--- /dev/null
+/* 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"
+
+/* debug */
+int dvb_usb_gl861_debug;
+module_param_named(debug,dvb_usb_gl861_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
+
+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;
+ 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:
+ warn("wlen = %x, aborting.", wlen);
+ return -EINVAL;
+ }
+
+ 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 (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ if (num > 2)
+ return -EINVAL;
+
+ 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 int gl861_identify_state(struct usb_device *udev,
+ struct dvb_usb_device_properties *props,
+ struct dvb_usb_device_description **desc,
+ int *cold)
+{
+ *cold = 0;
+
+ return 0;
+}
+
+static struct zl10353_config gl861_zl10353_config = {
+ .demod_address = 0x1e,
+ .no_tuner = 1,
+/*
+ .parallel_ts = 1,
+*/
+};
+
+static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ if ((adap->fe = dvb_attach(zl10353_attach, &gl861_zl10353_config,
+ &adap->dev->i2c_adap)) != NULL) {
+ return 0;
+ }
+
+ return -EIO;
+}
+
+static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ adap->pll_addr = 0xc4;
+ adap->pll_desc = NULL;
+ adap->fe->ops.tuner_ops.set_params = qt1010_set_params;
+
+ return 0;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties gl861_properties;
+
+static int gl861_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 < 2)
+ return -ENODEV;
+
+ if ((ret = dvb_usb_device_init(intf, &gl861_properties, THIS_MODULE,
+ &d)) == 0) {
+ alt = usb_altnum_to_altsetting(intf, 0);
+
+ if (alt == NULL) {
+ deb_rc("not alt found!\n");
+ return -ENODEV;
+ }
+
+ ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
+ alt->desc.bAlternateSetting);
+ }
+
+ return ret;
+}
+
+static struct usb_device_id gl861_table [] = {
+ { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY55801) },
+ {} /* Terminating entry */
+};
+MODULE_DEVICE_TABLE (usb, gl861_table);
+
+static struct dvb_usb_device_properties gl861_properties = {
+ .usb_ctrl = DEVICE_SPECIFIC,
+
+ .size_of_priv = 0,
+
+ .identify_state = gl861_identify_state,
+ .num_adapters = 1,
+ .adapter = {{
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+ .frontend_attach = gl861_frontend_attach,
+ .tuner_attach = gl861_tuner_attach,
+
+ .stream = {
+ .type = USB_BULK,
+ .count = 7,
+ .endpoint = 0x81,
+ .u = {
+ .bulk = {
+ .buffersize = 512,
+ }
+ }
+ },
+ }},
+ .i2c_algo = &gl861_i2c_algo,
+
+ .generic_bulk_ctrl_endpoint = 0x01,
+
+ .num_device_descs = 1,
+ .devices = {
+ { "MSI Mega Sky 55801 DVB-T USB2.0",
+ { &gl861_table[0], NULL },
+ { NULL },
+ },
+ { NULL },
+ }
+};
+
+static struct usb_driver gl861_driver = {
+ .name = "gl861",
+ .probe = gl861_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = gl861_table,
+};
+
+/* module stuff */
+static int __init gl861_module_init(void)
+{
+ int ret;
+
+ if ((ret = usb_register(&gl861_driver))) {
+ err("usb_register failed. Error number %d", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit gl861_module_exit(void)
+{
+ /* deregister this driver from the USB subsystem */
+ usb_deregister(&gl861_driver);
+}
+
+module_init (gl861_module_init);
+module_exit (gl861_module_exit);
+
+MODULE_AUTHOR("comabug@gmail.com");
+MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff