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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/media/usb/dvb-usb-v2/gl861.c
Initial import
Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/gl861.c')
-rw-r--r--drivers/media/usb/dvb-usb-v2/gl861.c177
1 files changed, 177 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/gl861.c b/drivers/media/usb/dvb-usb-v2/gl861.c
new file mode 100644
index 000000000..b1b09c547
--- /dev/null
+++ b/drivers/media/usb/dvb-usb-v2/gl861.c
@@ -0,0 +1,177 @@
+/* DVB USB compliant linux driver for GL861 USB2.0 devices.
+ *
+ * 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 "gl861.h"
+
+#include "zl10353.h"
+#include "qt1010.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+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;
+
+ if (wo) {
+ req = GL861_REQ_I2C_WRITE;
+ type = GL861_WRITE;
+ } else { /* rw */
+ req = GL861_REQ_I2C_READ;
+ type = GL861_READ;
+ }
+
+ switch (wlen) {
+ case 1:
+ index = wbuf[0];
+ break;
+ case 2:
+ index = wbuf[0];
+ value = value + wbuf[1];
+ break;
+ default:
+ dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
+ KBUILD_MODNAME, wlen);
+ return -EINVAL;
+ }
+
+ msleep(1); /* avoid I2C errors */
+
+ return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), 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 struct i2c_algorithm gl861_i2c_algo = {
+ .master_xfer = gl861_i2c_xfer,
+ .functionality = gl861_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static struct zl10353_config gl861_zl10353_config = {
+ .demod_address = 0x0f,
+ .no_tuner = 1,
+ .parallel_ts = 1,
+};
+
+static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
+{
+
+ adap->fe[0] = dvb_attach(zl10353_attach, &gl861_zl10353_config,
+ &adap_to_d(adap)->i2c_adap);
+ if (adap->fe[0] == NULL)
+ return -EIO;
+
+ return 0;
+}
+
+static struct qt1010_config gl861_qt1010_config = {
+ .i2c_address = 0x62
+};
+
+static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ return dvb_attach(qt1010_attach,
+ adap->fe[0], &adap_to_d(adap)->i2c_adap,
+ &gl861_qt1010_config) == NULL ? -ENODEV : 0;
+}
+
+static int gl861_init(struct dvb_usb_device *d)
+{
+ /*
+ * There is 2 interfaces. Interface 0 is for TV and interface 1 is
+ * for HID remote controller. Interface 0 has 2 alternate settings.
+ * For some reason we need to set interface explicitly, defaulted
+ * as alternate setting 1?
+ */
+ return usb_set_interface(d->udev, 0, 0);
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties gl861_props = {
+ .driver_name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ .adapter_nr = adapter_nr,
+
+ .i2c_algo = &gl861_i2c_algo,
+ .frontend_attach = gl861_frontend_attach,
+ .tuner_attach = gl861_tuner_attach,
+ .init = gl861_init,
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .stream = DVB_USB_STREAM_BULK(0x81, 7, 512),
+ }
+ }
+};
+
+static const struct usb_device_id gl861_id_table[] = {
+ { DVB_USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801,
+ &gl861_props, "MSI Mega Sky 55801 DVB-T USB2.0", NULL) },
+ { DVB_USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU,
+ &gl861_props, "A-LINK DTU DVB-T USB2.0", NULL) },
+ { }
+};
+MODULE_DEVICE_TABLE(usb, gl861_id_table);
+
+static struct usb_driver gl861_usb_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = gl861_id_table,
+ .probe = dvb_usbv2_probe,
+ .disconnect = dvb_usbv2_disconnect,
+ .suspend = dvb_usbv2_suspend,
+ .resume = dvb_usbv2_resume,
+ .reset_resume = dvb_usbv2_reset_resume,
+ .no_dynamic_id = 1,
+ .soft_unbind = 1,
+};
+
+module_usb_driver(gl861_usb_driver);
+
+MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>");
+MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
+MODULE_VERSION("0.1");
+MODULE_LICENSE("GPL");