| /* 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"); |