/drivers/staging/msm/hdmi_sii9022.c
https://bitbucket.org/slukk/jb-tsm-kernel-4.2 · C · 248 lines · 188 code · 39 blank · 21 comment · 25 complexity · 254e6adb91c20f8e18e0fc188e236122 MD5 · raw file
- /* Copyright (c) 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/i2c.h>
- #include <linux/delay.h>
- #include "msm_fb.h"
- #define DEVICE_NAME "sii9022"
- #define SII9022_DEVICE_ID 0xB0
- struct sii9022_i2c_addr_data{
- u8 addr;
- u8 data;
- };
- /* video mode data */
- static u8 video_mode_data[] = {
- 0x00,
- 0xF9, 0x1C, 0x70, 0x17, 0x72, 0x06, 0xEE, 0x02,
- };
- static u8 avi_io_format[] = {
- 0x09,
- 0x00, 0x00,
- };
- /* power state */
- static struct sii9022_i2c_addr_data regset0[] = {
- { 0x60, 0x04 },
- { 0x63, 0x00 },
- { 0x1E, 0x00 },
- };
- static u8 video_infoframe[] = {
- 0x0C,
- 0xF0, 0x00, 0x68, 0x00, 0x04, 0x00, 0x19, 0x00,
- 0xE9, 0x02, 0x04, 0x01, 0x04, 0x06,
- };
- /* configure audio */
- static struct sii9022_i2c_addr_data regset1[] = {
- { 0x26, 0x90 },
- { 0x20, 0x90 },
- { 0x1F, 0x80 },
- { 0x26, 0x80 },
- { 0x24, 0x02 },
- { 0x25, 0x0B },
- { 0xBC, 0x02 },
- { 0xBD, 0x24 },
- { 0xBE, 0x02 },
- };
- /* enable audio */
- static u8 misc_infoframe[] = {
- 0xBF,
- 0xC2, 0x84, 0x01, 0x0A, 0x6F, 0x02, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- };
- /* set HDMI, active */
- static struct sii9022_i2c_addr_data regset2[] = {
- { 0x1A, 0x01 },
- { 0x3D, 0x00 },
- };
- static int send_i2c_data(struct i2c_client *client,
- struct sii9022_i2c_addr_data *regset,
- int size)
- {
- int i;
- int rc = 0;
- for (i = 0; i < size; i++) {
- rc = i2c_smbus_write_byte_data(
- client,
- regset[i].addr, regset[i].data);
- if (rc)
- break;
- }
- return rc;
- }
- static int hdmi_sii_enable(struct i2c_client *client)
- {
- int rc;
- int retries = 10;
- int count;
- rc = i2c_smbus_write_byte_data(client, 0xC7, 0x00);
- if (rc)
- goto enable_exit;
- do {
- msleep(1);
- rc = i2c_smbus_read_byte_data(client, 0x1B);
- } while ((rc != SII9022_DEVICE_ID) && retries--);
- if (rc != SII9022_DEVICE_ID)
- return -ENODEV;
- rc = i2c_smbus_write_byte_data(client, 0x1A, 0x11);
- if (rc)
- goto enable_exit;
- count = ARRAY_SIZE(video_mode_data);
- rc = i2c_master_send(client, video_mode_data, count);
- if (rc != count) {
- rc = -EIO;
- goto enable_exit;
- }
- rc = i2c_smbus_write_byte_data(client, 0x08, 0x20);
- if (rc)
- goto enable_exit;
- count = ARRAY_SIZE(avi_io_format);
- rc = i2c_master_send(client, avi_io_format, count);
- if (rc != count) {
- rc = -EIO;
- goto enable_exit;
- }
- rc = send_i2c_data(client, regset0, ARRAY_SIZE(regset0));
- if (rc)
- goto enable_exit;
- count = ARRAY_SIZE(video_infoframe);
- rc = i2c_master_send(client, video_infoframe, count);
- if (rc != count) {
- rc = -EIO;
- goto enable_exit;
- }
- rc = send_i2c_data(client, regset1, ARRAY_SIZE(regset1));
- if (rc)
- goto enable_exit;
- count = ARRAY_SIZE(misc_infoframe);
- rc = i2c_master_send(client, misc_infoframe, count);
- if (rc != count) {
- rc = -EIO;
- goto enable_exit;
- }
- rc = send_i2c_data(client, regset2, ARRAY_SIZE(regset2));
- if (rc)
- goto enable_exit;
- return 0;
- enable_exit:
- printk(KERN_ERR "%s: exited rc=%d\n", __func__, rc);
- return rc;
- }
- static const struct i2c_device_id hmdi_sii_id[] = {
- { DEVICE_NAME, 0 },
- { }
- };
- static int hdmi_sii_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
- {
- int rc;
- if (!i2c_check_functionality(client->adapter,
- I2C_FUNC_SMBUS_BYTE | I2C_FUNC_I2C))
- return -ENODEV;
- rc = hdmi_sii_enable(client);
- return rc;
- }
- static struct i2c_driver hdmi_sii_i2c_driver = {
- .driver = {
- .name = DEVICE_NAME,
- .owner = THIS_MODULE,
- },
- .probe = hdmi_sii_probe,
- .remove = __exit_p(hdmi_sii_remove),
- .id_table = hmdi_sii_id,
- };
- static int __init hdmi_sii_init(void)
- {
- int ret;
- struct msm_panel_info pinfo;
- if (msm_fb_detect_client("hdmi_sii9022"))
- return 0;
- pinfo.xres = 1280;
- pinfo.yres = 720;
- pinfo.type = HDMI_PANEL;
- pinfo.pdest = DISPLAY_1;
- pinfo.wait_cycle = 0;
- pinfo.bpp = 24;
- pinfo.fb_num = 2;
- pinfo.clk_rate = 74250000;
- pinfo.lcdc.h_back_porch = 124;
- pinfo.lcdc.h_front_porch = 110;
- pinfo.lcdc.h_pulse_width = 136;
- pinfo.lcdc.v_back_porch = 19;
- pinfo.lcdc.v_front_porch = 5;
- pinfo.lcdc.v_pulse_width = 6;
- pinfo.lcdc.border_clr = 0;
- pinfo.lcdc.underflow_clr = 0xff;
- pinfo.lcdc.hsync_skew = 0;
- ret = lcdc_device_register(&pinfo);
- if (ret) {
- printk(KERN_ERR "%s: failed to register device\n", __func__);
- goto init_exit;
- }
- ret = i2c_add_driver(&hdmi_sii_i2c_driver);
- if (ret)
- printk(KERN_ERR "%s: failed to add i2c driver\n", __func__);
- init_exit:
- return ret;
- }
- static void __exit hdmi_sii_exit(void)
- {
- i2c_del_driver(&hdmi_sii_i2c_driver);
- }
- module_init(hdmi_sii_init);
- module_exit(hdmi_sii_exit);
- MODULE_LICENSE("GPL v2");
- MODULE_VERSION("0.1");
- MODULE_AUTHOR("Qualcomm Innovation Center, Inc.");
- MODULE_DESCRIPTION("SiI9022 HDMI driver");
- MODULE_ALIAS("platform:hdmi-sii9022");