diff options
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/media/common/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/common/siano/smscoreapi.c | 22 | ||||
| -rw-r--r-- | drivers/media/common/siano/smscoreapi.h | 4 | ||||
| -rw-r--r-- | drivers/media/common/siano/smsdvb-main.c | 11 | ||||
| -rw-r--r-- | drivers/media/common/ttpci-eeprom.c | 159 | ||||
| -rw-r--r-- | drivers/media/common/ttpci-eeprom.h | 22 | ||||
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-v4l2.c | 14 |
8 files changed, 217 insertions, 20 deletions
diff --git a/drivers/media/common/Kconfig b/drivers/media/common/Kconfig index 4ea03b7899a8..0f6bde0f793e 100644 --- a/drivers/media/common/Kconfig +++ b/drivers/media/common/Kconfig @@ -13,6 +13,10 @@ config VIDEO_TVEEPROM tristate depends on I2C +config TTPCI_EEPROM + tristate + depends on I2C + config CYPRESS_FIRMWARE tristate depends on USB diff --git a/drivers/media/common/Makefile b/drivers/media/common/Makefile index b71e4b62eea5..55b5a1900124 100644 --- a/drivers/media/common/Makefile +++ b/drivers/media/common/Makefile @@ -3,3 +3,4 @@ obj-y += b2c2/ saa7146/ siano/ v4l2-tpg/ videobuf2/ obj-$(CONFIG_VIDEO_CX2341X) += cx2341x.o obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o obj-$(CONFIG_CYPRESS_FIRMWARE) += cypress_firmware.o +obj-$(CONFIG_TTPCI_EEPROM) += ttpci-eeprom.o diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c index 410cc3ac6f94..bceaf91faa15 100644 --- a/drivers/media/common/siano/smscoreapi.c +++ b/drivers/media/common/siano/smscoreapi.c @@ -908,7 +908,7 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev, void *buffer, size_t size) { struct sms_firmware *firmware = (struct sms_firmware *) buffer; - struct sms_msg_data4 *msg; + struct sms_msg_data5 *msg; u32 mem_address, calc_checksum = 0; u32 i, *ptr; u8 *payload = firmware->payload; @@ -989,24 +989,20 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev, goto exit_fw_download; if (coredev->mode == DEVICE_MODE_NONE) { - struct sms_msg_data *trigger_msg = - (struct sms_msg_data *) msg; - pr_debug("sending MSG_SMS_SWDOWNLOAD_TRIGGER_REQ\n"); SMS_INIT_MSG(&msg->x_msg_header, MSG_SMS_SWDOWNLOAD_TRIGGER_REQ, - sizeof(struct sms_msg_hdr) + - sizeof(u32) * 5); + sizeof(*msg)); - trigger_msg->msg_data[0] = firmware->start_address; + msg->msg_data[0] = firmware->start_address; /* Entry point */ - trigger_msg->msg_data[1] = 6; /* Priority */ - trigger_msg->msg_data[2] = 0x200; /* Stack size */ - trigger_msg->msg_data[3] = 0; /* Parameter */ - trigger_msg->msg_data[4] = 4; /* Task ID */ + msg->msg_data[1] = 6; /* Priority */ + msg->msg_data[2] = 0x200; /* Stack size */ + msg->msg_data[3] = 0; /* Parameter */ + msg->msg_data[4] = 4; /* Task ID */ - rc = smscore_sendrequest_and_wait(coredev, trigger_msg, - trigger_msg->x_msg_header.msg_length, + rc = smscore_sendrequest_and_wait(coredev, msg, + msg->x_msg_header.msg_length, &coredev->trigger_done); } else { SMS_INIT_MSG(&msg->x_msg_header, MSG_SW_RELOAD_EXEC_REQ, diff --git a/drivers/media/common/siano/smscoreapi.h b/drivers/media/common/siano/smscoreapi.h index 4a6b9f4c44ac..f8789ee0d554 100644 --- a/drivers/media/common/siano/smscoreapi.h +++ b/drivers/media/common/siano/smscoreapi.h @@ -624,9 +624,9 @@ struct sms_msg_data2 { u32 msg_data[2]; }; -struct sms_msg_data4 { +struct sms_msg_data5 { struct sms_msg_hdr x_msg_header; - u32 msg_data[4]; + u32 msg_data[5]; }; struct sms_data_download { diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c index cd5bafe9a3ac..f80caaa333da 100644 --- a/drivers/media/common/siano/smsdvb-main.c +++ b/drivers/media/common/siano/smsdvb-main.c @@ -26,8 +26,8 @@ Copyright (C) 2006-2008, Uri Shkolnik DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); -static struct list_head g_smsdvb_clients; -static struct mutex g_smsdvb_clientslock; +static LIST_HEAD(g_smsdvb_clients); +static DEFINE_MUTEX(g_smsdvb_clientslock); static u32 sms_to_guard_interval_table[] = { [0] = GUARD_INTERVAL_1_32, @@ -1212,6 +1212,10 @@ static int smsdvb_hotplug(struct smscore_device_t *coredev, return 0; media_graph_error: + mutex_lock(&g_smsdvb_clientslock); + list_del(&client->entry); + mutex_unlock(&g_smsdvb_clientslock); + smsdvb_debugfs_release(client); client_error: @@ -1236,9 +1240,6 @@ static int __init smsdvb_module_init(void) { int rc; - INIT_LIST_HEAD(&g_smsdvb_clients); - mutex_init(&g_smsdvb_clientslock); - smsdvb_debugfs_register(); rc = smscore_register_hotplug(smsdvb_hotplug); diff --git a/drivers/media/common/ttpci-eeprom.c b/drivers/media/common/ttpci-eeprom.c new file mode 100644 index 000000000000..ef8746684d31 --- /dev/null +++ b/drivers/media/common/ttpci-eeprom.c @@ -0,0 +1,159 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + Retrieve encoded MAC address from 24C16 serial 2-wire EEPROM, + decode it and store it in the associated adapter struct for + use by dvb_net.c + + This card appear to have the 24C16 write protect held to ground, + thus permitting normal read/write operation. Theoretically it + would be possible to write routines to burn a different (encoded) + MAC address into the EEPROM. + + Robert Schlabbach GMX + Michael Glaum KVH Industries + Holger Waechtler Convergence + + Copyright (C) 2002-2003 Ralph Metzler <rjkm@metzlerbros.de> + Metzler Brothers Systementwicklung GbR + + +*/ + +#include <asm/errno.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/i2c.h> +#include <linux/etherdevice.h> + +#include "ttpci-eeprom.h" + +#if 1 +#define dprintk(x...) do { printk(x); } while (0) +#else +#define dprintk(x...) do { } while (0) +#endif + + +static int check_mac_tt(u8 *buf) +{ + int i; + u16 tmp = 0xffff; + + for (i = 0; i < 8; i++) { + tmp = (tmp << 8) | ((tmp >> 8) ^ buf[i]); + tmp ^= (tmp >> 4) & 0x0f; + tmp ^= (tmp << 12) ^ ((tmp & 0xff) << 5); + } + tmp ^= 0xffff; + return (((tmp >> 8) ^ buf[8]) | ((tmp & 0xff) ^ buf[9])); +} + +static int getmac_tt(u8 * decodedMAC, u8 * encodedMAC) +{ + u8 xor[20] = { 0x72, 0x23, 0x68, 0x19, 0x5c, 0xa8, 0x71, 0x2c, + 0x54, 0xd3, 0x7b, 0xf1, 0x9E, 0x23, 0x16, 0xf6, + 0x1d, 0x36, 0x64, 0x78}; + u8 data[20]; + int i; + + /* In case there is a sig check failure have the orig contents available */ + memcpy(data, encodedMAC, 20); + + for (i = 0; i < 20; i++) + data[i] ^= xor[i]; + for (i = 0; i < 10; i++) + data[i] = ((data[2 * i + 1] << 8) | data[2 * i]) + >> ((data[2 * i + 1] >> 6) & 3); + + if (check_mac_tt(data)) + return -ENODEV; + + decodedMAC[0] = data[2]; decodedMAC[1] = data[1]; decodedMAC[2] = data[0]; + decodedMAC[3] = data[6]; decodedMAC[4] = data[5]; decodedMAC[5] = data[4]; + return 0; +} + +int ttpci_eeprom_decode_mac(u8 *decodedMAC, u8 *encodedMAC) +{ + u8 xor[20] = { 0x72, 0x23, 0x68, 0x19, 0x5c, 0xa8, 0x71, 0x2c, + 0x54, 0xd3, 0x7b, 0xf1, 0x9E, 0x23, 0x16, 0xf6, + 0x1d, 0x36, 0x64, 0x78}; + u8 data[20]; + int i; + + memcpy(data, encodedMAC, 20); + + for (i = 0; i < 20; i++) + data[i] ^= xor[i]; + for (i = 0; i < 10; i++) + data[i] = ((data[2 * i + 1] << 8) | data[2 * i]) + >> ((data[2 * i + 1] >> 6) & 3); + + if (check_mac_tt(data)) + return -ENODEV; + + decodedMAC[0] = data[2]; + decodedMAC[1] = data[1]; + decodedMAC[2] = data[0]; + decodedMAC[3] = data[6]; + decodedMAC[4] = data[5]; + decodedMAC[5] = data[4]; + return 0; +} +EXPORT_SYMBOL(ttpci_eeprom_decode_mac); + +static int ttpci_eeprom_read_encodedMAC(struct i2c_adapter *adapter, u8 * encodedMAC) +{ + int ret; + u8 b0[] = { 0xcc }; + + struct i2c_msg msg[] = { + { .addr = 0x50, .flags = 0, .buf = b0, .len = 1 }, + { .addr = 0x50, .flags = I2C_M_RD, .buf = encodedMAC, .len = 20 } + }; + + /* dprintk("%s\n", __func__); */ + + ret = i2c_transfer(adapter, msg, 2); + + if (ret != 2) /* Assume EEPROM isn't there */ + return (-ENODEV); + + return 0; +} + + +int ttpci_eeprom_parse_mac(struct i2c_adapter *adapter, u8 *proposed_mac) +{ + int ret; + u8 encodedMAC[20]; + u8 decodedMAC[6]; + + ret = ttpci_eeprom_read_encodedMAC(adapter, encodedMAC); + + if (ret != 0) { /* Will only be -ENODEV */ + dprintk("Couldn't read from EEPROM: not there?\n"); + eth_zero_addr(proposed_mac); + return ret; + } + + ret = getmac_tt(decodedMAC, encodedMAC); + if( ret != 0 ) { + dprintk("adapter failed MAC signature check\n"); + dprintk("encoded MAC from EEPROM was %*phC", + (int)sizeof(encodedMAC), &encodedMAC); + eth_zero_addr(proposed_mac); + return ret; + } + + memcpy(proposed_mac, decodedMAC, 6); + dprintk("adapter has MAC addr = %pM\n", decodedMAC); + return 0; +} + +EXPORT_SYMBOL(ttpci_eeprom_parse_mac); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ralph Metzler, Marcus Metzler, others"); +MODULE_DESCRIPTION("Decode dvb_net MAC address from EEPROM of PCI DVB cards made by Siemens, Technotrend, Hauppauge"); diff --git a/drivers/media/common/ttpci-eeprom.h b/drivers/media/common/ttpci-eeprom.h new file mode 100644 index 000000000000..ee741867ba47 --- /dev/null +++ b/drivers/media/common/ttpci-eeprom.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + Retrieve encoded MAC address from ATMEL ttpci_eeprom serial 2-wire EEPROM, + decode it and store it in associated adapter net device + + Robert Schlabbach GMX + Michael Glaum KVH Industries + Holger Waechtler Convergence + + +*/ + +#ifndef __TTPCI_EEPROM_H__ +#define __TTPCI_EEPROM_H__ + +#include <linux/types.h> +#include <linux/i2c.h> + +extern int ttpci_eeprom_decode_mac(u8 *decodedMAC, u8 *encodedMAC); +extern int ttpci_eeprom_parse_mac(struct i2c_adapter *adapter, u8 *propsed_mac); + +#endif diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c index 7e96f67c60ba..2988bb38ceb1 100644 --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c @@ -939,6 +939,20 @@ void vb2_queue_release(struct vb2_queue *q) } EXPORT_SYMBOL_GPL(vb2_queue_release); +int vb2_queue_change_type(struct vb2_queue *q, unsigned int type) +{ + if (type == q->type) + return 0; + + if (vb2_is_busy(q)) + return -EBUSY; + + q->type = type; + + return 0; +} +EXPORT_SYMBOL_GPL(vb2_queue_change_type); + __poll_t vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait) { struct video_device *vfd = video_devdata(file); |