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Diffstat (limited to 'linux/drivers/media/dvb/frontends/grundig_29504-401.c')
-rw-r--r--linux/drivers/media/dvb/frontends/grundig_29504-401.c749
1 files changed, 0 insertions, 749 deletions
diff --git a/linux/drivers/media/dvb/frontends/grundig_29504-401.c b/linux/drivers/media/dvb/frontends/grundig_29504-401.c
deleted file mode 100644
index 731dea0b4..000000000
--- a/linux/drivers/media/dvb/frontends/grundig_29504-401.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/*
- driver for Grundig 29504-401 DVB-T Frontends based on
- LSI L64781 COFDM demodulator as used in Technotrend DVB-T cards
-
- Copyright (C) 2001 Holger Waechtler <holger@convergence.de>
- for Convergence Integrated Media GmbH
- Marko Kohtala <marko.kohtala@luukku.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/moduleparam.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-
-#include "dvb_frontend.h"
-
-#define FRONTEND_NAME "dvbfe_l64781"
-
-#define dprintk(args...) \
- do { \
- if (debug) printk(KERN_DEBUG FRONTEND_NAME ": " args); \
- } while (0)
-
-static int debug;
-static int old_set_tv_freq;
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
-module_param(old_set_tv_freq, int, 0644);
-MODULE_PARM_DESC(old_set_tv_freq, "Use old tsa5060_set_tv_freq calculations.");
-
-struct l64781_state {
- int first:1;
- struct i2c_adapter *i2c;
- struct dvb_adapter *dvb;
-};
-
-struct dvb_frontend_info l64781_info = {
- .name = "Grundig 29504-401 (LSI L64781 Based)",
- .type = FE_OFDM,
-/* .frequency_min = ???,*/
-/* .frequency_max = ???,*/
- .frequency_stepsize = 166666,
-/* .frequency_tolerance = ???,*/
-/* .symbol_rate_tolerance = ???,*/
- .notifier_delay = 0,
- .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
- FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
- FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
- FE_CAN_MUTE_TS
-};
-
-
-static int l64781_writereg (struct i2c_adapter *i2c, u8 reg, u8 data)
-{
- int ret;
- u8 buf [] = { reg, data };
- struct i2c_msg msg = { .addr = 0x55, .flags = 0, .buf = buf, .len = 2 };
-
- if ((ret = i2c_transfer(i2c, &msg, 1)) != 1)
- dprintk ("%s: write_reg error (reg == %02x) = %02x!\n",
- __FUNCTION__, reg, ret);
-
- return (ret != 1) ? -1 : 0;
-}
-
-
-static u8 l64781_readreg (struct i2c_adapter *i2c, u8 reg)
-{
- int ret;
- u8 b0 [] = { reg };
- u8 b1 [] = { 0 };
- struct i2c_msg msg [] = { { .addr = 0x55, .flags = 0, .buf = b0, .len = 1 },
- { .addr = 0x55, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
-
- ret = i2c_transfer(i2c, msg, 2);
-
- if (ret != 2)
- dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
-
- return b1[0];
-}
-
-
-static int tsa5060_write (struct i2c_adapter *i2c, u8 data [4])
-{
- int ret;
- struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = 4 };
-
- if ((ret = i2c_transfer(i2c, &msg, 1)) != 1)
- dprintk ("%s: write_reg error == %02x!\n", __FUNCTION__, ret);
-
- return (ret != 1) ? -1 : 0;
-}
-
-
-/**
- * set up the downconverter frequency divisor for a
- * reference clock comparision frequency of 166666 Hz.
- * frequency offset is 36125000 Hz.
- */
-static int tsa5060_set_tv_freq (struct i2c_adapter *i2c, u32 freq)
-{
- u32 div;
- u8 buf [4];
- u8 cfg, cpump, band_select;
-
- if (old_set_tv_freq)
- div = (36000000 + freq) / 166666;
- else
- div = (36125000 + freq) / 166666;
-
- cfg = 0x88;
-
- cpump = freq < 175000000 ? 2 : freq < 390000000 ? 1 :
- freq < 470000000 ? 2 : freq < 750000000 ? 1 : 3;
-
- band_select = freq < 175000000 ? 0x0e : freq < 470000000 ? 0x05 : 0x03;
-
- buf [0] = (div >> 8) & 0x7f;
- buf [1] = div & 0xff;
- buf [2] = ((div >> 10) & 0x60) | cfg;
-
- if (old_set_tv_freq)
- buf [3] = 0xc0;
- else
- buf [3] = (cpump << 6) | band_select;
-
- return tsa5060_write(i2c, buf);
-}
-
-
-
-static void apply_tps (struct i2c_adapter *i2c)
-{
- l64781_writereg (i2c, 0x2a, 0x00);
- l64781_writereg (i2c, 0x2a, 0x01);
-
- /* This here is a little bit questionable because it enables
- the automatic update of TPS registers. I think we'd need to
- handle the IRQ from FE to update some other registers as
- well, or at least implement some magic to tuning to correct
- to the TPS received from transmission. */
- l64781_writereg (i2c, 0x2a, 0x02);
-}
-
-
-static void reset_afc (struct i2c_adapter *i2c)
-{
- /* Set AFC stall for the AFC_INIT_FRQ setting, TIM_STALL for
- timing offset */
- l64781_writereg (i2c, 0x07, 0x9e); /* stall AFC */
- l64781_writereg (i2c, 0x08, 0); /* AFC INIT FREQ */
- l64781_writereg (i2c, 0x09, 0);
- l64781_writereg (i2c, 0x0a, 0);
- l64781_writereg (i2c, 0x07, 0x8e);
- l64781_writereg (i2c, 0x0e, 0); /* AGC gain to zero in beginning */
- l64781_writereg (i2c, 0x11, 0x80); /* stall TIM */
- l64781_writereg (i2c, 0x10, 0); /* TIM_OFFSET_LSB */
- l64781_writereg (i2c, 0x12, 0);
- l64781_writereg (i2c, 0x13, 0);
- l64781_writereg (i2c, 0x11, 0x00);
-}
-
-
-static int apply_frontend_param (struct i2c_adapter *i2c,
- struct dvb_frontend_parameters *param)
-{
- /* The coderates for FEC_NONE, FEC_4_5 and FEC_FEC_6_7 are arbitrary */
- static const u8 fec_tab[] = { 7, 0, 1, 2, 9, 3, 10, 4 };
- /* QPSK, QAM_16, QAM_64 */
- static const u8 qam_tab [] = { 2, 4, 0, 6 };
- static const u8 bw_tab [] = { 8, 7, 6 }; /* 8Mhz, 7MHz, 6MHz */
- static const u8 guard_tab [] = { 1, 2, 4, 8 };
- /* The Grundig 29504-401.04 Tuner comes with 18.432MHz crystal. */
- static const u32 ppm = 8000;
- struct dvb_ofdm_parameters *p = &param->u.ofdm;
- u32 ddfs_offset_fixed;
-/* u32 ddfs_offset_variable = 0x6000-((1000000UL+ppm)/ */
-/* bw_tab[p->bandWidth]<<10)/15625; */
- u32 init_freq;
- u32 spi_bias;
- u8 val0x04;
- u8 val0x05;
- u8 val0x06;
- int bw = p->bandwidth - BANDWIDTH_8_MHZ;
-
- if (param->inversion != INVERSION_ON &&
- param->inversion != INVERSION_OFF)
- return -EINVAL;
-
- if (bw < 0 || bw > 2)
- return -EINVAL;
-
- if (p->code_rate_HP != FEC_1_2 && p->code_rate_HP != FEC_2_3 &&
- p->code_rate_HP != FEC_3_4 && p->code_rate_HP != FEC_5_6 &&
- p->code_rate_HP != FEC_7_8)
- return -EINVAL;
-
- if (p->hierarchy_information != HIERARCHY_NONE &&
- (p->code_rate_LP != FEC_1_2 && p->code_rate_LP != FEC_2_3 &&
- p->code_rate_LP != FEC_3_4 && p->code_rate_LP != FEC_5_6 &&
- p->code_rate_LP != FEC_7_8))
- return -EINVAL;
-
- if (p->constellation != QPSK && p->constellation != QAM_16 &&
- p->constellation != QAM_64)
- return -EINVAL;
-
- if (p->transmission_mode != TRANSMISSION_MODE_2K &&
- p->transmission_mode != TRANSMISSION_MODE_8K)
- return -EINVAL;
-
- if (p->guard_interval < GUARD_INTERVAL_1_32 ||
- p->guard_interval > GUARD_INTERVAL_1_4)
- return -EINVAL;
-
- if (p->hierarchy_information < HIERARCHY_NONE ||
- p->hierarchy_information > HIERARCHY_4)
- return -EINVAL;
-
- ddfs_offset_fixed = 0x4000-(ppm<<16)/bw_tab[p->bandwidth]/1000000;
-
- /* This works up to 20000 ppm, it overflows if too large ppm! */
- init_freq = (((8UL<<25) + (8UL<<19) / 25*ppm / (15625/25)) /
- bw_tab[p->bandwidth] & 0xFFFFFF);
-
- /* SPI bias calculation is slightly modified to fit in 32bit */
- /* will work for high ppm only... */
- spi_bias = 378 * (1 << 10);
- spi_bias *= 16;
- spi_bias *= bw_tab[p->bandwidth];
- spi_bias *= qam_tab[p->constellation];
- spi_bias /= p->code_rate_HP + 1;
- spi_bias /= (guard_tab[p->guard_interval] + 32);
- spi_bias *= 1000ULL;
- spi_bias /= 1000ULL + ppm/1000;
- spi_bias *= p->code_rate_HP;
-
- val0x04 = (p->transmission_mode << 2) | p->guard_interval;
- val0x05 = fec_tab[p->code_rate_HP];
-
- if (p->hierarchy_information != HIERARCHY_NONE)
- val0x05 |= (p->code_rate_LP - FEC_1_2) << 3;
-
- val0x06 = (p->hierarchy_information << 2) | p->constellation;
-
- l64781_writereg (i2c, 0x04, val0x04);
- l64781_writereg (i2c, 0x05, val0x05);
- l64781_writereg (i2c, 0x06, val0x06);
-
- reset_afc (i2c);
-
- /* Technical manual section 2.6.1, TIM_IIR_GAIN optimal values */
- l64781_writereg (i2c, 0x15,
- p->transmission_mode == TRANSMISSION_MODE_2K ? 1 : 3);
- l64781_writereg (i2c, 0x16, init_freq & 0xff);
- l64781_writereg (i2c, 0x17, (init_freq >> 8) & 0xff);
- l64781_writereg (i2c, 0x18, (init_freq >> 16) & 0xff);
-
- l64781_writereg (i2c, 0x1b, spi_bias & 0xff);
- l64781_writereg (i2c, 0x1c, (spi_bias >> 8) & 0xff);
- l64781_writereg (i2c, 0x1d, ((spi_bias >> 16) & 0x7f) |
- (param->inversion == INVERSION_ON ? 0x80 : 0x00));
-
- l64781_writereg (i2c, 0x22, ddfs_offset_fixed & 0xff);
- l64781_writereg (i2c, 0x23, (ddfs_offset_fixed >> 8) & 0x3f);
-
- l64781_readreg (i2c, 0x00); /* clear interrupt registers... */
- l64781_readreg (i2c, 0x01); /* dto. */
-
- apply_tps (i2c);
-
- return 0;
-}
-
-
-static int reset_and_configure (struct i2c_adapter *i2c)
-{
- u8 buf [] = { 0x06 };
- struct i2c_msg msg = { .addr = 0x00, .flags = 0, .buf = buf, .len = 1 };
-
- return (i2c_transfer(i2c, &msg, 1) == 1) ? 0 : -ENODEV;
-}
-
-
-static int get_frontend(struct i2c_adapter* i2c, struct dvb_frontend_parameters* param)
-{
- int tmp;
-
-
- tmp = l64781_readreg(i2c, 0x04);
- switch(tmp & 3) {
- case 0:
- param->u.ofdm.guard_interval = GUARD_INTERVAL_1_32;
- break;
- case 1:
- param->u.ofdm.guard_interval = GUARD_INTERVAL_1_16;
- break;
- case 2:
- param->u.ofdm.guard_interval = GUARD_INTERVAL_1_8;
- break;
- case 3:
- param->u.ofdm.guard_interval = GUARD_INTERVAL_1_4;
- break;
- }
- switch((tmp >> 2) & 3) {
- case 0:
- param->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K;
- break;
- case 1:
- param->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K;
- break;
- default:
- printk("Unexpected value for transmission_mode\n");
- }
-
-
-
- tmp = l64781_readreg(i2c, 0x05);
- switch(tmp & 7) {
- case 0:
- param->u.ofdm.code_rate_HP = FEC_1_2;
- break;
- case 1:
- param->u.ofdm.code_rate_HP = FEC_2_3;
- break;
- case 2:
- param->u.ofdm.code_rate_HP = FEC_3_4;
- break;
- case 3:
- param->u.ofdm.code_rate_HP = FEC_5_6;
- break;
- case 4:
- param->u.ofdm.code_rate_HP = FEC_7_8;
- break;
- default:
- printk("Unexpected value for code_rate_HP\n");
- }
- switch((tmp >> 3) & 7) {
- case 0:
- param->u.ofdm.code_rate_LP = FEC_1_2;
- break;
- case 1:
- param->u.ofdm.code_rate_LP = FEC_2_3;
- break;
- case 2:
- param->u.ofdm.code_rate_LP = FEC_3_4;
- break;
- case 3:
- param->u.ofdm.code_rate_LP = FEC_5_6;
- break;
- case 4:
- param->u.ofdm.code_rate_LP = FEC_7_8;
- break;
- default:
- printk("Unexpected value for code_rate_LP\n");
- }
-
-
- tmp = l64781_readreg(i2c, 0x06);
- switch(tmp & 3) {
- case 0:
- param->u.ofdm.constellation = QPSK;
- break;
- case 1:
- param->u.ofdm.constellation = QAM_16;
- break;
- case 2:
- param->u.ofdm.constellation = QAM_64;
- break;
- default:
- printk("Unexpected value for constellation\n");
- }
- switch((tmp >> 2) & 7) {
- case 0:
- param->u.ofdm.hierarchy_information = HIERARCHY_NONE;
- break;
- case 1:
- param->u.ofdm.hierarchy_information = HIERARCHY_1;
- break;
- case 2:
- param->u.ofdm.hierarchy_information = HIERARCHY_2;
- break;
- case 3:
- param->u.ofdm.hierarchy_information = HIERARCHY_4;
- break;
- default:
- printk("Unexpected value for hierarchy\n");
- }
-
-
- tmp = l64781_readreg (i2c, 0x1d);
- param->inversion = (tmp & 0x80) ? INVERSION_ON : INVERSION_OFF;
-
- tmp = (int) (l64781_readreg (i2c, 0x08) |
- (l64781_readreg (i2c, 0x09) << 8) |
- (l64781_readreg (i2c, 0x0a) << 16));
- param->frequency += tmp;
-
- return 0;
-}
-
-
-static int init (struct i2c_adapter *i2c)
-{
- reset_and_configure (i2c);
-
- /* Power up */
- l64781_writereg (i2c, 0x3e, 0xa5);
-
- /* Reset hard */
- l64781_writereg (i2c, 0x2a, 0x04);
- l64781_writereg (i2c, 0x2a, 0x00);
-
- /* Set tuner specific things */
- /* AFC_POL, set also in reset_afc */
- l64781_writereg (i2c, 0x07, 0x8e);
-
- /* Use internal ADC */
- l64781_writereg (i2c, 0x0b, 0x81);
-
- /* AGC loop gain, and polarity is positive */
- l64781_writereg (i2c, 0x0c, 0x84);
-
- /* Internal ADC outputs two's complement */
- l64781_writereg (i2c, 0x0d, 0x8c);
-
- /* With ppm=8000, it seems the DTR_SENSITIVITY will result in
- value of 2 with all possible bandwidths and guard
- intervals, which is the initial value anyway. */
- /*l64781_writereg (i2c, 0x19, 0x92);*/
-
- /* Everything is two's complement, soft bit and CSI_OUT too */
- l64781_writereg (i2c, 0x1e, 0x09);
-
- return 0;
-}
-
-
-static
-int l64781_ioctl (struct dvb_frontend *fe,
- unsigned int cmd, void *arg)
-{
- struct l64781_state* state = fe->data;
- struct i2c_adapter *i2c = state->i2c;
- int res;
-
- switch (cmd) {
- case FE_GET_INFO:
- memcpy (arg, &l64781_info,
- sizeof(struct dvb_frontend_info));
- break;
-
- case FE_READ_STATUS:
- {
- fe_status_t *status = (fe_status_t *) arg;
- int sync = l64781_readreg (i2c, 0x32);
- int gain = l64781_readreg (i2c, 0x0e);
-
- l64781_readreg (i2c, 0x00); /* clear interrupt registers... */
- l64781_readreg (i2c, 0x01); /* dto. */
-
- *status = 0;
-
- if (gain > 5)
- *status |= FE_HAS_SIGNAL;
-
- if (sync & 0x02) /* VCXO locked, this criteria should be ok */
- *status |= FE_HAS_CARRIER;
-
- if (sync & 0x20)
- *status |= FE_HAS_VITERBI;
-
- if (sync & 0x40)
- *status |= FE_HAS_SYNC;
-
- if (sync == 0x7f)
- *status |= FE_HAS_LOCK;
-
- break;
- }
-
- case FE_READ_BER:
- {
- /* XXX FIXME: set up counting period (reg 0x26...0x28)
- */
- u32 *ber = (u32 *) arg;
- *ber = l64781_readreg (i2c, 0x39)
- | (l64781_readreg (i2c, 0x3a) << 8);
- break;
- }
-
- case FE_READ_SIGNAL_STRENGTH:
- {
- u8 gain = l64781_readreg (i2c, 0x0e);
- *(u16 *) arg = (gain << 8) | gain;
- break;
- }
-
- case FE_READ_SNR:
- {
- u16 *snr = (u16 *) arg;
- u8 avg_quality = 0xff - l64781_readreg (i2c, 0x33);
- *snr = (avg_quality << 8) | avg_quality; /* not exact, but...*/
- break;
- }
-
- case FE_READ_UNCORRECTED_BLOCKS:
- {
- u32 *ub = (u32 *) arg;
- *ub = l64781_readreg (i2c, 0x37)
- | (l64781_readreg (i2c, 0x38) << 8);
- break;
- }
-
- case FE_SET_FRONTEND:
- {
- struct dvb_frontend_parameters *p = arg;
-
- tsa5060_set_tv_freq (i2c, p->frequency);
- return apply_frontend_param (i2c, p);
- }
-
- case FE_GET_FRONTEND:
- {
- struct dvb_frontend_parameters *p = arg;
- return get_frontend(i2c, p);
- }
-
- case FE_SLEEP:
- /* Power down */
- return l64781_writereg (i2c, 0x3e, 0x5a);
-
- case FE_INIT:
- res = init (i2c);
- if ((res == 0) && (state->first)) {
- state->first = 0;
- msleep(200);
- }
- return res;
-
- case FE_GET_TUNE_SETTINGS:
- {
- struct dvb_frontend_tune_settings* fesettings = (struct dvb_frontend_tune_settings*) arg;
- fesettings->min_delay_ms = 200;
- fesettings->step_size = 166667;
- fesettings->max_drift = 166667*2;
- return 0;
- }
-
- default:
- dprintk ("%s: unknown command !!!\n", __FUNCTION__);
- return -EINVAL;
- };
-
- return 0;
-}
-
-static int l64781_probe(struct i2c_adapter *i2c)
-{
- u8 reg0x3e;
- u8 b0 [] = { 0x1a };
- u8 b1 [] = { 0x00 };
- struct i2c_msg msg [] = { { .addr = 0x55, .flags = 0, .buf = b0, .len = 1 },
- { .addr = 0x55, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
-
- /**
- * the L64781 won't show up before we send the reset_and_configure()
- * broadcast. If nothing responds there is no L64781 on the bus...
- */
- if (reset_and_configure(i2c) < 0) {
- dprintk("No response to reset and configure broadcast...\n");
- return -ENODEV;
- }
-
- /* The chip always responds to reads */
- if (i2c_transfer(i2c, msg, 2) != 2) {
- dprintk("No response to read on I2C bus\n");
- return -ENODEV;
- }
-
- /* Save current register contents for bailout */
- reg0x3e = l64781_readreg(i2c, 0x3e);
-
- /* Reading the POWER_DOWN register always returns 0 */
- if (reg0x3e != 0) {
- dprintk("Device doesn't look like L64781\n");
- return -ENODEV;
- }
-
- /* Turn the chip off */
- l64781_writereg (i2c, 0x3e, 0x5a);
-
- /* Responds to all reads with 0 */
- if (l64781_readreg(i2c, 0x1a) != 0) {
- dprintk("Read 1 returned unexpcted value\n");
- goto out;
- }
-
- /* Turn the chip on */
- l64781_writereg (i2c, 0x3e, 0xa5);
-
- /* Responds with register default value */
- if (l64781_readreg(i2c, 0x1a) != 0xa1) {
- dprintk("Read 2 returned unexpcted value\n");
- goto out;
- }
-
- return 0;
-out:
- l64781_writereg (i2c, 0x3e, reg0x3e); /* restore reg 0x3e */
- return -ENODEV;
-}
-
-static struct i2c_client client_template;
-
-static int l64781_attach_adapter(struct i2c_adapter *adapter)
-{
- struct l64781_state *state;
- struct i2c_client *client;
- int ret;
-
- dprintk("Trying to attach to adapter 0x%x:%s.\n",
- adapter->id, adapter->name);
-
- if ((ret = l64781_probe(adapter)))
- return ret;
-
- if ( !(state = kmalloc(sizeof(struct l64781_state), GFP_KERNEL)) )
- return -ENOMEM;
-
- memset(state, 0, sizeof(struct l64781_state));
- state->i2c = adapter;
- state->first = 1;
-
- if ( !(client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)) ) {
- kfree(state);
- return -ENOMEM;
- }
-
- 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(l64781_ioctl, state->dvb, state,
- &l64781_info, THIS_MODULE))) {
- i2c_detach_client(client);
- kfree(state);
- kfree(client);
- return ret;
- }
-
- return 0;
-}
-
-static int l64781_detach_client(struct i2c_client *client)
-{
- struct l64781_state *state = i2c_get_clientdata(client);
-
- dvb_unregister_frontend(l64781_ioctl, state->dvb);
- i2c_detach_client(client);
- BUG_ON(state->dvb);
- kfree(client);
- kfree(state);
- return 0;
-}
-
-static int l64781_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
-{
- struct l64781_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_L64781,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = l64781_attach_adapter,
- .detach_client = l64781_detach_client,
- .command = l64781_command,
-};
-
-static struct i2c_client client_template = {
- .name = FRONTEND_NAME,
- .flags = I2C_CLIENT_ALLOW_USE,
- .driver = &driver,
-};
-
-static int __init init_l64781 (void)
-{
- return i2c_add_driver(&driver);
-}
-
-static void __exit exit_l64781 (void)
-{
- if (i2c_del_driver(&driver))
- printk(KERN_ERR "l64781: driver deregistration failed\n");
-}
-
-module_init(init_l64781);
-module_exit(exit_l64781);
-
-MODULE_DESCRIPTION("Grundig 29504-401 DVB-T Frontend (LSI L64781 Based)");
-MODULE_AUTHOR("Holger Waechtler, Marko Kohtala");
-MODULE_LICENSE("GPL");
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-21 12:07:57 +0000