526 lines
12 KiB
C
526 lines
12 KiB
C
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/* DVB USB compliant Linux driver for the Friio USB2.0 ISDB-T receiver.
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*
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* Copyright (C) 2009 Akihiro Tsukada <tskd2@yahoo.co.jp>
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*
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* This module is based off the the gl861 and vp702x modules.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, version 2.
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*
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* see Documentation/dvb/README.dvb-usb for more information
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*/
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#include "friio.h"
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/* debug */
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int dvb_usb_friio_debug;
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module_param_named(debug, dvb_usb_friio_debug, int, 0644);
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MODULE_PARM_DESC(debug,
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"set debugging level (1=info,2=xfer,4=rc,8=fe (or-able))."
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DVB_USB_DEBUG_STATUS);
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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/**
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* Indirect I2C access to the PLL via FE.
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* whole I2C protocol data to the PLL is sent via the FE's I2C register.
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* This is done by a control msg to the FE with the I2C data accompanied, and
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* a specific USB request number is assigned for that purpose.
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*
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* this func sends wbuf[1..] to the I2C register wbuf[0] at addr (= at FE).
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* TODO: refoctored, smarter i2c functions.
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*/
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static int gl861_i2c_ctrlmsg_data(struct dvb_usb_device *d, u8 addr,
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u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
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{
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u16 index = wbuf[0]; /* must be JDVBT90502_2ND_I2C_REG(=0xFE) */
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u16 value = addr << (8 + 1);
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int wo = (rbuf == NULL || rlen == 0); /* write only */
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u8 req, type;
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deb_xfer("write to PLL:0x%02x via FE reg:0x%02x, len:%d\n",
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wbuf[1], wbuf[0], wlen - 1);
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if (wo && wlen >= 2) {
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req = GL861_REQ_I2C_DATA_CTRL_WRITE;
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type = GL861_WRITE;
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udelay(20);
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return usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
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req, type, value, index,
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&wbuf[1], wlen - 1, 2000);
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}
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deb_xfer("not supported ctrl-msg, aborting.");
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return -EINVAL;
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}
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/* normal I2C access (without extra data arguments).
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* write to the register wbuf[0] at I2C address addr with the value wbuf[1],
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* or read from the register wbuf[0].
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* register address can be 16bit (wbuf[2]<<8 | wbuf[0]) if wlen==3
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*/
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static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
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u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
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{
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u16 index;
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u16 value = addr << (8 + 1);
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int wo = (rbuf == NULL || rlen == 0); /* write-only */
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u8 req, type;
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unsigned int pipe;
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/* special case for the indirect I2C access to the PLL via FE, */
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if (addr == friio_fe_config.demod_address &&
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wbuf[0] == JDVBT90502_2ND_I2C_REG)
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return gl861_i2c_ctrlmsg_data(d, addr, wbuf, wlen, rbuf, rlen);
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if (wo) {
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req = GL861_REQ_I2C_WRITE;
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type = GL861_WRITE;
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pipe = usb_sndctrlpipe(d->udev, 0);
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} else { /* rw */
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req = GL861_REQ_I2C_READ;
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type = GL861_READ;
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pipe = usb_rcvctrlpipe(d->udev, 0);
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}
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switch (wlen) {
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case 1:
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index = wbuf[0];
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break;
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case 2:
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index = wbuf[0];
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value = value + wbuf[1];
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break;
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case 3:
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/* special case for 16bit register-address */
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index = (wbuf[2] << 8) | wbuf[0];
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value = value + wbuf[1];
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break;
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default:
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deb_xfer("wlen = %x, aborting.", wlen);
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return -EINVAL;
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}
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msleep(1);
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return usb_control_msg(d->udev, pipe, req, type,
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value, index, rbuf, rlen, 2000);
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}
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/* I2C */
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static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
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int num)
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{
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struct dvb_usb_device *d = i2c_get_adapdata(adap);
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int i;
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if (num > 2)
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return -EINVAL;
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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for (i = 0; i < num; i++) {
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/* write/read request */
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if (i + 1 < num && (msg[i + 1].flags & I2C_M_RD)) {
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if (gl861_i2c_msg(d, msg[i].addr,
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msg[i].buf, msg[i].len,
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msg[i + 1].buf, msg[i + 1].len) < 0)
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break;
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i++;
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} else
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if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
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msg[i].len, NULL, 0) < 0)
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break;
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}
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mutex_unlock(&d->i2c_mutex);
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return i;
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}
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static u32 gl861_i2c_func(struct i2c_adapter *adapter)
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{
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return I2C_FUNC_I2C;
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}
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static int friio_ext_ctl(struct dvb_usb_adapter *adap,
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u32 sat_color, int lnb_on)
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{
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int i;
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int ret;
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struct i2c_msg msg;
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u8 buf[2];
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u32 mask;
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u8 lnb = (lnb_on) ? FRIIO_CTL_LNB : 0;
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msg.addr = 0x00;
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msg.flags = 0;
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msg.len = 2;
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msg.buf = buf;
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buf[0] = 0x00;
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/* send 2bit header (&B10) */
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buf[1] = lnb | FRIIO_CTL_LED | FRIIO_CTL_STROBE;
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ret = gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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buf[1] |= FRIIO_CTL_CLK;
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ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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buf[1] = lnb | FRIIO_CTL_STROBE;
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ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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buf[1] |= FRIIO_CTL_CLK;
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ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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/* send 32bit(satur, R, G, B) data in serial */
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mask = 1 << 31;
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for (i = 0; i < 32; i++) {
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buf[1] = lnb | FRIIO_CTL_STROBE;
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if (sat_color & mask)
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buf[1] |= FRIIO_CTL_LED;
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ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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buf[1] |= FRIIO_CTL_CLK;
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ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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mask >>= 1;
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}
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/* set the strobe off */
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buf[1] = lnb;
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ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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buf[1] |= FRIIO_CTL_CLK;
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ret += gl861_i2c_xfer(&adap->dev->i2c_adap, &msg, 1);
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return (ret == 70);
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}
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static int friio_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff);
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/* TODO: move these init cmds to the FE's init routine? */
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static u8 streaming_init_cmds[][2] = {
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{0x33, 0x08},
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{0x37, 0x40},
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{0x3A, 0x1F},
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{0x3B, 0xFF},
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{0x3C, 0x1F},
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{0x3D, 0xFF},
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{0x38, 0x00},
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{0x35, 0x00},
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{0x39, 0x00},
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{0x36, 0x00},
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};
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static int cmdlen = sizeof(streaming_init_cmds) / 2;
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/*
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* Command sequence in this init function is a replay
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* of the captured USB commands from the Windows proprietary driver.
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*/
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static int friio_initialize(struct dvb_usb_device *d)
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{
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int ret;
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int i;
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int retry = 0;
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u8 rbuf[2];
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u8 wbuf[3];
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deb_info("%s called.\n", __func__);
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/* use gl861_i2c_msg instead of gl861_i2c_xfer(), */
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/* because the i2c device is not set up yet. */
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wbuf[0] = 0x11;
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wbuf[1] = 0x02;
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ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
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if (ret < 0)
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goto error;
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msleep(2);
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wbuf[0] = 0x11;
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wbuf[1] = 0x00;
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ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
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if (ret < 0)
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goto error;
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msleep(1);
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/* following msgs should be in the FE's init code? */
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/* cmd sequence to identify the device type? (friio black/white) */
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wbuf[0] = 0x03;
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wbuf[1] = 0x80;
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/* can't use gl861_i2c_cmd, as the register-addr is 16bit(0x0100) */
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ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
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GL861_REQ_I2C_DATA_CTRL_WRITE, GL861_WRITE,
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0x1200, 0x0100, wbuf, 2, 2000);
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if (ret < 0)
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goto error;
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msleep(2);
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wbuf[0] = 0x00;
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wbuf[2] = 0x01; /* reg.0x0100 */
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wbuf[1] = 0x00;
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ret = gl861_i2c_msg(d, 0x12 >> 1, wbuf, 3, rbuf, 2);
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/* my Friio White returns 0xffff. */
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if (ret < 0 || rbuf[0] != 0xff || rbuf[1] != 0xff)
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goto error;
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msleep(2);
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wbuf[0] = 0x03;
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wbuf[1] = 0x80;
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ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
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GL861_REQ_I2C_DATA_CTRL_WRITE, GL861_WRITE,
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0x9000, 0x0100, wbuf, 2, 2000);
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if (ret < 0)
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goto error;
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msleep(2);
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wbuf[0] = 0x00;
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wbuf[2] = 0x01; /* reg.0x0100 */
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wbuf[1] = 0x00;
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ret = gl861_i2c_msg(d, 0x90 >> 1, wbuf, 3, rbuf, 2);
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/* my Friio White returns 0xffff again. */
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if (ret < 0 || rbuf[0] != 0xff || rbuf[1] != 0xff)
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goto error;
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msleep(1);
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restart:
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/* ============ start DEMOD init cmds ================== */
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/* read PLL status to clear the POR bit */
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wbuf[0] = JDVBT90502_2ND_I2C_REG;
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wbuf[1] = (FRIIO_PLL_ADDR << 1) + 1; /* +1 for reading */
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ret = gl861_i2c_msg(d, FRIIO_DEMOD_ADDR, wbuf, 2, NULL, 0);
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if (ret < 0)
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goto error;
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msleep(5);
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/* note: DEMODULATOR has 16bit register-address. */
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wbuf[0] = 0x00;
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wbuf[2] = 0x01; /* reg addr: 0x0100 */
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wbuf[1] = 0x00; /* val: not used */
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ret = gl861_i2c_msg(d, FRIIO_DEMOD_ADDR, wbuf, 3, rbuf, 1);
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if (ret < 0)
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goto error;
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/*
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msleep(1);
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wbuf[0] = 0x80;
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wbuf[1] = 0x00;
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ret = gl861_i2c_msg(d, FRIIO_DEMOD_ADDR, wbuf, 2, rbuf, 1);
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if (ret < 0)
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goto error;
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*/
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if (rbuf[0] & 0x80) { /* still in PowerOnReset state? */
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if (++retry > 3) {
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deb_info("failed to get the correct"
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" FE demod status:0x%02x\n", rbuf[0]);
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goto error;
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}
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msleep(100);
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goto restart;
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}
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/* TODO: check return value in rbuf */
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/* =========== end DEMOD init cmds ===================== */
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msleep(1);
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wbuf[0] = 0x30;
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wbuf[1] = 0x04;
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ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
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if (ret < 0)
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goto error;
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msleep(2);
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/* following 2 cmds unnecessary? */
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wbuf[0] = 0x00;
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wbuf[1] = 0x01;
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ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
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if (ret < 0)
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goto error;
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wbuf[0] = 0x06;
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wbuf[1] = 0x0F;
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ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
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if (ret < 0)
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goto error;
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/* some streaming ctl cmds (maybe) */
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msleep(10);
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for (i = 0; i < cmdlen; i++) {
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|
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:
|
||
|
|
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 = jdvbt90502_attach(adap->dev);
|
||
|
|
if (adap->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. */
|
||
|
|
{
|
||
|
|
.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 stuff */
|
||
|
|
static int __init friio_module_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = usb_register(&friio_driver);
|
||
|
|
if (ret)
|
||
|
|
err("usb_register failed. Error number %d", ret);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static void __exit friio_module_exit(void)
|
||
|
|
{
|
||
|
|
/* deregister this driver from the USB subsystem */
|
||
|
|
usb_deregister(&friio_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(friio_module_init);
|
||
|
|
module_exit(friio_module_exit);
|
||
|
|
|
||
|
|
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");
|