diff options
Diffstat (limited to 'drivers/media/dvb/frontends/stv6110x.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stv6110x.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/drivers/media/dvb/frontends/stv6110x.c b/drivers/media/dvb/frontends/stv6110x.c deleted file mode 100644 index f36cab12bdc7..000000000000 --- a/drivers/media/dvb/frontends/stv6110x.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - STV6110(A) Silicon tuner driver - - Copyright (C) Manu Abraham <abraham.manu@gmail.com> - - Copyright (C) ST Microelectronics - - 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 <linux/string.h> - -#include "dvb_frontend.h" - -#include "stv6110x_reg.h" -#include "stv6110x.h" -#include "stv6110x_priv.h" - -static unsigned int verbose; -module_param(verbose, int, 0644); -MODULE_PARM_DESC(verbose, "Set Verbosity level"); - -static int stv6110x_read_reg(struct stv6110x_state *stv6110x, u8 reg, u8 *data) -{ - int ret; - const struct stv6110x_config *config = stv6110x->config; - u8 b0[] = { reg }; - u8 b1[] = { 0 }; - struct i2c_msg msg[] = { - { .addr = config->addr, .flags = 0, .buf = b0, .len = 1 }, - { .addr = config->addr, .flags = I2C_M_RD, .buf = b1, .len = 1 } - }; - - ret = i2c_transfer(stv6110x->i2c, msg, 2); - if (ret != 2) { - dprintk(FE_ERROR, 1, "I/O Error"); - return -EREMOTEIO; - } - *data = b1[0]; - - return 0; -} - -static int stv6110x_write_regs(struct stv6110x_state *stv6110x, int start, u8 data[], int len) -{ - int ret; - const struct stv6110x_config *config = stv6110x->config; - u8 buf[len + 1]; - struct i2c_msg msg = { - .addr = config->addr, - .flags = 0, - .buf = buf, - .len = len + 1 - }; - - if (start + len > 8) - return -EINVAL; - - buf[0] = start; - memcpy(&buf[1], data, len); - - ret = i2c_transfer(stv6110x->i2c, &msg, 1); - if (ret != 1) { - dprintk(FE_ERROR, 1, "I/O Error"); - return -EREMOTEIO; - } - - return 0; -} - -static int stv6110x_write_reg(struct stv6110x_state *stv6110x, u8 reg, u8 data) -{ - return stv6110x_write_regs(stv6110x, reg, &data, 1); -} - -static int stv6110x_init(struct dvb_frontend *fe) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - int ret; - - ret = stv6110x_write_regs(stv6110x, 0, stv6110x->regs, - ARRAY_SIZE(stv6110x->regs)); - if (ret < 0) { - dprintk(FE_ERROR, 1, "Initialization failed"); - return -1; - } - - return 0; -} - -static int stv6110x_set_frequency(struct dvb_frontend *fe, u32 frequency) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - u32 rDiv, divider; - s32 pVal, pCalc, rDivOpt = 0, pCalcOpt = 1000; - u8 i; - - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_K, (REFCLOCK_MHz - 16)); - - if (frequency <= 1023000) { - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 1); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 0); - pVal = 40; - } else if (frequency <= 1300000) { - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 1); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 1); - pVal = 40; - } else if (frequency <= 2046000) { - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 0); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 0); - pVal = 20; - } else { - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_DIV4SEL, 0); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_PRESC32_ON, 1); - pVal = 20; - } - - for (rDiv = 0; rDiv <= 3; rDiv++) { - pCalc = (REFCLOCK_kHz / 100) / R_DIV(rDiv); - - if ((abs((s32)(pCalc - pVal))) < (abs((s32)(pCalcOpt - pVal)))) - rDivOpt = rDiv; - - pCalcOpt = (REFCLOCK_kHz / 100) / R_DIV(rDivOpt); - } - - divider = (frequency * R_DIV(rDivOpt) * pVal) / REFCLOCK_kHz; - divider = (divider + 5) / 10; - - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_R_DIV, rDivOpt); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG1], TNG1_N_DIV_11_8, MSB(divider)); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_TNG0], TNG0_N_DIV_7_0, LSB(divider)); - - /* VCO Auto calibration */ - STV6110x_SETFIELD(stv6110x->regs[STV6110x_STAT1], STAT1_CALVCO_STRT, 1); - - stv6110x_write_reg(stv6110x, STV6110x_CTRL1, stv6110x->regs[STV6110x_CTRL1]); - stv6110x_write_reg(stv6110x, STV6110x_TNG1, stv6110x->regs[STV6110x_TNG1]); - stv6110x_write_reg(stv6110x, STV6110x_TNG0, stv6110x->regs[STV6110x_TNG0]); - stv6110x_write_reg(stv6110x, STV6110x_STAT1, stv6110x->regs[STV6110x_STAT1]); - - for (i = 0; i < TRIALS; i++) { - stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x->regs[STV6110x_STAT1]); - if (!STV6110x_GETFIELD(STAT1_CALVCO_STRT, stv6110x->regs[STV6110x_STAT1])) - break; - msleep(1); - } - - return 0; -} - -static int stv6110x_get_frequency(struct dvb_frontend *fe, u32 *frequency) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - - stv6110x_read_reg(stv6110x, STV6110x_TNG1, &stv6110x->regs[STV6110x_TNG1]); - stv6110x_read_reg(stv6110x, STV6110x_TNG0, &stv6110x->regs[STV6110x_TNG0]); - - *frequency = (MAKEWORD16(STV6110x_GETFIELD(TNG1_N_DIV_11_8, stv6110x->regs[STV6110x_TNG1]), - STV6110x_GETFIELD(TNG0_N_DIV_7_0, stv6110x->regs[STV6110x_TNG0]))) * REFCLOCK_kHz; - - *frequency /= (1 << (STV6110x_GETFIELD(TNG1_R_DIV, stv6110x->regs[STV6110x_TNG1]) + - STV6110x_GETFIELD(TNG1_DIV4SEL, stv6110x->regs[STV6110x_TNG1]))); - - *frequency >>= 2; - - return 0; -} - -static int stv6110x_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - u32 halfbw; - u8 i; - - halfbw = bandwidth >> 1; - - if (halfbw > 36000000) - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_CF, 31); /* LPF */ - else if (halfbw < 5000000) - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_CF, 0); /* LPF */ - else - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_CF, ((halfbw / 1000000) - 5)); /* LPF */ - - - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_RCCLK_OFF, 0x0); /* cal. clk activated */ - STV6110x_SETFIELD(stv6110x->regs[STV6110x_STAT1], STAT1_CALRC_STRT, 0x1); /* LPF auto cal */ - - stv6110x_write_reg(stv6110x, STV6110x_CTRL3, stv6110x->regs[STV6110x_CTRL3]); - stv6110x_write_reg(stv6110x, STV6110x_STAT1, stv6110x->regs[STV6110x_STAT1]); - - for (i = 0; i < TRIALS; i++) { - stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x->regs[STV6110x_STAT1]); - if (!STV6110x_GETFIELD(STAT1_CALRC_STRT, stv6110x->regs[STV6110x_STAT1])) - break; - msleep(1); - } - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL3], CTRL3_RCCLK_OFF, 0x1); /* cal. done */ - stv6110x_write_reg(stv6110x, STV6110x_CTRL3, stv6110x->regs[STV6110x_CTRL3]); - - return 0; -} - -static int stv6110x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - - stv6110x_read_reg(stv6110x, STV6110x_CTRL3, &stv6110x->regs[STV6110x_CTRL3]); - *bandwidth = (STV6110x_GETFIELD(CTRL3_CF, stv6110x->regs[STV6110x_CTRL3]) + 5) * 2000000; - - return 0; -} - -static int stv6110x_set_refclock(struct dvb_frontend *fe, u32 refclock) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - - /* setup divider */ - switch (refclock) { - default: - case 1: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 0); - break; - case 2: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 1); - break; - case 4: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 2); - break; - case 8: - case 0: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 3); - break; - } - stv6110x_write_reg(stv6110x, STV6110x_CTRL2, stv6110x->regs[STV6110x_CTRL2]); - - return 0; -} - -static int stv6110x_get_bbgain(struct dvb_frontend *fe, u32 *gain) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - - stv6110x_read_reg(stv6110x, STV6110x_CTRL2, &stv6110x->regs[STV6110x_CTRL2]); - *gain = 2 * STV6110x_GETFIELD(CTRL2_BBGAIN, stv6110x->regs[STV6110x_CTRL2]); - - return 0; -} - -static int stv6110x_set_bbgain(struct dvb_frontend *fe, u32 gain) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_BBGAIN, gain / 2); - stv6110x_write_reg(stv6110x, STV6110x_CTRL2, stv6110x->regs[STV6110x_CTRL2]); - - return 0; -} - -static int stv6110x_set_mode(struct dvb_frontend *fe, enum tuner_mode mode) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - int ret; - - switch (mode) { - case TUNER_SLEEP: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_SYN, 0); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_RX, 0); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_LPT, 0); - break; - - case TUNER_WAKE: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_SYN, 1); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_RX, 1); - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL1], CTRL1_LPT, 1); - break; - } - - ret = stv6110x_write_reg(stv6110x, STV6110x_CTRL1, stv6110x->regs[STV6110x_CTRL1]); - if (ret < 0) { - dprintk(FE_ERROR, 1, "I/O Error"); - return -EIO; - } - - return 0; -} - -static int stv6110x_sleep(struct dvb_frontend *fe) -{ - if (fe->tuner_priv) - return stv6110x_set_mode(fe, TUNER_SLEEP); - - return 0; -} - -static int stv6110x_get_status(struct dvb_frontend *fe, u32 *status) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - - stv6110x_read_reg(stv6110x, STV6110x_STAT1, &stv6110x->regs[STV6110x_STAT1]); - - if (STV6110x_GETFIELD(STAT1_LOCK, stv6110x->regs[STV6110x_STAT1])) - *status = TUNER_PHASELOCKED; - else - *status = 0; - - return 0; -} - - -static int stv6110x_release(struct dvb_frontend *fe) -{ - struct stv6110x_state *stv6110x = fe->tuner_priv; - - fe->tuner_priv = NULL; - kfree(stv6110x); - - return 0; -} - -static struct dvb_tuner_ops stv6110x_ops = { - .info = { - .name = "STV6110(A) Silicon Tuner", - .frequency_min = 950000, - .frequency_max = 2150000, - .frequency_step = 0, - }, - .release = stv6110x_release -}; - -static struct stv6110x_devctl stv6110x_ctl = { - .tuner_init = stv6110x_init, - .tuner_sleep = stv6110x_sleep, - .tuner_set_mode = stv6110x_set_mode, - .tuner_set_frequency = stv6110x_set_frequency, - .tuner_get_frequency = stv6110x_get_frequency, - .tuner_set_bandwidth = stv6110x_set_bandwidth, - .tuner_get_bandwidth = stv6110x_get_bandwidth, - .tuner_set_bbgain = stv6110x_set_bbgain, - .tuner_get_bbgain = stv6110x_get_bbgain, - .tuner_set_refclk = stv6110x_set_refclock, - .tuner_get_status = stv6110x_get_status, -}; - -struct stv6110x_devctl *stv6110x_attach(struct dvb_frontend *fe, - const struct stv6110x_config *config, - struct i2c_adapter *i2c) -{ - struct stv6110x_state *stv6110x; - u8 default_regs[] = {0x07, 0x11, 0xdc, 0x85, 0x17, 0x01, 0xe6, 0x1e}; - - stv6110x = kzalloc(sizeof (struct stv6110x_state), GFP_KERNEL); - if (!stv6110x) - return NULL; - - stv6110x->i2c = i2c; - stv6110x->config = config; - stv6110x->devctl = &stv6110x_ctl; - memcpy(stv6110x->regs, default_regs, 8); - - /* setup divider */ - switch (stv6110x->config->clk_div) { - default: - case 1: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 0); - break; - case 2: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 1); - break; - case 4: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 2); - break; - case 8: - case 0: - STV6110x_SETFIELD(stv6110x->regs[STV6110x_CTRL2], CTRL2_CO_DIV, 3); - break; - } - - fe->tuner_priv = stv6110x; - fe->ops.tuner_ops = stv6110x_ops; - - printk(KERN_INFO "%s: Attaching STV6110x\n", __func__); - return stv6110x->devctl; -} -EXPORT_SYMBOL(stv6110x_attach); - -MODULE_AUTHOR("Manu Abraham"); -MODULE_DESCRIPTION("STV6110x Silicon tuner"); -MODULE_LICENSE("GPL"); |