d18ca5b7ce
Add lock to prevent concurrent access for control message as control
message function uses shared buffer. Without the lock there may be
remote control polling which messes the buffer causing IO errors.
Increase buffer size and add check for maximum supported message
length.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=103391
Fixes: c56222a6b2 ("[media] rtl28xxu: move usb buffers to state")
Cc: <stable@vger.kernel.org> # 4.0+
Signed-off-by: Antti Palosaari <crope@iki.fi>
291 lines
9.9 KiB
C
291 lines
9.9 KiB
C
/*
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* Realtek RTL28xxU DVB USB driver
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*
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* Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
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* Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef RTL28XXU_H
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#define RTL28XXU_H
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#include <linux/platform_device.h>
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#include "dvb_usb.h"
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#include "rtl2830.h"
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#include "rtl2832.h"
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#include "rtl2832_sdr.h"
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#include "mn88472.h"
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#include "mn88473.h"
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#include "qt1010.h"
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#include "mt2060.h"
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#include "mxl5005s.h"
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#include "fc0012.h"
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#include "fc0013.h"
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#include "e4000.h"
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#include "fc2580.h"
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#include "tua9001.h"
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#include "r820t.h"
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#include "si2168.h"
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#include "si2157.h"
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/*
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* USB commands
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* (usb_control_msg() index parameter)
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*/
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#define DEMOD 0x0000
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#define USB 0x0100
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#define SYS 0x0200
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#define I2C 0x0300
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#define I2C_DA 0x0600
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#define CMD_WR_FLAG 0x0010
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#define CMD_DEMOD_RD 0x0000
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#define CMD_DEMOD_WR 0x0010
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#define CMD_USB_RD 0x0100
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#define CMD_USB_WR 0x0110
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#define CMD_SYS_RD 0x0200
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#define CMD_IR_RD 0x0201
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#define CMD_IR_WR 0x0211
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#define CMD_SYS_WR 0x0210
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#define CMD_I2C_RD 0x0300
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#define CMD_I2C_WR 0x0310
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#define CMD_I2C_DA_RD 0x0600
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#define CMD_I2C_DA_WR 0x0610
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struct rtl28xxu_dev {
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u8 buf[128];
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u8 chip_id;
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u8 tuner;
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char *tuner_name;
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u8 page; /* integrated demod active register page */
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struct i2c_adapter *demod_i2c_adapter;
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bool rc_active;
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bool new_i2c_write;
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struct i2c_client *i2c_client_demod;
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struct i2c_client *i2c_client_tuner;
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struct i2c_client *i2c_client_slave_demod;
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struct platform_device *platform_device_sdr;
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#define SLAVE_DEMOD_NONE 0
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#define SLAVE_DEMOD_MN88472 1
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#define SLAVE_DEMOD_MN88473 2
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#define SLAVE_DEMOD_SI2168 3
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unsigned int slave_demod:2;
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union {
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struct rtl2830_platform_data rtl2830_platform_data;
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struct rtl2832_platform_data rtl2832_platform_data;
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};
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};
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enum rtl28xxu_chip_id {
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CHIP_ID_NONE,
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CHIP_ID_RTL2831U,
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CHIP_ID_RTL2832U,
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};
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/* XXX: Hack. This must be keep sync with rtl2832 demod driver. */
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enum rtl28xxu_tuner {
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TUNER_NONE,
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TUNER_RTL2830_QT1010 = 0x10,
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TUNER_RTL2830_MT2060,
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TUNER_RTL2830_MXL5005S,
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TUNER_RTL2832_MT2266 = 0x20,
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TUNER_RTL2832_FC2580,
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TUNER_RTL2832_MT2063,
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TUNER_RTL2832_MAX3543,
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TUNER_RTL2832_TUA9001,
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TUNER_RTL2832_MXL5007T,
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TUNER_RTL2832_FC0012,
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TUNER_RTL2832_E4000,
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TUNER_RTL2832_TDA18272,
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TUNER_RTL2832_FC0013,
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TUNER_RTL2832_R820T,
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TUNER_RTL2832_R828D,
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TUNER_RTL2832_SI2157,
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};
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struct rtl28xxu_req {
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u16 value;
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u16 index;
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u16 size;
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u8 *data;
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};
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struct rtl28xxu_reg_val {
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u16 reg;
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u8 val;
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};
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struct rtl28xxu_reg_val_mask {
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u16 reg;
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u8 val;
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u8 mask;
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};
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/*
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* memory map
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*
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* 0x0000 DEMOD : demodulator
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* 0x2000 USB : SIE, USB endpoint, debug, DMA
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* 0x3000 SYS : system
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* 0xfc00 RC : remote controller (not RTL2831U)
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*/
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/*
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* USB registers
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*/
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/* SIE Control Registers */
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#define USB_SYSCTL 0x2000 /* USB system control */
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#define USB_SYSCTL_0 0x2000 /* USB system control */
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#define USB_SYSCTL_1 0x2001 /* USB system control */
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#define USB_SYSCTL_2 0x2002 /* USB system control */
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#define USB_SYSCTL_3 0x2003 /* USB system control */
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#define USB_IRQSTAT 0x2008 /* SIE interrupt status */
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#define USB_IRQEN 0x200C /* SIE interrupt enable */
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#define USB_CTRL 0x2010 /* USB control */
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#define USB_STAT 0x2014 /* USB status */
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#define USB_DEVADDR 0x2018 /* USB device address */
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#define USB_TEST 0x201C /* USB test mode */
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#define USB_FRAME_NUMBER 0x2020 /* frame number */
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#define USB_FIFO_ADDR 0x2028 /* address of SIE FIFO RAM */
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#define USB_FIFO_CMD 0x202A /* SIE FIFO RAM access command */
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#define USB_FIFO_DATA 0x2030 /* SIE FIFO RAM data */
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/* Endpoint Registers */
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#define EP0_SETUPA 0x20F8 /* EP 0 setup packet lower byte */
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#define EP0_SETUPB 0x20FC /* EP 0 setup packet higher byte */
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#define USB_EP0_CFG 0x2104 /* EP 0 configure */
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#define USB_EP0_CTL 0x2108 /* EP 0 control */
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#define USB_EP0_STAT 0x210C /* EP 0 status */
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#define USB_EP0_IRQSTAT 0x2110 /* EP 0 interrupt status */
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#define USB_EP0_IRQEN 0x2114 /* EP 0 interrupt enable */
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#define USB_EP0_MAXPKT 0x2118 /* EP 0 max packet size */
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#define USB_EP0_BC 0x2120 /* EP 0 FIFO byte counter */
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#define USB_EPA_CFG 0x2144 /* EP A configure */
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#define USB_EPA_CFG_0 0x2144 /* EP A configure */
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#define USB_EPA_CFG_1 0x2145 /* EP A configure */
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#define USB_EPA_CFG_2 0x2146 /* EP A configure */
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#define USB_EPA_CFG_3 0x2147 /* EP A configure */
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#define USB_EPA_CTL 0x2148 /* EP A control */
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#define USB_EPA_CTL_0 0x2148 /* EP A control */
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#define USB_EPA_CTL_1 0x2149 /* EP A control */
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#define USB_EPA_CTL_2 0x214A /* EP A control */
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#define USB_EPA_CTL_3 0x214B /* EP A control */
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#define USB_EPA_STAT 0x214C /* EP A status */
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#define USB_EPA_IRQSTAT 0x2150 /* EP A interrupt status */
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#define USB_EPA_IRQEN 0x2154 /* EP A interrupt enable */
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#define USB_EPA_MAXPKT 0x2158 /* EP A max packet size */
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#define USB_EPA_MAXPKT_0 0x2158 /* EP A max packet size */
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#define USB_EPA_MAXPKT_1 0x2159 /* EP A max packet size */
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#define USB_EPA_MAXPKT_2 0x215A /* EP A max packet size */
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#define USB_EPA_MAXPKT_3 0x215B /* EP A max packet size */
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#define USB_EPA_FIFO_CFG 0x2160 /* EP A FIFO configure */
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#define USB_EPA_FIFO_CFG_0 0x2160 /* EP A FIFO configure */
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#define USB_EPA_FIFO_CFG_1 0x2161 /* EP A FIFO configure */
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#define USB_EPA_FIFO_CFG_2 0x2162 /* EP A FIFO configure */
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#define USB_EPA_FIFO_CFG_3 0x2163 /* EP A FIFO configure */
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/* Debug Registers */
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#define USB_PHYTSTDIS 0x2F04 /* PHY test disable */
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#define USB_TOUT_VAL 0x2F08 /* USB time-out time */
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#define USB_VDRCTRL 0x2F10 /* UTMI vendor signal control */
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#define USB_VSTAIN 0x2F14 /* UTMI vendor signal status in */
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#define USB_VLOADM 0x2F18 /* UTMI load vendor signal status in */
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#define USB_VSTAOUT 0x2F1C /* UTMI vendor signal status out */
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#define USB_UTMI_TST 0x2F80 /* UTMI test */
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#define USB_UTMI_STATUS 0x2F84 /* UTMI status */
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#define USB_TSTCTL 0x2F88 /* test control */
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#define USB_TSTCTL2 0x2F8C /* test control 2 */
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#define USB_PID_FORCE 0x2F90 /* force PID */
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#define USB_PKTERR_CNT 0x2F94 /* packet error counter */
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#define USB_RXERR_CNT 0x2F98 /* RX error counter */
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#define USB_MEM_BIST 0x2F9C /* MEM BIST test */
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#define USB_SLBBIST 0x2FA0 /* self-loop-back BIST */
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#define USB_CNTTEST 0x2FA4 /* counter test */
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#define USB_PHYTST 0x2FC0 /* USB PHY test */
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#define USB_DBGIDX 0x2FF0 /* select individual block debug signal */
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#define USB_DBGMUX 0x2FF4 /* debug signal module mux */
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/*
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* SYS registers
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*/
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/* demod control registers */
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#define SYS_SYS0 0x3000 /* include DEMOD_CTL, GPO, GPI, GPOE */
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#define SYS_DEMOD_CTL 0x3000 /* control register for DVB-T demodulator */
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/* GPIO registers */
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#define SYS_GPIO_OUT_VAL 0x3001 /* output value of GPIO */
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#define SYS_GPIO_IN_VAL 0x3002 /* input value of GPIO */
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#define SYS_GPIO_OUT_EN 0x3003 /* output enable of GPIO */
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#define SYS_SYS1 0x3004 /* include GPD, SYSINTE, SYSINTS, GP_CFG0 */
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#define SYS_GPIO_DIR 0x3004 /* direction control for GPIO */
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#define SYS_SYSINTE 0x3005 /* system interrupt enable */
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#define SYS_SYSINTS 0x3006 /* system interrupt status */
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#define SYS_GPIO_CFG0 0x3007 /* PAD configuration for GPIO0-GPIO3 */
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#define SYS_SYS2 0x3008 /* include GP_CFG1 and 3 reserved bytes */
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#define SYS_GPIO_CFG1 0x3008 /* PAD configuration for GPIO4 */
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#define SYS_DEMOD_CTL1 0x300B
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/* IrDA registers */
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#define SYS_IRRC_PSR 0x3020 /* IR protocol selection */
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#define SYS_IRRC_PER 0x3024 /* IR protocol extension */
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#define SYS_IRRC_SF 0x3028 /* IR sampling frequency */
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#define SYS_IRRC_DPIR 0x302C /* IR data package interval */
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#define SYS_IRRC_CR 0x3030 /* IR control */
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#define SYS_IRRC_RP 0x3034 /* IR read port */
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#define SYS_IRRC_SR 0x3038 /* IR status */
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/* I2C master registers */
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#define SYS_I2CCR 0x3040 /* I2C clock */
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#define SYS_I2CMCR 0x3044 /* I2C master control */
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#define SYS_I2CMSTR 0x3048 /* I2C master SCL timing */
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#define SYS_I2CMSR 0x304C /* I2C master status */
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#define SYS_I2CMFR 0x3050 /* I2C master FIFO */
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/*
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* IR registers
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*/
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#define IR_RX_BUF 0xFC00
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#define IR_RX_IE 0xFD00
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#define IR_RX_IF 0xFD01
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#define IR_RX_CTRL 0xFD02
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#define IR_RX_CFG 0xFD03
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#define IR_MAX_DURATION0 0xFD04
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#define IR_MAX_DURATION1 0xFD05
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#define IR_IDLE_LEN0 0xFD06
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#define IR_IDLE_LEN1 0xFD07
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#define IR_GLITCH_LEN 0xFD08
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#define IR_RX_BUF_CTRL 0xFD09
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#define IR_RX_BUF_DATA 0xFD0A
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#define IR_RX_BC 0xFD0B
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#define IR_RX_CLK 0xFD0C
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#define IR_RX_C_COUNT_L 0xFD0D
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#define IR_RX_C_COUNT_H 0xFD0E
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#define IR_SUSPEND_CTRL 0xFD10
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#define IR_ERR_TOL_CTRL 0xFD11
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#define IR_UNIT_LEN 0xFD12
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#define IR_ERR_TOL_LEN 0xFD13
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#define IR_MAX_H_TOL_LEN 0xFD14
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#define IR_MAX_L_TOL_LEN 0xFD15
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#define IR_MASK_CTRL 0xFD16
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#define IR_MASK_DATA 0xFD17
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#define IR_RES_MASK_ADDR 0xFD18
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#define IR_RES_MASK_T_LEN 0xFD19
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#endif
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