[PATCH] dvb: Add generalized dvb-usb driver

Add generalized dvb-usb driver which supports a wide variety of devices.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 272 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/dibusb-common.c b/drivers/media/dvb/dvb-usb/dibusb-common.c
new file mode 100644
index 000000000000..63b626f70c81
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/dibusb-common.c
@@ -0,0 +1,272 @@
+/* Common methods for dibusb-based-receivers.
+ *
+ * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
+ *
+ *	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 "dibusb.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info (|-able))." DVB_USB_DEBUG_STATUS);
+MODULE_LICENSE("GPL");
+
+#define deb_info(args...) dprintk(debug,0x01,args)
+
+/* common stuff used by the different dibusb modules */
+int dibusb_streaming_ctrl(struct dvb_usb_device *d, int onoff)
+{
+	if (d->priv != NULL) {
+		struct dib_fe_xfer_ops *ops = d->priv;
+		if (ops->fifo_ctrl != NULL)
+			if (ops->fifo_ctrl(d->fe,onoff)) {
+				err("error while controlling the fifo of the demod.");
+				return -ENODEV;
+			}
+	}
+	return 0;
+}
+EXPORT_SYMBOL(dibusb_streaming_ctrl);
+
+int dibusb_pid_filter(struct dvb_usb_device *d, int index, u16 pid, int onoff)
+{
+	if (d->priv != NULL) {
+		struct dib_fe_xfer_ops *ops = d->priv;
+		if (d->pid_filtering && ops->pid_ctrl != NULL)
+			ops->pid_ctrl(d->fe,index,pid,onoff);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(dibusb_pid_filter);
+
+int dibusb_pid_filter_ctrl(struct dvb_usb_device *d, int onoff)
+{
+	if (d->priv != NULL) {
+		struct dib_fe_xfer_ops *ops = d->priv;
+		if (ops->pid_parse != NULL)
+			if (ops->pid_parse(d->fe,onoff) < 0)
+				err("could not handle pid_parser");
+	}
+	return 0;
+}
+EXPORT_SYMBOL(dibusb_pid_filter_ctrl);
+
+int dibusb_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+	u8 b[3];
+	int ret;
+	b[0] = DIBUSB_REQ_SET_IOCTL;
+	b[1] = DIBUSB_IOCTL_CMD_POWER_MODE;
+	b[2] = onoff ? DIBUSB_IOCTL_POWER_WAKEUP : DIBUSB_IOCTL_POWER_SLEEP;
+	ret = dvb_usb_generic_write(d,b,3);
+	msleep(10);
+	return ret;
+}
+EXPORT_SYMBOL(dibusb_power_ctrl);
+
+int dibusb2_0_streaming_ctrl(struct dvb_usb_device *d, int onoff)
+{
+	u8 b[2];
+	b[0] = DIBUSB_REQ_SET_IOCTL;
+	b[1] = onoff ? DIBUSB_IOCTL_CMD_ENABLE_STREAM : DIBUSB_IOCTL_CMD_DISABLE_STREAM;
+
+	dvb_usb_generic_write(d,b,3);
+
+	return dibusb_streaming_ctrl(d,onoff);
+}
+EXPORT_SYMBOL(dibusb2_0_streaming_ctrl);
+
+int dibusb2_0_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+	if (onoff) {
+		u8 b[3] = { DIBUSB_REQ_SET_IOCTL, DIBUSB_IOCTL_CMD_POWER_MODE, DIBUSB_IOCTL_POWER_WAKEUP };
+		return dvb_usb_generic_write(d,b,3);
+	} else
+		return 0;
+}
+EXPORT_SYMBOL(dibusb2_0_power_ctrl);
+
+static int dibusb_i2c_msg(struct dvb_usb_device *d, u8 addr,
+			  u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	u8 sndbuf[wlen+4]; /* lead(1) devaddr,direction(1) addr(2) data(wlen) (len(2) (when reading)) */
+	/* write only ? */
+	int wo = (rbuf == NULL || rlen == 0),
+		len = 2 + wlen + (wo ? 0 : 2);
+
+	sndbuf[0] = wo ? DIBUSB_REQ_I2C_WRITE : DIBUSB_REQ_I2C_READ;
+	sndbuf[1] = (addr << 1) | (wo ? 0 : 1);
+
+	memcpy(&sndbuf[2],wbuf,wlen);
+
+	if (!wo) {
+		sndbuf[wlen+2] = (rlen >> 8) & 0xff;
+		sndbuf[wlen+3] = rlen & 0xff;
+	}
+
+	return dvb_usb_generic_rw(d,sndbuf,len,rbuf,rlen,0);
+}
+
+/*
+ * I2C master xfer function
+ */
+static int dibusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	int i;
+
+	if (down_interruptible(&d->i2c_sem) < 0)
+		return -EAGAIN;
+
+	if (num > 2)
+		warn("more than 2 i2c messages at a time is not handled yet. TODO.");
+
+	for (i = 0; i < num; i++) {
+		/* write/read request */
+		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+			if (dibusb_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 (dibusb_i2c_msg(d, msg[i].addr, msg[i].buf,msg[i].len,NULL,0) < 0)
+				break;
+	}
+
+	up(&d->i2c_sem);
+	return i;
+}
+
+static u32 dibusb_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+struct i2c_algorithm dibusb_i2c_algo = {
+	.name          = "DiBcom USB I2C algorithm",
+	.id            = I2C_ALGO_BIT,
+	.master_xfer   = dibusb_i2c_xfer,
+	.functionality = dibusb_i2c_func,
+};
+EXPORT_SYMBOL(dibusb_i2c_algo);
+
+int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val)
+{
+	u8 wbuf[1] = { offs };
+	return dibusb_i2c_msg(d, 0x50, wbuf, 1, val, 1);
+}
+EXPORT_SYMBOL(dibusb_read_eeprom_byte);
+
+int dibusb_dib3000mc_frontend_attach(struct dvb_usb_device *d)
+{
+	struct dib3000_config demod_cfg;
+	struct dibusb_state *st = d->priv;
+
+	demod_cfg.pll_set = dvb_usb_pll_set_i2c;
+	demod_cfg.pll_init = dvb_usb_pll_init_i2c;
+
+	for (demod_cfg.demod_address = 0x8; demod_cfg.demod_address < 0xd; demod_cfg.demod_address++)
+		if ((d->fe = dib3000mc_attach(&demod_cfg,&d->i2c_adap,&st->ops)) != NULL) {
+			d->tuner_pass_ctrl = st->ops.tuner_pass_ctrl;
+			return 0;
+		}
+
+	return -ENODEV;
+}
+EXPORT_SYMBOL(dibusb_dib3000mc_frontend_attach);
+
+int dibusb_dib3000mc_tuner_attach (struct dvb_usb_device *d)
+{
+	d->pll_addr = 0x60;
+	d->pll_desc = &dvb_pll_env57h1xd5;
+	return 0;
+}
+EXPORT_SYMBOL(dibusb_dib3000mc_tuner_attach);
+
+/*
+ * common remote control stuff
+ */
+struct dvb_usb_rc_key dibusb_rc_keys[] = {
+	/* Key codes for the little Artec T1/Twinhan/HAMA/ remote. */
+	{ 0x00, 0x16, KEY_POWER },
+	{ 0x00, 0x10, KEY_MUTE },
+	{ 0x00, 0x03, KEY_1 },
+	{ 0x00, 0x01, KEY_2 },
+	{ 0x00, 0x06, KEY_3 },
+	{ 0x00, 0x09, KEY_4 },
+	{ 0x00, 0x1d, KEY_5 },
+	{ 0x00, 0x1f, KEY_6 },
+	{ 0x00, 0x0d, KEY_7 },
+	{ 0x00, 0x19, KEY_8 },
+	{ 0x00, 0x1b, KEY_9 },
+	{ 0x00, 0x15, KEY_0 },
+	{ 0x00, 0x05, KEY_CHANNELUP },
+	{ 0x00, 0x02, KEY_CHANNELDOWN },
+	{ 0x00, 0x1e, KEY_VOLUMEUP },
+	{ 0x00, 0x0a, KEY_VOLUMEDOWN },
+	{ 0x00, 0x11, KEY_RECORD },
+	{ 0x00, 0x17, KEY_FAVORITES }, /* Heart symbol - Channel list. */
+	{ 0x00, 0x14, KEY_PLAY },
+	{ 0x00, 0x1a, KEY_STOP },
+	{ 0x00, 0x40, KEY_REWIND },
+	{ 0x00, 0x12, KEY_FASTFORWARD },
+	{ 0x00, 0x0e, KEY_PREVIOUS }, /* Recall - Previous channel. */
+	{ 0x00, 0x4c, KEY_PAUSE },
+	{ 0x00, 0x4d, KEY_SCREEN }, /* Full screen mode. */
+	{ 0x00, 0x54, KEY_AUDIO }, /* MTS - Switch to secondary audio. */
+	/* additional keys TwinHan VisionPlus, the Artec seemingly not have */
+	{ 0x00, 0x0c, KEY_CANCEL }, /* Cancel */
+	{ 0x00, 0x1c, KEY_EPG }, /* EPG */
+	{ 0x00, 0x00, KEY_TAB }, /* Tab */
+	{ 0x00, 0x48, KEY_INFO }, /* Preview */
+	{ 0x00, 0x04, KEY_LIST }, /* RecordList */
+	{ 0x00, 0x0f, KEY_TEXT }, /* Teletext */
+	/* Key codes for the KWorld/ADSTech/JetWay remote. */
+	{ 0x86, 0x12, KEY_POWER },
+	{ 0x86, 0x0f, KEY_SELECT }, /* source */
+	{ 0x86, 0x0c, KEY_UNKNOWN }, /* scan */
+	{ 0x86, 0x0b, KEY_EPG },
+	{ 0x86, 0x10, KEY_MUTE },
+	{ 0x86, 0x01, KEY_1 },
+	{ 0x86, 0x02, KEY_2 },
+	{ 0x86, 0x03, KEY_3 },
+	{ 0x86, 0x04, KEY_4 },
+	{ 0x86, 0x05, KEY_5 },
+	{ 0x86, 0x06, KEY_6 },
+	{ 0x86, 0x07, KEY_7 },
+	{ 0x86, 0x08, KEY_8 },
+	{ 0x86, 0x09, KEY_9 },
+	{ 0x86, 0x0a, KEY_0 },
+	{ 0x86, 0x18, KEY_ZOOM },
+	{ 0x86, 0x1c, KEY_UNKNOWN }, /* preview */
+	{ 0x86, 0x13, KEY_UNKNOWN }, /* snap */
+	{ 0x86, 0x00, KEY_UNDO },
+	{ 0x86, 0x1d, KEY_RECORD },
+	{ 0x86, 0x0d, KEY_STOP },
+	{ 0x86, 0x0e, KEY_PAUSE },
+	{ 0x86, 0x16, KEY_PLAY },
+	{ 0x86, 0x11, KEY_BACK },
+	{ 0x86, 0x19, KEY_FORWARD },
+	{ 0x86, 0x14, KEY_UNKNOWN }, /* pip */
+	{ 0x86, 0x15, KEY_ESC },
+	{ 0x86, 0x1a, KEY_UP },
+	{ 0x86, 0x1e, KEY_DOWN },
+	{ 0x86, 0x1f, KEY_LEFT },
+	{ 0x86, 0x1b, KEY_RIGHT },
+};
+EXPORT_SYMBOL(dibusb_rc_keys);
+
+int dibusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+{
+	u8 key[5],cmd = DIBUSB_REQ_POLL_REMOTE;
+	dvb_usb_generic_rw(d,&cmd,1,key,5,0);
+	dvb_usb_nec_rc_key_to_event(d,key,event,state);
+	if (key[0] != 0)
+		deb_info("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]);
+	return 0;
+}
+EXPORT_SYMBOL(dibusb_rc_query);