diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-13 23:13:41 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-13 23:13:41 -0300 |
commit | 9a0bf528b4d66b605f02634236da085595c22101 (patch) | |
tree | e9ff008ff15c3ee5add6d41173ee5e61939480dd /drivers/media/dvb/frontends/tda665x.c | |
parent | 3d6c2bc08ac4f75bf3597740357c98f2207ca412 (diff) |
[media] move the dvb/frontends to drivers/media/dvb-frontends
Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/tda665x.c')
-rw-r--r-- | drivers/media/dvb/frontends/tda665x.c | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/drivers/media/dvb/frontends/tda665x.c b/drivers/media/dvb/frontends/tda665x.c deleted file mode 100644 index 2c1c759a4f4..00000000000 --- a/drivers/media/dvb/frontends/tda665x.c +++ /dev/null @@ -1,258 +0,0 @@ -/* - TDA665x tuner driver - Copyright (C) Manu Abraham (abraham.manu@gmail.com) - - 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/slab.h> - -#include "dvb_frontend.h" -#include "tda665x.h" - -struct tda665x_state { - struct dvb_frontend *fe; - struct i2c_adapter *i2c; - const struct tda665x_config *config; - - u32 frequency; - u32 bandwidth; -}; - -static int tda665x_read(struct tda665x_state *state, u8 *buf) -{ - const struct tda665x_config *config = state->config; - int err = 0; - struct i2c_msg msg = { .addr = config->addr, .flags = I2C_M_RD, .buf = buf, .len = 2 }; - - err = i2c_transfer(state->i2c, &msg, 1); - if (err != 1) - goto exit; - - return err; -exit: - printk(KERN_ERR "%s: I/O Error err=<%d>\n", __func__, err); - return err; -} - -static int tda665x_write(struct tda665x_state *state, u8 *buf, u8 length) -{ - const struct tda665x_config *config = state->config; - int err = 0; - struct i2c_msg msg = { .addr = config->addr, .flags = 0, .buf = buf, .len = length }; - - err = i2c_transfer(state->i2c, &msg, 1); - if (err != 1) - goto exit; - - return err; -exit: - printk(KERN_ERR "%s: I/O Error err=<%d>\n", __func__, err); - return err; -} - -static int tda665x_get_state(struct dvb_frontend *fe, - enum tuner_param param, - struct tuner_state *tstate) -{ - struct tda665x_state *state = fe->tuner_priv; - int err = 0; - - switch (param) { - case DVBFE_TUNER_FREQUENCY: - tstate->frequency = state->frequency; - break; - case DVBFE_TUNER_BANDWIDTH: - break; - default: - printk(KERN_ERR "%s: Unknown parameter (param=%d)\n", __func__, param); - err = -EINVAL; - break; - } - - return err; -} - -static int tda665x_get_status(struct dvb_frontend *fe, u32 *status) -{ - struct tda665x_state *state = fe->tuner_priv; - u8 result = 0; - int err = 0; - - *status = 0; - - err = tda665x_read(state, &result); - if (err < 0) - goto exit; - - if ((result >> 6) & 0x01) { - printk(KERN_DEBUG "%s: Tuner Phase Locked\n", __func__); - *status = 1; - } - - return err; -exit: - printk(KERN_ERR "%s: I/O Error\n", __func__); - return err; -} - -static int tda665x_set_state(struct dvb_frontend *fe, - enum tuner_param param, - struct tuner_state *tstate) -{ - struct tda665x_state *state = fe->tuner_priv; - const struct tda665x_config *config = state->config; - u32 frequency, status = 0; - u8 buf[4]; - int err = 0; - - if (param & DVBFE_TUNER_FREQUENCY) { - - frequency = tstate->frequency; - if ((frequency < config->frequency_max) || (frequency > config->frequency_min)) { - printk(KERN_ERR "%s: Frequency beyond limits, frequency=%d\n", __func__, frequency); - return -EINVAL; - } - - frequency += config->frequency_offst; - frequency *= config->ref_multiplier; - frequency += config->ref_divider >> 1; - frequency /= config->ref_divider; - - buf[0] = (u8) ((frequency & 0x7f00) >> 8); - buf[1] = (u8) (frequency & 0x00ff) >> 0; - buf[2] = 0x80 | 0x40 | 0x02; - buf[3] = 0x00; - - /* restore frequency */ - frequency = tstate->frequency; - - if (frequency < 153000000) { - /* VHF-L */ - buf[3] |= 0x01; /* fc, Low Band, 47 - 153 MHz */ - if (frequency < 68000000) - buf[3] |= 0x40; /* 83uA */ - if (frequency < 1040000000) - buf[3] |= 0x60; /* 122uA */ - if (frequency < 1250000000) - buf[3] |= 0x80; /* 163uA */ - else - buf[3] |= 0xa0; /* 254uA */ - } else if (frequency < 438000000) { - /* VHF-H */ - buf[3] |= 0x02; /* fc, Mid Band, 153 - 438 MHz */ - if (frequency < 230000000) - buf[3] |= 0x40; - if (frequency < 300000000) - buf[3] |= 0x60; - else - buf[3] |= 0x80; - } else { - /* UHF */ - buf[3] |= 0x04; /* fc, High Band, 438 - 862 MHz */ - if (frequency < 470000000) - buf[3] |= 0x60; - if (frequency < 526000000) - buf[3] |= 0x80; - else - buf[3] |= 0xa0; - } - - /* Set params */ - err = tda665x_write(state, buf, 5); - if (err < 0) - goto exit; - - /* sleep for some time */ - printk(KERN_DEBUG "%s: Waiting to Phase LOCK\n", __func__); - msleep(20); - /* check status */ - err = tda665x_get_status(fe, &status); - if (err < 0) - goto exit; - - if (status == 1) { - printk(KERN_DEBUG "%s: Tuner Phase locked: status=%d\n", __func__, status); - state->frequency = frequency; /* cache successful state */ - } else { - printk(KERN_ERR "%s: No Phase lock: status=%d\n", __func__, status); - } - } else { - printk(KERN_ERR "%s: Unknown parameter (param=%d)\n", __func__, param); - return -EINVAL; - } - - return 0; -exit: - printk(KERN_ERR "%s: I/O Error\n", __func__); - return err; -} - -static int tda665x_release(struct dvb_frontend *fe) -{ - struct tda665x_state *state = fe->tuner_priv; - - fe->tuner_priv = NULL; - kfree(state); - return 0; -} - -static struct dvb_tuner_ops tda665x_ops = { - - .set_state = tda665x_set_state, - .get_state = tda665x_get_state, - .get_status = tda665x_get_status, - .release = tda665x_release -}; - -struct dvb_frontend *tda665x_attach(struct dvb_frontend *fe, - const struct tda665x_config *config, - struct i2c_adapter *i2c) -{ - struct tda665x_state *state = NULL; - struct dvb_tuner_info *info; - - state = kzalloc(sizeof(struct tda665x_state), GFP_KERNEL); - if (state == NULL) - goto exit; - - state->config = config; - state->i2c = i2c; - state->fe = fe; - fe->tuner_priv = state; - fe->ops.tuner_ops = tda665x_ops; - info = &fe->ops.tuner_ops.info; - - memcpy(info->name, config->name, sizeof(config->name)); - info->frequency_min = config->frequency_min; - info->frequency_max = config->frequency_max; - info->frequency_step = config->frequency_offst; - - printk(KERN_DEBUG "%s: Attaching TDA665x (%s) tuner\n", __func__, info->name); - - return fe; - -exit: - kfree(state); - return NULL; -} -EXPORT_SYMBOL(tda665x_attach); - -MODULE_DESCRIPTION("TDA665x driver"); -MODULE_AUTHOR("Manu Abraham"); -MODULE_LICENSE("GPL"); |