diff options
Diffstat (limited to 'drivers/staging/msm/hdmi_sii9022.c')
| -rw-r--r-- | drivers/staging/msm/hdmi_sii9022.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/drivers/staging/msm/hdmi_sii9022.c b/drivers/staging/msm/hdmi_sii9022.c new file mode 100644 index 000000000000..6b82b56a77b6 --- /dev/null +++ b/drivers/staging/msm/hdmi_sii9022.c @@ -0,0 +1,248 @@ +/* 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"); |