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path: root/drivers/media/usb/dvb-usb/m920x.c
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Diffstat (limited to 'drivers/media/usb/dvb-usb/m920x.c')
-rw-r--r--drivers/media/usb/dvb-usb/m920x.c95
1 files changed, 56 insertions, 39 deletions
diff --git a/drivers/media/usb/dvb-usb/m920x.c b/drivers/media/usb/dvb-usb/m920x.c
index 22554d9abd43..45337ba0a0a3 100644
--- a/drivers/media/usb/dvb-usb/m920x.c
+++ b/drivers/media/usb/dvb-usb/m920x.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
*
* Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
*
- * 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/media/dvb-drivers/dvb-usb.rst for more information
+ * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
*/
#include "m920x.h"
@@ -20,7 +17,7 @@
#include <media/tuner.h>
#include "tuner-simple.h"
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
/* debug */
static int dvb_usb_m920x_debug;
@@ -277,6 +274,12 @@ static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
/* Should check for ack here, if we knew how. */
}
if (msg[i].flags & I2C_M_RD) {
+ char *read = kmalloc(1, GFP_KERNEL);
+ if (!read) {
+ ret = -ENOMEM;
+ goto unlock;
+ }
+
for (j = 0; j < msg[i].len; j++) {
/* Last byte of transaction?
* Send STOP, otherwise send ACK. */
@@ -284,9 +287,14 @@ static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
if ((ret = m920x_read(d->udev, M9206_I2C, 0x0,
0x20 | stop,
- &msg[i].buf[j], 1)) != 0)
+ read, 1)) != 0) {
+ kfree(read);
goto unlock;
+ }
+ msg[i].buf[j] = read[0];
}
+
+ kfree(read);
} else {
for (j = 0; j < msg[i].len; j++) {
/* Last byte of transaction? Then send STOP. */
@@ -311,7 +319,7 @@ static u32 m920x_i2c_func(struct i2c_adapter *adapter)
return I2C_FUNC_I2C;
}
-static struct i2c_algorithm m920x_i2c_algo = {
+static const struct i2c_algorithm m920x_i2c_algo = {
.master_xfer = m920x_i2c_xfer,
.functionality = m920x_i2c_func,
};
@@ -462,8 +470,8 @@ static int m920x_firmware_download(struct usb_device *udev, const struct firmwar
/* Callbacks for DVB USB */
static int m920x_identify_state(struct usb_device *udev,
- struct dvb_usb_device_properties *props,
- struct dvb_usb_device_description **desc,
+ const struct dvb_usb_device_properties *props,
+ const struct dvb_usb_device_description **desc,
int *cold)
{
struct usb_host_interface *alt;
@@ -478,14 +486,14 @@ static int m920x_identify_state(struct usb_device *udev,
static int m920x_mt352_demod_init(struct dvb_frontend *fe)
{
int ret;
- u8 config[] = { CONFIG, 0x3d };
- u8 clock[] = { CLOCK_CTL, 0x30 };
- u8 reset[] = { RESET, 0x80 };
- u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
- u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
- u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
- u8 unk1[] = { 0x93, 0x1a };
- u8 unk2[] = { 0xb5, 0x7a };
+ static const u8 config[] = { CONFIG, 0x3d };
+ static const u8 clock[] = { CLOCK_CTL, 0x30 };
+ static const u8 reset[] = { RESET, 0x80 };
+ static const u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
+ static const u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
+ static const u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
+ static const u8 unk1[] = { 0x93, 0x1a };
+ static const u8 unk2[] = { 0xb5, 0x7a };
deb("Demod init!\n");
@@ -890,20 +898,29 @@ static int m920x_probe(struct usb_interface *intf,
return ret;
}
-static struct usb_device_id m920x_table [] = {
- { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
- { USB_DEVICE(USB_VID_ANUBIS_ELECTRONIC,
- USB_PID_MSI_DIGI_VOX_MINI_II) },
- { USB_DEVICE(USB_VID_ANUBIS_ELECTRONIC,
- USB_PID_LIFEVIEW_TV_WALKER_TWIN_COLD) },
- { USB_DEVICE(USB_VID_ANUBIS_ELECTRONIC,
- USB_PID_LIFEVIEW_TV_WALKER_TWIN_WARM) },
- { USB_DEVICE(USB_VID_DPOSH, USB_PID_DPOSH_M9206_COLD) },
- { USB_DEVICE(USB_VID_DPOSH, USB_PID_DPOSH_M9206_WARM) },
- { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_PINNACLE_PCTV310E) },
- { USB_DEVICE(USB_VID_AZUREWAVE, USB_PID_TWINHAN_VP7049) },
- { } /* Terminating entry */
+enum {
+ MSI_MEGASKY580,
+ ANUBIS_MSI_DIGI_VOX_MINI_II,
+ ANUBIS_LIFEVIEW_TV_WALKER_TWIN_COLD,
+ ANUBIS_LIFEVIEW_TV_WALKER_TWIN_WARM,
+ DPOSH_M9206_COLD,
+ DPOSH_M9206_WARM,
+ VISIONPLUS_PINNACLE_PCTV310E,
+ AZUREWAVE_TWINHAN_VP7049,
+};
+
+static const struct usb_device_id m920x_table[] = {
+ DVB_USB_DEV(MSI, MSI_MEGASKY580),
+ DVB_USB_DEV(ANUBIS_ELECTRONIC, ANUBIS_MSI_DIGI_VOX_MINI_II),
+ DVB_USB_DEV(ANUBIS_ELECTRONIC, ANUBIS_LIFEVIEW_TV_WALKER_TWIN_COLD),
+ DVB_USB_DEV(ANUBIS_ELECTRONIC, ANUBIS_LIFEVIEW_TV_WALKER_TWIN_WARM),
+ DVB_USB_DEV(DPOSH, DPOSH_M9206_COLD),
+ DVB_USB_DEV(DPOSH, DPOSH_M9206_WARM),
+ DVB_USB_DEV(VISIONPLUS, VISIONPLUS_PINNACLE_PCTV310E),
+ DVB_USB_DEV(AZUREWAVE, AZUREWAVE_TWINHAN_VP7049),
+ { }
};
+
MODULE_DEVICE_TABLE (usb, m920x_table);
static struct dvb_usb_device_properties megasky_properties = {
@@ -955,7 +972,7 @@ static struct dvb_usb_device_properties megasky_properties = {
.num_device_descs = 1,
.devices = {
{ "MSI Mega Sky 580 DVB-T USB2.0",
- { &m920x_table[0], NULL },
+ { &m920x_table[MSI_MEGASKY580], NULL },
{ NULL },
}
}
@@ -1003,7 +1020,7 @@ static struct dvb_usb_device_properties digivox_mini_ii_properties = {
.num_device_descs = 1,
.devices = {
{ "MSI DIGI VOX mini II DVB-T USB2.0",
- { &m920x_table[1], NULL },
+ { &m920x_table[ANUBIS_MSI_DIGI_VOX_MINI_II], NULL },
{ NULL },
},
}
@@ -1090,8 +1107,8 @@ static struct dvb_usb_device_properties tvwalkertwin_properties = {
.num_device_descs = 1,
.devices = {
{ .name = "LifeView TV Walker Twin DVB-T USB2.0",
- .cold_ids = { &m920x_table[2], NULL },
- .warm_ids = { &m920x_table[3], NULL },
+ .cold_ids = { &m920x_table[ANUBIS_LIFEVIEW_TV_WALKER_TWIN_COLD], NULL },
+ .warm_ids = { &m920x_table[ANUBIS_LIFEVIEW_TV_WALKER_TWIN_WARM], NULL },
},
}
};
@@ -1132,8 +1149,8 @@ static struct dvb_usb_device_properties dposh_properties = {
.num_device_descs = 1,
.devices = {
{ .name = "Dposh DVB-T USB2.0",
- .cold_ids = { &m920x_table[4], NULL },
- .warm_ids = { &m920x_table[5], NULL },
+ .cold_ids = { &m920x_table[DPOSH_M9206_COLD], NULL },
+ .warm_ids = { &m920x_table[DPOSH_M9206_WARM], NULL },
},
}
};
@@ -1188,7 +1205,7 @@ static struct dvb_usb_device_properties pinnacle_pctv310e_properties = {
.num_device_descs = 1,
.devices = {
{ "Pinnacle PCTV 310e",
- { &m920x_table[6], NULL },
+ { &m920x_table[VISIONPLUS_PINNACLE_PCTV310E], NULL },
{ NULL },
}
}
@@ -1243,7 +1260,7 @@ static struct dvb_usb_device_properties vp7049_properties = {
.num_device_descs = 1,
.devices = {
{ "DTV-DVB UDTT7049",
- { &m920x_table[7], NULL },
+ { &m920x_table[AZUREWAVE_TWINHAN_VP7049], NULL },
{ NULL },
}
}
generated by cgit (git 2.34.1) at 2025-12-25 19:46:35 +0000