217 строки
6.1 KiB
C
217 строки
6.1 KiB
C
/*
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* Driver for Sharp s921 driver
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*
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* Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#include "s921_core.h"
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static int s921_isdb_init(struct s921_isdb_t *dev);
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static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params);
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static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params);
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static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data);
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static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01,
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0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00,
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0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00,
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0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80,
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0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12,
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0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00,
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0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff,
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0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00,
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0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88,
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0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00,
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0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06,
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0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00,
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0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00,
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0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20,
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0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70,
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0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f,
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0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00,
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0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00,
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0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30,
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0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d,
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0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f,
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0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00,
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0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84,
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0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e,
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0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba,
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0xf8, 0xd7 };
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static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b,
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0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b,
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0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b,
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0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b,
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0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b,
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0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b,
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0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b,
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0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb,
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0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb,
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0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb,
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0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb,
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0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb,
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0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb,
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0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b,
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0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b,
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0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b,
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0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b };
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int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data) {
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switch(cmd) {
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case ISDB_T_CMD_INIT:
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s921_isdb_init(dev);
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break;
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case ISDB_T_CMD_SET_PARAM:
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s921_isdb_set_parameters(dev, data);
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break;
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case ISDB_T_CMD_TUNE:
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s921_isdb_tune(dev, data);
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break;
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case ISDB_T_CMD_GET_STATUS:
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s921_isdb_get_status(dev, data);
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break;
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default:
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printk("unhandled command\n");
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return -EINVAL;
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}
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return 0;
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}
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static int s921_isdb_init(struct s921_isdb_t *dev) {
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unsigned int i;
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unsigned int ret;
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printk("isdb_init\n");
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for (i = 0; i < sizeof(init_table); i+=2) {
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ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]);
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if (ret != 0) {
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printk("i2c write failed\n");
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return ret;
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}
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}
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return 0;
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}
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static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params) {
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int ret;
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/* auto is sufficient for now, lateron this should be reflected in an extra interface */
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ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2);
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ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7);
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if (ret < 0)
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return -EINVAL;
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return E_OK;
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}
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static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params) {
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int ret;
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int index;
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index = (params->frequency - 473143000)/6000000;
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if (index > 48) {
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return -EINVAL;
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}
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dev->i2c_write(dev->priv_dev, 0x47, 0x60);
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ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a);
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if (ret < 0)
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return -EINVAL;
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ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09);
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if (ret < 0)
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return -EINVAL;
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dev->i2c_write(dev->priv_dev, 0x01, 0x40);
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return 0;
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}
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static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data) {
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unsigned int *ret = (unsigned int*)data;
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u8 ifagc_dt;
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u8 rfagc_dt;
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mdelay(10);
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ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81);
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rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82);
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if (rfagc_dt == 0x40) {
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*ret = 1;
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}
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return 0;
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}
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