diff options
Diffstat (limited to 'drivers/media/dvb/frontends/s921_core.c')
| -rw-r--r-- | drivers/media/dvb/frontends/s921_core.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/s921_core.c b/drivers/media/dvb/frontends/s921_core.c new file mode 100644 index 000000000000..974b52be9aea --- /dev/null +++ b/drivers/media/dvb/frontends/s921_core.c @@ -0,0 +1,216 @@ +/* + * Driver for Sharp s921 driver + * + * Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de> + * + */ + + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include "s921_core.h" + +static int s921_isdb_init(struct s921_isdb_t *dev); +static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params); +static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params); +static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data); + +static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01, + 0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00, + 0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00, + 0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80, + 0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12, + 0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00, + 0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff, + 0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00, + 0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88, + 0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00, + 0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06, + 0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00, + 0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00, + 0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20, + 0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70, + 0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f, + 0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00, + 0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00, + 0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30, + 0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d, + 0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f, + 0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00, + 0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84, + 0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e, + 0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba, + 0xf8, 0xd7 }; + +static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b, + 0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b, + 0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b, + 0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b, + 0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b, + 0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b, + 0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b, + 0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb, + 0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb, + 0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb, + 0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb, + 0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb, + 0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb, + 0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b, + 0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b, + 0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b, + 0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b }; + +int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data) { + switch(cmd) { + case ISDB_T_CMD_INIT: + s921_isdb_init(dev); + break; + case ISDB_T_CMD_SET_PARAM: + s921_isdb_set_parameters(dev, data); + break; + case ISDB_T_CMD_TUNE: + s921_isdb_tune(dev, data); + break; + case ISDB_T_CMD_GET_STATUS: + s921_isdb_get_status(dev, data); + break; + default: + printk("unhandled command\n"); + return -EINVAL; + } + return 0; +} + +static int s921_isdb_init(struct s921_isdb_t *dev) { + unsigned int i; + unsigned int ret; + printk("isdb_init\n"); + for (i = 0; i < sizeof(init_table); i+=2) { + ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]); + if (ret != 0) { + printk("i2c write failed\n"); + return ret; + } + } + return 0; +} + +static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params) { + + int ret; + /* auto is sufficient for now, lateron this should be reflected in an extra interface */ + + + + ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2); + ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2); + + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7); + if (ret < 0) + return -EINVAL; + + return E_OK; +} + +static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params) { + + int ret; + int index; + + index = (params->frequency - 473143000)/6000000; + + if (index > 48) { + return -EINVAL; + } + + dev->i2c_write(dev->priv_dev, 0x47, 0x60); + + ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a); + if (ret < 0) + return -EINVAL; + + ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09); + if (ret < 0) + return -EINVAL; + + dev->i2c_write(dev->priv_dev, 0x01, 0x40); + return 0; +} + +static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data) { + unsigned int *ret = (unsigned int*)data; + u8 ifagc_dt; + u8 rfagc_dt; + + mdelay(10); + ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81); + rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82); + if (rfagc_dt == 0x40) { + *ret = 1; + } + return 0; +} |