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path: root/drivers/media/dvb/frontends/au8522.c
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Diffstat (limited to 'drivers/media/dvb/frontends/au8522.c')
-rw-r--r--drivers/media/dvb/frontends/au8522.c874
1 files changed, 0 insertions, 874 deletions
diff --git a/drivers/media/dvb/frontends/au8522.c b/drivers/media/dvb/frontends/au8522.c
deleted file mode 100644
index eabf9a68e7ec..000000000000
--- a/drivers/media/dvb/frontends/au8522.c
+++ /dev/null
@@ -1,874 +0,0 @@
-/*
- Auvitek AU8522 QAM/8VSB demodulator driver
-
- Copyright (C) 2008 Steven Toth <stoth@linuxtv.org>
-
- 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/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include "dvb_frontend.h"
-#include "au8522.h"
-
-struct au8522_state {
-
- struct i2c_adapter *i2c;
-
- /* configuration settings */
- const struct au8522_config *config;
-
- struct dvb_frontend frontend;
-
- u32 current_frequency;
- fe_modulation_t current_modulation;
-
- u32 fe_status;
- unsigned int led_state;
-};
-
-static int debug;
-
-#define dprintk(arg...) do { \
- if (debug) \
- printk(arg); \
- } while (0)
-
-/* 16 bit registers, 8 bit values */
-static int au8522_writereg(struct au8522_state *state, u16 reg, u8 data)
-{
- int ret;
- u8 buf [] = { reg >> 8, reg & 0xff, data };
-
- struct i2c_msg msg = { .addr = state->config->demod_address,
- .flags = 0, .buf = buf, .len = 3 };
-
- ret = i2c_transfer(state->i2c, &msg, 1);
-
- if (ret != 1)
- printk("%s: writereg error (reg == 0x%02x, val == 0x%04x, "
- "ret == %i)\n", __func__, reg, data, ret);
-
- return (ret != 1) ? -1 : 0;
-}
-
-static u8 au8522_readreg(struct au8522_state *state, u16 reg)
-{
- int ret;
- u8 b0 [] = { reg >> 8, reg & 0xff };
- u8 b1 [] = { 0 };
-
- struct i2c_msg msg [] = {
- { .addr = state->config->demod_address, .flags = 0,
- .buf = b0, .len = 2 },
- { .addr = state->config->demod_address, .flags = I2C_M_RD,
- .buf = b1, .len = 1 } };
-
- ret = i2c_transfer(state->i2c, msg, 2);
-
- if (ret != 2)
- printk(KERN_ERR "%s: readreg error (ret == %i)\n",
- __func__, ret);
- return b1[0];
-}
-
-static int au8522_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
-{
- struct au8522_state *state = fe->demodulator_priv;
-
- dprintk("%s(%d)\n", __func__, enable);
-
- if (enable)
- return au8522_writereg(state, 0x106, 1);
- else
- return au8522_writereg(state, 0x106, 0);
-}
-
-struct mse2snr_tab {
- u16 val;
- u16 data;
-};
-
-/* VSB SNR lookup table */
-static struct mse2snr_tab vsb_mse2snr_tab[] = {
- { 0, 270 },
- { 2, 250 },
- { 3, 240 },
- { 5, 230 },
- { 7, 220 },
- { 9, 210 },
- { 12, 200 },
- { 13, 195 },
- { 15, 190 },
- { 17, 185 },
- { 19, 180 },
- { 21, 175 },
- { 24, 170 },
- { 27, 165 },
- { 31, 160 },
- { 32, 158 },
- { 33, 156 },
- { 36, 152 },
- { 37, 150 },
- { 39, 148 },
- { 40, 146 },
- { 41, 144 },
- { 43, 142 },
- { 44, 140 },
- { 48, 135 },
- { 50, 130 },
- { 43, 142 },
- { 53, 125 },
- { 56, 120 },
- { 256, 115 },
-};
-
-/* QAM64 SNR lookup table */
-static struct mse2snr_tab qam64_mse2snr_tab[] = {
- { 15, 0 },
- { 16, 290 },
- { 17, 288 },
- { 18, 286 },
- { 19, 284 },
- { 20, 282 },
- { 21, 281 },
- { 22, 279 },
- { 23, 277 },
- { 24, 275 },
- { 25, 273 },
- { 26, 271 },
- { 27, 269 },
- { 28, 268 },
- { 29, 266 },
- { 30, 264 },
- { 31, 262 },
- { 32, 260 },
- { 33, 259 },
- { 34, 258 },
- { 35, 256 },
- { 36, 255 },
- { 37, 254 },
- { 38, 252 },
- { 39, 251 },
- { 40, 250 },
- { 41, 249 },
- { 42, 248 },
- { 43, 246 },
- { 44, 245 },
- { 45, 244 },
- { 46, 242 },
- { 47, 241 },
- { 48, 240 },
- { 50, 239 },
- { 51, 238 },
- { 53, 237 },
- { 54, 236 },
- { 56, 235 },
- { 57, 234 },
- { 59, 233 },
- { 60, 232 },
- { 62, 231 },
- { 63, 230 },
- { 65, 229 },
- { 67, 228 },
- { 68, 227 },
- { 70, 226 },
- { 71, 225 },
- { 73, 224 },
- { 74, 223 },
- { 76, 222 },
- { 78, 221 },
- { 80, 220 },
- { 82, 219 },
- { 85, 218 },
- { 88, 217 },
- { 90, 216 },
- { 92, 215 },
- { 93, 214 },
- { 94, 212 },
- { 95, 211 },
- { 97, 210 },
- { 99, 209 },
- { 101, 208 },
- { 102, 207 },
- { 104, 206 },
- { 107, 205 },
- { 111, 204 },
- { 114, 203 },
- { 118, 202 },
- { 122, 201 },
- { 125, 200 },
- { 128, 199 },
- { 130, 198 },
- { 132, 197 },
- { 256, 190 },
-};
-
-/* QAM256 SNR lookup table */
-static struct mse2snr_tab qam256_mse2snr_tab[] = {
- { 16, 0 },
- { 17, 400 },
- { 18, 398 },
- { 19, 396 },
- { 20, 394 },
- { 21, 392 },
- { 22, 390 },
- { 23, 388 },
- { 24, 386 },
- { 25, 384 },
- { 26, 382 },
- { 27, 380 },
- { 28, 379 },
- { 29, 378 },
- { 30, 377 },
- { 31, 376 },
- { 32, 375 },
- { 33, 374 },
- { 34, 373 },
- { 35, 372 },
- { 36, 371 },
- { 37, 370 },
- { 38, 362 },
- { 39, 354 },
- { 40, 346 },
- { 41, 338 },
- { 42, 330 },
- { 43, 328 },
- { 44, 326 },
- { 45, 324 },
- { 46, 322 },
- { 47, 320 },
- { 48, 319 },
- { 49, 318 },
- { 50, 317 },
- { 51, 316 },
- { 52, 315 },
- { 53, 314 },
- { 54, 313 },
- { 55, 312 },
- { 56, 311 },
- { 57, 310 },
- { 58, 308 },
- { 59, 306 },
- { 60, 304 },
- { 61, 302 },
- { 62, 300 },
- { 63, 298 },
- { 65, 295 },
- { 68, 294 },
- { 70, 293 },
- { 73, 292 },
- { 76, 291 },
- { 78, 290 },
- { 79, 289 },
- { 81, 288 },
- { 82, 287 },
- { 83, 286 },
- { 84, 285 },
- { 85, 284 },
- { 86, 283 },
- { 88, 282 },
- { 89, 281 },
- { 256, 280 },
-};
-
-static int au8522_mse2snr_lookup(struct mse2snr_tab *tab, int sz, int mse,
- u16 *snr)
-{
- int i, ret = -EINVAL;
- dprintk("%s()\n", __func__);
-
- for (i = 0; i < sz; i++) {
- if (mse < tab[i].val) {
- *snr = tab[i].data;
- ret = 0;
- break;
- }
- }
- dprintk("%s() snr=%d\n", __func__, *snr);
- return ret;
-}
-
-static int au8522_set_if(struct dvb_frontend *fe, enum au8522_if_freq if_freq)
-{
- struct au8522_state *state = fe->demodulator_priv;
- u8 r0b5, r0b6, r0b7;
- char *ifmhz;
-
- switch (if_freq) {
- case AU8522_IF_3_25MHZ:
- ifmhz = "3.25";
- r0b5 = 0x00;
- r0b6 = 0x3d;
- r0b7 = 0xa0;
- break;
- case AU8522_IF_4MHZ:
- ifmhz = "4.00";
- r0b5 = 0x00;
- r0b6 = 0x4b;
- r0b7 = 0xd9;
- break;
- case AU8522_IF_6MHZ:
- ifmhz = "6.00";
- r0b5 = 0xfb;
- r0b6 = 0x8e;
- r0b7 = 0x39;
- break;
- default:
- dprintk("%s() IF Frequency not supported\n", __func__);
- return -EINVAL;
- }
- dprintk("%s() %s MHz\n", __func__, ifmhz);
- au8522_writereg(state, 0x80b5, r0b5);
- au8522_writereg(state, 0x80b6, r0b6);
- au8522_writereg(state, 0x80b7, r0b7);
-
- return 0;
-}
-
-/* VSB Modulation table */
-static struct {
- u16 reg;
- u16 data;
-} VSB_mod_tab[] = {
- { 0x8090, 0x84 },
- { 0x4092, 0x11 },
- { 0x2005, 0x00 },
- { 0x8091, 0x80 },
- { 0x80a3, 0x0c },
- { 0x80a4, 0xe8 },
- { 0x8081, 0xc4 },
- { 0x80a5, 0x40 },
- { 0x80a7, 0x40 },
- { 0x80a6, 0x67 },
- { 0x8262, 0x20 },
- { 0x821c, 0x30 },
- { 0x80d8, 0x1a },
- { 0x8227, 0xa0 },
- { 0x8121, 0xff },
- { 0x80a8, 0xf0 },
- { 0x80a9, 0x05 },
- { 0x80aa, 0x77 },
- { 0x80ab, 0xf0 },
- { 0x80ac, 0x05 },
- { 0x80ad, 0x77 },
- { 0x80ae, 0x41 },
- { 0x80af, 0x66 },
- { 0x821b, 0xcc },
- { 0x821d, 0x80 },
- { 0x80a4, 0xe8 },
- { 0x8231, 0x13 },
-};
-
-/* QAM Modulation table */
-static struct {
- u16 reg;
- u16 data;
-} QAM_mod_tab[] = {
- { 0x80a3, 0x09 },
- { 0x80a4, 0x00 },
- { 0x8081, 0xc4 },
- { 0x80a5, 0x40 },
- { 0x80aa, 0x77 },
- { 0x80ad, 0x77 },
- { 0x80a6, 0x67 },
- { 0x8262, 0x20 },
- { 0x821c, 0x30 },
- { 0x80b8, 0x3e },
- { 0x80b9, 0xf0 },
- { 0x80ba, 0x01 },
- { 0x80bb, 0x18 },
- { 0x80bc, 0x50 },
- { 0x80bd, 0x00 },
- { 0x80be, 0xea },
- { 0x80bf, 0xef },
- { 0x80c0, 0xfc },
- { 0x80c1, 0xbd },
- { 0x80c2, 0x1f },
- { 0x80c3, 0xfc },
- { 0x80c4, 0xdd },
- { 0x80c5, 0xaf },
- { 0x80c6, 0x00 },
- { 0x80c7, 0x38 },
- { 0x80c8, 0x30 },
- { 0x80c9, 0x05 },
- { 0x80ca, 0x4a },
- { 0x80cb, 0xd0 },
- { 0x80cc, 0x01 },
- { 0x80cd, 0xd9 },
- { 0x80ce, 0x6f },
- { 0x80cf, 0xf9 },
- { 0x80d0, 0x70 },
- { 0x80d1, 0xdf },
- { 0x80d2, 0xf7 },
- { 0x80d3, 0xc2 },
- { 0x80d4, 0xdf },
- { 0x80d5, 0x02 },
- { 0x80d6, 0x9a },
- { 0x80d7, 0xd0 },
- { 0x8250, 0x0d },
- { 0x8251, 0xcd },
- { 0x8252, 0xe0 },
- { 0x8253, 0x05 },
- { 0x8254, 0xa7 },
- { 0x8255, 0xff },
- { 0x8256, 0xed },
- { 0x8257, 0x5b },
- { 0x8258, 0xae },
- { 0x8259, 0xe6 },
- { 0x825a, 0x3d },
- { 0x825b, 0x0f },
- { 0x825c, 0x0d },
- { 0x825d, 0xea },
- { 0x825e, 0xf2 },
- { 0x825f, 0x51 },
- { 0x8260, 0xf5 },
- { 0x8261, 0x06 },
- { 0x821a, 0x00 },
- { 0x8546, 0x40 },
- { 0x8210, 0x26 },
- { 0x8211, 0xf6 },
- { 0x8212, 0x84 },
- { 0x8213, 0x02 },
- { 0x8502, 0x01 },
- { 0x8121, 0x04 },
- { 0x8122, 0x04 },
- { 0x852e, 0x10 },
- { 0x80a4, 0xca },
- { 0x80a7, 0x40 },
- { 0x8526, 0x01 },
-};
-
-static int au8522_enable_modulation(struct dvb_frontend *fe,
- fe_modulation_t m)
-{
- struct au8522_state *state = fe->demodulator_priv;
- int i;
-
- dprintk("%s(0x%08x)\n", __func__, m);
-
- switch (m) {
- case VSB_8:
- dprintk("%s() VSB_8\n", __func__);
- for (i = 0; i < ARRAY_SIZE(VSB_mod_tab); i++)
- au8522_writereg(state,
- VSB_mod_tab[i].reg,
- VSB_mod_tab[i].data);
- au8522_set_if(fe, state->config->vsb_if);
- break;
- case QAM_64:
- case QAM_256:
- dprintk("%s() QAM 64/256\n", __func__);
- for (i = 0; i < ARRAY_SIZE(QAM_mod_tab); i++)
- au8522_writereg(state,
- QAM_mod_tab[i].reg,
- QAM_mod_tab[i].data);
- au8522_set_if(fe, state->config->qam_if);
- break;
- default:
- dprintk("%s() Invalid modulation\n", __func__);
- return -EINVAL;
- }
-
- state->current_modulation = m;
-
- return 0;
-}
-
-/* Talk to the demod, set the FEC, GUARD, QAM settings etc */
-static int au8522_set_frontend(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *p)
-{
- struct au8522_state *state = fe->demodulator_priv;
- int ret = -EINVAL;
-
- dprintk("%s(frequency=%d)\n", __func__, p->frequency);
-
- if ((state->current_frequency == p->frequency) &&
- (state->current_modulation == p->u.vsb.modulation))
- return 0;
-
- au8522_enable_modulation(fe, p->u.vsb.modulation);
-
- /* Allow the demod to settle */
- msleep(100);
-
- if (fe->ops.tuner_ops.set_params) {
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
- ret = fe->ops.tuner_ops.set_params(fe, p);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- }
-
- if (ret < 0)
- return ret;
-
- state->current_frequency = p->frequency;
-
- return 0;
-}
-
-/* Reset the demod hardware and reset all of the configuration registers
- to a default state. */
-static int au8522_init(struct dvb_frontend *fe)
-{
- struct au8522_state *state = fe->demodulator_priv;
- dprintk("%s()\n", __func__);
-
- au8522_writereg(state, 0xa4, 1 << 5);
-
- au8522_i2c_gate_ctrl(fe, 1);
-
- return 0;
-}
-
-static int au8522_led_gpio_enable(struct au8522_state *state, int onoff)
-{
- struct au8522_led_config *led_config = state->config->led_cfg;
- u8 val;
-
- /* bail out if we cant control an LED */
- if (!led_config || !led_config->gpio_output ||
- !led_config->gpio_output_enable || !led_config->gpio_output_disable)
- return 0;
-
- val = au8522_readreg(state, 0x4000 |
- (led_config->gpio_output & ~0xc000));
- if (onoff) {
- /* enable GPIO output */
- val &= ~((led_config->gpio_output_enable >> 8) & 0xff);
- val |= (led_config->gpio_output_enable & 0xff);
- } else {
- /* disable GPIO output */
- val &= ~((led_config->gpio_output_disable >> 8) & 0xff);
- val |= (led_config->gpio_output_disable & 0xff);
- }
- return au8522_writereg(state, 0x8000 |
- (led_config->gpio_output & ~0xc000), val);
-}
-
-/* led = 0 | off
- * led = 1 | signal ok
- * led = 2 | signal strong
- * led < 0 | only light led if leds are currently off
- */
-static int au8522_led_ctrl(struct au8522_state *state, int led)
-{
- struct au8522_led_config *led_config = state->config->led_cfg;
- int i, ret = 0;
-
- /* bail out if we cant control an LED */
- if (!led_config || !led_config->gpio_leds ||
- !led_config->num_led_states || !led_config->led_states)
- return 0;
-
- if (led < 0) {
- /* if LED is already lit, then leave it as-is */
- if (state->led_state)
- return 0;
- else
- led *= -1;
- }
-
- /* toggle LED if changing state */
- if (state->led_state != led) {
- u8 val;
-
- dprintk("%s: %d\n", __func__, led);
-
- au8522_led_gpio_enable(state, 1);
-
- val = au8522_readreg(state, 0x4000 |
- (led_config->gpio_leds & ~0xc000));
-
- /* start with all leds off */
- for (i = 0; i < led_config->num_led_states; i++)
- val &= ~led_config->led_states[i];
-
- /* set selected LED state */
- if (led < led_config->num_led_states)
- val |= led_config->led_states[led];
- else if (led_config->num_led_states)
- val |=
- led_config->led_states[led_config->num_led_states - 1];
-
- ret = au8522_writereg(state, 0x8000 |
- (led_config->gpio_leds & ~0xc000), val);
- if (ret < 0)
- return ret;
-
- state->led_state = led;
-
- if (led == 0)
- au8522_led_gpio_enable(state, 0);
- }
-
- return 0;
-}
-
-static int au8522_sleep(struct dvb_frontend *fe)
-{
- struct au8522_state *state = fe->demodulator_priv;
- dprintk("%s()\n", __func__);
-
- /* turn off led */
- au8522_led_ctrl(state, 0);
-
- state->current_frequency = 0;
-
- return 0;
-}
-
-static int au8522_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct au8522_state *state = fe->demodulator_priv;
- u8 reg;
- u32 tuner_status = 0;
-
- *status = 0;
-
- if (state->current_modulation == VSB_8) {
- dprintk("%s() Checking VSB_8\n", __func__);
- reg = au8522_readreg(state, 0x4088);
- if ((reg & 0x03) == 0x03)
- *status |= FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI;
- } else {
- dprintk("%s() Checking QAM\n", __func__);
- reg = au8522_readreg(state, 0x4541);
- if (reg & 0x80)
- *status |= FE_HAS_VITERBI;
- if (reg & 0x20)
- *status |= FE_HAS_LOCK | FE_HAS_SYNC;
- }
-
- switch (state->config->status_mode) {
- case AU8522_DEMODLOCKING:
- dprintk("%s() DEMODLOCKING\n", __func__);
- if (*status & FE_HAS_VITERBI)
- *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
- break;
- case AU8522_TUNERLOCKING:
- /* Get the tuner status */
- dprintk("%s() TUNERLOCKING\n", __func__);
- if (fe->ops.tuner_ops.get_status) {
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
-
- fe->ops.tuner_ops.get_status(fe, &tuner_status);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- }
- if (tuner_status)
- *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
- break;
- }
- state->fe_status = *status;
-
- if (*status & FE_HAS_LOCK)
- /* turn on LED, if it isn't on already */
- au8522_led_ctrl(state, -1);
- else
- /* turn off LED */
- au8522_led_ctrl(state, 0);
-
- dprintk("%s() status 0x%08x\n", __func__, *status);
-
- return 0;
-}
-
-static int au8522_led_status(struct au8522_state *state, const u16 *snr)
-{
- struct au8522_led_config *led_config = state->config->led_cfg;
- int led;
- u16 strong;
-
- /* bail out if we cant control an LED */
- if (!led_config)
- return 0;
-
- if (0 == (state->fe_status & FE_HAS_LOCK))
- return au8522_led_ctrl(state, 0);
- else if (state->current_modulation == QAM_256)
- strong = led_config->qam256_strong;
- else if (state->current_modulation == QAM_64)
- strong = led_config->qam64_strong;
- else /* (state->current_modulation == VSB_8) */
- strong = led_config->vsb8_strong;
-
- if (*snr >= strong)
- led = 2;
- else
- led = 1;
-
- if ((state->led_state) &&
- (((strong < *snr) ? (*snr - strong) : (strong - *snr)) <= 10))
- /* snr didn't change enough to bother
- * changing the color of the led */
- return 0;
-
- return au8522_led_ctrl(state, led);
-}
-
-static int au8522_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct au8522_state *state = fe->demodulator_priv;
- int ret = -EINVAL;
-
- dprintk("%s()\n", __func__);
-
- if (state->current_modulation == QAM_256)
- ret = au8522_mse2snr_lookup(qam256_mse2snr_tab,
- ARRAY_SIZE(qam256_mse2snr_tab),
- au8522_readreg(state, 0x4522),
- snr);
- else if (state->current_modulation == QAM_64)
- ret = au8522_mse2snr_lookup(qam64_mse2snr_tab,
- ARRAY_SIZE(qam64_mse2snr_tab),
- au8522_readreg(state, 0x4522),
- snr);
- else /* VSB_8 */
- ret = au8522_mse2snr_lookup(vsb_mse2snr_tab,
- ARRAY_SIZE(vsb_mse2snr_tab),
- au8522_readreg(state, 0x4311),
- snr);
-
- if (state->config->led_cfg)
- au8522_led_status(state, snr);
-
- return ret;
-}
-
-static int au8522_read_signal_strength(struct dvb_frontend *fe,
- u16 *signal_strength)
-{
- return au8522_read_snr(fe, signal_strength);
-}
-
-static int au8522_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct au8522_state *state = fe->demodulator_priv;
-
- if (state->current_modulation == VSB_8)
- *ucblocks = au8522_readreg(state, 0x4087);
- else
- *ucblocks = au8522_readreg(state, 0x4543);
-
- return 0;
-}
-
-static int au8522_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- return au8522_read_ucblocks(fe, ber);
-}
-
-static int au8522_get_frontend(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *p)
-{
- struct au8522_state *state = fe->demodulator_priv;
-
- p->frequency = state->current_frequency;
- p->u.vsb.modulation = state->current_modulation;
-
- return 0;
-}
-
-static int au8522_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings *tune)
-{
- tune->min_delay_ms = 1000;
- return 0;
-}
-
-static void au8522_release(struct dvb_frontend *fe)
-{
- struct au8522_state *state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops au8522_ops;
-
-struct dvb_frontend *au8522_attach(const struct au8522_config *config,
- struct i2c_adapter *i2c)
-{
- struct au8522_state *state = NULL;
-
- /* allocate memory for the internal state */
- state = kmalloc(sizeof(struct au8522_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &au8522_ops,
- sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- if (au8522_init(&state->frontend) != 0) {
- printk(KERN_ERR "%s: Failed to initialize correctly\n",
- __func__);
- goto error;
- }
-
- /* Note: Leaving the I2C gate open here. */
- au8522_i2c_gate_ctrl(&state->frontend, 1);
-
- return &state->frontend;
-
-error:
- kfree(state);
- return NULL;
-}
-EXPORT_SYMBOL(au8522_attach);
-
-static struct dvb_frontend_ops au8522_ops = {
-
- .info = {
- .name = "Auvitek AU8522 QAM/8VSB Frontend",
- .type = FE_ATSC,
- .frequency_min = 54000000,
- .frequency_max = 858000000,
- .frequency_stepsize = 62500,
- .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
- },
-
- .init = au8522_init,
- .sleep = au8522_sleep,
- .i2c_gate_ctrl = au8522_i2c_gate_ctrl,
- .set_frontend = au8522_set_frontend,
- .get_frontend = au8522_get_frontend,
- .get_tune_settings = au8522_get_tune_settings,
- .read_status = au8522_read_status,
- .read_ber = au8522_read_ber,
- .read_signal_strength = au8522_read_signal_strength,
- .read_snr = au8522_read_snr,
- .read_ucblocks = au8522_read_ucblocks,
- .release = au8522_release,
-};
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Enable verbose debug messages");
-
-MODULE_DESCRIPTION("Auvitek AU8522 QAM-B/ATSC Demodulator driver");
-MODULE_AUTHOR("Steven Toth");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-27 06:16:26 +0000