--- /dev/null
+/* DVB USB compliant Linux driver for the Friio USB2.0 ISDB-T receiver.
+ *
+ * Copyright (C) 2009 Akihiro Tsukada <tskd2@yahoo.co.jp>
+ *
+ * This module is based off the the gl861 and vp702x modules.
+ *
+ * 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.
+ *
+ * see Documentation/dvb/README.dvb-usb for more information
+ */
+#include "friio.h"
+
+/* debug */
+int dvb_usb_friio_debug;
+module_param_named(debug, dvb_usb_friio_debug, int, 0644);
+MODULE_PARM_DESC(debug,
+ "set debugging level (1=info,2=xfer,4=rc,8=fe (or-able))."
+ DVB_USB_DEBUG_STATUS);
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+/**
+ * Indirect I2C access to the PLL via FE.
+ * whole I2C protocol data to the PLL is sent via the FE's I2C register.
+ * This is done by a control msg to the FE with the I2C data accompanied, and
+ * a specific USB request number is assigned for that purpose.
+ *
+ * this func sends wbuf[1..] to the I2C register wbuf[0] at addr (= at FE).
+ * TODO: refoctored, smarter i2c functions.
+ */
+static int gl861_i2c_ctrlmsg_data(struct dvb_usb_device *d, u8 addr,
+ u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+ u16 index = wbuf[0]; /* must be JDVBT90502_2ND_I2C_REG(=0xFE) */
+ u16 value = addr << (8 + 1);
+ int wo = (rbuf == NULL || rlen == 0); /* write only */
+ u8 req, type;
+
+ deb_xfer("write to PLL:0x%02x via FE reg:0x%02x, len:%d\n",
+ wbuf[1], wbuf[0], wlen - 1);
+
+ if (wo && wlen >= 2) {
+ req = GL861_REQ_I2C_DATA_CTRL_WRITE;
+ type = GL861_WRITE;
+ udelay(20);
+ return usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
+ req, type, value, index,
+ &wbuf[1], wlen - 1, 2000);
+ }
+
+ deb_xfer("not supported ctrl-msg, aborting.");
+ return -EINVAL;
+}
+
+/* normal I2C access (without extra data arguments).
+ * write to the register wbuf[0] at I2C address addr with the value wbuf[1],
+ * or read from the register wbuf[0].
+ * register address can be 16bit (wbuf[2]<<8 | wbuf[0]) if wlen==3
+ */
+static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
+ u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+ u16 index;
+ u16 value = addr << (8 + 1);
+ int wo = (rbuf == NULL || rlen == 0); /* write-only */
+ u8 req, type;
+ unsigned int pipe;
+
+ /* special case for the indirect I2C access to the PLL via FE, */
+ if (addr == friio_fe_config.demod_address &&
+ wbuf[0] == JDVBT90502_2ND_I2C_REG)
+ return gl861_i2c_ctrlmsg_data(d, addr, wbuf, wlen, rbuf, rlen);
+
+ if (wo) {
+ req = GL861_REQ_I2C_WRITE;
+ type = GL861_WRITE;
+ pipe = usb_sndctrlpipe(d->udev, 0);
+ } else { /* rw */
+ req = GL861_REQ_I2C_READ;
+ type = GL861_READ;
+ pipe = usb_rcvctrlpipe(d->udev, 0);
+ }
+
+ switch (wlen) {
+ case 1:
+ index = wbuf[0];
+ break;
+ case 2:
+ index = wbuf[0];
+ value = value + wbuf[1];
+ break;
+ case 3:
+ /* special case for 16bit register-address */
+ index = (wbuf[2] << 8) | wbuf[0];
+ value = value + wbuf[1];
+ break;
+ default:
+ deb_xfer("wlen = %x, aborting.", wlen);
+ return -EINVAL;
+ }
+ msleep(1);
+ return usb_control_msg(d->udev, pipe, req, type,
+ value, index, rbuf, rlen, 2000);
+}
+
+/* I2C */
+static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+ int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ int i;
+
+
+ if (num > 2)
+ return -EINVAL;
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ for (i = 0; i < num; i++) {
+ /* write/read request */
+ if (i + 1 < num && (msg[i + 1].flags & I2C_M_RD)) {
+ if (gl861_i2c_msg(d, msg[i].addr,
+ msg[i].buf, msg[i].len,
+ msg[i + 1].buf, msg[i + 1].len) < 0)
+ break;
+ i++;
+ } else
+ if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
+ msg[i].len, NULL, 0) < 0)
+ break;
+ }
+
+ mutex_unlock(&d->i2c_mutex);
+ return i;
+}
+
+static u32 gl861_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static int friio_ext_ctl(struct dvb_usb_adapter *adap,
+ u32 sat_color, int lnb_on)
+{
+ int i;
+ int ret;
+ struct i2c_msg msg;
+ u8 *buf;
+ u32 mask;
+ u8 lnb = (lnb_on) ? FRIIO_CTL_LNB : 0;
+
+ buf = kmalloc(2, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ msg.addr = 0x00;
+ msg.flags = 0;
+ msg.len = 2;
+ msg.buf = buf;
+
+ buf[0] = 0x00;
+
+ /* send 2bit header (&B10) */
+ buf[1] = lnb | FRIIO_CTL_LED | FRIIO_CTL_STROBE;
+ ret = gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+ buf[1] |= FRIIO_CTL_CLK;
+ ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+
+ buf[1] = lnb | FRIIO_CTL_STROBE;
+ ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+ buf[1] |= FRIIO_CTL_CLK;
+ ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+
+ /* send 32bit(satur, R, G, B) data in serial */
+ mask = 1 << 31;
+ for (i = 0; i < 32; i++) {
+ buf[1] = lnb | FRIIO_CTL_STROBE;
+ if (sat_color & mask)
+ buf[1] |= FRIIO_CTL_LED;
+ ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+ buf[1] |= FRIIO_CTL_CLK;
+ ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+ mask >>= 1;
+ }
+
+ /* set the strobe off */
+ buf[1] = lnb;
+ ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+ buf[1] |= FRIIO_CTL_CLK;
+ ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
+
+ kfree(buf);
+ return (ret == 70);
+}
+
+
+static int friio_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff);
+
+/* TODO: move these init cmds to the FE's init routine? */
+static u8 streaming_init_cmds[][2] = {
+ {0x33, 0x08},
+ {0x37, 0x40},
+ {0x3A, 0x1F},
+ {0x3B, 0xFF},
+ {0x3C, 0x1F},
+ {0x3D, 0xFF},
+ {0x38, 0x00},
+ {0x35, 0x00},
+ {0x39, 0x00},
+ {0x36, 0x00},
+};
+static int cmdlen = sizeof(streaming_init_cmds) / 2;
+
+/*
+ * Command sequence in this init function is a replay
+ * of the captured USB commands from the Windows proprietary driver.
+ */
+static int friio_initialize(struct dvb_usb_device *d)
+{
+ int ret;
+ int i;
+ int retry = 0;
+ u8 *rbuf, *wbuf;
+
+ deb_info("%s called.\n", __func__);
+
+ wbuf = kmalloc(3, GFP_KERNEL);
+ if (!wbuf)
+ return -ENOMEM;
+
+ rbuf = kmalloc(2, GFP_KERNEL);
+ if (!rbuf) {
+ kfree(wbuf);
+ return -ENOMEM;
+ }
+
+ /* use gl861_i2c_msg instead of gl861_i2c_xfer(), */
+ /* because the i2c device is not set up yet. */
+ wbuf[0] = 0x11;
+ wbuf[1] = 0x02;
+ ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
+ if (ret < 0)
+ goto error;
+ msleep(2);
+
+ wbuf[0] = 0x11;
+ wbuf[1] = 0x00;
+ ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
+ if (ret < 0)
+ goto error;
+ msleep(1);
+
+ /* following msgs should be in the FE's init code? */
+ /* cmd sequence to identify the device type? (friio black/white) */
+ wbuf[0] = 0x03;
+ wbuf[1] = 0x80;
+ /* can't use gl861_i2c_cmd, as the register-addr is 16bit(0x0100) */
+ ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
+ GL861_REQ_I2C_DATA_CTRL_WRITE, GL861_WRITE,
+ 0x1200, 0x0100, wbuf, 2, 2000);
+ if (ret < 0)
+ goto error;
+
+ msleep(2);
+ wbuf[0] = 0x00;
+ wbuf[2] = 0x01; /* reg.0x0100 */
+ wbuf[1] = 0x00;
+ ret = gl861_i2c_msg(d, 0x12 >> 1, wbuf, 3, rbuf, 2);
+ /* my Friio White returns 0xffff. */
+ if (ret < 0 || rbuf[0] != 0xff || rbuf[1] != 0xff)
+ goto error;
+
+ msleep(2);
+ wbuf[0] = 0x03;
+ wbuf[1] = 0x80;
+ ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
+ GL861_REQ_I2C_DATA_CTRL_WRITE, GL861_WRITE,
+ 0x9000, 0x0100, wbuf, 2, 2000);
+ if (ret < 0)
+ goto error;
+
+ msleep(2);
+ wbuf[0] = 0x00;
+ wbuf[2] = 0x01; /* reg.0x0100 */
+ wbuf[1] = 0x00;
+ ret = gl861_i2c_msg(d, 0x90 >> 1, wbuf, 3, rbuf, 2);
+ /* my Friio White returns 0xffff again. */
+ if (ret < 0 || rbuf[0] != 0xff || rbuf[1] != 0xff)
+ goto error;
+
+ msleep(1);
+
+restart:
+ /* ============ start DEMOD init cmds ================== */
+ /* read PLL status to clear the POR bit */
+ wbuf[0] = JDVBT90502_2ND_I2C_REG;
+ wbuf[1] = (FRIIO_PLL_ADDR << 1) + 1; /* +1 for reading */
+ ret = gl861_i2c_msg(d, FRIIO_DEMOD_ADDR, wbuf, 2, NULL, 0);
+ if (ret < 0)
+ goto error;
+
+ msleep(5);
+ /* note: DEMODULATOR has 16bit register-address. */
+ wbuf[0] = 0x00;
+ wbuf[2] = 0x01; /* reg addr: 0x0100 */
+ wbuf[1] = 0x00; /* val: not used */
+ ret = gl861_i2c_msg(d, FRIIO_DEMOD_ADDR, wbuf, 3, rbuf, 1);
+ if (ret < 0)
+ goto error;
+/*
+ msleep(1);
+ wbuf[0] = 0x80;
+ wbuf[1] = 0x00;
+ ret = gl861_i2c_msg(d, FRIIO_DEMOD_ADDR, wbuf, 2, rbuf, 1);
+ if (ret < 0)
+ goto error;
+ */
+ if (rbuf[0] & 0x80) { /* still in PowerOnReset state? */
+ if (++retry > 3) {
+ deb_info("failed to get the correct"
+ " FE demod status:0x%02x\n", rbuf[0]);
+ goto error;
+ }
+ msleep(100);
+ goto restart;
+ }
+
+ /* TODO: check return value in rbuf */
+ /* =========== end DEMOD init cmds ===================== */
+ msleep(1);
+
+ wbuf[0] = 0x30;
+ wbuf[1] = 0x04;
+ ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
+ if (ret < 0)
+ goto error;
+
+ msleep(2);
+ /* following 2 cmds unnecessary? */
+ wbuf[0] = 0x00;
+ wbuf[1] = 0x01;
+ ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
+ if (ret < 0)
+ goto error;
+
+ wbuf[0] = 0x06;
+ wbuf[1] = 0x0F;
+ ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
+ if (ret < 0)
+ goto error;
+
+ /* some streaming ctl cmds (maybe) */
+ msleep(10);
+ for (i = 0; i < cmdlen; i++) {
+ ret = gl861_i2c_msg(d, 0x00, streaming_init_cmds[i], 2,
+ NULL, 0);
+ if (ret < 0)
+ goto error;
+ msleep(1);
+ }
+ msleep(20);
+
+ /* change the LED color etc. */
+ ret = friio_streaming_ctrl(&d->adapter[0], 0);
+ if (ret < 0)
+ goto error;
+
+ return 0;
+
+error:
+ kfree(wbuf);
+ kfree(rbuf);
+ deb_info("%s:ret == %d\n", __func__, ret);
+ return -EIO;
+}
+
+/* Callbacks for DVB USB */
+
+static int friio_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
+{
+ int ret;
+
+ deb_info("%s called.(%d)\n", __func__, onoff);
+
+ /* set the LED color and saturation (and LNB on) */
+ if (onoff)
+ ret = friio_ext_ctl(adap, 0x6400ff64, 1);
+ else
+ ret = friio_ext_ctl(adap, 0x96ff00ff, 1);
+
+ if (ret != 1) {
+ deb_info("%s failed to send cmdx. ret==%d\n", __func__, ret);
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int friio_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ if (friio_initialize(adap->dev) < 0)
+ return -EIO;
+
+ adap->fe_adap[0].fe = jdvbt90502_attach(adap->dev);
+ if (adap->fe_adap[0].fe == NULL)
+ return -EIO;
+
+ return 0;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties friio_properties;
+
+static int friio_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct dvb_usb_device *d;
+ struct usb_host_interface *alt;
+ int ret;
+
+ if (intf->num_altsetting < GL861_ALTSETTING_COUNT)
+ return -ENODEV;
+
+ alt = usb_altnum_to_altsetting(intf, FRIIO_BULK_ALTSETTING);
+ if (alt == NULL) {
+ deb_rc("not alt found!\n");
+ return -ENODEV;
+ }
+ ret = usb_set_interface(interface_to_usbdev(intf),
+ alt->desc.bInterfaceNumber,
+ alt->desc.bAlternateSetting);
+ if (ret != 0) {
+ deb_rc("failed to set alt-setting!\n");
+ return ret;
+ }
+
+ ret = dvb_usb_device_init(intf, &friio_properties,
+ THIS_MODULE, &d, adapter_nr);
+ if (ret == 0)
+ friio_streaming_ctrl(&d->adapter[0], 1);
+
+ return ret;
+}
+
+
+struct jdvbt90502_config friio_fe_config = {
+ .demod_address = FRIIO_DEMOD_ADDR,
+ .pll_address = FRIIO_PLL_ADDR,
+};
+
+static struct i2c_algorithm gl861_i2c_algo = {
+ .master_xfer = gl861_i2c_xfer,
+ .functionality = gl861_i2c_func,
+};
+
+static struct usb_device_id friio_table[] = {
+ { USB_DEVICE(USB_VID_774, USB_PID_FRIIO_WHITE) },
+ { } /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, friio_table);
+
+
+static struct dvb_usb_device_properties friio_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+ .usb_ctrl = DEVICE_SPECIFIC,
+
+ .size_of_priv = 0,
+
+ .num_adapters = 1,
+ .adapter = {
+ /* caps:0 => no pid filter, 188B TS packet */
+ /* GL861 has a HW pid filter, but no info available. */
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .caps = 0,
+
+ .frontend_attach = friio_frontend_attach,
+ .streaming_ctrl = friio_streaming_ctrl,
+
+ .stream = {
+ .type = USB_BULK,
+ /* count <= MAX_NO_URBS_FOR_DATA_STREAM(10) */
+ .count = 8,
+ .endpoint = 0x01,
+ .u = {
+ /* GL861 has 6KB buf inside */
+ .bulk = {
+ .buffersize = 16384,
+ }
+ }
+ },
+ }},
+ }
+ },
+ .i2c_algo = &gl861_i2c_algo,
+
+ .num_device_descs = 1,
+ .devices = {
+ {
+ .name = "774 Friio ISDB-T USB2.0",
+ .cold_ids = { NULL },
+ .warm_ids = { &friio_table[0], NULL },
+ },
+ }
+};
+
+static struct usb_driver friio_driver = {
+ .name = "dvb_usb_friio",
+ .probe = friio_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = friio_table,
+};
+
+module_usb_driver(friio_driver);
+
+MODULE_AUTHOR("Akihiro Tsukada <tskd2@yahoo.co.jp>");
+MODULE_DESCRIPTION("Driver for Friio ISDB-T USB2.0 Receiver");
+MODULE_VERSION("0.2");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff