+++ /dev/null
-/*
- * Driver for Micronas DRX39xx family (drx3933j)
- *
- * Written by Devin Heitmueller <devin.heitmueller@kernellabs.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.=
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-
-#include "dvb_frontend.h"
-#include "drx39xxj.h"
-#include "drx_driver.h"
-#include "drxj.h"
-
-#define DRX39XX_MAIN_FIRMWARE "dvb-fe-drxj-mc-1.0.8.fw"
-
-static int drx39xxj_set_powerstate(struct dvb_frontend *fe, int enable)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- int result;
- enum drx_power_mode power_mode;
-
- if (enable)
- power_mode = DRX_POWER_UP;
- else
- power_mode = DRX_POWER_DOWN;
-
- result = drxj_ctrl(demod, DRX_CTRL_POWER_MODE, &power_mode);
- if (result != 0) {
- pr_err("Power state change failed\n");
- return 0;
- }
-
- state->powered_up = enable;
- return 0;
-}
-
-static int drx39xxj_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- int result;
- enum drx_lock_status lock_status;
-
- *status = 0;
-
- result = drxj_ctrl(demod, DRX_CTRL_LOCK_STATUS, &lock_status);
- if (result != 0) {
- pr_err("drx39xxj: could not get lock status!\n");
- *status = 0;
- }
-
- switch (lock_status) {
- case DRX_NEVER_LOCK:
- *status = 0;
- pr_err("drx says NEVER_LOCK\n");
- break;
- case DRX_NOT_LOCKED:
- *status = 0;
- break;
- case DRX_LOCK_STATE_1:
- case DRX_LOCK_STATE_2:
- case DRX_LOCK_STATE_3:
- case DRX_LOCK_STATE_4:
- case DRX_LOCK_STATE_5:
- case DRX_LOCK_STATE_6:
- case DRX_LOCK_STATE_7:
- case DRX_LOCK_STATE_8:
- case DRX_LOCK_STATE_9:
- *status = FE_HAS_SIGNAL
- | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC;
- break;
- case DRX_LOCKED:
- *status = FE_HAS_SIGNAL
- | FE_HAS_CARRIER
- | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
- break;
- default:
- pr_err("Lock state unknown %d\n", lock_status);
- }
-
- return 0;
-}
-
-static int drx39xxj_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- int result;
- struct drx_sig_quality sig_quality;
-
- result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
- if (result != 0) {
- pr_err("drx39xxj: could not get ber!\n");
- *ber = 0;
- return 0;
- }
-
- *ber = sig_quality.post_reed_solomon_ber;
- return 0;
-}
-
-static int drx39xxj_read_signal_strength(struct dvb_frontend *fe,
- u16 *strength)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- int result;
- struct drx_sig_quality sig_quality;
-
- result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
- if (result != 0) {
- pr_err("drx39xxj: could not get signal strength!\n");
- *strength = 0;
- return 0;
- }
-
- /* 1-100% scaled to 0-65535 */
- *strength = (sig_quality.indicator * 65535 / 100);
- return 0;
-}
-
-static int drx39xxj_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- int result;
- struct drx_sig_quality sig_quality;
-
- result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
- if (result != 0) {
- pr_err("drx39xxj: could not read snr!\n");
- *snr = 0;
- return 0;
- }
-
- *snr = sig_quality.MER;
- return 0;
-}
-
-static int drx39xxj_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- int result;
- struct drx_sig_quality sig_quality;
-
- result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
- if (result != 0) {
- pr_err("drx39xxj: could not get uc blocks!\n");
- *ucblocks = 0;
- return 0;
- }
-
- *ucblocks = sig_quality.packet_error;
- return 0;
-}
-
-static int drx39xxj_set_frontend(struct dvb_frontend *fe)
-{
-#ifdef DJH_DEBUG
- int i;
-#endif
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- enum drx_standard standard = DRX_STANDARD_8VSB;
- struct drx_channel channel;
- int result;
- struct drxuio_data uio_data;
- static const struct drx_channel def_channel = {
- /* frequency */ 0,
- /* bandwidth */ DRX_BANDWIDTH_6MHZ,
- /* mirror */ DRX_MIRROR_NO,
- /* constellation */ DRX_CONSTELLATION_AUTO,
- /* hierarchy */ DRX_HIERARCHY_UNKNOWN,
- /* priority */ DRX_PRIORITY_UNKNOWN,
- /* coderate */ DRX_CODERATE_UNKNOWN,
- /* guard */ DRX_GUARD_UNKNOWN,
- /* fftmode */ DRX_FFTMODE_UNKNOWN,
- /* classification */ DRX_CLASSIFICATION_AUTO,
- /* symbolrate */ 5057000,
- /* interleavemode */ DRX_INTERLEAVEMODE_UNKNOWN,
- /* ldpc */ DRX_LDPC_UNKNOWN,
- /* carrier */ DRX_CARRIER_UNKNOWN,
- /* frame mode */ DRX_FRAMEMODE_UNKNOWN
- };
- u32 constellation = DRX_CONSTELLATION_AUTO;
-
- /* Bring the demod out of sleep */
- drx39xxj_set_powerstate(fe, 1);
-
- /* Now make the tuner do it's thing... */
- if (fe->ops.tuner_ops.set_params) {
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
- fe->ops.tuner_ops.set_params(fe);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- }
-
- switch (p->delivery_system) {
- case SYS_ATSC:
- standard = DRX_STANDARD_8VSB;
- break;
- case SYS_DVBC_ANNEX_B:
- standard = DRX_STANDARD_ITU_B;
-
- switch (p->modulation) {
- case QAM_64:
- constellation = DRX_CONSTELLATION_QAM64;
- break;
- case QAM_256:
- constellation = DRX_CONSTELLATION_QAM256;
- break;
- default:
- constellation = DRX_CONSTELLATION_AUTO;
- break;
- }
- break;
- default:
- return -EINVAL;
- }
-
- if (standard != state->current_standard || state->powered_up == 0) {
- /* Set the standard (will be powered up if necessary */
- result = drxj_ctrl(demod, DRX_CTRL_SET_STANDARD, &standard);
- if (result != 0) {
- pr_err("Failed to set standard! result=%02x\n",
- result);
- return -EINVAL;
- }
- state->powered_up = 1;
- state->current_standard = standard;
- }
-
- /* set channel parameters */
- channel = def_channel;
- channel.frequency = p->frequency / 1000;
- channel.bandwidth = DRX_BANDWIDTH_6MHZ;
- channel.constellation = constellation;
-
- /* program channel */
- result = drxj_ctrl(demod, DRX_CTRL_SET_CHANNEL, &channel);
- if (result != 0) {
- pr_err("Failed to set channel!\n");
- return -EINVAL;
- }
- /* Just for giggles, let's shut off the LNA again.... */
- uio_data.uio = DRX_UIO1;
- uio_data.value = false;
- result = drxj_ctrl(demod, DRX_CTRL_UIO_WRITE, &uio_data);
- if (result != 0) {
- pr_err("Failed to disable LNA!\n");
- return 0;
- }
-#ifdef DJH_DEBUG
- for (i = 0; i < 2000; i++) {
- fe_status_t status;
- drx39xxj_read_status(fe, &status);
- pr_dbg("i=%d status=%d\n", i, status);
- msleep(100);
- i += 100;
- }
-#endif
-
- return 0;
-}
-
-static int drx39xxj_sleep(struct dvb_frontend *fe)
-{
- /* power-down the demodulator */
- return drx39xxj_set_powerstate(fe, 0);
-}
-
-static int drx39xxj_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
- bool i2c_gate_state;
- int result;
-
-#ifdef DJH_DEBUG
- pr_dbg("i2c gate call: enable=%d state=%d\n", enable,
- state->i2c_gate_open);
-#endif
-
- if (enable)
- i2c_gate_state = true;
- else
- i2c_gate_state = false;
-
- if (state->i2c_gate_open == enable) {
- /* We're already in the desired state */
- return 0;
- }
-
- result = drxj_ctrl(demod, DRX_CTRL_I2C_BRIDGE, &i2c_gate_state);
- if (result != 0) {
- pr_err("drx39xxj: could not open i2c gate [%d]\n",
- result);
- dump_stack();
- } else {
- state->i2c_gate_open = enable;
- }
- return 0;
-}
-
-static int drx39xxj_init(struct dvb_frontend *fe)
-{
- /* Bring the demod out of sleep */
- drx39xxj_set_powerstate(fe, 1);
-
- return 0;
-}
-
-static int drx39xxj_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings *tune)
-{
- tune->min_delay_ms = 1000;
- return 0;
-}
-
-static void drx39xxj_release(struct dvb_frontend *fe)
-{
- struct drx39xxj_state *state = fe->demodulator_priv;
- struct drx_demod_instance *demod = state->demod;
-
- kfree(demod->my_ext_attr);
- kfree(demod->my_common_attr);
- kfree(demod->my_i2c_dev_addr);
- if (demod->firmware)
- release_firmware(demod->firmware);
- kfree(demod);
- kfree(state);
-}
-
-static struct dvb_frontend_ops drx39xxj_ops;
-
-struct dvb_frontend *drx39xxj_attach(struct i2c_adapter *i2c)
-{
- struct drx39xxj_state *state = NULL;
-
- struct i2c_device_addr *demod_addr = NULL;
- struct drx_common_attr *demod_comm_attr = NULL;
- struct drxj_data *demod_ext_attr = NULL;
- struct drx_demod_instance *demod = NULL;
- struct drxuio_cfg uio_cfg;
- struct drxuio_data uio_data;
- int result;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct drx39xxj_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
-
- demod = kmalloc(sizeof(struct drx_demod_instance), GFP_KERNEL);
- if (demod == NULL)
- goto error;
-
- demod_addr = kmalloc(sizeof(struct i2c_device_addr), GFP_KERNEL);
- if (demod_addr == NULL)
- goto error;
- memcpy(demod_addr, &drxj_default_addr_g,
- sizeof(struct i2c_device_addr));
-
- demod_comm_attr = kmalloc(sizeof(struct drx_common_attr), GFP_KERNEL);
- if (demod_comm_attr == NULL)
- goto error;
- memcpy(demod_comm_attr, &drxj_default_comm_attr_g,
- sizeof(struct drx_common_attr));
-
- demod_ext_attr = kmalloc(sizeof(struct drxj_data), GFP_KERNEL);
- if (demod_ext_attr == NULL)
- goto error;
- memcpy(demod_ext_attr, &drxj_data_g, sizeof(struct drxj_data));
-
- /* setup the state */
- state->i2c = i2c;
- state->demod = demod;
-
- /* setup the demod data */
- memcpy(demod, &drxj_default_demod_g, sizeof(struct drx_demod_instance));
-
- demod->my_i2c_dev_addr = demod_addr;
- demod->my_common_attr = demod_comm_attr;
- demod->my_i2c_dev_addr->user_data = state;
- demod->my_common_attr->microcode_file = DRX39XX_MAIN_FIRMWARE;
- demod->my_common_attr->verify_microcode = true;
- demod->my_common_attr->intermediate_freq = 5000;
- demod->my_ext_attr = demod_ext_attr;
- ((struct drxj_data *)demod_ext_attr)->uio_sma_tx_mode = DRX_UIO_MODE_READWRITE;
- demod->my_tuner = NULL;
- demod->i2c = i2c;
-
- result = drxj_open(demod);
- if (result != 0) {
- pr_err("DRX open failed! Aborting\n");
- goto error;
- }
-
- /* Turn off the LNA */
- uio_cfg.uio = DRX_UIO1;
- uio_cfg.mode = DRX_UIO_MODE_READWRITE;
- /* Configure user-I/O #3: enable read/write */
- result = drxj_ctrl(demod, DRX_CTRL_UIO_CFG, &uio_cfg);
- if (result) {
- pr_err("Failed to setup LNA GPIO!\n");
- goto error;
- }
-
- uio_data.uio = DRX_UIO1;
- uio_data.value = false;
- result = drxj_ctrl(demod, DRX_CTRL_UIO_WRITE, &uio_data);
- if (result != 0) {
- pr_err("Failed to disable LNA!\n");
- goto error;
- }
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &drx39xxj_ops,
- sizeof(struct dvb_frontend_ops));
-
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
- kfree(demod_ext_attr);
- kfree(demod_comm_attr);
- kfree(demod_addr);
- kfree(demod);
- kfree(state);
-
- return NULL;
-}
-EXPORT_SYMBOL(drx39xxj_attach);
-
-static struct dvb_frontend_ops drx39xxj_ops = {
- .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
- .info = {
- .name = "Micronas DRX39xxj family Frontend",
- .frequency_stepsize = 62500,
- .frequency_min = 51000000,
- .frequency_max = 858000000,
- .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
- },
-
- .init = drx39xxj_init,
- .i2c_gate_ctrl = drx39xxj_i2c_gate_ctrl,
- .sleep = drx39xxj_sleep,
- .set_frontend = drx39xxj_set_frontend,
- .get_tune_settings = drx39xxj_get_tune_settings,
- .read_status = drx39xxj_read_status,
- .read_ber = drx39xxj_read_ber,
- .read_signal_strength = drx39xxj_read_signal_strength,
- .read_snr = drx39xxj_read_snr,
- .read_ucblocks = drx39xxj_read_ucblocks,
- .release = drx39xxj_release,
-};
-
-MODULE_DESCRIPTION("Micronas DRX39xxj Frontend");
-MODULE_AUTHOR("Devin Heitmueller");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(DRX39XX_MAIN_FIRMWARE);
DRXJ specific implementation of DRX driver
authors: Dragan Savic, Milos Nikolic, Mihajlo Katona, Tao Ding, Paul Janssen
+
+ The Linux DVB Driver for Micronas DRX39xx family (drx3933j) was
+ written by Devin Heitmueller <devin.heitmueller@kernellabs.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.
*/
/*-----------------------------------------------------------------------------
#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include "dvb_frontend.h"
+#include "drx39xxj.h"
+
#include "drxj.h"
#include "drxj_map.h"
/*=== DEFINES ================================================================*/
/*============================================================================*/
+#define DRX39XX_MAIN_FIRMWARE "dvb-fe-drxj-mc-1.0.8.fw"
+
/**
* \brief Maximum u32 value.
*/
return rc;
}
+
+/*
+ * The Linux DVB Driver for Micronas DRX39xx family (drx3933j)
+ *
+ * Written by Devin Heitmueller <devin.heitmueller@kernellabs.com>
+ */
+
+static int drx39xxj_set_powerstate(struct dvb_frontend *fe, int enable)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ int result;
+ enum drx_power_mode power_mode;
+
+ if (enable)
+ power_mode = DRX_POWER_UP;
+ else
+ power_mode = DRX_POWER_DOWN;
+
+ result = drxj_ctrl(demod, DRX_CTRL_POWER_MODE, &power_mode);
+ if (result != 0) {
+ pr_err("Power state change failed\n");
+ return 0;
+ }
+
+ state->powered_up = enable;
+ return 0;
+}
+
+static int drx39xxj_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ int result;
+ enum drx_lock_status lock_status;
+
+ *status = 0;
+
+ result = drxj_ctrl(demod, DRX_CTRL_LOCK_STATUS, &lock_status);
+ if (result != 0) {
+ pr_err("drx39xxj: could not get lock status!\n");
+ *status = 0;
+ }
+
+ switch (lock_status) {
+ case DRX_NEVER_LOCK:
+ *status = 0;
+ pr_err("drx says NEVER_LOCK\n");
+ break;
+ case DRX_NOT_LOCKED:
+ *status = 0;
+ break;
+ case DRX_LOCK_STATE_1:
+ case DRX_LOCK_STATE_2:
+ case DRX_LOCK_STATE_3:
+ case DRX_LOCK_STATE_4:
+ case DRX_LOCK_STATE_5:
+ case DRX_LOCK_STATE_6:
+ case DRX_LOCK_STATE_7:
+ case DRX_LOCK_STATE_8:
+ case DRX_LOCK_STATE_9:
+ *status = FE_HAS_SIGNAL
+ | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC;
+ break;
+ case DRX_LOCKED:
+ *status = FE_HAS_SIGNAL
+ | FE_HAS_CARRIER
+ | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+ break;
+ default:
+ pr_err("Lock state unknown %d\n", lock_status);
+ }
+
+ return 0;
+}
+
+static int drx39xxj_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ int result;
+ struct drx_sig_quality sig_quality;
+
+ result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
+ if (result != 0) {
+ pr_err("drx39xxj: could not get ber!\n");
+ *ber = 0;
+ return 0;
+ }
+
+ *ber = sig_quality.post_reed_solomon_ber;
+ return 0;
+}
+
+static int drx39xxj_read_signal_strength(struct dvb_frontend *fe,
+ u16 *strength)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ int result;
+ struct drx_sig_quality sig_quality;
+
+ result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
+ if (result != 0) {
+ pr_err("drx39xxj: could not get signal strength!\n");
+ *strength = 0;
+ return 0;
+ }
+
+ /* 1-100% scaled to 0-65535 */
+ *strength = (sig_quality.indicator * 65535 / 100);
+ return 0;
+}
+
+static int drx39xxj_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ int result;
+ struct drx_sig_quality sig_quality;
+
+ result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
+ if (result != 0) {
+ pr_err("drx39xxj: could not read snr!\n");
+ *snr = 0;
+ return 0;
+ }
+
+ *snr = sig_quality.MER;
+ return 0;
+}
+
+static int drx39xxj_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ int result;
+ struct drx_sig_quality sig_quality;
+
+ result = drxj_ctrl(demod, DRX_CTRL_SIG_QUALITY, &sig_quality);
+ if (result != 0) {
+ pr_err("drx39xxj: could not get uc blocks!\n");
+ *ucblocks = 0;
+ return 0;
+ }
+
+ *ucblocks = sig_quality.packet_error;
+ return 0;
+}
+
+static int drx39xxj_set_frontend(struct dvb_frontend *fe)
+{
+#ifdef DJH_DEBUG
+ int i;
+#endif
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ enum drx_standard standard = DRX_STANDARD_8VSB;
+ struct drx_channel channel;
+ int result;
+ struct drxuio_data uio_data;
+ static const struct drx_channel def_channel = {
+ /* frequency */ 0,
+ /* bandwidth */ DRX_BANDWIDTH_6MHZ,
+ /* mirror */ DRX_MIRROR_NO,
+ /* constellation */ DRX_CONSTELLATION_AUTO,
+ /* hierarchy */ DRX_HIERARCHY_UNKNOWN,
+ /* priority */ DRX_PRIORITY_UNKNOWN,
+ /* coderate */ DRX_CODERATE_UNKNOWN,
+ /* guard */ DRX_GUARD_UNKNOWN,
+ /* fftmode */ DRX_FFTMODE_UNKNOWN,
+ /* classification */ DRX_CLASSIFICATION_AUTO,
+ /* symbolrate */ 5057000,
+ /* interleavemode */ DRX_INTERLEAVEMODE_UNKNOWN,
+ /* ldpc */ DRX_LDPC_UNKNOWN,
+ /* carrier */ DRX_CARRIER_UNKNOWN,
+ /* frame mode */ DRX_FRAMEMODE_UNKNOWN
+ };
+ u32 constellation = DRX_CONSTELLATION_AUTO;
+
+ /* Bring the demod out of sleep */
+ drx39xxj_set_powerstate(fe, 1);
+
+ /* Now make the tuner do it's thing... */
+ if (fe->ops.tuner_ops.set_params) {
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+ fe->ops.tuner_ops.set_params(fe);
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+ }
+
+ switch (p->delivery_system) {
+ case SYS_ATSC:
+ standard = DRX_STANDARD_8VSB;
+ break;
+ case SYS_DVBC_ANNEX_B:
+ standard = DRX_STANDARD_ITU_B;
+
+ switch (p->modulation) {
+ case QAM_64:
+ constellation = DRX_CONSTELLATION_QAM64;
+ break;
+ case QAM_256:
+ constellation = DRX_CONSTELLATION_QAM256;
+ break;
+ default:
+ constellation = DRX_CONSTELLATION_AUTO;
+ break;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (standard != state->current_standard || state->powered_up == 0) {
+ /* Set the standard (will be powered up if necessary */
+ result = drxj_ctrl(demod, DRX_CTRL_SET_STANDARD, &standard);
+ if (result != 0) {
+ pr_err("Failed to set standard! result=%02x\n",
+ result);
+ return -EINVAL;
+ }
+ state->powered_up = 1;
+ state->current_standard = standard;
+ }
+
+ /* set channel parameters */
+ channel = def_channel;
+ channel.frequency = p->frequency / 1000;
+ channel.bandwidth = DRX_BANDWIDTH_6MHZ;
+ channel.constellation = constellation;
+
+ /* program channel */
+ result = drxj_ctrl(demod, DRX_CTRL_SET_CHANNEL, &channel);
+ if (result != 0) {
+ pr_err("Failed to set channel!\n");
+ return -EINVAL;
+ }
+ /* Just for giggles, let's shut off the LNA again.... */
+ uio_data.uio = DRX_UIO1;
+ uio_data.value = false;
+ result = drxj_ctrl(demod, DRX_CTRL_UIO_WRITE, &uio_data);
+ if (result != 0) {
+ pr_err("Failed to disable LNA!\n");
+ return 0;
+ }
+#ifdef DJH_DEBUG
+ for (i = 0; i < 2000; i++) {
+ fe_status_t status;
+ drx39xxj_read_status(fe, &status);
+ pr_dbg("i=%d status=%d\n", i, status);
+ msleep(100);
+ i += 100;
+ }
+#endif
+
+ return 0;
+}
+
+static int drx39xxj_sleep(struct dvb_frontend *fe)
+{
+ /* power-down the demodulator */
+ return drx39xxj_set_powerstate(fe, 0);
+}
+
+static int drx39xxj_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+ bool i2c_gate_state;
+ int result;
+
+#ifdef DJH_DEBUG
+ pr_dbg("i2c gate call: enable=%d state=%d\n", enable,
+ state->i2c_gate_open);
+#endif
+
+ if (enable)
+ i2c_gate_state = true;
+ else
+ i2c_gate_state = false;
+
+ if (state->i2c_gate_open == enable) {
+ /* We're already in the desired state */
+ return 0;
+ }
+
+ result = drxj_ctrl(demod, DRX_CTRL_I2C_BRIDGE, &i2c_gate_state);
+ if (result != 0) {
+ pr_err("drx39xxj: could not open i2c gate [%d]\n",
+ result);
+ dump_stack();
+ } else {
+ state->i2c_gate_open = enable;
+ }
+ return 0;
+}
+
+static int drx39xxj_init(struct dvb_frontend *fe)
+{
+ /* Bring the demod out of sleep */
+ drx39xxj_set_powerstate(fe, 1);
+
+ return 0;
+}
+
+static int drx39xxj_get_tune_settings(struct dvb_frontend *fe,
+ struct dvb_frontend_tune_settings *tune)
+{
+ tune->min_delay_ms = 1000;
+ return 0;
+}
+
+static void drx39xxj_release(struct dvb_frontend *fe)
+{
+ struct drx39xxj_state *state = fe->demodulator_priv;
+ struct drx_demod_instance *demod = state->demod;
+
+ kfree(demod->my_ext_attr);
+ kfree(demod->my_common_attr);
+ kfree(demod->my_i2c_dev_addr);
+ if (demod->firmware)
+ release_firmware(demod->firmware);
+ kfree(demod);
+ kfree(state);
+}
+
+static struct dvb_frontend_ops drx39xxj_ops;
+
+struct dvb_frontend *drx39xxj_attach(struct i2c_adapter *i2c)
+{
+ struct drx39xxj_state *state = NULL;
+
+ struct i2c_device_addr *demod_addr = NULL;
+ struct drx_common_attr *demod_comm_attr = NULL;
+ struct drxj_data *demod_ext_attr = NULL;
+ struct drx_demod_instance *demod = NULL;
+ struct drxuio_cfg uio_cfg;
+ struct drxuio_data uio_data;
+ int result;
+
+ /* allocate memory for the internal state */
+ state = kzalloc(sizeof(struct drx39xxj_state), GFP_KERNEL);
+ if (state == NULL)
+ goto error;
+
+ demod = kmalloc(sizeof(struct drx_demod_instance), GFP_KERNEL);
+ if (demod == NULL)
+ goto error;
+
+ demod_addr = kmalloc(sizeof(struct i2c_device_addr), GFP_KERNEL);
+ if (demod_addr == NULL)
+ goto error;
+ memcpy(demod_addr, &drxj_default_addr_g,
+ sizeof(struct i2c_device_addr));
+
+ demod_comm_attr = kmalloc(sizeof(struct drx_common_attr), GFP_KERNEL);
+ if (demod_comm_attr == NULL)
+ goto error;
+ memcpy(demod_comm_attr, &drxj_default_comm_attr_g,
+ sizeof(struct drx_common_attr));
+
+ demod_ext_attr = kmalloc(sizeof(struct drxj_data), GFP_KERNEL);
+ if (demod_ext_attr == NULL)
+ goto error;
+ memcpy(demod_ext_attr, &drxj_data_g, sizeof(struct drxj_data));
+
+ /* setup the state */
+ state->i2c = i2c;
+ state->demod = demod;
+
+ /* setup the demod data */
+ memcpy(demod, &drxj_default_demod_g, sizeof(struct drx_demod_instance));
+
+ demod->my_i2c_dev_addr = demod_addr;
+ demod->my_common_attr = demod_comm_attr;
+ demod->my_i2c_dev_addr->user_data = state;
+ demod->my_common_attr->microcode_file = DRX39XX_MAIN_FIRMWARE;
+ demod->my_common_attr->verify_microcode = true;
+ demod->my_common_attr->intermediate_freq = 5000;
+ demod->my_ext_attr = demod_ext_attr;
+ ((struct drxj_data *)demod_ext_attr)->uio_sma_tx_mode = DRX_UIO_MODE_READWRITE;
+ demod->my_tuner = NULL;
+ demod->i2c = i2c;
+
+ result = drxj_open(demod);
+ if (result != 0) {
+ pr_err("DRX open failed! Aborting\n");
+ goto error;
+ }
+
+ /* Turn off the LNA */
+ uio_cfg.uio = DRX_UIO1;
+ uio_cfg.mode = DRX_UIO_MODE_READWRITE;
+ /* Configure user-I/O #3: enable read/write */
+ result = drxj_ctrl(demod, DRX_CTRL_UIO_CFG, &uio_cfg);
+ if (result) {
+ pr_err("Failed to setup LNA GPIO!\n");
+ goto error;
+ }
+
+ uio_data.uio = DRX_UIO1;
+ uio_data.value = false;
+ result = drxj_ctrl(demod, DRX_CTRL_UIO_WRITE, &uio_data);
+ if (result != 0) {
+ pr_err("Failed to disable LNA!\n");
+ goto error;
+ }
+
+ /* create dvb_frontend */
+ memcpy(&state->frontend.ops, &drx39xxj_ops,
+ sizeof(struct dvb_frontend_ops));
+
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+
+error:
+ kfree(demod_ext_attr);
+ kfree(demod_comm_attr);
+ kfree(demod_addr);
+ kfree(demod);
+ kfree(state);
+
+ return NULL;
+}
+EXPORT_SYMBOL(drx39xxj_attach);
+
+static struct dvb_frontend_ops drx39xxj_ops = {
+ .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
+ .info = {
+ .name = "Micronas DRX39xxj family Frontend",
+ .frequency_stepsize = 62500,
+ .frequency_min = 51000000,
+ .frequency_max = 858000000,
+ .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
+ },
+
+ .init = drx39xxj_init,
+ .i2c_gate_ctrl = drx39xxj_i2c_gate_ctrl,
+ .sleep = drx39xxj_sleep,
+ .set_frontend = drx39xxj_set_frontend,
+ .get_tune_settings = drx39xxj_get_tune_settings,
+ .read_status = drx39xxj_read_status,
+ .read_ber = drx39xxj_read_ber,
+ .read_signal_strength = drx39xxj_read_signal_strength,
+ .read_snr = drx39xxj_read_snr,
+ .read_ucblocks = drx39xxj_read_ucblocks,
+ .release = drx39xxj_release,
+};
+
+MODULE_DESCRIPTION("Micronas DRX39xxj Frontend");
+MODULE_AUTHOR("Devin Heitmueller");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(DRX39XX_MAIN_FIRMWARE);
OSDN Git Service
