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path: root/drivers/media/usb/dvb-usb-v2
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Diffstat (limited to 'drivers/media/usb/dvb-usb-v2')
-rw-r--r--drivers/media/usb/dvb-usb-v2/af9015.c3
-rw-r--r--drivers/media/usb/dvb-usb-v2/af9035.c29
-rw-r--r--drivers/media/usb/dvb-usb-v2/mxl111sf.c10
-rw-r--r--drivers/media/usb/dvb-usb-v2/rtl28xxu.c42
-rw-r--r--drivers/media/usb/dvb-usb-v2/rtl28xxu.h1
5 files changed, 80 insertions, 5 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/af9015.c b/drivers/media/usb/dvb-usb-v2/af9015.c
index d556042cf312..da47d2392f2a 100644
--- a/drivers/media/usb/dvb-usb-v2/af9015.c
+++ b/drivers/media/usb/dvb-usb-v2/af9015.c
@@ -397,12 +397,13 @@ error:
return ret;
}
+#define AF9015_EEPROM_SIZE 256
+
/* hash (and dump) eeprom */
static int af9015_eeprom_hash(struct dvb_usb_device *d)
{
struct af9015_state *state = d_to_priv(d);
int ret, i;
- static const unsigned int AF9015_EEPROM_SIZE = 256;
u8 buf[AF9015_EEPROM_SIZE];
struct req_t req = {READ_I2C, AF9015_I2C_EEPROM, 0, 0, 1, 1, NULL};
diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 1ea17dc2a76e..c8fcd78425bd 100644
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -21,6 +21,9 @@
#include "af9035.h"
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE 64
+
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static u16 af9035_checksum(const u8 *buf, size_t len)
@@ -126,10 +129,16 @@ exit:
/* write multiple registers */
static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
{
- u8 wbuf[6 + len];
+ u8 wbuf[MAX_XFER_SIZE];
u8 mbox = (reg >> 16) & 0xff;
struct usb_req req = { CMD_MEM_WR, mbox, sizeof(wbuf), wbuf, 0, NULL };
+ if (6 + len > sizeof(wbuf)) {
+ dev_warn(&d->udev->dev, "%s: i2c wr: len=%d is too big!\n",
+ KBUILD_MODNAME, len);
+ return -EOPNOTSUPP;
+ }
+
wbuf[0] = len;
wbuf[1] = 2;
wbuf[2] = 0;
@@ -228,9 +237,16 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
msg[1].len);
} else {
/* I2C */
- u8 buf[5 + msg[0].len];
+ u8 buf[MAX_XFER_SIZE];
struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
buf, msg[1].len, msg[1].buf };
+
+ if (5 + msg[0].len > sizeof(buf)) {
+ dev_warn(&d->udev->dev,
+ "%s: i2c xfer: len=%d is too big!\n",
+ KBUILD_MODNAME, msg[0].len);
+ return -EOPNOTSUPP;
+ }
req.mbox |= ((msg[0].addr & 0x80) >> 3);
buf[0] = msg[1].len;
buf[1] = msg[0].addr << 1;
@@ -257,9 +273,16 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
msg[0].len - 3);
} else {
/* I2C */
- u8 buf[5 + msg[0].len];
+ u8 buf[MAX_XFER_SIZE];
struct usb_req req = { CMD_I2C_WR, 0, sizeof(buf), buf,
0, NULL };
+
+ if (5 + msg[0].len > sizeof(buf)) {
+ dev_warn(&d->udev->dev,
+ "%s: i2c xfer: len=%d is too big!\n",
+ KBUILD_MODNAME, msg[0].len);
+ return -EOPNOTSUPP;
+ }
req.mbox |= ((msg[0].addr & 0x80) >> 3);
buf[0] = msg[0].len;
buf[1] = msg[0].addr << 1;
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.c b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
index e97964ef7f56..2627553f7de1 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
@@ -23,6 +23,9 @@
#include "lgdt3305.h"
#include "lg2160.h"
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE 64
+
int dvb_usb_mxl111sf_debug;
module_param_named(debug, dvb_usb_mxl111sf_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level "
@@ -57,7 +60,12 @@ int mxl111sf_ctrl_msg(struct dvb_usb_device *d,
{
int wo = (rbuf == NULL || rlen == 0); /* write-only */
int ret;
- u8 sndbuf[1+wlen];
+ u8 sndbuf[MAX_XFER_SIZE];
+
+ if (1 + wlen > sizeof(sndbuf)) {
+ pr_warn("%s: len=%d is too big!\n", __func__, wlen);
+ return -EOPNOTSUPP;
+ }
pr_debug("%s(wlen = %d, rlen = %d)\n", __func__, wlen, rlen);
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index c0cd0848631b..ecca03667f98 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -377,6 +377,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
+ struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
dev_dbg(&d->udev->dev, "%s:\n", __func__);
@@ -489,6 +490,15 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
goto found;
}
+ /* check R828D ID register; reg=00 val=69 */
+ ret = rtl28xxu_ctrl_msg(d, &req_r828d);
+ if (ret == 0 && buf[0] == 0x69) {
+ priv->tuner = TUNER_RTL2832_R828D;
+ priv->tuner_name = "R828D";
+ goto found;
+ }
+
+
found:
dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
@@ -745,6 +755,7 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
rtl2832_config = &rtl28xxu_rtl2832_e4000_config;
break;
case TUNER_RTL2832_R820T:
+ case TUNER_RTL2832_R828D:
rtl2832_config = &rtl28xxu_rtl2832_r820t_config;
break;
default:
@@ -866,6 +877,13 @@ static const struct r820t_config rtl2832u_r820t_config = {
.rafael_chip = CHIP_R820T,
};
+static const struct r820t_config rtl2832u_r828d_config = {
+ .i2c_addr = 0x3a,
+ .xtal = 16000000,
+ .max_i2c_msg_len = 2,
+ .rafael_chip = CHIP_R828D,
+};
+
static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
{
int ret;
@@ -923,6 +941,27 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
adap->fe[0]->ops.read_signal_strength =
adap->fe[0]->ops.tuner_ops.get_rf_strength;
break;
+ case TUNER_RTL2832_R828D:
+ /* power off mn88472 demod on GPIO0 */
+ ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
+ if (ret)
+ goto err;
+
+ ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
+ if (ret)
+ goto err;
+
+ ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
+ if (ret)
+ goto err;
+
+ fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
+ &rtl2832u_r828d_config);
+
+ /* Use tuner to get the signal strength */
+ adap->fe[0]->ops.read_signal_strength =
+ adap->fe[0]->ops.tuner_ops.get_rf_strength;
+ break;
default:
fe = NULL;
dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
@@ -1388,6 +1427,9 @@ static const struct usb_device_id rtl28xxu_id_table[] = {
&rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) },
{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
&rtl2832u_props, "Crypto ReDi PC 50 A", NULL) },
+
+ { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
+ &rtl2832u_props, "Astrometa DVB-T2", NULL) },
{ }
};
MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
index 729b3540c2f9..2142bcb41b41 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
@@ -83,6 +83,7 @@ enum rtl28xxu_tuner {
TUNER_RTL2832_TDA18272,
TUNER_RTL2832_FC0013,
TUNER_RTL2832_R820T,
+ TUNER_RTL2832_R828D,
};
struct rtl28xxu_req {
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-26 09:39:25 +0000