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path: root/drivers/media/usb/dvb-usb-v2/af9015.c
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Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/af9015.c')
-rw-r--r--drivers/media/usb/dvb-usb-v2/af9015.c79
1 files changed, 60 insertions, 19 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/af9015.c b/drivers/media/usb/dvb-usb-v2/af9015.c
index b86d0f27a39..d556042cf31 100644
--- a/drivers/media/usb/dvb-usb-v2/af9015.c
+++ b/drivers/media/usb/dvb-usb-v2/af9015.c
@@ -30,22 +30,22 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static int af9015_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
{
-#define BUF_LEN 63
#define REQ_HDR_LEN 8 /* send header size */
#define ACK_HDR_LEN 2 /* rece header size */
struct af9015_state *state = d_to_priv(d);
int ret, wlen, rlen;
- u8 buf[BUF_LEN];
u8 write = 1;
- buf[0] = req->cmd;
- buf[1] = state->seq++;
- buf[2] = req->i2c_addr;
- buf[3] = req->addr >> 8;
- buf[4] = req->addr & 0xff;
- buf[5] = req->mbox;
- buf[6] = req->addr_len;
- buf[7] = req->data_len;
+ mutex_lock(&d->usb_mutex);
+
+ state->buf[0] = req->cmd;
+ state->buf[1] = state->seq++;
+ state->buf[2] = req->i2c_addr;
+ state->buf[3] = req->addr >> 8;
+ state->buf[4] = req->addr & 0xff;
+ state->buf[5] = req->mbox;
+ state->buf[6] = req->addr_len;
+ state->buf[7] = req->data_len;
switch (req->cmd) {
case GET_CONFIG:
@@ -55,14 +55,14 @@ static int af9015_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
break;
case READ_I2C:
write = 0;
- buf[2] |= 0x01; /* set I2C direction */
+ state->buf[2] |= 0x01; /* set I2C direction */
case WRITE_I2C:
- buf[0] = READ_WRITE_I2C;
+ state->buf[0] = READ_WRITE_I2C;
break;
case WRITE_MEMORY:
if (((req->addr & 0xff00) == 0xff00) ||
((req->addr & 0xff00) == 0xae00))
- buf[0] = WRITE_VIRTUAL_MEMORY;
+ state->buf[0] = WRITE_VIRTUAL_MEMORY;
case WRITE_VIRTUAL_MEMORY:
case COPY_FIRMWARE:
case DOWNLOAD_FIRMWARE:
@@ -90,7 +90,7 @@ static int af9015_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
rlen = ACK_HDR_LEN;
if (write) {
wlen += req->data_len;
- memcpy(&buf[REQ_HDR_LEN], req->data, req->data_len);
+ memcpy(&state->buf[REQ_HDR_LEN], req->data, req->data_len);
} else {
rlen += req->data_len;
}
@@ -99,22 +99,25 @@ static int af9015_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
if (req->cmd == DOWNLOAD_FIRMWARE || req->cmd == RECONNECT_USB)
rlen = 0;
- ret = dvb_usbv2_generic_rw(d, buf, wlen, buf, rlen);
+ ret = dvb_usbv2_generic_rw_locked(d,
+ state->buf, wlen, state->buf, rlen);
if (ret)
goto error;
/* check status */
- if (rlen && buf[1]) {
+ if (rlen && state->buf[1]) {
dev_err(&d->udev->dev, "%s: command failed=%d\n",
- KBUILD_MODNAME, buf[1]);
+ KBUILD_MODNAME, state->buf[1]);
ret = -EIO;
goto error;
}
/* read request, copy returned data to return buf */
if (!write)
- memcpy(req->data, &buf[ACK_HDR_LEN], req->data_len);
+ memcpy(req->data, &state->buf[ACK_HDR_LEN], req->data_len);
error:
+ mutex_unlock(&d->usb_mutex);
+
return ret;
}
@@ -1317,6 +1320,43 @@ static int af9015_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
#define af9015_get_rc_config NULL
#endif
+static int af9015_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ char manufacturer[sizeof("ITE Technologies, Inc.")];
+
+ memset(manufacturer, 0, sizeof(manufacturer));
+ usb_string(udev, udev->descriptor.iManufacturer,
+ manufacturer, sizeof(manufacturer));
+ /*
+ * There is two devices having same ID but different chipset. One uses
+ * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
+ * is iManufacturer string.
+ *
+ * idVendor 0x0ccd TerraTec Electronic GmbH
+ * idProduct 0x0099
+ * bcdDevice 2.00
+ * iManufacturer 1 Afatech
+ * iProduct 2 DVB-T 2
+ *
+ * idVendor 0x0ccd TerraTec Electronic GmbH
+ * idProduct 0x0099
+ * bcdDevice 2.00
+ * iManufacturer 1 ITE Technologies, Inc.
+ * iProduct 2 DVB-T TV Stick
+ */
+ if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
+ (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
+ if (!strcmp("ITE Technologies, Inc.", manufacturer)) {
+ dev_dbg(&udev->dev, "%s: rejecting device\n", __func__);
+ return -ENODEV;
+ }
+ }
+
+ return dvb_usbv2_probe(intf, id);
+}
+
/* interface 0 is used by DVB-T receiver and
interface 1 is for remote controller (HID) */
static struct dvb_usb_device_properties af9015_props = {
@@ -1425,6 +1465,7 @@ static const struct usb_device_id af9015_id_table[] = {
&af9015_props, "AverMedia AVerTV Volar M (A815Mac)", NULL) },
{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_RC,
&af9015_props, "TerraTec Cinergy T Stick RC", RC_MAP_TERRATEC_SLIM_2) },
+ /* XXX: that same ID [0ccd:0099] is used by af9035 driver too */
{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_DUAL_RC,
&af9015_props, "TerraTec Cinergy T Stick Dual RC", RC_MAP_TERRATEC_SLIM) },
{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A850T,
@@ -1441,7 +1482,7 @@ MODULE_DEVICE_TABLE(usb, af9015_id_table);
static struct usb_driver af9015_usb_driver = {
.name = KBUILD_MODNAME,
.id_table = af9015_id_table,
- .probe = dvb_usbv2_probe,
+ .probe = af9015_probe,
.disconnect = dvb_usbv2_disconnect,
.suspend = dvb_usbv2_suspend,
.resume = dvb_usbv2_resume,