--- /dev/null
+/* Linux driver for devices based on the DiBcom DiB0700 USB bridge
+ *
+ * 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, version 2.
+ *
+ * Copyright (C) 2005-6 DiBcom, SA
+ */
+#include "dib0700.h"
+
+/* debug */
+int dvb_usb_dib0700_debug;
+module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);
+
+static int nb_packet_buffer_size = 21;
+module_param(nb_packet_buffer_size, int, 0644);
+MODULE_PARM_DESC(nb_packet_buffer_size,
+ "Set the dib0700 driver data buffer size. This parameter "
+ "corresponds to the number of TS packets. The actual size of "
+ "the data buffer corresponds to this parameter "
+ "multiplied by 188 (default: 21)");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+
+int dib0700_get_version(struct dvb_usb_device *d, u32 *hwversion,
+ u32 *romversion, u32 *ramversion, u32 *fwtype)
+{
+ struct dib0700_state *st = d->priv;
+ int ret;
+
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ return -EINTR;
+ }
+
+ ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
+ REQUEST_GET_VERSION,
+ USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
+ st->buf, 16, USB_CTRL_GET_TIMEOUT);
+ if (hwversion != NULL)
+ *hwversion = (st->buf[0] << 24) | (st->buf[1] << 16) |
+ (st->buf[2] << 8) | st->buf[3];
+ if (romversion != NULL)
+ *romversion = (st->buf[4] << 24) | (st->buf[5] << 16) |
+ (st->buf[6] << 8) | st->buf[7];
+ if (ramversion != NULL)
+ *ramversion = (st->buf[8] << 24) | (st->buf[9] << 16) |
+ (st->buf[10] << 8) | st->buf[11];
+ if (fwtype != NULL)
+ *fwtype = (st->buf[12] << 24) | (st->buf[13] << 16) |
+ (st->buf[14] << 8) | st->buf[15];
+ mutex_unlock(&d->usb_mutex);
+ return ret;
+}
+
+/* expecting rx buffer: request data[0] data[1] ... data[2] */
+static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)
+{
+ int status;
+
+ deb_data(">>> ");
+ debug_dump(tx, txlen, deb_data);
+
+ status = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0),
+ tx[0], USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0, tx, txlen,
+ USB_CTRL_GET_TIMEOUT);
+
+ if (status != txlen)
+ deb_data("ep 0 write error (status = %d, len: %d)\n",status,txlen);
+
+ return status < 0 ? status : 0;
+}
+
+/* expecting tx buffer: request data[0] ... data[n] (n <= 4) */
+int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
+{
+ u16 index, value;
+ int status;
+
+ if (txlen < 2) {
+ err("tx buffer length is smaller than 2. Makes no sense.");
+ return -EINVAL;
+ }
+ if (txlen > 4) {
+ err("tx buffer length is larger than 4. Not supported.");
+ return -EINVAL;
+ }
+
+ deb_data(">>> ");
+ debug_dump(tx,txlen,deb_data);
+
+ value = ((txlen - 2) << 8) | tx[1];
+ index = 0;
+ if (txlen > 2)
+ index |= (tx[2] << 8);
+ if (txlen > 3)
+ index |= tx[3];
+
+ status = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), tx[0],
+ USB_TYPE_VENDOR | USB_DIR_IN, value, index, rx, rxlen,
+ USB_CTRL_GET_TIMEOUT);
+
+ if (status < 0)
+ deb_info("ep 0 read error (status = %d)\n",status);
+
+ deb_data("<<< ");
+ debug_dump(rx, rxlen, deb_data);
+
+ return status; /* length in case of success */
+}
+
+int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)
+{
+ struct dib0700_state *st = d->priv;
+ int ret;
+
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ return -EINTR;
+ }
+
+ st->buf[0] = REQUEST_SET_GPIO;
+ st->buf[1] = gpio;
+ st->buf[2] = ((gpio_dir & 0x01) << 7) | ((gpio_val & 0x01) << 6);
+
+ ret = dib0700_ctrl_wr(d, st->buf, 3);
+
+ mutex_unlock(&d->usb_mutex);
+ return ret;
+}
+
+static int dib0700_set_usb_xfer_len(struct dvb_usb_device *d, u16 nb_ts_packets)
+{
+ struct dib0700_state *st = d->priv;
+ int ret;
+
+ if (st->fw_version >= 0x10201) {
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ return -EINTR;
+ }
+
+ st->buf[0] = REQUEST_SET_USB_XFER_LEN;
+ st->buf[1] = (nb_ts_packets >> 8) & 0xff;
+ st->buf[2] = nb_ts_packets & 0xff;
+
+ deb_info("set the USB xfer len to %i Ts packet\n", nb_ts_packets);
+
+ ret = dib0700_ctrl_wr(d, st->buf, 3);
+ mutex_unlock(&d->usb_mutex);
+ } else {
+ deb_info("this firmware does not allow to change the USB xfer len\n");
+ ret = -EIO;
+ }
+
+ return ret;
+}
+
+/*
+ * I2C master xfer function (supported in 1.20 firmware)
+ */
+static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
+ int num)
+{
+ /* The new i2c firmware messages are more reliable and in particular
+ properly support i2c read calls not preceded by a write */
+
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ struct dib0700_state *st = d->priv;
+ uint8_t bus_mode = 1; /* 0=eeprom bus, 1=frontend bus */
+ uint8_t gen_mode = 0; /* 0=master i2c, 1=gpio i2c */
+ uint8_t en_start = 0;
+ uint8_t en_stop = 0;
+ int result, i;
+
+ /* Ensure nobody else hits the i2c bus while we're sending our
+ sequence of messages, (such as the remote control thread) */
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EINTR;
+
+ for (i = 0; i < num; i++) {
+ if (i == 0) {
+ /* First message in the transaction */
+ en_start = 1;
+ } else if (!(msg[i].flags & I2C_M_NOSTART)) {
+ /* Device supports repeated-start */
+ en_start = 1;
+ } else {
+ /* Not the first packet and device doesn't support
+ repeated start */
+ en_start = 0;
+ }
+ if (i == (num - 1)) {
+ /* Last message in the transaction */
+ en_stop = 1;
+ }
+
+ if (msg[i].flags & I2C_M_RD) {
+ /* Read request */
+ u16 index, value;
+ uint8_t i2c_dest;
+
+ i2c_dest = (msg[i].addr << 1);
+ value = ((en_start << 7) | (en_stop << 6) |
+ (msg[i].len & 0x3F)) << 8 | i2c_dest;
+ /* I2C ctrl + FE bus; */
+ index = ((gen_mode << 6) & 0xC0) |
+ ((bus_mode << 4) & 0x30);
+
+ result = usb_control_msg(d->udev,
+ usb_rcvctrlpipe(d->udev, 0),
+ REQUEST_NEW_I2C_READ,
+ USB_TYPE_VENDOR | USB_DIR_IN,
+ value, index, msg[i].buf,
+ msg[i].len,
+ USB_CTRL_GET_TIMEOUT);
+ if (result < 0) {
+ deb_info("i2c read error (status = %d)\n", result);
+ break;
+ }
+
+ deb_data("<<< ");
+ debug_dump(msg[i].buf, msg[i].len, deb_data);
+
+ } else {
+ /* Write request */
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ mutex_unlock(&d->i2c_mutex);
+ return -EINTR;
+ }
+ st->buf[0] = REQUEST_NEW_I2C_WRITE;
+ st->buf[1] = msg[i].addr << 1;
+ st->buf[2] = (en_start << 7) | (en_stop << 6) |
+ (msg[i].len & 0x3F);
+ /* I2C ctrl + FE bus; */
+ st->buf[3] = ((gen_mode << 6) & 0xC0) |
+ ((bus_mode << 4) & 0x30);
+ /* The Actual i2c payload */
+ memcpy(&st->buf[4], msg[i].buf, msg[i].len);
+
+ deb_data(">>> ");
+ debug_dump(st->buf, msg[i].len + 4, deb_data);
+
+ result = usb_control_msg(d->udev,
+ usb_sndctrlpipe(d->udev, 0),
+ REQUEST_NEW_I2C_WRITE,
+ USB_TYPE_VENDOR | USB_DIR_OUT,
+ 0, 0, st->buf, msg[i].len + 4,
+ USB_CTRL_GET_TIMEOUT);
+ mutex_unlock(&d->usb_mutex);
+ if (result < 0) {
+ deb_info("i2c write error (status = %d)\n", result);
+ break;
+ }
+ }
+ }
+ mutex_unlock(&d->i2c_mutex);
+ return i;
+}
+
+/*
+ * I2C master xfer function (pre-1.20 firmware)
+ */
+static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
+ struct i2c_msg *msg, int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ struct dib0700_state *st = d->priv;
+ int i,len;
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EINTR;
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ mutex_unlock(&d->i2c_mutex);
+ return -EINTR;
+ }
+
+ for (i = 0; i < num; i++) {
+ /* fill in the address */
+ st->buf[1] = msg[i].addr << 1;
+ /* fill the buffer */
+ memcpy(&st->buf[2], msg[i].buf, msg[i].len);
+
+ /* write/read request */
+ if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+ st->buf[0] = REQUEST_I2C_READ;
+ st->buf[1] |= 1;
+
+ /* special thing in the current firmware: when length is zero the read-failed */
+ len = dib0700_ctrl_rd(d, st->buf, msg[i].len + 2,
+ msg[i+1].buf, msg[i+1].len);
+ if (len <= 0) {
+ deb_info("I2C read failed on address 0x%02x\n",
+ msg[i].addr);
+ break;
+ }
+
+ msg[i+1].len = len;
+
+ i++;
+ } else {
+ st->buf[0] = REQUEST_I2C_WRITE;
+ if (dib0700_ctrl_wr(d, st->buf, msg[i].len + 2) < 0)
+ break;
+ }
+ }
+ mutex_unlock(&d->usb_mutex);
+ mutex_unlock(&d->i2c_mutex);
+
+ return i;
+}
+
+static int dib0700_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
+ int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ struct dib0700_state *st = d->priv;
+
+ if (st->fw_use_new_i2c_api == 1) {
+ /* User running at least fw 1.20 */
+ return dib0700_i2c_xfer_new(adap, msg, num);
+ } else {
+ /* Use legacy calls */
+ return dib0700_i2c_xfer_legacy(adap, msg, num);
+ }
+}
+
+static u32 dib0700_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+struct i2c_algorithm dib0700_i2c_algo = {
+ .master_xfer = dib0700_i2c_xfer,
+ .functionality = dib0700_i2c_func,
+};
+
+int dib0700_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
+ struct dvb_usb_device_description **desc, int *cold)
+{
+ s16 ret;
+ u8 *b;
+
+ b = kmalloc(16, GFP_KERNEL);
+ if (!b)
+ return -ENOMEM;
+
+
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ REQUEST_GET_VERSION, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, b, 16, USB_CTRL_GET_TIMEOUT);
+
+ deb_info("FW GET_VERSION length: %d\n",ret);
+
+ *cold = ret <= 0;
+ deb_info("cold: %d\n", *cold);
+
+ kfree(b);
+ return 0;
+}
+
+static int dib0700_set_clock(struct dvb_usb_device *d, u8 en_pll,
+ u8 pll_src, u8 pll_range, u8 clock_gpio3, u16 pll_prediv,
+ u16 pll_loopdiv, u16 free_div, u16 dsuScaler)
+{
+ struct dib0700_state *st = d->priv;
+ int ret;
+
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ return -EINTR;
+ }
+
+ st->buf[0] = REQUEST_SET_CLOCK;
+ st->buf[1] = (en_pll << 7) | (pll_src << 6) |
+ (pll_range << 5) | (clock_gpio3 << 4);
+ st->buf[2] = (pll_prediv >> 8) & 0xff; /* MSB */
+ st->buf[3] = pll_prediv & 0xff; /* LSB */
+ st->buf[4] = (pll_loopdiv >> 8) & 0xff; /* MSB */
+ st->buf[5] = pll_loopdiv & 0xff; /* LSB */
+ st->buf[6] = (free_div >> 8) & 0xff; /* MSB */
+ st->buf[7] = free_div & 0xff; /* LSB */
+ st->buf[8] = (dsuScaler >> 8) & 0xff; /* MSB */
+ st->buf[9] = dsuScaler & 0xff; /* LSB */
+
+ ret = dib0700_ctrl_wr(d, st->buf, 10);
+ mutex_unlock(&d->usb_mutex);
+
+ return ret;
+}
+
+int dib0700_set_i2c_speed(struct dvb_usb_device *d, u16 scl_kHz)
+{
+ struct dib0700_state *st = d->priv;
+ u16 divider;
+ int ret;
+
+ if (scl_kHz == 0)
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ return -EINTR;
+ }
+
+ st->buf[0] = REQUEST_SET_I2C_PARAM;
+ divider = (u16) (30000 / scl_kHz);
+ st->buf[1] = 0;
+ st->buf[2] = (u8) (divider >> 8);
+ st->buf[3] = (u8) (divider & 0xff);
+ divider = (u16) (72000 / scl_kHz);
+ st->buf[4] = (u8) (divider >> 8);
+ st->buf[5] = (u8) (divider & 0xff);
+ divider = (u16) (72000 / scl_kHz); /* clock: 72MHz */
+ st->buf[6] = (u8) (divider >> 8);
+ st->buf[7] = (u8) (divider & 0xff);
+
+ deb_info("setting I2C speed: %04x %04x %04x (%d kHz).",
+ (st->buf[2] << 8) | (st->buf[3]), (st->buf[4] << 8) |
+ st->buf[5], (st->buf[6] << 8) | st->buf[7], scl_kHz);
+
+ ret = dib0700_ctrl_wr(d, st->buf, 8);
+ mutex_unlock(&d->usb_mutex);
+
+ return ret;
+}
+
+
+int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3)
+{
+ switch (clk_MHz) {
+ case 72: dib0700_set_clock(d, 1, 0, 1, clock_out_gp3, 2, 24, 0, 0x4c); break;
+ default: return -EINVAL;
+ }
+ return 0;
+}
+
+static int dib0700_jumpram(struct usb_device *udev, u32 address)
+{
+ int ret = 0, actlen;
+ u8 *buf;
+
+ buf = kmalloc(8, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ buf[0] = REQUEST_JUMPRAM;
+ buf[1] = 0;
+ buf[2] = 0;
+ buf[3] = 0;
+ buf[4] = (address >> 24) & 0xff;
+ buf[5] = (address >> 16) & 0xff;
+ buf[6] = (address >> 8) & 0xff;
+ buf[7] = address & 0xff;
+
+ if ((ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 0x01),buf,8,&actlen,1000)) < 0) {
+ deb_fw("jumpram to 0x%x failed\n",address);
+ goto out;
+ }
+ if (actlen != 8) {
+ deb_fw("jumpram to 0x%x failed\n",address);
+ ret = -EIO;
+ goto out;
+ }
+out:
+ kfree(buf);
+ return ret;
+}
+
+int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw)
+{
+ struct hexline hx;
+ int pos = 0, ret, act_len, i, adap_num;
+ u8 *buf;
+ u32 fw_version;
+
+ buf = kmalloc(260, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) {
+ deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n",
+ hx.addr, hx.len, hx.chk);
+
+ buf[0] = hx.len;
+ buf[1] = (hx.addr >> 8) & 0xff;
+ buf[2] = hx.addr & 0xff;
+ buf[3] = hx.type;
+ memcpy(&buf[4],hx.data,hx.len);
+ buf[4+hx.len] = hx.chk;
+
+ ret = usb_bulk_msg(udev,
+ usb_sndbulkpipe(udev, 0x01),
+ buf,
+ hx.len + 5,
+ &act_len,
+ 1000);
+
+ if (ret < 0) {
+ err("firmware download failed at %d with %d",pos,ret);
+ goto out;
+ }
+ }
+
+ if (ret == 0) {
+ /* start the firmware */
+ if ((ret = dib0700_jumpram(udev, 0x70000000)) == 0) {
+ info("firmware started successfully.");
+ msleep(500);
+ }
+ } else
+ ret = -EIO;
+
+ /* the number of ts packet has to be at least 1 */
+ if (nb_packet_buffer_size < 1)
+ nb_packet_buffer_size = 1;
+
+ /* get the fimware version */
+ usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ REQUEST_GET_VERSION,
+ USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
+ buf, 16, USB_CTRL_GET_TIMEOUT);
+ fw_version = (buf[8] << 24) | (buf[9] << 16) | (buf[10] << 8) | buf[11];
+
+ /* set the buffer size - DVB-USB is allocating URB buffers
+ * only after the firwmare download was successful */
+ for (i = 0; i < dib0700_device_count; i++) {
+ for (adap_num = 0; adap_num < dib0700_devices[i].num_adapters;
+ adap_num++) {
+ if (fw_version >= 0x10201) {
+ dib0700_devices[i].adapter[adap_num].fe[0].stream.u.bulk.buffersize = 188*nb_packet_buffer_size;
+ } else {
+ /* for fw version older than 1.20.1,
+ * the buffersize has to be n times 512 */
+ dib0700_devices[i].adapter[adap_num].fe[0].stream.u.bulk.buffersize = ((188*nb_packet_buffer_size+188/2)/512)*512;
+ if (dib0700_devices[i].adapter[adap_num].fe[0].stream.u.bulk.buffersize < 512)
+ dib0700_devices[i].adapter[adap_num].fe[0].stream.u.bulk.buffersize = 512;
+ }
+ }
+ }
+out:
+ kfree(buf);
+ return ret;
+}
+
+int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
+{
+ struct dib0700_state *st = adap->dev->priv;
+ int ret;
+
+ if ((onoff != 0) && (st->fw_version >= 0x10201)) {
+ /* for firmware later than 1.20.1,
+ * the USB xfer length can be set */
+ ret = dib0700_set_usb_xfer_len(adap->dev,
+ st->nb_packet_buffer_size);
+ if (ret < 0) {
+ deb_info("can not set the USB xfer len\n");
+ return ret;
+ }
+ }
+
+ mutex_lock(&adap->dev->usb_mutex);
+
+ st->buf[0] = REQUEST_ENABLE_VIDEO;
+ /* this bit gives a kind of command,
+ * rather than enabling something or not */
+ st->buf[1] = (onoff << 4) | 0x00;
+
+ if (st->disable_streaming_master_mode == 1)
+ st->buf[2] = 0x00;
+ else
+ st->buf[2] = 0x01 << 4; /* Master mode */
+
+ st->buf[3] = 0x00;
+
+ deb_info("modifying (%d) streaming state for %d\n", onoff, adap->id);
+
+ st->channel_state &= ~0x3;
+ if ((adap->fe_adap[0].stream.props.endpoint != 2)
+ && (adap->fe_adap[0].stream.props.endpoint != 3)) {
+ deb_info("the endpoint number (%i) is not correct, use the adapter id instead", adap->fe_adap[0].stream.props.endpoint);
+ if (onoff)
+ st->channel_state |= 1 << (adap->id);
+ else
+ st->channel_state |= 1 << ~(adap->id);
+ } else {
+ if (onoff)
+ st->channel_state |= 1 << (adap->fe_adap[0].stream.props.endpoint-2);
+ else
+ st->channel_state |= 1 << (3-adap->fe_adap[0].stream.props.endpoint);
+ }
+
+ st->buf[2] |= st->channel_state;
+
+ deb_info("data for streaming: %x %x\n", st->buf[1], st->buf[2]);
+
+ ret = dib0700_ctrl_wr(adap->dev, st->buf, 4);
+ mutex_unlock(&adap->dev->usb_mutex);
+
+ return ret;
+}
+
+int dib0700_change_protocol(struct rc_dev *rc, u64 *rc_type)
+{
+ struct dvb_usb_device *d = rc->priv;
+ struct dib0700_state *st = d->priv;
+ int new_proto, ret;
+
+ if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
+ err("could not acquire lock");
+ return -EINTR;
+ }
+
+ st->buf[0] = REQUEST_SET_RC;
+ st->buf[1] = 0;
+ st->buf[2] = 0;
+
+ /* Set the IR mode */
+ if (*rc_type & RC_BIT_RC5) {
+ new_proto = 1;
+ *rc_type = RC_BIT_RC5;
+ } else if (*rc_type & RC_BIT_NEC) {
+ new_proto = 0;
+ *rc_type = RC_BIT_NEC;
+ } else if (*rc_type & RC_BIT_RC6_MCE) {
+ if (st->fw_version < 0x10200) {
+ ret = -EINVAL;
+ goto out;
+ }
+ new_proto = 2;
+ *rc_type = RC_BIT_RC6_MCE;
+ } else {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ st->buf[1] = new_proto;
+
+ ret = dib0700_ctrl_wr(d, st->buf, 3);
+ if (ret < 0) {
+ err("ir protocol setup failed");
+ goto out;
+ }
+
+ d->props.rc.core.protocol = *rc_type;
+
+out:
+ mutex_unlock(&d->usb_mutex);
+ return ret;
+}
+
+/* This is the structure of the RC response packet starting in firmware 1.20 */
+struct dib0700_rc_response {
+ u8 report_id;
+ u8 data_state;
+ u8 system;
+ u8 not_system;
+ u8 data;
+ u8 not_data;
+};
+#define RC_MSG_SIZE_V1_20 6
+
+static void dib0700_rc_urb_completion(struct urb *purb)
+{
+ struct dvb_usb_device *d = purb->context;
+ struct dib0700_rc_response *poll_reply;
+ enum rc_type protocol;
+ u32 uninitialized_var(keycode);
+ u8 toggle;
+
+ deb_info("%s()\n", __func__);
+ if (d->rc_dev == NULL) {
+ /* This will occur if disable_rc_polling=1 */
+ kfree(purb->transfer_buffer);
+ usb_free_urb(purb);
+ return;
+ }
+
+ poll_reply = purb->transfer_buffer;
+
+ if (purb->status < 0) {
+ deb_info("discontinuing polling\n");
+ kfree(purb->transfer_buffer);
+ usb_free_urb(purb);
+ return;
+ }
+
+ if (purb->actual_length != RC_MSG_SIZE_V1_20) {
+ deb_info("malformed rc msg size=%d\n", purb->actual_length);
+ goto resubmit;
+ }
+
+ deb_data("IR ID = %02X state = %02X System = %02X %02X Cmd = %02X %02X (len %d)\n",
+ poll_reply->report_id, poll_reply->data_state,
+ poll_reply->system, poll_reply->not_system,
+ poll_reply->data, poll_reply->not_data,
+ purb->actual_length);
+
+ switch (d->props.rc.core.protocol) {
+ case RC_BIT_NEC:
+ protocol = RC_TYPE_NEC;
+ toggle = 0;
+
+ /* NEC protocol sends repeat code as 0 0 0 FF */
+ if (poll_reply->system == 0x00 &&
+ poll_reply->not_system == 0x00 &&
+ poll_reply->data == 0x00 &&
+ poll_reply->not_data == 0xff) {
+ poll_reply->data_state = 2;
+ break;
+ }
+
+ if ((poll_reply->data ^ poll_reply->not_data) != 0xff) {
+ deb_data("NEC32 protocol\n");
+ keycode = RC_SCANCODE_NEC32(poll_reply->system << 24 |
+ poll_reply->not_system << 16 |
+ poll_reply->data << 8 |
+ poll_reply->not_data);
+ } else if ((poll_reply->system ^ poll_reply->not_system) != 0xff) {
+ deb_data("NEC extended protocol\n");
+ keycode = RC_SCANCODE_NECX(poll_reply->system << 8 |
+ poll_reply->not_system,
+ poll_reply->data);
+
+ } else {
+ deb_data("NEC normal protocol\n");
+ keycode = RC_SCANCODE_NEC(poll_reply->system,
+ poll_reply->data);
+ }
+
+ break;
+ default:
+ deb_data("RC5 protocol\n");
+ protocol = RC_TYPE_RC5;
+ toggle = poll_reply->report_id;
+ keycode = RC_SCANCODE_RC5(poll_reply->system, poll_reply->data);
+
+ break;
+ }
+
+ if ((poll_reply->data + poll_reply->not_data) != 0xff) {
+ /* Key failed integrity check */
+ err("key failed integrity check: %02x %02x %02x %02x",
+ poll_reply->system, poll_reply->not_system,
+ poll_reply->data, poll_reply->not_data);
+ goto resubmit;
+ }
+
+ rc_keydown(d->rc_dev, protocol, keycode, toggle);
+
+resubmit:
+ /* Clean the buffer before we requeue */
+ memset(purb->transfer_buffer, 0, RC_MSG_SIZE_V1_20);
+
+ /* Requeue URB */
+ usb_submit_urb(purb, GFP_ATOMIC);
+}
+
+int dib0700_rc_setup(struct dvb_usb_device *d, struct usb_interface *intf)
+{
+ struct dib0700_state *st = d->priv;
+ struct urb *purb;
+ const struct usb_endpoint_descriptor *e;
+ int ret, rc_ep = 1;
+ unsigned int pipe = 0;
+
+ /* Poll-based. Don't initialize bulk mode */
+ if (st->fw_version < 0x10200 || !intf)
+ return 0;
+
+ /* Starting in firmware 1.20, the RC info is provided on a bulk pipe */
+
+ purb = usb_alloc_urb(0, GFP_KERNEL);
+ if (purb == NULL) {
+ err("rc usb alloc urb failed");
+ return -ENOMEM;
+ }
+
+ purb->transfer_buffer = kzalloc(RC_MSG_SIZE_V1_20, GFP_KERNEL);
+ if (purb->transfer_buffer == NULL) {
+ err("rc kzalloc failed");
+ usb_free_urb(purb);
+ return -ENOMEM;
+ }
+
+ purb->status = -EINPROGRESS;
+
+ /*
+ * Some devices like the Hauppauge NovaTD model 52009 use an interrupt
+ * endpoint, while others use a bulk one.
+ */
+ e = &intf->altsetting[0].endpoint[rc_ep].desc;
+ if (usb_endpoint_dir_in(e)) {
+ if (usb_endpoint_xfer_bulk(e)) {
+ pipe = usb_rcvbulkpipe(d->udev, rc_ep);
+ usb_fill_bulk_urb(purb, d->udev, pipe,
+ purb->transfer_buffer,
+ RC_MSG_SIZE_V1_20,
+ dib0700_rc_urb_completion, d);
+
+ } else if (usb_endpoint_xfer_int(e)) {
+ pipe = usb_rcvintpipe(d->udev, rc_ep);
+ usb_fill_int_urb(purb, d->udev, pipe,
+ purb->transfer_buffer,
+ RC_MSG_SIZE_V1_20,
+ dib0700_rc_urb_completion, d, 1);
+ }
+ }
+
+ if (!pipe) {
+ err("There's no endpoint for remote controller");
+ kfree(purb->transfer_buffer);
+ usb_free_urb(purb);
+ return 0;
+ }
+
+ ret = usb_submit_urb(purb, GFP_ATOMIC);
+ if (ret) {
+ err("rc submit urb failed");
+ kfree(purb->transfer_buffer);
+ usb_free_urb(purb);
+ }
+
+ return ret;
+}
+
+static int dib0700_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ int i;
+ struct dvb_usb_device *dev;
+
+ for (i = 0; i < dib0700_device_count; i++)
+ if (dvb_usb_device_init(intf, &dib0700_devices[i], THIS_MODULE,
+ &dev, adapter_nr) == 0) {
+ struct dib0700_state *st = dev->priv;
+ u32 hwversion, romversion, fw_version, fwtype;
+
+ dib0700_get_version(dev, &hwversion, &romversion,
+ &fw_version, &fwtype);
+
+ deb_info("Firmware version: %x, %d, 0x%x, %d\n",
+ hwversion, romversion, fw_version, fwtype);
+
+ st->fw_version = fw_version;
+ st->nb_packet_buffer_size = (u32)nb_packet_buffer_size;
+
+ /* Disable polling mode on newer firmwares */
+ if (st->fw_version >= 0x10200)
+ dev->props.rc.core.bulk_mode = true;
+ else
+ dev->props.rc.core.bulk_mode = false;
+
+ dib0700_rc_setup(dev, intf);
+
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+static struct usb_driver dib0700_driver = {
+ .name = "dvb_usb_dib0700",
+ .probe = dib0700_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = dib0700_usb_id_table,
+};
+
+module_usb_driver(dib0700_driver);
+
+MODULE_FIRMWARE("dvb-usb-dib0700-1.20.fw");
+MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
+MODULE_DESCRIPTION("Driver for devices based on DiBcom DiB0700 - USB bridge");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff