diff options
Diffstat (limited to 'drivers/media/dvb/b2c2/flexcop-fe-tuner.c')
-rw-r--r-- | drivers/media/dvb/b2c2/flexcop-fe-tuner.c | 685 |
1 files changed, 685 insertions, 0 deletions
diff --git a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c new file mode 100644 index 0000000..5cded37 --- /dev/null +++ b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c @@ -0,0 +1,685 @@ +/* + * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III + * + * flexcop-fe-tuner.c - methods for attaching a frontend and controlling DiSEqC. + * + * see flexcop.c for copyright information. + */ +#include <media/tuner.h> + +#include "flexcop.h" + +#include "stv0299.h" +#include "mt352.h" +#include "nxt200x.h" +#include "bcm3510.h" +#include "stv0297.h" +#include "mt312.h" +#include "lgdt330x.h" +#include "dvb-pll.h" +#include "tuner-simple.h" + +#include "s5h1420.h" +#include "itd1000.h" + +#include "cx24123.h" +#include "cx24113.h" + +#include "isl6421.h" + +/* lnb control */ + +static int flexcop_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage) +{ + struct flexcop_device *fc = fe->dvb->priv; + flexcop_ibi_value v; + deb_tuner("polarity/voltage = %u\n", voltage); + + v = fc->read_ibi_reg(fc, misc_204); + switch (voltage) { + case SEC_VOLTAGE_OFF: + v.misc_204.ACPI1_sig = 1; + break; + case SEC_VOLTAGE_13: + v.misc_204.ACPI1_sig = 0; + v.misc_204.LNB_L_H_sig = 0; + break; + case SEC_VOLTAGE_18: + v.misc_204.ACPI1_sig = 0; + v.misc_204.LNB_L_H_sig = 1; + break; + default: + err("unknown SEC_VOLTAGE value"); + return -EINVAL; + } + return fc->write_ibi_reg(fc, misc_204, v); +} + +static int flexcop_sleep(struct dvb_frontend* fe) +{ + struct flexcop_device *fc = fe->dvb->priv; +/* flexcop_ibi_value v = fc->read_ibi_reg(fc,misc_204); */ + + if (fc->fe_sleep) + return fc->fe_sleep(fe); + +/* v.misc_204.ACPI3_sig = 1; + fc->write_ibi_reg(fc,misc_204,v);*/ + + return 0; +} + +static int flexcop_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) +{ + /* u16 wz_half_period_for_45_mhz[] = { 0x01ff, 0x0154, 0x00ff, 0x00cc }; */ + struct flexcop_device *fc = fe->dvb->priv; + flexcop_ibi_value v; + u16 ax; + v.raw = 0; + + deb_tuner("tone = %u\n",tone); + + switch (tone) { + case SEC_TONE_ON: + ax = 0x01ff; + break; + case SEC_TONE_OFF: + ax = 0; + break; + default: + err("unknown SEC_TONE value"); + return -EINVAL; + } + + v.lnb_switch_freq_200.LNB_CTLPrescaler_sig = 1; /* divide by 2 */ + + v.lnb_switch_freq_200.LNB_CTLHighCount_sig = ax; + v.lnb_switch_freq_200.LNB_CTLLowCount_sig = ax == 0 ? 0x1ff : ax; + + return fc->write_ibi_reg(fc,lnb_switch_freq_200,v); +} + +static void flexcop_diseqc_send_bit(struct dvb_frontend* fe, int data) +{ + flexcop_set_tone(fe, SEC_TONE_ON); + udelay(data ? 500 : 1000); + flexcop_set_tone(fe, SEC_TONE_OFF); + udelay(data ? 1000 : 500); +} + +static void flexcop_diseqc_send_byte(struct dvb_frontend* fe, int data) +{ + int i, par = 1, d; + + for (i = 7; i >= 0; i--) { + d = (data >> i) & 1; + par ^= d; + flexcop_diseqc_send_bit(fe, d); + } + + flexcop_diseqc_send_bit(fe, par); +} + +static int flexcop_send_diseqc_msg(struct dvb_frontend* fe, int len, u8 *msg, unsigned long burst) +{ + int i; + + flexcop_set_tone(fe, SEC_TONE_OFF); + mdelay(16); + + for (i = 0; i < len; i++) + flexcop_diseqc_send_byte(fe,msg[i]); + + mdelay(16); + + if (burst != -1) { + if (burst) + flexcop_diseqc_send_byte(fe, 0xff); + else { + flexcop_set_tone(fe, SEC_TONE_ON); + mdelay(12); + udelay(500); + flexcop_set_tone(fe, SEC_TONE_OFF); + } + msleep(20); + } + return 0; +} + +static int flexcop_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd) +{ + return flexcop_send_diseqc_msg(fe, cmd->msg_len, cmd->msg, 0); +} + +static int flexcop_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd) +{ + return flexcop_send_diseqc_msg(fe, 0, NULL, minicmd); +} + +/* dvb-s stv0299 */ +static int samsung_tbmu24112_set_symbol_rate(struct dvb_frontend* fe, u32 srate, u32 ratio) +{ + u8 aclk = 0; + u8 bclk = 0; + + if (srate < 1500000) { aclk = 0xb7; bclk = 0x47; } + else if (srate < 3000000) { aclk = 0xb7; bclk = 0x4b; } + else if (srate < 7000000) { aclk = 0xb7; bclk = 0x4f; } + else if (srate < 14000000) { aclk = 0xb7; bclk = 0x53; } + else if (srate < 30000000) { aclk = 0xb6; bclk = 0x53; } + else if (srate < 45000000) { aclk = 0xb4; bclk = 0x51; } + + stv0299_writereg (fe, 0x13, aclk); + stv0299_writereg (fe, 0x14, bclk); + stv0299_writereg (fe, 0x1f, (ratio >> 16) & 0xff); + stv0299_writereg (fe, 0x20, (ratio >> 8) & 0xff); + stv0299_writereg (fe, 0x21, (ratio ) & 0xf0); + + return 0; +} + +static int samsung_tbmu24112_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters *params) +{ + u8 buf[4]; + u32 div; + struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) }; + struct flexcop_device *fc = fe->dvb->priv; + + div = params->frequency / 125; + + buf[0] = (div >> 8) & 0x7f; + buf[1] = div & 0xff; + buf[2] = 0x84; /* 0xC4 */ + buf[3] = 0x08; + + if (params->frequency < 1500000) + buf[3] |= 0x10; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if (i2c_transfer(&fc->fc_i2c_adap[0].i2c_adap, &msg, 1) != 1) + return -EIO; + return 0; +} + +static u8 samsung_tbmu24112_inittab[] = { + 0x01, 0x15, + 0x02, 0x30, + 0x03, 0x00, + 0x04, 0x7D, + 0x05, 0x35, + 0x06, 0x02, + 0x07, 0x00, + 0x08, 0xC3, + 0x0C, 0x00, + 0x0D, 0x81, + 0x0E, 0x23, + 0x0F, 0x12, + 0x10, 0x7E, + 0x11, 0x84, + 0x12, 0xB9, + 0x13, 0x88, + 0x14, 0x89, + 0x15, 0xC9, + 0x16, 0x00, + 0x17, 0x5C, + 0x18, 0x00, + 0x19, 0x00, + 0x1A, 0x00, + 0x1C, 0x00, + 0x1D, 0x00, + 0x1E, 0x00, + 0x1F, 0x3A, + 0x20, 0x2E, + 0x21, 0x80, + 0x22, 0xFF, + 0x23, 0xC1, + 0x28, 0x00, + 0x29, 0x1E, + 0x2A, 0x14, + 0x2B, 0x0F, + 0x2C, 0x09, + 0x2D, 0x05, + 0x31, 0x1F, + 0x32, 0x19, + 0x33, 0xFE, + 0x34, 0x93, + 0xff, 0xff, +}; + +static struct stv0299_config samsung_tbmu24112_config = { + .demod_address = 0x68, + .inittab = samsung_tbmu24112_inittab, + .mclk = 88000000UL, + .invert = 0, + .skip_reinit = 0, + .lock_output = STV0299_LOCKOUTPUT_LK, + .volt13_op0_op1 = STV0299_VOLT13_OP1, + .min_delay_ms = 100, + .set_symbol_rate = samsung_tbmu24112_set_symbol_rate, +}; + +/* dvb-t mt352 */ +static int samsung_tdtc9251dh0_demod_init(struct dvb_frontend* fe) +{ + static u8 mt352_clock_config [] = { 0x89, 0x18, 0x2d }; + static u8 mt352_reset [] = { 0x50, 0x80 }; + static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 }; + static u8 mt352_agc_cfg [] = { 0x67, 0x28, 0xa1 }; + static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 }; + + mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config)); + udelay(2000); + mt352_write(fe, mt352_reset, sizeof(mt352_reset)); + mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg)); + + mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg)); + mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg)); + + return 0; +} + +static int samsung_tdtc9251dh0_calc_regs(struct dvb_frontend* fe, struct dvb_frontend_parameters *params, u8* pllbuf, int buf_len) +{ + u32 div; + unsigned char bs = 0; + + if (buf_len < 5) + return -EINVAL; + + #define IF_FREQUENCYx6 217 /* 6 * 36.16666666667MHz */ + div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6; + + if (params->frequency >= 48000000 && params->frequency <= 154000000) bs = 0x09; + if (params->frequency >= 161000000 && params->frequency <= 439000000) bs = 0x0a; + if (params->frequency >= 447000000 && params->frequency <= 863000000) bs = 0x08; + + pllbuf[0] = 0x61; + pllbuf[1] = div >> 8; + pllbuf[2] = div & 0xff; + pllbuf[3] = 0xcc; + pllbuf[4] = bs; + + return 5; +} + +static struct mt352_config samsung_tdtc9251dh0_config = { + .demod_address = 0x0f, + .demod_init = samsung_tdtc9251dh0_demod_init, +}; + +static int flexcop_fe_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name) +{ + struct flexcop_device *fc = fe->dvb->priv; + return request_firmware(fw, name, fc->dev); +} + +static struct lgdt330x_config air2pc_atsc_hd5000_config = { + .demod_address = 0x59, + .demod_chip = LGDT3303, + .serial_mpeg = 0x04, + .clock_polarity_flip = 1, +}; + +static struct nxt200x_config samsung_tbmv_config = { + .demod_address = 0x0a, +}; + +static struct bcm3510_config air2pc_atsc_first_gen_config = { + .demod_address = 0x0f, + .request_firmware = flexcop_fe_request_firmware, +}; + +static int skystar23_samsung_tbdu18132_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters *params) +{ + u8 buf[4]; + u32 div; + struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) }; + struct flexcop_device *fc = fe->dvb->priv; + + div = (params->frequency + (125/2)) / 125; + + buf[0] = (div >> 8) & 0x7f; + buf[1] = (div >> 0) & 0xff; + buf[2] = 0x84 | ((div >> 10) & 0x60); + buf[3] = 0x80; + + if (params->frequency < 1550000) + buf[3] |= 0x02; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if (i2c_transfer(&fc->fc_i2c_adap[0].i2c_adap, &msg, 1) != 1) + return -EIO; + return 0; +} + +static struct mt312_config skystar23_samsung_tbdu18132_config = { + + .demod_address = 0x0e, +}; + +static int alps_tdee4_stv0297_tuner_set_params(struct dvb_frontend* fe, + struct dvb_frontend_parameters *fep) +{ + struct flexcop_device *fc = fe->dvb->priv; + u8 buf[4]; + u16 div; + int ret; + +/* 62.5 kHz * 10 */ +#define REF_FREQ 625 +#define FREQ_OFFSET 36125 + + div = ((fep->frequency/1000 + FREQ_OFFSET ) * 10) / REF_FREQ; // 4 MHz = 4000 KHz + + buf[0] = (u8)( div >> 8) & 0x7f; + buf[1] = (u8) div & 0xff; + +/* F(osc) = N * Reference Freq. (62.5 kHz) + * byte 2 : 0 N14 N13 N12 N11 N10 N9 N8 + * byte 3 : N7 N6 N5 N4 N3 N2 N1 N0 + * byte 4 : 1 * * AGD R3 R2 R1 R0 + * byte 5 : C1 * RE RTS BS4 BS3 BS2 BS1 + * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95 */ + buf[2] = 0x95; + +// Range(MHz) C1 * RE RTS BS4 BS3 BS2 BS1 Byte 5 +// 47 - 153 0 * 0 0 0 0 0 1 0x01 +// 153 - 430 0 * 0 0 0 0 1 0 0x02 +// 430 - 822 0 * 0 0 1 0 0 0 0x08 +// 822 - 862 1 * 0 0 1 0 0 0 0x88 + + if (fep->frequency <= 153000000) buf[3] = 0x01; + else if (fep->frequency <= 430000000) buf[3] = 0x02; + else if (fep->frequency <= 822000000) buf[3] = 0x08; + else buf[3] = 0x88; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + deb_tuner("tuner buffer for %d Hz: %x %x %x %x\n",fep->frequency, buf[0],buf[1],buf[2],buf[3]); + ret = fc->i2c_request(&fc->fc_i2c_adap[2], + FC_WRITE, 0x61, buf[0], &buf[1], 3); + deb_tuner("tuner write returned: %d\n",ret); + + return ret; +} + +static u8 alps_tdee4_stv0297_inittab[] = { + 0x80, 0x01, + 0x80, 0x00, + 0x81, 0x01, + 0x81, 0x00, + 0x00, 0x48, + 0x01, 0x58, + 0x03, 0x00, + 0x04, 0x00, + 0x07, 0x00, + 0x08, 0x00, + 0x30, 0xff, + 0x31, 0x9d, + 0x32, 0xff, + 0x33, 0x00, + 0x34, 0x29, + 0x35, 0x55, + 0x36, 0x80, + 0x37, 0x6e, + 0x38, 0x9c, + 0x40, 0x1a, + 0x41, 0xfe, + 0x42, 0x33, + 0x43, 0x00, + 0x44, 0xff, + 0x45, 0x00, + 0x46, 0x00, + 0x49, 0x04, + 0x4a, 0x51, + 0x4b, 0xf8, + 0x52, 0x30, + 0x53, 0x06, + 0x59, 0x06, + 0x5a, 0x5e, + 0x5b, 0x04, + 0x61, 0x49, + 0x62, 0x0a, + 0x70, 0xff, + 0x71, 0x04, + 0x72, 0x00, + 0x73, 0x00, + 0x74, 0x0c, + 0x80, 0x20, + 0x81, 0x00, + 0x82, 0x30, + 0x83, 0x00, + 0x84, 0x04, + 0x85, 0x22, + 0x86, 0x08, + 0x87, 0x1b, + 0x88, 0x00, + 0x89, 0x00, + 0x90, 0x00, + 0x91, 0x04, + 0xa0, 0x86, + 0xa1, 0x00, + 0xa2, 0x00, + 0xb0, 0x91, + 0xb1, 0x0b, + 0xc0, 0x5b, + 0xc1, 0x10, + 0xc2, 0x12, + 0xd0, 0x02, + 0xd1, 0x00, + 0xd2, 0x00, + 0xd3, 0x00, + 0xd4, 0x02, + 0xd5, 0x00, + 0xde, 0x00, + 0xdf, 0x01, + 0xff, 0xff, +}; + +static struct stv0297_config alps_tdee4_stv0297_config = { + .demod_address = 0x1c, + .inittab = alps_tdee4_stv0297_inittab, +// .invert = 1, +// .pll_set = alps_tdee4_stv0297_pll_set, +}; + + +/* SkyStar2 rev2.7 (a/u) */ +static struct s5h1420_config skystar2_rev2_7_s5h1420_config = { + .demod_address = 0x53, + .invert = 1, + .repeated_start_workaround = 1, + .serial_mpeg = 1, +}; + +static struct itd1000_config skystar2_rev2_7_itd1000_config = { + .i2c_address = 0x61, +}; + +/* SkyStar2 rev2.8 */ +static struct cx24123_config skystar2_rev2_8_cx24123_config = { + .demod_address = 0x55, + .dont_use_pll = 1, + .agc_callback = cx24113_agc_callback, +}; + +static const struct cx24113_config skystar2_rev2_8_cx24113_config = { + .i2c_addr = 0x54, + .xtal_khz = 10111, +}; + +/* try to figure out the frontend, each card/box can have on of the following list */ +int flexcop_frontend_init(struct flexcop_device *fc) +{ + struct dvb_frontend_ops *ops; + struct i2c_adapter *i2c = &fc->fc_i2c_adap[0].i2c_adap; + struct i2c_adapter *i2c_tuner; + + /* enable no_base_addr - no repeated start when reading */ + fc->fc_i2c_adap[0].no_base_addr = 1; + fc->fe = dvb_attach(s5h1420_attach, &skystar2_rev2_7_s5h1420_config, i2c); + if (fc->fe != NULL) { + flexcop_ibi_value r108; + i2c_tuner = s5h1420_get_tuner_i2c_adapter(fc->fe); + ops = &fc->fe->ops; + + fc->fe_sleep = ops->sleep; + ops->sleep = flexcop_sleep; + + fc->dev_type = FC_SKY_REV27; + + /* enable no_base_addr - no repeated start when reading */ + fc->fc_i2c_adap[2].no_base_addr = 1; + if (dvb_attach(isl6421_attach, fc->fe, &fc->fc_i2c_adap[2].i2c_adap, 0x08, 1, 1) == NULL) + err("ISL6421 could NOT be attached"); + else + info("ISL6421 successfully attached"); + + /* the ITD1000 requires a lower i2c clock - it slows down the stuff for everyone - but is it a problem ? */ + r108.raw = 0x00000506; + fc->write_ibi_reg(fc, tw_sm_c_108, r108); + if (i2c_tuner) { + if (dvb_attach(itd1000_attach, fc->fe, i2c_tuner, &skystar2_rev2_7_itd1000_config) == NULL) + err("ITD1000 could NOT be attached"); + else + info("ITD1000 successfully attached"); + } + goto fe_found; + } + fc->fc_i2c_adap[0].no_base_addr = 0; /* for the next devices we need it again */ + + /* try the sky v2.8 (cx24123, isl6421) */ + fc->fe = dvb_attach(cx24123_attach, + &skystar2_rev2_8_cx24123_config, i2c); + if (fc->fe != NULL) { + i2c_tuner = cx24123_get_tuner_i2c_adapter(fc->fe); + if (i2c_tuner != NULL) { + if (dvb_attach(cx24113_attach, fc->fe, + &skystar2_rev2_8_cx24113_config, + i2c_tuner) == NULL) + err("CX24113 could NOT be attached"); + else + info("CX24113 successfully attached"); + } + + fc->dev_type = FC_SKY_REV28; + + fc->fc_i2c_adap[2].no_base_addr = 1; + if (dvb_attach(isl6421_attach, fc->fe, + &fc->fc_i2c_adap[2].i2c_adap, 0x08, 0, 0) == NULL) + err("ISL6421 could NOT be attached"); + else + info("ISL6421 successfully attached"); + + /* TODO on i2c_adap[1] addr 0x11 (EEPROM) there seems to be an + * IR-receiver (PIC16F818) - but the card has no input for + * that ??? */ + + goto fe_found; + } + + /* try the sky v2.6 (stv0299/Samsung tbmu24112(sl1935)) */ + fc->fe = dvb_attach(stv0299_attach, &samsung_tbmu24112_config, i2c); + if (fc->fe != NULL) { + ops = &fc->fe->ops; + + ops->tuner_ops.set_params = samsung_tbmu24112_tuner_set_params; + + ops->set_voltage = flexcop_set_voltage; + + fc->fe_sleep = ops->sleep; + ops->sleep = flexcop_sleep; + + fc->dev_type = FC_SKY; + goto fe_found; + } + + /* try the air dvb-t (mt352/Samsung tdtc9251dh0(??)) */ + fc->fe = dvb_attach(mt352_attach, &samsung_tdtc9251dh0_config, i2c); + if (fc->fe != NULL) { + fc->dev_type = FC_AIR_DVB; + fc->fe->ops.tuner_ops.calc_regs = samsung_tdtc9251dh0_calc_regs; + goto fe_found; + } + + /* try the air atsc 2nd generation (nxt2002) */ + fc->fe = dvb_attach(nxt200x_attach, &samsung_tbmv_config, i2c); + if (fc->fe != NULL) { + fc->dev_type = FC_AIR_ATSC2; + dvb_attach(dvb_pll_attach, fc->fe, 0x61, NULL, DVB_PLL_SAMSUNG_TBMV); + goto fe_found; + } + + fc->fe = dvb_attach(lgdt330x_attach, &air2pc_atsc_hd5000_config, i2c); + if (fc->fe != NULL) { + fc->dev_type = FC_AIR_ATSC3; + dvb_attach(simple_tuner_attach, fc->fe, i2c, 0x61, + TUNER_LG_TDVS_H06XF); + goto fe_found; + } + + /* try the air atsc 1nd generation (bcm3510)/panasonic ct10s */ + fc->fe = dvb_attach(bcm3510_attach, &air2pc_atsc_first_gen_config, i2c); + if (fc->fe != NULL) { + fc->dev_type = FC_AIR_ATSC1; + goto fe_found; + } + + /* try the cable dvb (stv0297) */ + fc->fc_i2c_adap[0].no_base_addr = 1; + fc->fe = dvb_attach(stv0297_attach, &alps_tdee4_stv0297_config, i2c); + if (fc->fe != NULL) { + fc->dev_type = FC_CABLE; + fc->fe->ops.tuner_ops.set_params = alps_tdee4_stv0297_tuner_set_params; + goto fe_found; + } + fc->fc_i2c_adap[0].no_base_addr = 0; + + /* try the sky v2.3 (vp310/Samsung tbdu18132(tsa5059)) */ + fc->fe = dvb_attach(mt312_attach, + &skystar23_samsung_tbdu18132_config, i2c); + if (fc->fe != NULL) { + ops = &fc->fe->ops; + + ops->tuner_ops.set_params = skystar23_samsung_tbdu18132_tuner_set_params; + + ops->diseqc_send_master_cmd = flexcop_diseqc_send_master_cmd; + ops->diseqc_send_burst = flexcop_diseqc_send_burst; + ops->set_tone = flexcop_set_tone; + ops->set_voltage = flexcop_set_voltage; + + fc->fe_sleep = ops->sleep; + ops->sleep = flexcop_sleep; + + fc->dev_type = FC_SKY_OLD; + goto fe_found; + } + + err("no frontend driver found for this B2C2/FlexCop adapter"); + return -ENODEV; + +fe_found: + info("found '%s' .", fc->fe->ops.info.name); + if (dvb_register_frontend(&fc->dvb_adapter, fc->fe)) { + err("frontend registration failed!"); + ops = &fc->fe->ops; + if (ops->release != NULL) + ops->release(fc->fe); + fc->fe = NULL; + return -EINVAL; + } + fc->init_state |= FC_STATE_FE_INIT; + return 0; +} + +void flexcop_frontend_exit(struct flexcop_device *fc) +{ + if (fc->init_state & FC_STATE_FE_INIT) { + dvb_unregister_frontend(fc->fe); + dvb_frontend_detach(fc->fe); + } + + fc->init_state &= ~FC_STATE_FE_INIT; +} |