mfd = platform_get_drvdata(pdev);
201 if (mfd->key != MFD_KEY)
204 if (pdev_list_cnt >= MSM_FB_MAX_DEV_LIST)
207 if (tvenc_base == NULL)
210 mdp_dev = platform_device_alloc("mdp", pdev->id);
215 * link to the latest pdev
218 mfd->dest = DISPLAY_TV;
221 * alloc panel device data
223 if (platform_device_add_data
224 (mdp_dev, pdev->dev.platform_data,
225 sizeof(struct msm_fb_panel_data))) {
226 printk(KERN_ERR "tvenc_probe: platform_device_add_data failed!\n");
227 platform_device_put(mdp_dev);
233 pdata = mdp_dev->dev.platform_data;
234 pdata->on = tvenc_on;
235 pdata->off = tvenc_off;
239 * get/set panel specific fb info
241 mfd->panel_info = pdata->panel_info;
242 mfd->fb_imgType = MDP_YCRYCB_H2V1;
247 platform_set_drvdata(mdp_dev, mfd);
250 * register in mdp driver
252 rc = platform_device_add(mdp_dev);
254 goto tvenc_probe_err;
256 pdev_list[pdev_list_cnt++] = pdev;
260 platform_device_put(mdp_dev);
264 static int tvenc_remove(struct platform_device *pdev)
266 // pm_qos_remove_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc");
270 static int tvenc_register_driver(void)
272 return platform_driver_register(&tvenc_driver);
275 static int __init tvenc_driver_init(void)
277 tvenc_clk = clk_get(NULL, "tv_enc_clk");
278 tvdac_clk = clk_get(NULL, "tv_dac_clk");
280 if (IS_ERR(tvenc_clk)) {
281 printk(KERN_ERR "error: can't get tvenc_clk!\n");
282 return PTR_ERR(tvenc_clk);
285 if (IS_ERR(tvdac_clk)) {
286 printk(KERN_ERR "error: can't get tvdac_clk!\n");
288 return PTR_ERR(tvdac_clk);
291 // pm_qos_add_requirement(PM_QOS_SYSTEM_BUS_FREQ , "tvenc",
292 // PM_QOS_DEFAULT_VALUE);
293 return tvenc_register_driver();
296 module_init(tvenc_driver_init);