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1378 lines
38 KiB
1378 lines
38 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/****************************************************************************** |
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* cxacru.c - driver for USB ADSL modems based on |
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* Conexant AccessRunner chipset |
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* |
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* Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan |
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* Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru) |
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* Copyright (C) 2007 Simon Arlott |
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* Copyright (C) 2009 Simon Arlott |
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******************************************************************************/ |
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/* |
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* Credit is due for Josep Comas, who created the original patch to speedtch.c |
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* to support the different padding used by the AccessRunner (now generalized |
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* into usbatm), and the userspace firmware loading utility. |
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*/ |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/kernel.h> |
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#include <linux/timer.h> |
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#include <linux/errno.h> |
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#include <linux/slab.h> |
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#include <linux/device.h> |
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#include <linux/firmware.h> |
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#include <linux/mutex.h> |
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#include <asm/unaligned.h> |
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#include "usbatm.h" |
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#define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott" |
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#define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver" |
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static const char cxacru_driver_name[] = "cxacru"; |
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#define CXACRU_EP_CMD 0x01 /* Bulk/interrupt in/out */ |
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#define CXACRU_EP_DATA 0x02 /* Bulk in/out */ |
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#define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */ |
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#define CMD_MAX_CONFIG ((CMD_PACKET_SIZE / 4 - 1) / 2) |
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/* Addresses */ |
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#define PLLFCLK_ADDR 0x00350068 |
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#define PLLBCLK_ADDR 0x0035006c |
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#define SDRAMEN_ADDR 0x00350010 |
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#define FW_ADDR 0x00801000 |
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#define BR_ADDR 0x00180600 |
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#define SIG_ADDR 0x00180500 |
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#define BR_STACK_ADDR 0x00187f10 |
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/* Values */ |
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#define SDRAM_ENA 0x1 |
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#define CMD_TIMEOUT 2000 /* msecs */ |
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#define POLL_INTERVAL 1 /* secs */ |
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/* commands for interaction with the modem through the control channel before |
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* firmware is loaded */ |
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enum cxacru_fw_request { |
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FW_CMD_ERR, |
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FW_GET_VER, |
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FW_READ_MEM, |
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FW_WRITE_MEM, |
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FW_RMW_MEM, |
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FW_CHECKSUM_MEM, |
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FW_GOTO_MEM, |
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}; |
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/* commands for interaction with the modem through the control channel once |
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* firmware is loaded */ |
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enum cxacru_cm_request { |
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CM_REQUEST_UNDEFINED = 0x80, |
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CM_REQUEST_TEST, |
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CM_REQUEST_CHIP_GET_MAC_ADDRESS, |
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CM_REQUEST_CHIP_GET_DP_VERSIONS, |
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CM_REQUEST_CHIP_ADSL_LINE_START, |
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CM_REQUEST_CHIP_ADSL_LINE_STOP, |
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CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS, |
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CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED, |
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CM_REQUEST_CARD_INFO_GET, |
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CM_REQUEST_CARD_DATA_GET, |
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CM_REQUEST_CARD_DATA_SET, |
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CM_REQUEST_COMMAND_HW_IO, |
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CM_REQUEST_INTERFACE_HW_IO, |
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CM_REQUEST_CARD_SERIAL_DATA_PATH_GET, |
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CM_REQUEST_CARD_SERIAL_DATA_PATH_SET, |
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CM_REQUEST_CARD_CONTROLLER_VERSION_GET, |
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CM_REQUEST_CARD_GET_STATUS, |
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CM_REQUEST_CARD_GET_MAC_ADDRESS, |
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CM_REQUEST_CARD_GET_DATA_LINK_STATUS, |
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CM_REQUEST_MAX, |
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}; |
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/* commands for interaction with the flash memory |
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* |
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* read: response is the contents of the first 60 bytes of flash memory |
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* write: request contains the 60 bytes of data to write to flash memory |
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* response is the contents of the first 60 bytes of flash memory |
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* |
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* layout: PP PP VV VV MM MM MM MM MM MM ?? ?? SS SS SS SS SS SS SS SS |
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* SS SS SS SS SS SS SS SS 00 00 00 00 00 00 00 00 00 00 00 00 |
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* 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
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* |
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* P: le16 USB Product ID |
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* V: le16 USB Vendor ID |
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* M: be48 MAC Address |
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* S: le16 ASCII Serial Number |
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*/ |
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enum cxacru_cm_flash { |
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CM_FLASH_READ = 0xa1, |
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CM_FLASH_WRITE = 0xa2 |
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}; |
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/* reply codes to the commands above */ |
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enum cxacru_cm_status { |
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CM_STATUS_UNDEFINED, |
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CM_STATUS_SUCCESS, |
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CM_STATUS_ERROR, |
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CM_STATUS_UNSUPPORTED, |
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CM_STATUS_UNIMPLEMENTED, |
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CM_STATUS_PARAMETER_ERROR, |
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CM_STATUS_DBG_LOOPBACK, |
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CM_STATUS_MAX, |
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}; |
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/* indices into CARD_INFO_GET return array */ |
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enum cxacru_info_idx { |
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CXINF_DOWNSTREAM_RATE, |
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CXINF_UPSTREAM_RATE, |
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CXINF_LINK_STATUS, |
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CXINF_LINE_STATUS, |
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CXINF_MAC_ADDRESS_HIGH, |
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CXINF_MAC_ADDRESS_LOW, |
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CXINF_UPSTREAM_SNR_MARGIN, |
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CXINF_DOWNSTREAM_SNR_MARGIN, |
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CXINF_UPSTREAM_ATTENUATION, |
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CXINF_DOWNSTREAM_ATTENUATION, |
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CXINF_TRANSMITTER_POWER, |
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CXINF_UPSTREAM_BITS_PER_FRAME, |
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CXINF_DOWNSTREAM_BITS_PER_FRAME, |
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CXINF_STARTUP_ATTEMPTS, |
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CXINF_UPSTREAM_CRC_ERRORS, |
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CXINF_DOWNSTREAM_CRC_ERRORS, |
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CXINF_UPSTREAM_FEC_ERRORS, |
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CXINF_DOWNSTREAM_FEC_ERRORS, |
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CXINF_UPSTREAM_HEC_ERRORS, |
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CXINF_DOWNSTREAM_HEC_ERRORS, |
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CXINF_LINE_STARTABLE, |
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CXINF_MODULATION, |
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CXINF_ADSL_HEADEND, |
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CXINF_ADSL_HEADEND_ENVIRONMENT, |
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CXINF_CONTROLLER_VERSION, |
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/* dunno what the missing two mean */ |
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CXINF_MAX = 0x1c, |
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}; |
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enum cxacru_poll_state { |
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CXPOLL_STOPPING, |
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CXPOLL_STOPPED, |
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CXPOLL_POLLING, |
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CXPOLL_SHUTDOWN |
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}; |
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struct cxacru_modem_type { |
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u32 pll_f_clk; |
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u32 pll_b_clk; |
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int boot_rom_patch; |
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}; |
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struct cxacru_data { |
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struct usbatm_data *usbatm; |
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const struct cxacru_modem_type *modem_type; |
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int line_status; |
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struct mutex adsl_state_serialize; |
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int adsl_status; |
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struct delayed_work poll_work; |
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u32 card_info[CXINF_MAX]; |
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struct mutex poll_state_serialize; |
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enum cxacru_poll_state poll_state; |
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/* contol handles */ |
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struct mutex cm_serialize; |
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u8 *rcv_buf; |
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u8 *snd_buf; |
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struct urb *rcv_urb; |
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struct urb *snd_urb; |
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struct completion rcv_done; |
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struct completion snd_done; |
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}; |
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static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, |
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u8 *wdata, int wsize, u8 *rdata, int rsize); |
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static void cxacru_poll_status(struct work_struct *work); |
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/* Card info exported through sysfs */ |
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#define CXACRU__ATTR_INIT(_name) \ |
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static DEVICE_ATTR_RO(_name) |
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#define CXACRU_CMD_INIT(_name) \ |
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static DEVICE_ATTR_RW(_name) |
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#define CXACRU_SET_INIT(_name) \ |
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static DEVICE_ATTR_WO(_name) |
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#define CXACRU_ATTR_INIT(_value, _type, _name) \ |
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static ssize_t _name##_show(struct device *dev, \ |
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struct device_attribute *attr, char *buf) \ |
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{ \ |
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struct cxacru_data *instance = to_usbatm_driver_data(\ |
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to_usb_interface(dev)); \ |
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\ |
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if (instance == NULL) \ |
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return -ENODEV; \ |
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\ |
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return cxacru_sysfs_showattr_##_type(instance->card_info[_value], buf); \ |
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} \ |
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CXACRU__ATTR_INIT(_name) |
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#define CXACRU_ATTR_CREATE(_v, _t, _name) CXACRU_DEVICE_CREATE_FILE(_name) |
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#define CXACRU_CMD_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name) |
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#define CXACRU_SET_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name) |
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#define CXACRU__ATTR_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name) |
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#define CXACRU_ATTR_REMOVE(_v, _t, _name) CXACRU_DEVICE_REMOVE_FILE(_name) |
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#define CXACRU_CMD_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name) |
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#define CXACRU_SET_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name) |
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#define CXACRU__ATTR_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name) |
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static ssize_t cxacru_sysfs_showattr_u32(u32 value, char *buf) |
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{ |
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return sprintf(buf, "%u\n", value); |
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} |
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static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf) |
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{ |
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return sprintf(buf, "%d\n", value); |
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} |
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static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf) |
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{ |
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if (likely(value >= 0)) { |
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return snprintf(buf, PAGE_SIZE, "%u.%02u\n", |
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value / 100, value % 100); |
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} else { |
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value = -value; |
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return snprintf(buf, PAGE_SIZE, "-%u.%02u\n", |
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value / 100, value % 100); |
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} |
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} |
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static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf) |
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{ |
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static char *str[] = { "no", "yes" }; |
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if (unlikely(value >= ARRAY_SIZE(str))) |
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return sprintf(buf, "%u\n", value); |
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return sprintf(buf, "%s\n", str[value]); |
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} |
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static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf) |
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{ |
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static char *str[] = { NULL, "not connected", "connected", "lost" }; |
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if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) |
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return sprintf(buf, "%u\n", value); |
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return sprintf(buf, "%s\n", str[value]); |
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} |
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static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf) |
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{ |
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static char *str[] = { "down", "attempting to activate", |
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"training", "channel analysis", "exchange", "up", |
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"waiting", "initialising" |
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}; |
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if (unlikely(value >= ARRAY_SIZE(str))) |
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return sprintf(buf, "%u\n", value); |
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return sprintf(buf, "%s\n", str[value]); |
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} |
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static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf) |
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{ |
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static char *str[] = { |
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"", |
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"ANSI T1.413", |
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"ITU-T G.992.1 (G.DMT)", |
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"ITU-T G.992.2 (G.LITE)" |
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}; |
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if (unlikely(value >= ARRAY_SIZE(str))) |
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return sprintf(buf, "%u\n", value); |
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return sprintf(buf, "%s\n", str[value]); |
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} |
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/* |
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* This could use MAC_ADDRESS_HIGH and MAC_ADDRESS_LOW, but since |
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* this data is already in atm_dev there's no point. |
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* |
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* MAC_ADDRESS_HIGH = 0x????5544 |
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* MAC_ADDRESS_LOW = 0x33221100 |
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* Where 00-55 are bytes 0-5 of the MAC. |
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*/ |
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static ssize_t mac_address_show(struct device *dev, |
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struct device_attribute *attr, char *buf) |
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{ |
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struct cxacru_data *instance = to_usbatm_driver_data( |
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to_usb_interface(dev)); |
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if (instance == NULL || instance->usbatm->atm_dev == NULL) |
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return -ENODEV; |
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return sprintf(buf, "%pM\n", instance->usbatm->atm_dev->esi); |
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} |
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static ssize_t adsl_state_show(struct device *dev, |
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struct device_attribute *attr, char *buf) |
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{ |
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static char *str[] = { "running", "stopped" }; |
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struct cxacru_data *instance = to_usbatm_driver_data( |
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to_usb_interface(dev)); |
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u32 value; |
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if (instance == NULL) |
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return -ENODEV; |
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value = instance->card_info[CXINF_LINE_STARTABLE]; |
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if (unlikely(value >= ARRAY_SIZE(str))) |
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return sprintf(buf, "%u\n", value); |
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return sprintf(buf, "%s\n", str[value]); |
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} |
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static ssize_t adsl_state_store(struct device *dev, |
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struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct cxacru_data *instance = to_usbatm_driver_data( |
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to_usb_interface(dev)); |
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int ret; |
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int poll = -1; |
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char str_cmd[8]; |
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int len = strlen(buf); |
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if (!capable(CAP_NET_ADMIN)) |
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return -EACCES; |
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ret = sscanf(buf, "%7s", str_cmd); |
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if (ret != 1) |
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return -EINVAL; |
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ret = 0; |
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if (instance == NULL) |
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return -ENODEV; |
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if (mutex_lock_interruptible(&instance->adsl_state_serialize)) |
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return -ERESTARTSYS; |
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if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) { |
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ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0); |
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if (ret < 0) { |
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atm_err(instance->usbatm, "change adsl state:" |
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" CHIP_ADSL_LINE_STOP returned %d\n", ret); |
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ret = -EIO; |
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} else { |
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ret = len; |
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poll = CXPOLL_STOPPED; |
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} |
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} |
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/* Line status is only updated every second |
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* and the device appears to only react to |
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* START/STOP every second too. Wait 1.5s to |
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* be sure that restart will have an effect. */ |
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if (!strcmp(str_cmd, "restart")) |
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msleep(1500); |
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if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) { |
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ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); |
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if (ret < 0) { |
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atm_err(instance->usbatm, "change adsl state:" |
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" CHIP_ADSL_LINE_START returned %d\n", ret); |
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ret = -EIO; |
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} else { |
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ret = len; |
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poll = CXPOLL_POLLING; |
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} |
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} |
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if (!strcmp(str_cmd, "poll")) { |
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ret = len; |
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poll = CXPOLL_POLLING; |
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} |
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if (ret == 0) { |
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ret = -EINVAL; |
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poll = -1; |
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} |
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if (poll == CXPOLL_POLLING) { |
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mutex_lock(&instance->poll_state_serialize); |
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switch (instance->poll_state) { |
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case CXPOLL_STOPPED: |
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/* start polling */ |
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instance->poll_state = CXPOLL_POLLING; |
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break; |
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case CXPOLL_STOPPING: |
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/* abort stop request */ |
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instance->poll_state = CXPOLL_POLLING; |
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fallthrough; |
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case CXPOLL_POLLING: |
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case CXPOLL_SHUTDOWN: |
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/* don't start polling */ |
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poll = -1; |
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} |
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mutex_unlock(&instance->poll_state_serialize); |
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} else if (poll == CXPOLL_STOPPED) { |
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mutex_lock(&instance->poll_state_serialize); |
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/* request stop */ |
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if (instance->poll_state == CXPOLL_POLLING) |
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instance->poll_state = CXPOLL_STOPPING; |
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mutex_unlock(&instance->poll_state_serialize); |
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} |
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mutex_unlock(&instance->adsl_state_serialize); |
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if (poll == CXPOLL_POLLING) |
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cxacru_poll_status(&instance->poll_work.work); |
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return ret; |
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} |
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/* CM_REQUEST_CARD_DATA_GET times out, so no show attribute */ |
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static ssize_t adsl_config_store(struct device *dev, |
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struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct cxacru_data *instance = to_usbatm_driver_data( |
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to_usb_interface(dev)); |
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int len = strlen(buf); |
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int ret, pos, num; |
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__le32 data[CMD_PACKET_SIZE / 4]; |
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if (!capable(CAP_NET_ADMIN)) |
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return -EACCES; |
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if (instance == NULL) |
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return -ENODEV; |
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pos = 0; |
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num = 0; |
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while (pos < len) { |
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int tmp; |
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u32 index; |
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u32 value; |
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ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp); |
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if (ret < 2) |
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return -EINVAL; |
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if (index > 0x7f) |
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return -EINVAL; |
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if (tmp < 0 || tmp > len - pos) |
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return -EINVAL; |
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pos += tmp; |
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|
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/* skip trailing newline */ |
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if (buf[pos] == '\n' && pos == len-1) |
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pos++; |
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data[num * 2 + 1] = cpu_to_le32(index); |
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data[num * 2 + 2] = cpu_to_le32(value); |
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num++; |
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|
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/* send config values when data buffer is full |
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* or no more data |
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*/ |
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if (pos >= len || num >= CMD_MAX_CONFIG) { |
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char log[CMD_MAX_CONFIG * 12 + 1]; /* %02x=%08x */ |
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data[0] = cpu_to_le32(num); |
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ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET, |
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(u8 *) data, 4 + num * 8, NULL, 0); |
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if (ret < 0) { |
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atm_err(instance->usbatm, |
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"set card data returned %d\n", ret); |
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return -EIO; |
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} |
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for (tmp = 0; tmp < num; tmp++) |
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snprintf(log + tmp*12, 13, " %02x=%08x", |
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le32_to_cpu(data[tmp * 2 + 1]), |
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le32_to_cpu(data[tmp * 2 + 2])); |
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atm_info(instance->usbatm, "config%s\n", log); |
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num = 0; |
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} |
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} |
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|
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return len; |
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} |
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|
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/* |
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* All device attributes are included in CXACRU_ALL_FILES |
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* so that the same list can be used multiple times: |
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* INIT (define the device attributes) |
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* CREATE (create all the device files) |
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* REMOVE (remove all the device files) |
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* |
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* With the last two being defined as needed in the functions |
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* they are used in before calling CXACRU_ALL_FILES() |
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*/ |
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#define CXACRU_ALL_FILES(_action) \ |
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CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE, u32, downstream_rate); \ |
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CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE, u32, upstream_rate); \ |
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CXACRU_ATTR_##_action(CXINF_LINK_STATUS, LINK, link_status); \ |
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CXACRU_ATTR_##_action(CXINF_LINE_STATUS, LINE, line_status); \ |
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CXACRU__ATTR_##_action( mac_address); \ |
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CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN, dB, upstream_snr_margin); \ |
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CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN, dB, downstream_snr_margin); \ |
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CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION, dB, upstream_attenuation); \ |
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CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION, dB, downstream_attenuation); \ |
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CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER, s8, transmitter_power); \ |
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CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME, u32, upstream_bits_per_frame); \ |
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CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32, downstream_bits_per_frame); \ |
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CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS, u32, startup_attempts); \ |
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CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS, u32, upstream_crc_errors); \ |
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CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_CRC_ERRORS, u32, downstream_crc_errors); \ |
|
CXACRU_ATTR_##_action(CXINF_UPSTREAM_FEC_ERRORS, u32, upstream_fec_errors); \ |
|
CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_FEC_ERRORS, u32, downstream_fec_errors); \ |
|
CXACRU_ATTR_##_action(CXINF_UPSTREAM_HEC_ERRORS, u32, upstream_hec_errors); \ |
|
CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_HEC_ERRORS, u32, downstream_hec_errors); \ |
|
CXACRU_ATTR_##_action(CXINF_LINE_STARTABLE, bool, line_startable); \ |
|
CXACRU_ATTR_##_action(CXINF_MODULATION, MODU, modulation); \ |
|
CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND, u32, adsl_headend); \ |
|
CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT, u32, adsl_headend_environment); \ |
|
CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION, u32, adsl_controller_version); \ |
|
CXACRU_CMD_##_action( adsl_state); \ |
|
CXACRU_SET_##_action( adsl_config); |
|
|
|
CXACRU_ALL_FILES(INIT); |
|
|
|
static struct attribute *cxacru_attrs[] = { |
|
&dev_attr_adsl_config.attr, |
|
&dev_attr_adsl_state.attr, |
|
&dev_attr_adsl_controller_version.attr, |
|
&dev_attr_adsl_headend_environment.attr, |
|
&dev_attr_adsl_headend.attr, |
|
&dev_attr_modulation.attr, |
|
&dev_attr_line_startable.attr, |
|
&dev_attr_downstream_hec_errors.attr, |
|
&dev_attr_upstream_hec_errors.attr, |
|
&dev_attr_downstream_fec_errors.attr, |
|
&dev_attr_upstream_fec_errors.attr, |
|
&dev_attr_downstream_crc_errors.attr, |
|
&dev_attr_upstream_crc_errors.attr, |
|
&dev_attr_startup_attempts.attr, |
|
&dev_attr_downstream_bits_per_frame.attr, |
|
&dev_attr_upstream_bits_per_frame.attr, |
|
&dev_attr_transmitter_power.attr, |
|
&dev_attr_downstream_attenuation.attr, |
|
&dev_attr_upstream_attenuation.attr, |
|
&dev_attr_downstream_snr_margin.attr, |
|
&dev_attr_upstream_snr_margin.attr, |
|
&dev_attr_mac_address.attr, |
|
&dev_attr_line_status.attr, |
|
&dev_attr_link_status.attr, |
|
&dev_attr_upstream_rate.attr, |
|
&dev_attr_downstream_rate.attr, |
|
NULL, |
|
}; |
|
ATTRIBUTE_GROUPS(cxacru); |
|
|
|
/* the following three functions are stolen from drivers/usb/core/message.c */ |
|
static void cxacru_blocking_completion(struct urb *urb) |
|
{ |
|
complete(urb->context); |
|
} |
|
|
|
struct cxacru_timer { |
|
struct timer_list timer; |
|
struct urb *urb; |
|
}; |
|
|
|
static void cxacru_timeout_kill(struct timer_list *t) |
|
{ |
|
struct cxacru_timer *timer = from_timer(timer, t, timer); |
|
|
|
usb_unlink_urb(timer->urb); |
|
} |
|
|
|
static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, |
|
int *actual_length) |
|
{ |
|
struct cxacru_timer timer = { |
|
.urb = urb, |
|
}; |
|
|
|
timer_setup_on_stack(&timer.timer, cxacru_timeout_kill, 0); |
|
mod_timer(&timer.timer, jiffies + msecs_to_jiffies(CMD_TIMEOUT)); |
|
wait_for_completion(done); |
|
del_timer_sync(&timer.timer); |
|
destroy_timer_on_stack(&timer.timer); |
|
|
|
if (actual_length) |
|
*actual_length = urb->actual_length; |
|
return urb->status; /* must read status after completion */ |
|
} |
|
|
|
static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, |
|
u8 *wdata, int wsize, u8 *rdata, int rsize) |
|
{ |
|
int ret, actlen; |
|
int offb, offd; |
|
const int stride = CMD_PACKET_SIZE - 4; |
|
u8 *wbuf = instance->snd_buf; |
|
u8 *rbuf = instance->rcv_buf; |
|
int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE; |
|
int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE; |
|
|
|
if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "requested transfer size too large (%d, %d)\n", |
|
wbuflen, rbuflen); |
|
ret = -ENOMEM; |
|
goto err; |
|
} |
|
|
|
mutex_lock(&instance->cm_serialize); |
|
|
|
/* submit reading urb before the writing one */ |
|
init_completion(&instance->rcv_done); |
|
ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL); |
|
if (ret < 0) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "submit of read urb for cm %#x failed (%d)\n", |
|
cm, ret); |
|
goto fail; |
|
} |
|
|
|
memset(wbuf, 0, wbuflen); |
|
/* handle wsize == 0 */ |
|
wbuf[0] = cm; |
|
for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) { |
|
wbuf[offb] = cm; |
|
memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd)); |
|
} |
|
|
|
instance->snd_urb->transfer_buffer_length = wbuflen; |
|
init_completion(&instance->snd_done); |
|
ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL); |
|
if (ret < 0) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "submit of write urb for cm %#x failed (%d)\n", |
|
cm, ret); |
|
goto fail; |
|
} |
|
|
|
ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL); |
|
if (ret < 0) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "send of cm %#x failed (%d)\n", cm, ret); |
|
goto fail; |
|
} |
|
|
|
ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen); |
|
if (ret < 0) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "receive of cm %#x failed (%d)\n", cm, ret); |
|
goto fail; |
|
} |
|
if (actlen % CMD_PACKET_SIZE || !actlen) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "invalid response length to cm %#x: %d\n", |
|
cm, actlen); |
|
ret = -EIO; |
|
goto fail; |
|
} |
|
|
|
/* check the return status and copy the data to the output buffer, if needed */ |
|
for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) { |
|
if (rbuf[offb] != cm) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "wrong cm %#x in response to cm %#x\n", |
|
rbuf[offb], cm); |
|
ret = -EIO; |
|
goto fail; |
|
} |
|
if (rbuf[offb + 1] != CM_STATUS_SUCCESS) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "response to cm %#x failed: %#x\n", |
|
cm, rbuf[offb + 1]); |
|
ret = -EIO; |
|
goto fail; |
|
} |
|
if (offd >= rsize) |
|
break; |
|
memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd)); |
|
offd += stride; |
|
} |
|
|
|
ret = offd; |
|
usb_dbg(instance->usbatm, "cm %#x\n", cm); |
|
fail: |
|
mutex_unlock(&instance->cm_serialize); |
|
err: |
|
return ret; |
|
} |
|
|
|
static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm, |
|
u32 *data, int size) |
|
{ |
|
int ret, len; |
|
__le32 *buf; |
|
int offb; |
|
unsigned int offd; |
|
const int stride = CMD_PACKET_SIZE / (4 * 2) - 1; |
|
int buflen = ((size - 1) / stride + 1 + size * 2) * 4; |
|
|
|
buf = kmalloc(buflen, GFP_KERNEL); |
|
if (!buf) |
|
return -ENOMEM; |
|
|
|
ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen); |
|
if (ret < 0) |
|
goto cleanup; |
|
|
|
/* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */ |
|
len = ret / 4; |
|
for (offb = 0; offb < len; ) { |
|
int l = le32_to_cpu(buf[offb++]); |
|
|
|
if (l < 0 || l > stride || l > (len - offb) / 2) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "invalid data length from cm %#x: %d\n", |
|
cm, l); |
|
ret = -EIO; |
|
goto cleanup; |
|
} |
|
while (l--) { |
|
offd = le32_to_cpu(buf[offb++]); |
|
if (offd >= size) { |
|
if (printk_ratelimit()) |
|
usb_err(instance->usbatm, "wrong index %#x in response to cm %#x\n", |
|
offd, cm); |
|
ret = -EIO; |
|
goto cleanup; |
|
} |
|
data[offd] = le32_to_cpu(buf[offb++]); |
|
} |
|
} |
|
|
|
ret = 0; |
|
|
|
cleanup: |
|
kfree(buf); |
|
return ret; |
|
} |
|
|
|
static int cxacru_card_status(struct cxacru_data *instance) |
|
{ |
|
int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); |
|
|
|
if (ret < 0) { /* firmware not loaded */ |
|
usb_dbg(instance->usbatm, "cxacru_adsl_start: CARD_GET_STATUS returned %d\n", ret); |
|
return ret; |
|
} |
|
return 0; |
|
} |
|
|
|
static int cxacru_atm_start(struct usbatm_data *usbatm_instance, |
|
struct atm_dev *atm_dev) |
|
{ |
|
struct cxacru_data *instance = usbatm_instance->driver_data; |
|
struct usb_interface *intf = usbatm_instance->usb_intf; |
|
int ret; |
|
int start_polling = 1; |
|
|
|
dev_dbg(&intf->dev, "%s\n", __func__); |
|
|
|
/* Read MAC address */ |
|
ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0, |
|
atm_dev->esi, sizeof(atm_dev->esi)); |
|
if (ret < 0) { |
|
atm_err(usbatm_instance, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret); |
|
return ret; |
|
} |
|
|
|
/* start ADSL */ |
|
mutex_lock(&instance->adsl_state_serialize); |
|
ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); |
|
if (ret < 0) |
|
atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret); |
|
|
|
/* Start status polling */ |
|
mutex_lock(&instance->poll_state_serialize); |
|
switch (instance->poll_state) { |
|
case CXPOLL_STOPPED: |
|
/* start polling */ |
|
instance->poll_state = CXPOLL_POLLING; |
|
break; |
|
|
|
case CXPOLL_STOPPING: |
|
/* abort stop request */ |
|
instance->poll_state = CXPOLL_POLLING; |
|
fallthrough; |
|
case CXPOLL_POLLING: |
|
case CXPOLL_SHUTDOWN: |
|
/* don't start polling */ |
|
start_polling = 0; |
|
} |
|
mutex_unlock(&instance->poll_state_serialize); |
|
mutex_unlock(&instance->adsl_state_serialize); |
|
|
|
if (start_polling) |
|
cxacru_poll_status(&instance->poll_work.work); |
|
return 0; |
|
} |
|
|
|
static void cxacru_poll_status(struct work_struct *work) |
|
{ |
|
struct cxacru_data *instance = |
|
container_of(work, struct cxacru_data, poll_work.work); |
|
u32 buf[CXINF_MAX] = {}; |
|
struct usbatm_data *usbatm = instance->usbatm; |
|
struct atm_dev *atm_dev = usbatm->atm_dev; |
|
int keep_polling = 1; |
|
int ret; |
|
|
|
ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX); |
|
if (ret < 0) { |
|
if (ret != -ESHUTDOWN) |
|
atm_warn(usbatm, "poll status: error %d\n", ret); |
|
|
|
mutex_lock(&instance->poll_state_serialize); |
|
if (instance->poll_state != CXPOLL_SHUTDOWN) { |
|
instance->poll_state = CXPOLL_STOPPED; |
|
|
|
if (ret != -ESHUTDOWN) |
|
atm_warn(usbatm, "polling disabled, set adsl_state" |
|
" to 'start' or 'poll' to resume\n"); |
|
} |
|
mutex_unlock(&instance->poll_state_serialize); |
|
goto reschedule; |
|
} |
|
|
|
memcpy(instance->card_info, buf, sizeof(instance->card_info)); |
|
|
|
if (instance->adsl_status != buf[CXINF_LINE_STARTABLE]) { |
|
instance->adsl_status = buf[CXINF_LINE_STARTABLE]; |
|
|
|
switch (instance->adsl_status) { |
|
case 0: |
|
atm_info(usbatm, "ADSL state: running\n"); |
|
break; |
|
|
|
case 1: |
|
atm_info(usbatm, "ADSL state: stopped\n"); |
|
break; |
|
|
|
default: |
|
atm_info(usbatm, "Unknown adsl status %02x\n", instance->adsl_status); |
|
break; |
|
} |
|
} |
|
|
|
if (instance->line_status == buf[CXINF_LINE_STATUS]) |
|
goto reschedule; |
|
|
|
instance->line_status = buf[CXINF_LINE_STATUS]; |
|
switch (instance->line_status) { |
|
case 0: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST); |
|
atm_info(usbatm, "ADSL line: down\n"); |
|
break; |
|
|
|
case 1: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST); |
|
atm_info(usbatm, "ADSL line: attempting to activate\n"); |
|
break; |
|
|
|
case 2: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST); |
|
atm_info(usbatm, "ADSL line: training\n"); |
|
break; |
|
|
|
case 3: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST); |
|
atm_info(usbatm, "ADSL line: channel analysis\n"); |
|
break; |
|
|
|
case 4: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST); |
|
atm_info(usbatm, "ADSL line: exchange\n"); |
|
break; |
|
|
|
case 5: |
|
atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424; |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_FOUND); |
|
|
|
atm_info(usbatm, "ADSL line: up (%d kb/s down | %d kb/s up)\n", |
|
buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]); |
|
break; |
|
|
|
case 6: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST); |
|
atm_info(usbatm, "ADSL line: waiting\n"); |
|
break; |
|
|
|
case 7: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_LOST); |
|
atm_info(usbatm, "ADSL line: initializing\n"); |
|
break; |
|
|
|
default: |
|
atm_dev_signal_change(atm_dev, ATM_PHY_SIG_UNKNOWN); |
|
atm_info(usbatm, "Unknown line state %02x\n", instance->line_status); |
|
break; |
|
} |
|
reschedule: |
|
|
|
mutex_lock(&instance->poll_state_serialize); |
|
if (instance->poll_state == CXPOLL_STOPPING && |
|
instance->adsl_status == 1 && /* stopped */ |
|
instance->line_status == 0) /* down */ |
|
instance->poll_state = CXPOLL_STOPPED; |
|
|
|
if (instance->poll_state == CXPOLL_STOPPED) |
|
keep_polling = 0; |
|
mutex_unlock(&instance->poll_state_serialize); |
|
|
|
if (keep_polling) |
|
schedule_delayed_work(&instance->poll_work, |
|
round_jiffies_relative(POLL_INTERVAL*HZ)); |
|
} |
|
|
|
static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw, |
|
u8 code1, u8 code2, u32 addr, const u8 *data, int size) |
|
{ |
|
int ret; |
|
u8 *buf; |
|
int offd, offb; |
|
const int stride = CMD_PACKET_SIZE - 8; |
|
|
|
buf = (u8 *) __get_free_page(GFP_KERNEL); |
|
if (!buf) |
|
return -ENOMEM; |
|
|
|
offb = offd = 0; |
|
do { |
|
int l = min_t(int, stride, size - offd); |
|
|
|
buf[offb++] = fw; |
|
buf[offb++] = l; |
|
buf[offb++] = code1; |
|
buf[offb++] = code2; |
|
put_unaligned(cpu_to_le32(addr), (__le32 *)(buf + offb)); |
|
offb += 4; |
|
addr += l; |
|
if (l) |
|
memcpy(buf + offb, data + offd, l); |
|
if (l < stride) |
|
memset(buf + offb + l, 0, stride - l); |
|
offb += stride; |
|
offd += stride; |
|
if ((offb >= PAGE_SIZE) || (offd >= size)) { |
|
ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD), |
|
buf, offb, NULL, CMD_TIMEOUT); |
|
if (ret < 0) { |
|
dev_dbg(&usb_dev->dev, "sending fw %#x failed\n", fw); |
|
goto cleanup; |
|
} |
|
offb = 0; |
|
} |
|
} while (offd < size); |
|
dev_dbg(&usb_dev->dev, "sent fw %#x\n", fw); |
|
|
|
ret = 0; |
|
|
|
cleanup: |
|
free_page((unsigned long) buf); |
|
return ret; |
|
} |
|
|
|
static void cxacru_upload_firmware(struct cxacru_data *instance, |
|
const struct firmware *fw, |
|
const struct firmware *bp) |
|
{ |
|
int ret; |
|
struct usbatm_data *usbatm = instance->usbatm; |
|
struct usb_device *usb_dev = usbatm->usb_dev; |
|
__le16 signature[] = { usb_dev->descriptor.idVendor, |
|
usb_dev->descriptor.idProduct }; |
|
__le32 val; |
|
|
|
usb_dbg(usbatm, "%s\n", __func__); |
|
|
|
/* FirmwarePllFClkValue */ |
|
val = cpu_to_le32(instance->modem_type->pll_f_clk); |
|
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLFCLK_ADDR, (u8 *) &val, 4); |
|
if (ret) { |
|
usb_err(usbatm, "FirmwarePllFClkValue failed: %d\n", ret); |
|
return; |
|
} |
|
|
|
/* FirmwarePllBClkValue */ |
|
val = cpu_to_le32(instance->modem_type->pll_b_clk); |
|
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLBCLK_ADDR, (u8 *) &val, 4); |
|
if (ret) { |
|
usb_err(usbatm, "FirmwarePllBClkValue failed: %d\n", ret); |
|
return; |
|
} |
|
|
|
/* Enable SDRAM */ |
|
val = cpu_to_le32(SDRAM_ENA); |
|
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SDRAMEN_ADDR, (u8 *) &val, 4); |
|
if (ret) { |
|
usb_err(usbatm, "Enable SDRAM failed: %d\n", ret); |
|
return; |
|
} |
|
|
|
/* Firmware */ |
|
usb_info(usbatm, "loading firmware\n"); |
|
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size); |
|
if (ret) { |
|
usb_err(usbatm, "Firmware upload failed: %d\n", ret); |
|
return; |
|
} |
|
|
|
/* Boot ROM patch */ |
|
if (instance->modem_type->boot_rom_patch) { |
|
usb_info(usbatm, "loading boot ROM patch\n"); |
|
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size); |
|
if (ret) { |
|
usb_err(usbatm, "Boot ROM patching failed: %d\n", ret); |
|
return; |
|
} |
|
} |
|
|
|
/* Signature */ |
|
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SIG_ADDR, (u8 *) signature, 4); |
|
if (ret) { |
|
usb_err(usbatm, "Signature storing failed: %d\n", ret); |
|
return; |
|
} |
|
|
|
usb_info(usbatm, "starting device\n"); |
|
if (instance->modem_type->boot_rom_patch) { |
|
val = cpu_to_le32(BR_ADDR); |
|
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4); |
|
} else { |
|
ret = cxacru_fw(usb_dev, FW_GOTO_MEM, 0x0, 0x0, FW_ADDR, NULL, 0); |
|
} |
|
if (ret) { |
|
usb_err(usbatm, "Passing control to firmware failed: %d\n", ret); |
|
return; |
|
} |
|
|
|
/* Delay to allow firmware to start up. */ |
|
msleep_interruptible(1000); |
|
|
|
usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD)); |
|
usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD)); |
|
usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_DATA)); |
|
usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_DATA)); |
|
|
|
ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); |
|
if (ret < 0) { |
|
usb_err(usbatm, "modem failed to initialize: %d\n", ret); |
|
return; |
|
} |
|
} |
|
|
|
static int cxacru_find_firmware(struct cxacru_data *instance, |
|
char *phase, const struct firmware **fw_p) |
|
{ |
|
struct usbatm_data *usbatm = instance->usbatm; |
|
struct device *dev = &usbatm->usb_intf->dev; |
|
char buf[16]; |
|
|
|
sprintf(buf, "cxacru-%s.bin", phase); |
|
usb_dbg(usbatm, "cxacru_find_firmware: looking for %s\n", buf); |
|
|
|
if (request_firmware(fw_p, buf, dev)) { |
|
usb_dbg(usbatm, "no stage %s firmware found\n", phase); |
|
return -ENOENT; |
|
} |
|
|
|
usb_info(usbatm, "found firmware %s\n", buf); |
|
|
|
return 0; |
|
} |
|
|
|
static int cxacru_heavy_init(struct usbatm_data *usbatm_instance, |
|
struct usb_interface *usb_intf) |
|
{ |
|
const struct firmware *fw, *bp; |
|
struct cxacru_data *instance = usbatm_instance->driver_data; |
|
int ret = cxacru_find_firmware(instance, "fw", &fw); |
|
|
|
if (ret) { |
|
usb_warn(usbatm_instance, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n"); |
|
return ret; |
|
} |
|
|
|
if (instance->modem_type->boot_rom_patch) { |
|
ret = cxacru_find_firmware(instance, "bp", &bp); |
|
if (ret) { |
|
usb_warn(usbatm_instance, "boot ROM patch (cxacru-bp.bin) unavailable (system misconfigured?)\n"); |
|
release_firmware(fw); |
|
return ret; |
|
} |
|
} |
|
|
|
cxacru_upload_firmware(instance, fw, bp); |
|
|
|
if (instance->modem_type->boot_rom_patch) |
|
release_firmware(bp); |
|
release_firmware(fw); |
|
|
|
ret = cxacru_card_status(instance); |
|
if (ret) |
|
usb_dbg(usbatm_instance, "modem initialisation failed\n"); |
|
else |
|
usb_dbg(usbatm_instance, "done setting up the modem\n"); |
|
|
|
return ret; |
|
} |
|
|
|
static int cxacru_bind(struct usbatm_data *usbatm_instance, |
|
struct usb_interface *intf, const struct usb_device_id *id) |
|
{ |
|
struct cxacru_data *instance; |
|
struct usb_device *usb_dev = interface_to_usbdev(intf); |
|
struct usb_host_endpoint *cmd_ep = usb_dev->ep_in[CXACRU_EP_CMD]; |
|
int ret; |
|
|
|
/* instance init */ |
|
instance = kzalloc(sizeof(*instance), GFP_KERNEL); |
|
if (!instance) |
|
return -ENOMEM; |
|
|
|
instance->usbatm = usbatm_instance; |
|
instance->modem_type = (struct cxacru_modem_type *) id->driver_info; |
|
|
|
mutex_init(&instance->poll_state_serialize); |
|
instance->poll_state = CXPOLL_STOPPED; |
|
instance->line_status = -1; |
|
instance->adsl_status = -1; |
|
|
|
mutex_init(&instance->adsl_state_serialize); |
|
|
|
instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL); |
|
if (!instance->rcv_buf) { |
|
usb_dbg(usbatm_instance, "cxacru_bind: no memory for rcv_buf\n"); |
|
ret = -ENOMEM; |
|
goto fail; |
|
} |
|
instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL); |
|
if (!instance->snd_buf) { |
|
usb_dbg(usbatm_instance, "cxacru_bind: no memory for snd_buf\n"); |
|
ret = -ENOMEM; |
|
goto fail; |
|
} |
|
instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL); |
|
if (!instance->rcv_urb) { |
|
ret = -ENOMEM; |
|
goto fail; |
|
} |
|
instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL); |
|
if (!instance->snd_urb) { |
|
ret = -ENOMEM; |
|
goto fail; |
|
} |
|
|
|
if (!cmd_ep) { |
|
usb_dbg(usbatm_instance, "cxacru_bind: no command endpoint\n"); |
|
ret = -ENODEV; |
|
goto fail; |
|
} |
|
|
|
if ((cmd_ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
|
== USB_ENDPOINT_XFER_INT) { |
|
usb_fill_int_urb(instance->rcv_urb, |
|
usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD), |
|
instance->rcv_buf, PAGE_SIZE, |
|
cxacru_blocking_completion, &instance->rcv_done, 1); |
|
|
|
usb_fill_int_urb(instance->snd_urb, |
|
usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD), |
|
instance->snd_buf, PAGE_SIZE, |
|
cxacru_blocking_completion, &instance->snd_done, 4); |
|
} else { |
|
usb_fill_bulk_urb(instance->rcv_urb, |
|
usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD), |
|
instance->rcv_buf, PAGE_SIZE, |
|
cxacru_blocking_completion, &instance->rcv_done); |
|
|
|
usb_fill_bulk_urb(instance->snd_urb, |
|
usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD), |
|
instance->snd_buf, PAGE_SIZE, |
|
cxacru_blocking_completion, &instance->snd_done); |
|
} |
|
|
|
mutex_init(&instance->cm_serialize); |
|
|
|
INIT_DELAYED_WORK(&instance->poll_work, cxacru_poll_status); |
|
|
|
usbatm_instance->driver_data = instance; |
|
|
|
usbatm_instance->flags = (cxacru_card_status(instance) ? 0 : UDSL_SKIP_HEAVY_INIT); |
|
|
|
return 0; |
|
|
|
fail: |
|
free_page((unsigned long) instance->snd_buf); |
|
free_page((unsigned long) instance->rcv_buf); |
|
usb_free_urb(instance->snd_urb); |
|
usb_free_urb(instance->rcv_urb); |
|
kfree(instance); |
|
|
|
return ret; |
|
} |
|
|
|
static void cxacru_unbind(struct usbatm_data *usbatm_instance, |
|
struct usb_interface *intf) |
|
{ |
|
struct cxacru_data *instance = usbatm_instance->driver_data; |
|
int is_polling = 1; |
|
|
|
usb_dbg(usbatm_instance, "cxacru_unbind entered\n"); |
|
|
|
if (!instance) { |
|
usb_dbg(usbatm_instance, "cxacru_unbind: NULL instance!\n"); |
|
return; |
|
} |
|
|
|
mutex_lock(&instance->poll_state_serialize); |
|
BUG_ON(instance->poll_state == CXPOLL_SHUTDOWN); |
|
|
|
/* ensure that status polling continues unless |
|
* it has already stopped */ |
|
if (instance->poll_state == CXPOLL_STOPPED) |
|
is_polling = 0; |
|
|
|
/* stop polling from being stopped or started */ |
|
instance->poll_state = CXPOLL_SHUTDOWN; |
|
mutex_unlock(&instance->poll_state_serialize); |
|
|
|
if (is_polling) |
|
cancel_delayed_work_sync(&instance->poll_work); |
|
|
|
usb_kill_urb(instance->snd_urb); |
|
usb_kill_urb(instance->rcv_urb); |
|
usb_free_urb(instance->snd_urb); |
|
usb_free_urb(instance->rcv_urb); |
|
|
|
free_page((unsigned long) instance->snd_buf); |
|
free_page((unsigned long) instance->rcv_buf); |
|
|
|
kfree(instance); |
|
|
|
usbatm_instance->driver_data = NULL; |
|
} |
|
|
|
static const struct cxacru_modem_type cxacru_cafe = { |
|
.pll_f_clk = 0x02d874df, |
|
.pll_b_clk = 0x0196a51a, |
|
.boot_rom_patch = 1, |
|
}; |
|
|
|
static const struct cxacru_modem_type cxacru_cb00 = { |
|
.pll_f_clk = 0x5, |
|
.pll_b_clk = 0x3, |
|
.boot_rom_patch = 0, |
|
}; |
|
|
|
static const struct usb_device_id cxacru_usb_ids[] = { |
|
{ /* V = Conexant P = ADSL modem (Euphrates project) */ |
|
USB_DEVICE(0x0572, 0xcafe), .driver_info = (unsigned long) &cxacru_cafe |
|
}, |
|
{ /* V = Conexant P = ADSL modem (Hasbani project) */ |
|
USB_DEVICE(0x0572, 0xcb00), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Conexant P = ADSL modem */ |
|
USB_DEVICE(0x0572, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Conexant P = ADSL modem (Well PTI-800) */ |
|
USB_DEVICE(0x0572, 0xcb02), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Conexant P = ADSL modem */ |
|
USB_DEVICE(0x0572, 0xcb06), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Conexant P = ADSL modem (ZTE ZXDSL 852) */ |
|
USB_DEVICE(0x0572, 0xcb07), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Olitec P = ADSL modem version 2 */ |
|
USB_DEVICE(0x08e3, 0x0100), .driver_info = (unsigned long) &cxacru_cafe |
|
}, |
|
{ /* V = Olitec P = ADSL modem version 3 */ |
|
USB_DEVICE(0x08e3, 0x0102), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Trust/Amigo Technology Co. P = AMX-CA86U */ |
|
USB_DEVICE(0x0eb0, 0x3457), .driver_info = (unsigned long) &cxacru_cafe |
|
}, |
|
{ /* V = Zoom P = 5510 */ |
|
USB_DEVICE(0x1803, 0x5510), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Draytek P = Vigor 318 */ |
|
USB_DEVICE(0x0675, 0x0200), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Zyxel P = 630-C1 aka OMNI ADSL USB (Annex A) */ |
|
USB_DEVICE(0x0586, 0x330a), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Zyxel P = 630-C3 aka OMNI ADSL USB (Annex B) */ |
|
USB_DEVICE(0x0586, 0x330b), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Aethra P = Starmodem UM1020 */ |
|
USB_DEVICE(0x0659, 0x0020), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Aztech Systems P = ? AKA Pirelli AUA-010 */ |
|
USB_DEVICE(0x0509, 0x0812), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Netopia P = Cayman 3341(Annex A)/3351(Annex B) */ |
|
USB_DEVICE(0x100d, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{ /* V = Netopia P = Cayman 3342(Annex A)/3352(Annex B) */ |
|
USB_DEVICE(0x100d, 0x3342), .driver_info = (unsigned long) &cxacru_cb00 |
|
}, |
|
{} |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(usb, cxacru_usb_ids); |
|
|
|
static struct usbatm_driver cxacru_driver = { |
|
.driver_name = cxacru_driver_name, |
|
.bind = cxacru_bind, |
|
.heavy_init = cxacru_heavy_init, |
|
.unbind = cxacru_unbind, |
|
.atm_start = cxacru_atm_start, |
|
.bulk_in = CXACRU_EP_DATA, |
|
.bulk_out = CXACRU_EP_DATA, |
|
.rx_padding = 3, |
|
.tx_padding = 11, |
|
}; |
|
|
|
static int cxacru_usb_probe(struct usb_interface *intf, |
|
const struct usb_device_id *id) |
|
{ |
|
struct usb_device *usb_dev = interface_to_usbdev(intf); |
|
char buf[15]; |
|
|
|
/* Avoid ADSL routers (cx82310_eth). |
|
* Abort if bDeviceClass is 0xff and iProduct is "USB NET CARD". |
|
*/ |
|
if (usb_dev->descriptor.bDeviceClass == USB_CLASS_VENDOR_SPEC |
|
&& usb_string(usb_dev, usb_dev->descriptor.iProduct, |
|
buf, sizeof(buf)) > 0) { |
|
if (!strcmp(buf, "USB NET CARD")) { |
|
dev_info(&intf->dev, "ignoring cx82310_eth device\n"); |
|
return -ENODEV; |
|
} |
|
} |
|
|
|
return usbatm_usb_probe(intf, id, &cxacru_driver); |
|
} |
|
|
|
static struct usb_driver cxacru_usb_driver = { |
|
.name = cxacru_driver_name, |
|
.probe = cxacru_usb_probe, |
|
.disconnect = usbatm_usb_disconnect, |
|
.id_table = cxacru_usb_ids, |
|
.dev_groups = cxacru_groups, |
|
}; |
|
|
|
module_usb_driver(cxacru_usb_driver); |
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR); |
|
MODULE_DESCRIPTION(DRIVER_DESC); |
|
MODULE_LICENSE("GPL");
|
|
|