diff options
Diffstat (limited to 'linux/drivers/media/dvb/frontends/grundig_29504-491.c')
| -rw-r--r-- | linux/drivers/media/dvb/frontends/grundig_29504-491.c | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/linux/drivers/media/dvb/frontends/grundig_29504-491.c b/linux/drivers/media/dvb/frontends/grundig_29504-491.c deleted file mode 100644 index 53ea55bea..000000000 --- a/linux/drivers/media/dvb/frontends/grundig_29504-491.c +++ /dev/null @@ -1,555 +0,0 @@ -/* - Driver for Grundig 29504-491, a Philips TDA8083 based QPSK Frontend - - Copyright (C) 2001 Convergence Integrated Media GmbH - - written by Ralph Metzler <ralph@convergence.de> - - adoption to the new DVB frontend API and diagnostic ioctl's - by Holger Waechtler <holger@convergence.de> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/string.h> -#include <linux/slab.h> - -#include "dvb_frontend.h" - -#define FRONTEND_NAME "dvbfe_tda8083" - -#define dprintk(args...) \ - do { \ - if (debug) printk(KERN_DEBUG FRONTEND_NAME ": " args); \ - } while (0) - -static int debug; - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - - -struct tda8083_state { - struct i2c_adapter *i2c; - struct dvb_adapter *dvb; -}; - -static struct dvb_frontend_info tda8083_info = { - .name = "Grundig 29504-491, (TDA8083 based)", - .type = FE_QPSK, - .frequency_min = 950000, /* FIXME: guessed! */ - .frequency_max = 1400000, /* FIXME: guessed! */ - .frequency_stepsize = 125, /* kHz for QPSK frontends */ -/* .frequency_tolerance = ???,*/ - .symbol_rate_min = 1000000, /* FIXME: guessed! */ - .symbol_rate_max = 45000000, /* FIXME: guessed! */ -/* .symbol_rate_tolerance = ???,*/ - .notifier_delay = 0, - .caps = FE_CAN_INVERSION_AUTO | - FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | - FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | - FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO | - FE_CAN_QPSK | FE_CAN_MUTE_TS -}; - -static u8 tda8083_init_tab [] = { - 0x04, 0x00, 0x4a, 0x79, 0x04, 0x00, 0xff, 0xea, - 0x48, 0x42, 0x79, 0x60, 0x70, 0x52, 0x9a, 0x10, - 0x0e, 0x10, 0xf2, 0xa7, 0x93, 0x0b, 0x05, 0xc8, - 0x9d, 0x00, 0x42, 0x80, 0x00, 0x60, 0x40, 0x00, - 0x00, 0x75, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00 -}; - - -static int tda8083_writereg (struct i2c_adapter *i2c, u8 reg, u8 data) -{ - int ret; - u8 buf [] = { reg, data }; - struct i2c_msg msg = { .addr = 0x68, .flags = 0, .buf = buf, .len = 2 }; - - ret = i2c_transfer(i2c, &msg, 1); - - if (ret != 1) - dprintk ("%s: writereg error (reg %02x, ret == %i)\n", - __FUNCTION__, reg, ret); - - return (ret != 1) ? -1 : 0; -} - - -static int tda8083_readregs (struct i2c_adapter *i2c, u8 reg1, u8 *b, u8 len) -{ - int ret; - struct i2c_msg msg [] = { { .addr = 0x68, .flags = 0, .buf = ®1, .len = 1 }, - { .addr = 0x68, .flags = I2C_M_RD, .buf = b, .len = len } }; - - ret = i2c_transfer(i2c, msg, 2); - - if (ret != 2) - dprintk ("%s: readreg error (reg %02x, ret == %i)\n", - __FUNCTION__, reg1, ret); - - return ret == 2 ? 0 : -1; -} - - -static inline u8 tda8083_readreg (struct i2c_adapter *i2c, u8 reg) -{ - u8 val; - - tda8083_readregs (i2c, reg, &val, 1); - - return val; -} - - -static int tsa5522_write (struct i2c_adapter *i2c, u8 data [4]) -{ - int ret; - struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = 4 }; - - ret = i2c_transfer(i2c, &msg, 1); - - if (ret != 1) - dprintk("%s: i/o error (ret == %i)\n", __FUNCTION__, ret); - - return (ret != 1) ? -1 : 0; -} - - -/** - * set up the downconverter frequency divisor for a - * reference clock comparision frequency of 125 kHz. - */ -static int tsa5522_set_tv_freq (struct i2c_adapter *i2c, u32 freq) -{ - u32 div = freq / 125; - u8 buf [4] = { (div >> 8) & 0x7f, div & 0xff, 0x8e, 0x00 }; - - return tsa5522_write (i2c, buf); -} - - -static int tda8083_init (struct i2c_adapter *i2c) -{ - int i; - - dprintk("%s: init TDA8083\n", __FILE__); - - for (i=0; i<44; i++) - tda8083_writereg (i2c, i, tda8083_init_tab[i]); - - return 0; -} - - -static int tda8083_set_inversion (struct i2c_adapter *i2c, fe_spectral_inversion_t inversion) -{ - /* XXX FIXME: implement other modes than FEC_AUTO */ - if (inversion == INVERSION_AUTO) - return 0; - - return -EINVAL; -} - - -static int tda8083_set_fec (struct i2c_adapter *i2c, fe_code_rate_t fec) -{ - if (fec == FEC_AUTO) - return tda8083_writereg (i2c, 0x07, 0xff); - - if (fec >= FEC_1_2 && fec <= FEC_8_9) - return tda8083_writereg (i2c, 0x07, 1 << (FEC_8_9 - fec)); - - return -EINVAL; -} - - -static fe_code_rate_t tda8083_get_fec (struct i2c_adapter *i2c) -{ - u8 index; - static fe_code_rate_t fec_tab [] = { FEC_8_9, FEC_1_2, FEC_2_3, FEC_3_4, - FEC_4_5, FEC_5_6, FEC_6_7, FEC_7_8 }; - - index = tda8083_readreg(i2c, 0x0e) & 0x07; - - return fec_tab [index]; -} - - -static int tda8083_set_symbolrate (struct i2c_adapter *i2c, u32 srate) -{ - u32 ratio; - u32 tmp; - u8 filter; - - if (srate > 32000000) - srate = 32000000; - if (srate < 500000) - srate = 500000; - - filter = 0; - if (srate < 24000000) - filter = 2; - if (srate < 16000000) - filter = 3; - - tmp = 31250 << 16; - ratio = tmp / srate; - - tmp = (tmp % srate) << 8; - ratio = (ratio << 8) + tmp / srate; - - tmp = (tmp % srate) << 8; - ratio = (ratio << 8) + tmp / srate; - - dprintk("tda8083: ratio == %08x\n", (unsigned int) ratio); - - tda8083_writereg (i2c, 0x05, filter); - tda8083_writereg (i2c, 0x02, (ratio >> 16) & 0xff); - tda8083_writereg (i2c, 0x03, (ratio >> 8) & 0xff); - tda8083_writereg (i2c, 0x04, (ratio ) & 0xff); - - tda8083_writereg (i2c, 0x00, 0x3c); - tda8083_writereg (i2c, 0x00, 0x04); - - return 1; -} - - -static void tda8083_wait_diseqc_fifo (struct i2c_adapter *i2c, int timeout) -{ - unsigned long start = jiffies; - - while (jiffies - start < timeout && - !(tda8083_readreg(i2c, 0x02) & 0x80)) - { - msleep(50); - }; -} - - -static int tda8083_send_diseqc_msg (struct i2c_adapter *i2c, - struct dvb_diseqc_master_cmd *m) -{ - int i; - - tda8083_writereg (i2c, 0x29, (m->msg_len - 3) | (1 << 2)); /* enable */ - - for (i=0; i<m->msg_len; i++) - tda8083_writereg (i2c, 0x23 + i, m->msg[i]); - - tda8083_writereg (i2c, 0x29, (m->msg_len - 3) | (3 << 2)); /* send!! */ - - tda8083_wait_diseqc_fifo (i2c, 100); - - return 0; -} - - -static int tda8083_send_diseqc_burst (struct i2c_adapter *i2c, fe_sec_mini_cmd_t burst) -{ - switch (burst) { - case SEC_MINI_A: - tda8083_writereg (i2c, 0x29, (5 << 2)); /* send burst A */ - break; - case SEC_MINI_B: - tda8083_writereg (i2c, 0x29, (7 << 2)); /* send B */ - break; - default: - return -EINVAL; - }; - - tda8083_wait_diseqc_fifo (i2c, 100); - - return 0; -} - - -static int tda8083_set_tone (struct i2c_adapter *i2c, fe_sec_tone_mode_t tone) -{ - tda8083_writereg (i2c, 0x26, 0xf1); - - switch (tone) { - case SEC_TONE_OFF: - return tda8083_writereg (i2c, 0x29, 0x00); - case SEC_TONE_ON: - return tda8083_writereg (i2c, 0x29, 0x80); - default: - return -EINVAL; - }; -} - - -static int tda8083_set_voltage (struct i2c_adapter *i2c, fe_sec_voltage_t voltage) -{ - switch (voltage) { - case SEC_VOLTAGE_13: - return tda8083_writereg (i2c, 0x20, 0x00); - case SEC_VOLTAGE_18: - return tda8083_writereg (i2c, 0x20, 0x11); - default: - return -EINVAL; - }; -} - - -static int tda8083_ioctl(struct dvb_frontend *fe, unsigned int cmd, - void *arg) -{ - struct tda8083_state *state = fe->data; - struct i2c_adapter *i2c = state->i2c; - - switch (cmd) { - case FE_GET_INFO: - memcpy (arg, &tda8083_info, sizeof(struct dvb_frontend_info)); - break; - - case FE_READ_STATUS: - { - fe_status_t *status=(fe_status_t *) arg; - u8 signal = ~tda8083_readreg (i2c, 0x01); - u8 sync = tda8083_readreg (i2c, 0x02); - - *status = 0; - - if (signal > 10) - *status |= FE_HAS_SIGNAL; - - if (sync & 0x01) - *status |= FE_HAS_CARRIER; - - if (sync & 0x02) - *status |= FE_HAS_VITERBI; - - if (sync & 0x10) - *status |= FE_HAS_SYNC; - - if ((sync & 0x1f) == 0x1f) - *status |= FE_HAS_LOCK; - - break; - } - - case FE_READ_BER: - *((u32*) arg) = 0; /* XXX FIXME: implement me!!! */ - return -EOPNOTSUPP; - - case FE_READ_SIGNAL_STRENGTH: - { - u8 signal = ~tda8083_readreg (i2c, 0x01); - *((u16*) arg) = (signal << 8) | signal; - break; - } - case FE_READ_SNR: - { - u8 snr = tda8083_readreg (i2c, 0x08); - *((u16*) arg) = (snr << 8) | snr; - break; - } - case FE_READ_UNCORRECTED_BLOCKS: - *((u32*) arg) = 0; /* XXX FIXME: implement me!!! */ - return -EOPNOTSUPP; - - - case FE_SET_FRONTEND: - { - struct dvb_frontend_parameters *p = arg; - - tsa5522_set_tv_freq (i2c, p->frequency); - tda8083_set_inversion (i2c, p->inversion); - tda8083_set_fec (i2c, p->u.qpsk.fec_inner); - tda8083_set_symbolrate (i2c, p->u.qpsk.symbol_rate); - - tda8083_writereg (i2c, 0x00, 0x3c); - tda8083_writereg (i2c, 0x00, 0x04); - - break; - } - - case FE_GET_FRONTEND: - { - struct dvb_frontend_parameters *p = arg; - - /* FIXME: get symbolrate & frequency offset...*/ - /*p->frequency = ???;*/ - p->inversion = (tda8083_readreg (i2c, 0x0e) & 0x80) ? - INVERSION_ON : INVERSION_OFF; - p->u.qpsk.fec_inner = tda8083_get_fec (i2c); - /*p->u.qpsk.symbol_rate = tda8083_get_symbolrate (i2c);*/ - break; - } - - case FE_SLEEP: - tda8083_writereg (i2c, 0x00, 0x02); - break; - - case FE_INIT: - tda8083_init (i2c); - tda8083_writereg (i2c, 0x00, 0x3c); - tda8083_writereg (i2c, 0x00, 0x04); - break; - - case FE_DISEQC_SEND_MASTER_CMD: - return tda8083_send_diseqc_msg (i2c, arg); - - case FE_DISEQC_SEND_BURST: - tda8083_send_diseqc_burst (i2c, (fe_sec_mini_cmd_t) arg); - tda8083_writereg (i2c, 0x00, 0x3c); - tda8083_writereg (i2c, 0x00, 0x04); - - break; - - case FE_SET_TONE: - tda8083_set_tone (i2c, (fe_sec_tone_mode_t) arg); - tda8083_writereg (i2c, 0x00, 0x3c); - tda8083_writereg (i2c, 0x00, 0x04); - break; - - case FE_SET_VOLTAGE: - tda8083_set_voltage (i2c, (fe_sec_voltage_t) arg); - tda8083_writereg (i2c, 0x00, 0x3c); - tda8083_writereg (i2c, 0x00, 0x04); - break; - - default: - return -EOPNOTSUPP; - }; - - return 0; -} - -static struct i2c_client client_template; - -static int tda8083_attach_adapter(struct i2c_adapter *adapter) -{ - struct tda8083_state *state; - struct i2c_client *client; - int ret; - - dprintk("Trying to attach to adapter 0x%x:%s.\n", - adapter->id, adapter->name); - - if ((tda8083_readreg (adapter, 0x00)) != 0x05) - return -ENODEV; - - if ( !(state = kmalloc(sizeof(struct tda8083_state), GFP_KERNEL)) ) - return -ENOMEM; - - if ( !(client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)) ) { - kfree(state); - return -ENOMEM; - } - - memset(state, 0, sizeof(struct tda8083_state)); - state->i2c = adapter; - - memcpy(client, &client_template, sizeof(struct i2c_client)); - client->adapter = adapter; - client->addr = 0; //XXX - i2c_set_clientdata(client, state); - - if ((ret = i2c_attach_client(client))) { - kfree(state); - kfree(client); - return ret; - } - - BUG_ON(!state->dvb); - - if ((ret = dvb_register_frontend(tda8083_ioctl, state->dvb, state, - &tda8083_info, THIS_MODULE))) { - i2c_detach_client(client); - kfree(state); - kfree(client); - return ret; - } - - return 0; -} - -static int tda8083_detach_client(struct i2c_client *client) -{ - struct tda8083_state *state = i2c_get_clientdata(client); - - dvb_unregister_frontend (tda8083_ioctl, state->dvb); - i2c_detach_client(client); - BUG_ON(state->dvb); - kfree(client); - kfree(state); - return 0; -} - -static int tda8083_command (struct i2c_client *client, unsigned int cmd, void *arg) -{ - struct tda8083_state *data = i2c_get_clientdata(client); - dprintk ("%s\n", __FUNCTION__); - - switch (cmd) { - case FE_REGISTER: { - data->dvb = arg; - break; - } - case FE_UNREGISTER: { - data->dvb = NULL; - break; - } - default: - return -EOPNOTSUPP; - } - - return 0; -} - -static struct i2c_driver driver = { - .owner = THIS_MODULE, - .name = FRONTEND_NAME, - .id = I2C_DRIVERID_DVBFE_TDA8083, - .flags = I2C_DF_NOTIFY, - .attach_adapter = tda8083_attach_adapter, - .detach_client = tda8083_detach_client, - .command = tda8083_command, -}; - -static struct i2c_client client_template = { - .name = FRONTEND_NAME, - .flags = I2C_CLIENT_ALLOW_USE, - .driver = &driver, -}; - -static int __init init_tda8083 (void) -{ - return i2c_add_driver(&driver); -} - -static void __exit exit_tda8083(void) -{ - if (i2c_del_driver(&driver)) - printk("grundig_29504_401: driver deregistration failed\n"); -} - -module_init(init_tda8083); -module_exit(exit_tda8083); - -MODULE_DESCRIPTION("Grundig 29504-491 DVB frontend driver (TDA8083 Based)"); -MODULE_AUTHOR("Ralph Metzler, Holger Waechtler"); -MODULE_LICENSE("GPL"); - |