[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>
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
new file mode 100644
index 0000000..9f0a8d9
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
@@ -0,0 +1,118 @@
+/* dvb-usb-i2c.c is part of the DVB USB library.
+ *
+ * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
+ * see dvb-usb-init.c for copyright information.
+ *
+ * This file contains functions for (de-)initializing an I2C adapter.
+ */
+#include "dvb-usb-common.h"
+
+int dvb_usb_i2c_init(struct dvb_usb_device *d)
+{
+ int ret = 0;
+
+ if (!(d->props.caps & DVB_USB_IS_AN_I2C_ADAPTER))
+ return 0;
+
+ if (d->props.i2c_algo == NULL) {
+ err("no i2c algorithm specified");
+ return -EINVAL;
+ }
+
+ strncpy(d->i2c_adap.name,d->desc->name,I2C_NAME_SIZE);
+#ifdef I2C_ADAP_CLASS_TV_DIGITAL
+ d->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL,
+#else
+ d->i2c_adap.class = I2C_CLASS_TV_DIGITAL,
+#endif
+ d->i2c_adap.algo = d->props.i2c_algo;
+ d->i2c_adap.algo_data = NULL;
+ d->i2c_adap.id = I2C_ALGO_BIT;
+
+ i2c_set_adapdata(&d->i2c_adap, d);
+
+ if ((ret = i2c_add_adapter(&d->i2c_adap)) < 0)
+ err("could not add i2c adapter");
+
+ d->state |= DVB_USB_STATE_I2C;
+
+ return ret;
+}
+
+int dvb_usb_i2c_exit(struct dvb_usb_device *d)
+{
+ if (d->state & DVB_USB_STATE_I2C)
+ i2c_del_adapter(&d->i2c_adap);
+ d->state &= ~DVB_USB_STATE_I2C;
+ return 0;
+}
+
+int dvb_usb_pll_init_i2c(struct dvb_frontend *fe)
+{
+ struct dvb_usb_device *d = fe->dvb->priv;
+ struct i2c_msg msg = { .addr = d->pll_addr, .flags = 0, .buf = d->pll_init, .len = 4 };
+ int ret = 0;
+
+ /* if there is nothing to initialize */
+ if (d->pll_init[0] == 0x00 && d->pll_init[1] == 0x00 &&
+ d->pll_init[2] == 0x00 && d->pll_init[3] == 0x00)
+ return 0;
+
+ if (d->tuner_pass_ctrl)
+ d->tuner_pass_ctrl(fe,1,d->pll_addr);
+
+ deb_pll("pll init: %x\n",d->pll_addr);
+ deb_pll("pll-buf: %x %x %x %x\n",d->pll_init[0],d->pll_init[1],
+ d->pll_init[2],d->pll_init[3]);
+
+ if (i2c_transfer (&d->i2c_adap, &msg, 1) != 1) {
+ err("tuner i2c write failed for pll_init.");
+ ret = -EREMOTEIO;
+ }
+ msleep(1);
+
+ if (d->tuner_pass_ctrl)
+ d->tuner_pass_ctrl(fe,0,d->pll_addr);
+ return ret;
+}
+EXPORT_SYMBOL(dvb_usb_pll_init_i2c);
+
+int dvb_usb_pll_set(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep, u8 b[5])
+{
+ struct dvb_usb_device *d = fe->dvb->priv;
+
+ deb_pll("pll addr: %x, freq: %d %p\n",d->pll_addr,fep->frequency,d->pll_desc);
+
+ b[0] = d->pll_addr << 1;
+ dvb_pll_configure(d->pll_desc,&b[1],fep->frequency,fep->u.ofdm.bandwidth);
+
+ deb_pll("pll-buf: %x %x %x %x %x\n",b[0],b[1],b[2],b[3],b[4]);
+
+ return 0;
+}
+EXPORT_SYMBOL(dvb_usb_pll_set);
+
+int dvb_usb_pll_set_i2c(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
+{
+ struct dvb_usb_device *d = fe->dvb->priv;
+ int ret = 0;
+ u8 b[5];
+ struct i2c_msg msg = { .addr = d->pll_addr, .flags = 0, .buf = &b[1], .len = 4 };
+
+ dvb_usb_pll_set(fe,fep,b);
+
+ if (d->tuner_pass_ctrl)
+ d->tuner_pass_ctrl(fe,1,d->pll_addr);
+
+ if (i2c_transfer (&d->i2c_adap, &msg, 1) != 1) {
+ err("tuner i2c write failed for pll_set.");
+ ret = -EREMOTEIO;
+ }
+ msleep(1);
+
+ if (d->tuner_pass_ctrl)
+ d->tuner_pass_ctrl(fe,0,d->pll_addr);
+
+ return ret;
+}
+EXPORT_SYMBOL(dvb_usb_pll_set_i2c);