Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / usb / dvb-usb-v2 / gl861.c

diff --git a/kernel/drivers/media/usb/dvb-usb-v2/gl861.c b/kernel/drivers/media/usb/dvb-usb-v2/gl861.c
new file mode 100644 (file)
index 0000000..b1b09c5
--- /dev/null
+++ b/kernel/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");