![Wolfram Sang](/assets/img/avatar_default.png)
All kmalloc-based functions print enough information on failures. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1384 lines
39 KiB
C
1384 lines
39 KiB
C
/******************************************************************************
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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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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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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_VERSION "0.4"
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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(_name, S_IRUGO, cxacru_sysfs_show_##_name, NULL)
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#define CXACRU_CMD_INIT(_name) \
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static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, \
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cxacru_sysfs_show_##_name, cxacru_sysfs_store_##_name)
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#define CXACRU_SET_INIT(_name) \
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static DEVICE_ATTR(_name, S_IWUSR, \
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NULL, cxacru_sysfs_store_##_name)
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#define CXACRU_ATTR_INIT(_value, _type, _name) \
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static ssize_t cxacru_sysfs_show_##_name(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 snprintf(buf, PAGE_SIZE, "%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 snprintf(buf, PAGE_SIZE, "%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 snprintf(buf, PAGE_SIZE, "%u\n", value);
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return snprintf(buf, PAGE_SIZE, "%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 snprintf(buf, PAGE_SIZE, "%u\n", value);
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return snprintf(buf, PAGE_SIZE, "%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 snprintf(buf, PAGE_SIZE, "%u\n", value);
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return snprintf(buf, PAGE_SIZE, "%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 snprintf(buf, PAGE_SIZE, "%u\n", value);
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return snprintf(buf, PAGE_SIZE, "%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 cxacru_sysfs_show_mac_address(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 snprintf(buf, PAGE_SIZE, "%pM\n",
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instance->usbatm->atm_dev->esi);
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}
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static ssize_t cxacru_sysfs_show_adsl_state(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 snprintf(buf, PAGE_SIZE, "%u\n", value);
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return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
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}
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static ssize_t cxacru_sysfs_store_adsl_state(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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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 cxacru_sysfs_store_adsl_config(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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|
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if (!capable(CAP_NET_ADMIN))
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return -EACCES;
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|
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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 < 0 || index > 0x7f)
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return -EINVAL;
|
|
if (tmp < 0 || tmp > len - pos)
|
|
return -EINVAL;
|
|
pos += tmp;
|
|
|
|
/* skip trailing newline */
|
|
if (buf[pos] == '\n' && pos == len-1)
|
|
pos++;
|
|
|
|
data[num * 2 + 1] = cpu_to_le32(index);
|
|
data[num * 2 + 2] = cpu_to_le32(value);
|
|
num++;
|
|
|
|
/* send config values when data buffer is full
|
|
* or no more data
|
|
*/
|
|
if (pos >= len || num >= CMD_MAX_CONFIG) {
|
|
char log[CMD_MAX_CONFIG * 12 + 1]; /* %02x=%08x */
|
|
|
|
data[0] = cpu_to_le32(num);
|
|
ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET,
|
|
(u8 *) data, 4 + num * 8, NULL, 0);
|
|
if (ret < 0) {
|
|
atm_err(instance->usbatm,
|
|
"set card data returned %d\n", ret);
|
|
return -EIO;
|
|
}
|
|
|
|
for (tmp = 0; tmp < num; tmp++)
|
|
snprintf(log + tmp*12, 13, " %02x=%08x",
|
|
le32_to_cpu(data[tmp * 2 + 1]),
|
|
le32_to_cpu(data[tmp * 2 + 2]));
|
|
atm_info(instance->usbatm, "config%s\n", log);
|
|
num = 0;
|
|
}
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/*
|
|
* All device attributes are included in CXACRU_ALL_FILES
|
|
* so that the same list can be used multiple times:
|
|
* INIT (define the device attributes)
|
|
* CREATE (create all the device files)
|
|
* REMOVE (remove all the device files)
|
|
*
|
|
* With the last two being defined as needed in the functions
|
|
* they are used in before calling CXACRU_ALL_FILES()
|
|
*/
|
|
#define CXACRU_ALL_FILES(_action) \
|
|
CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE, u32, downstream_rate); \
|
|
CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE, u32, upstream_rate); \
|
|
CXACRU_ATTR_##_action(CXINF_LINK_STATUS, LINK, link_status); \
|
|
CXACRU_ATTR_##_action(CXINF_LINE_STATUS, LINE, line_status); \
|
|
CXACRU__ATTR_##_action( mac_address); \
|
|
CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN, dB, upstream_snr_margin); \
|
|
CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN, dB, downstream_snr_margin); \
|
|
CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION, dB, upstream_attenuation); \
|
|
CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION, dB, downstream_attenuation); \
|
|
CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER, s8, transmitter_power); \
|
|
CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME, u32, upstream_bits_per_frame); \
|
|
CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32, downstream_bits_per_frame); \
|
|
CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS, u32, startup_attempts); \
|
|
CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS, u32, upstream_crc_errors); \
|
|
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);
|
|
|
|
/* the following three functions are stolen from drivers/usb/core/message.c */
|
|
static void cxacru_blocking_completion(struct urb *urb)
|
|
{
|
|
complete(urb->context);
|
|
}
|
|
|
|
static void cxacru_timeout_kill(unsigned long data)
|
|
{
|
|
usb_unlink_urb((struct urb *) data);
|
|
}
|
|
|
|
static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
|
|
int *actual_length)
|
|
{
|
|
struct timer_list timer;
|
|
|
|
init_timer(&timer);
|
|
timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT);
|
|
timer.data = (unsigned long) urb;
|
|
timer.function = cxacru_timeout_kill;
|
|
add_timer(&timer);
|
|
wait_for_completion(done);
|
|
del_timer_sync(&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 void cxacru_remove_device_files(struct usbatm_data *usbatm_instance,
|
|
struct atm_dev *atm_dev)
|
|
{
|
|
struct usb_interface *intf = usbatm_instance->usb_intf;
|
|
|
|
#define CXACRU_DEVICE_REMOVE_FILE(_name) \
|
|
device_remove_file(&intf->dev, &dev_attr_##_name);
|
|
CXACRU_ALL_FILES(REMOVE);
|
|
#undef CXACRU_DEVICE_REMOVE_FILE
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
#define CXACRU_DEVICE_CREATE_FILE(_name) \
|
|
ret = device_create_file(&intf->dev, &dev_attr_##_name); \
|
|
if (unlikely(ret)) \
|
|
goto fail_sysfs;
|
|
CXACRU_ALL_FILES(CREATE);
|
|
#undef CXACRU_DEVICE_CREATE_FILE
|
|
|
|
/* 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;
|
|
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);
|
|
|
|
printk(KERN_INFO "%s%d: %s %pM\n", atm_dev->type, atm_dev->number,
|
|
usbatm_instance->description, atm_dev->esi);
|
|
|
|
if (start_polling)
|
|
cxacru_poll_status(&instance->poll_work.work);
|
|
return 0;
|
|
|
|
fail_sysfs:
|
|
usb_err(usbatm_instance, "cxacru_atm_start: device_create_file failed (%d)\n", ret);
|
|
cxacru_remove_device_files(usbatm_instance, atm_dev);
|
|
return ret;
|
|
}
|
|
|
|
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_printk(KERN_INFO, usbatm, "ADSL state: running\n");
|
|
break;
|
|
|
|
case 1:
|
|
atm_printk(KERN_INFO, usbatm, "ADSL state: stopped\n");
|
|
break;
|
|
|
|
default:
|
|
atm_printk(KERN_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,
|
|
.atm_stop = cxacru_remove_device_files,
|
|
.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
|
|
};
|
|
|
|
module_usb_driver(cxacru_usb_driver);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION(DRIVER_VERSION);
|