+++ /dev/null
-/*
- * DVB USB Linux driver for the HDIC receiver
- *
- * Copyright (C) 2011 Metropolia University of Applied Sciences, Electria R&D
- *
- * Author: Antti Palosaari <crope@iki.fi>
- *
- * 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 "hdic.h"
-#include "hd29l2.h"
-#include "mxl5007t.h"
-
-/* debug */
-static int dvb_usb_hdic_debug;
-module_param_named(debug, dvb_usb_hdic_debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
-DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
-/*
- * I2C addresses (7bit) found by probing I2C bus:
- * 0x48 ??
- * 0x51 eeprom
- * 0x60 MaxLinear MXL5007T tuner
- * 0x73 HDIC HD29L2 demod
- *
- * Xtals:
- * 24.000 MHz Cypress CY7C68013A-56 (FX2)
- * 30.400 MHz HDIC HD29L2
- * 24.000 MHz MaxLinear MXL5007T
- *
- * I/Os:
- * RDY1 / SLWR == TS_CLK (USB_SLWR = !TS_CLK&TS_VALID)
- * PA1 / INT1 == 29L1_RESET RST_N
- */
-
-/*
- * See Qanu DVB-T USB2.0 communication protocol specification for more
- * information used USB API.
- */
-
-/* I2C */
-static int hdic_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
- int num)
-{
- int ret;
- struct dvb_usb_device *d = i2c_get_adapdata(adap);
- u8 buf[64];
-
- /*
- * increase sleep when there is a lot of errors:
- * dvb-usb: recv bulk message failed: -110
- */
-#define HDIC_I2C_SLEEP 1
-
- if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
- return -EAGAIN;
-
- if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
- (msg[1].flags & I2C_M_RD)) {
- /* I2C write + read combination (typical register read) */
- buf[0] = HDIC_CMD_I2C;
- buf[1] = (msg[0].addr << 1); /* I2C write */
- buf[2] = msg[0].len;
- buf[3] = 1; /* no I2C stop => repeated start */
- memcpy(&buf[4], msg[0].buf, msg[0].len);
- ret = dvb_usb_generic_rw(d, buf, 4+msg[0].len, buf, 1,
- HDIC_I2C_SLEEP);
- if (ret)
- goto err;
-
- buf[0] = HDIC_CMD_I2C;
- buf[1] = (msg[1].addr << 1) | 0x01; /* I2C read */
- buf[2] = msg[1].len;
- buf[3] = 0; /* I2C stop */
- ret = dvb_usb_generic_rw(d, buf, 4, buf, 1+msg[1].len,
- HDIC_I2C_SLEEP);
- if (ret)
- goto err;
-
- memcpy(msg[1].buf, &buf[1], msg[1].len);
-
- } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
- /* I2C write (typical register write) */
- buf[0] = HDIC_CMD_I2C;
- buf[1] = (msg[0].addr << 1); /* I2C write */
- buf[2] = msg[0].len;
- buf[3] = 0; /* I2C stop */
- memcpy(&buf[4], msg[0].buf, msg[0].len);
- ret = dvb_usb_generic_rw(d, buf, 4+msg[0].len, buf, 1,
- HDIC_I2C_SLEEP);
- if (ret)
- goto err;
- } else {
- ret = -EOPNOTSUPP;
- goto err;
- }
-
- usleep_range(100, 1000);
-
- mutex_unlock(&d->i2c_mutex);
-
- return num;
-
-err:
- deb_info("%s: failed=%d\n", __func__, ret);
- mutex_unlock(&d->i2c_mutex);
- return ret;
-}
-
-static u32 hdic_i2c_func(struct i2c_adapter *adapter)
-{
- return I2C_FUNC_I2C;
-}
-
-static struct i2c_algorithm hdic_i2c_algo = {
- .master_xfer = hdic_i2c_xfer,
- .functionality = hdic_i2c_func,
-};
-
-/* Callbacks for DVB USB */
-static int hdic_power_ctrl(struct dvb_usb_device *d, int enable)
-{
- u8 sbuf[] = { HDIC_CMD_SLEEP_MODE, enable ? 0 : 1 };
- u8 rbuf[1];
-
- deb_info("%s: enable=%d\n", __func__, enable);
-
- return dvb_usb_generic_rw(d, sbuf, sizeof(sbuf), rbuf, sizeof(rbuf), 0);
-}
-
-static int hdic_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
-{
- u8 sbuf[] = { HDIC_CMD_CONTROL_STREAM_TRANSFER, enable };
- u8 rbuf[1];
-
- deb_info("%s: enable=%d\n", __func__, enable);
-
- return dvb_usb_generic_rw(adap->dev, sbuf, sizeof(sbuf), rbuf,
- sizeof(rbuf), 0);
-}
-
-/* general callback */
-static int hdic_frontend_callback(void *priv, int component, int cmd, int arg)
-{
- int ret;
- struct dvb_frontend *fe = priv;
- struct dvb_usb_adapter *adap = fe->dvb->priv;
- u8 sbuf[2] = { HDIC_CMD_DEMOD_RESET };
- u8 rbuf[1];
-
- deb_info("%s:\n", __func__);
-
- /* enable demod reset */
- sbuf[1] = 1;
- ret = dvb_usb_generic_rw(adap->dev, sbuf, sizeof(sbuf),
- rbuf, sizeof(rbuf), 0);
- if (ret)
- deb_info("%s: failed enable demod reset\n", __func__);
-
- usleep_range(100, 10000);
-
- /* disable demod reset */
- sbuf[1] = 0;
- ret = dvb_usb_generic_rw(adap->dev, sbuf, sizeof(sbuf), rbuf,
- sizeof(rbuf), 0);
- if (ret)
- deb_info("%s: failed disable demod reset\n", __func__);
-
- return 0;
-}
-
-static struct hd29l2_config hdic_hd29l2_config = {
- .i2c_addr = 0x73,
- .tuner_i2c_addr = 0x60,
- .ts_mode = HD29L2_TS_PARALLEL,
-};
-
-static int hdic_frontend_attach(struct dvb_usb_adapter *adap)
-{
- int ret;
- u8 sbuf[2];
- u8 rbuf[3];
-
- deb_info("%s:\n", __func__);
-
- /* wake-up device */
- sbuf[0] = HDIC_CMD_GET_FIRMWARE_VERSION;
- ret = dvb_usb_generic_rw(adap->dev, sbuf, sizeof(sbuf), rbuf,
- sizeof(rbuf), 0);
- if (ret)
- deb_info("%s: failed wake-up\n", __func__);
-
- /* disable demod reset */
- sbuf[0] = HDIC_CMD_DEMOD_RESET;
- sbuf[1] = 0;
- ret = dvb_usb_generic_rw(adap->dev, sbuf, sizeof(sbuf), rbuf,
- sizeof(rbuf), 0);
- if (ret)
- deb_info("%s: failed disable demod reset\n", __func__);
-
- /* attach demod */
- adap->fe_adap[0].fe = dvb_attach(hd29l2_attach, &hdic_hd29l2_config,
- &adap->dev->i2c_adap);
- if (adap->fe_adap[0].fe == NULL) {
- ret = -ENODEV;
- goto err;
- }
-
- /* setup the reset callback */
- adap->fe_adap[0].fe->callback = hdic_frontend_callback;
-
- return 0;
-err:
- deb_info("%s: failed=%d\n", __func__, ret);
- return ret;
-}
-
-static struct mxl5007t_config hdic_mxl5007t_config = {
- .xtal_freq_hz = MxL_XTAL_24_MHZ,
- .if_freq_hz = MxL_IF_36_15_MHZ,
- .invert_if = 1,
-};
-
-static int hdic_tuner_attach(struct dvb_usb_adapter *adap)
-{
- int ret;
-
- deb_info("%s:\n", __func__);
-
- if (dvb_attach(mxl5007t_attach, adap->fe_adap[0].fe,
- &adap->dev->i2c_adap, 0x60, &hdic_mxl5007t_config) == NULL) {
- ret = -ENODEV;
- goto err;
- }
-
- return 0;
-err:
- deb_info("%s: failed=%d\n", __func__, ret);
- return ret;
-}
-
-/* DVB USB Driver stuff */
-static struct dvb_usb_device_properties hdic_properties;
-
-static int hdic_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- return dvb_usb_device_init(intf, &hdic_properties, THIS_MODULE, NULL,
- adapter_nr);
-}
-
-/*
- * 04b4:1004 HDIC development board firmware
- * 04b4:8613 CY7C68013 EZ-USB FX2 USB 2.0 Development Kit
- */
-static struct usb_device_id hdic_id[] = {
-#define HDIC_8613 0 /* CY7C68013 EZ-USB FX2 USB 2.0 Development Kit */
-#define HDIC_1004 1 /* HDIC 04b4:1004 */
-#define HDIC_LINUX 2 /* HDIC Linux custom firmware */
-
- [HDIC_8613] = {USB_DEVICE(USB_VID_CYPRESS, 0x8613)},
- [HDIC_1004] = {USB_DEVICE(USB_VID_CYPRESS, 0x1004)},
- [HDIC_LINUX] = {USB_DEVICE(USB_VID_CYPRESS, 0x1e04)},
- {} /* terminating entry */
-};
-
-MODULE_DEVICE_TABLE(usb, hdic_id);
-
-static struct dvb_usb_device_properties hdic_properties = {
- .caps = DVB_USB_IS_AN_I2C_ADAPTER,
-
- .usb_ctrl = CYPRESS_FX2,
- .firmware = "dvb-usb-hdic.fw",
-
- .num_adapters = 1,
- .adapter = {
- {
- .num_frontends = 1,
- .fe = {
- {
- .streaming_ctrl = hdic_streaming_ctrl,
- .frontend_attach = hdic_frontend_attach,
- .tuner_attach = hdic_tuner_attach,
-
- .stream = {
- .type = USB_BULK,
- .count = 5,
- .endpoint = 0x02,
- .u = {
- .bulk = {
- .buffersize =
- (4*512),
- }
- }
- },
- }
- },
- }
- },
-
- .power_ctrl = hdic_power_ctrl,
-
- .i2c_algo = &hdic_i2c_algo,
-
- .generic_bulk_ctrl_endpoint = 1,
-
- .num_device_descs = 1,
- .devices = {
- {
- .name = "HDIC reference design",
- .cold_ids = {&hdic_id[HDIC_8613],
- &hdic_id[HDIC_1004], NULL},
- .warm_ids = {&hdic_id[HDIC_LINUX], NULL},
- },
- }
-};
-
-static struct usb_driver hdic_driver = {
- .name = "dvb_usb_hdic",
- .probe = hdic_probe,
- .disconnect = dvb_usb_device_exit,
- .id_table = hdic_id,
-};
-
-/* module stuff */
-static int __init hdic_module_init(void)
-{
- int ret;
-
- deb_info("%s:\n", __func__);
-
- ret = usb_register(&hdic_driver);
- if (ret)
- err("module init failed=%d", ret);
-
- return ret;
-}
-
-static void __exit hdic_module_exit(void)
-{
- deb_info("%s:\n", __func__);
-
- /* deregister this driver from the USB subsystem */
- usb_deregister(&hdic_driver);
-}
-
-module_init(hdic_module_init);
-module_exit(hdic_module_exit);
-
-MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
-MODULE_DESCRIPTION("HDIC DMB-TH reference design USB2.0 driver (custom firmware)");
-MODULE_LICENSE("GPL");
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff