Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-08 21:21:47 +00:00
Code Issues Packages Projects Releases Wiki Activity
6b495f4c5a
linux/drivers/usb/atm/cxacru.c
Greg Kroah-Hartman 75318d2d7c [PATCH] USB: remove .owner field from struct usb_driver 
It is no longer needed, so let's remove it, saving a bit of memory.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 13:48:34 -08:00

879 lines
23 KiB
C
Raw Blame History

/******************************************************************************
* cxacru.c - driver for USB ADSL modems based on
* Conexant AccessRunner chipset
*
* Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan
* Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
******************************************************************************/
/*
* Credit is due for Josep Comas, who created the original patch to speedtch.c
* to support the different padding used by the AccessRunner (now generalized
* into usbatm), and the userspace firmware loading utility.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/device.h> /* FIXME: linux/firmware.h should include it itself */
#include <linux/firmware.h>
#include "usbatm.h"
#define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands"
#define DRIVER_VERSION "0.2"
#define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver"
static const char cxacru_driver_name[] = "cxacru";
#define CXACRU_EP_CMD 0x01 /* Bulk/interrupt in/out */
#define CXACRU_EP_DATA 0x02 /* Bulk in/out */
#define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */
/* Addresses */
#define PLLFCLK_ADDR 0x00350068
#define PLLBCLK_ADDR 0x0035006c
#define SDRAMEN_ADDR 0x00350010
#define FW_ADDR 0x00801000
#define BR_ADDR 0x00180600
#define SIG_ADDR 0x00180500
#define BR_STACK_ADDR 0x00187f10
/* Values */
#define SDRAM_ENA 0x1
#define CMD_TIMEOUT 2000 /* msecs */
#define POLL_INTERVAL 5000 /* msecs */
/* commands for interaction with the modem through the control channel before
* firmware is loaded */
enum cxacru_fw_request {
FW_CMD_ERR,
FW_GET_VER,
FW_READ_MEM,
FW_WRITE_MEM,
FW_RMW_MEM,
FW_CHECKSUM_MEM,
FW_GOTO_MEM,
};
/* commands for interaction with the modem through the control channel once
* firmware is loaded */
enum cxacru_cm_request {
CM_REQUEST_UNDEFINED = 0x80,
CM_REQUEST_TEST,
CM_REQUEST_CHIP_GET_MAC_ADDRESS,
CM_REQUEST_CHIP_GET_DP_VERSIONS,
CM_REQUEST_CHIP_ADSL_LINE_START,
CM_REQUEST_CHIP_ADSL_LINE_STOP,
CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS,
CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED,
CM_REQUEST_CARD_INFO_GET,
CM_REQUEST_CARD_DATA_GET,
CM_REQUEST_CARD_DATA_SET,
CM_REQUEST_COMMAND_HW_IO,
CM_REQUEST_INTERFACE_HW_IO,
CM_REQUEST_CARD_SERIAL_DATA_PATH_GET,
CM_REQUEST_CARD_SERIAL_DATA_PATH_SET,
CM_REQUEST_CARD_CONTROLLER_VERSION_GET,
CM_REQUEST_CARD_GET_STATUS,
CM_REQUEST_CARD_GET_MAC_ADDRESS,
CM_REQUEST_CARD_GET_DATA_LINK_STATUS,
CM_REQUEST_MAX,
};
/* reply codes to the commands above */
enum cxacru_cm_status {
CM_STATUS_UNDEFINED,
CM_STATUS_SUCCESS,
CM_STATUS_ERROR,
CM_STATUS_UNSUPPORTED,
CM_STATUS_UNIMPLEMENTED,
CM_STATUS_PARAMETER_ERROR,
CM_STATUS_DBG_LOOPBACK,
CM_STATUS_MAX,
};
/* indices into CARD_INFO_GET return array */
enum cxacru_info_idx {
CXINF_DOWNSTREAM_RATE,
CXINF_UPSTREAM_RATE,
CXINF_LINK_STATUS,
CXINF_LINE_STATUS,
CXINF_MAC_ADDRESS_HIGH,
CXINF_MAC_ADDRESS_LOW,
CXINF_UPSTREAM_SNR_MARGIN,
CXINF_DOWNSTREAM_SNR_MARGIN,
CXINF_UPSTREAM_ATTENUATION,
CXINF_DOWNSTREAM_ATTENUATION,
CXINF_TRANSMITTER_POWER,
CXINF_UPSTREAM_BITS_PER_FRAME,
CXINF_DOWNSTREAM_BITS_PER_FRAME,
CXINF_STARTUP_ATTEMPTS,
CXINF_UPSTREAM_CRC_ERRORS,
CXINF_DOWNSTREAM_CRC_ERRORS,
CXINF_UPSTREAM_FEC_ERRORS,
CXINF_DOWNSTREAM_FEC_ERRORS,
CXINF_UPSTREAM_HEC_ERRORS,
CXINF_DOWNSTREAM_HEC_ERRORS,
CXINF_LINE_STARTABLE,
CXINF_MODULATION,
CXINF_ADSL_HEADEND,
CXINF_ADSL_HEADEND_ENVIRONMENT,
CXINF_CONTROLLER_VERSION,
/* dunno what the missing two mean */
CXINF_MAX = 0x1c,
};
struct cxacru_modem_type {
u32 pll_f_clk;
u32 pll_b_clk;
int boot_rom_patch;
};
struct cxacru_data {
struct usbatm_data *usbatm;
const struct cxacru_modem_type *modem_type;
int line_status;
struct work_struct poll_work;
/* contol handles */
struct semaphore cm_serialize;
u8 *rcv_buf;
u8 *snd_buf;
struct urb *rcv_urb;
struct urb *snd_urb;
struct completion rcv_done;
struct completion snd_done;
};
/* the following three functions are stolen from drivers/usb/core/message.c */
static void cxacru_blocking_completion(struct urb *urb, struct pt_regs *regs)
{
complete((struct completion *)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;
int status;
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);
status = urb->status;
if (status == -ECONNRESET)
status = -ETIMEDOUT;
del_timer_sync(&timer);
if (actual_length)
*actual_length = urb->actual_length;
return status;
}
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) {
dbg("too big transfer requested");
ret = -ENOMEM;
goto fail;
}
down(&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) {
dbg("submitting read urb for cm %#x failed", cm);
ret = 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) {
dbg("submitting write urb for cm %#x failed", cm);
ret = ret;
goto fail;
}
ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL);
if (ret < 0) {
dbg("sending cm %#x failed", cm);
ret = ret;
goto fail;
}
ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen);
if (ret < 0) {
dbg("receiving cm %#x failed", cm);
ret = ret;
goto fail;
}
if (actlen % CMD_PACKET_SIZE || !actlen) {
dbg("response is not a positive multiple of %d: %#x",
CMD_PACKET_SIZE, 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) {
dbg("wrong cm %#x in response", rbuf[offb]);
ret = -EIO;
goto fail;
}
if (rbuf[offb + 1] != CM_STATUS_SUCCESS) {
dbg("response failed: %#x", 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;
dbg("cm %#x", cm);
fail:
up(&instance->cm_serialize);
return ret;
}
static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm,
u32 *data, int size)
{
int ret, len;
u32 *buf;
int offb, 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 > stride || l > (len - offb) / 2) {
dbg("wrong data length %#x in response", l);
ret = -EIO;
goto cleanup;
}
while (l--) {
offd = le32_to_cpu(buf[offb++]);
if (offd >= size) {
dbg("wrong index %#x in response", offd);
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 */
dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret);
return ret;
}
return 0;
}
static void cxacru_poll_status(struct cxacru_data *instance);
static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
struct atm_dev *atm_dev)
{
struct cxacru_data *instance = usbatm_instance->driver_data;
struct device *dev = &usbatm_instance->usb_intf->dev;
/*
struct atm_dev *atm_dev = usbatm_instance->atm_dev;
*/
int ret;
dbg("cxacru_atm_start");
/* 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) {
dev_err(dev, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret);
return ret;
}
/* start ADSL */
ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
if (ret < 0) {
dev_err(dev, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret);
return ret;
}
/* Start status polling */
cxacru_poll_status(instance);
return 0;
}
static void cxacru_poll_status(struct cxacru_data *instance)
{
u32 buf[CXINF_MAX] = {};
struct device *dev = &instance->usbatm->usb_intf->dev;
struct atm_dev *atm_dev = instance->usbatm->atm_dev;
int ret;
ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX);
if (ret < 0) {
dev_warn(dev, "poll status: error %d\n", ret);
goto reschedule;
}
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 = ATM_PHY_SIG_LOST;
dev_info(dev, "ADSL line: down\n");
break;
case 1:
atm_dev->signal = ATM_PHY_SIG_LOST;
dev_info(dev, "ADSL line: attemtping to activate\n");
break;
case 2:
atm_dev->signal = ATM_PHY_SIG_LOST;
dev_info(dev, "ADSL line: training\n");
break;
case 3:
atm_dev->signal = ATM_PHY_SIG_LOST;
dev_info(dev, "ADSL line: channel analysis\n");
break;
case 4:
atm_dev->signal = ATM_PHY_SIG_LOST;
dev_info(dev, "ADSL line: exchange\n");
break;
case 5:
atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424;
atm_dev->signal = ATM_PHY_SIG_FOUND;
dev_info(dev, "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 = ATM_PHY_SIG_LOST;
dev_info(dev, "ADSL line: waiting\n");
break;
case 7:
atm_dev->signal = ATM_PHY_SIG_LOST;
dev_info(dev, "ADSL line: initializing\n");
break;
default:
atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
dev_info(dev, "Unknown line state %02x\n", instance->line_status);
break;
}
reschedule:
schedule_delayed_work(&instance->poll_work, msecs_to_jiffies(POLL_INTERVAL));
}
static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw,
u8 code1, u8 code2, u32 addr, 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;
*((u32 *) (buf + offb)) = cpu_to_le32(addr);
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) {
dbg("sending fw %#x failed", fw);
goto cleanup;
}
offb = 0;
}
} while(offd < size);
dbg("sent fw %#x", 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,
const struct firmware *cf)
{
int ret;
int off;
struct usb_device *usb_dev = instance->usbatm->usb_dev;
struct device *dev = &instance->usbatm->usb_intf->dev;
u16 signature[] = { usb_dev->descriptor.idVendor, usb_dev->descriptor.idProduct };
u32 val;
dbg("cxacru_upload_firmware");
/* 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) {
dev_err(dev, "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) {
dev_err(dev, "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) {
dev_err(dev, "Enable SDRAM failed: %d\n", ret);
return;
}
/* Firmware */
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size);
if (ret) {
dev_err(dev, "Firmware upload failed: %d\n", ret);
return;
}
/* Boot ROM patch */
if (instance->modem_type->boot_rom_patch) {
ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size);
if (ret) {
dev_err(dev, "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) {
dev_err(dev, "Signature storing failed: %d\n", ret);
return;
}
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) {
dev_err(dev, "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) {
dev_err(dev, "modem failed to initialize: %d\n", ret);
return;
}
/* Load config data (le32), doing one packet at a time */
if (cf)
for (off = 0; off < cf->size / 4; ) {
u32 buf[CMD_PACKET_SIZE / 4 - 1];
int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1);
buf[0] = cpu_to_le32(len);
for (i = 0; i < len; i++, off++) {
buf[i * 2 + 1] = cpu_to_le32(off);
memcpy(buf + i * 2 + 2, cf->data + off * 4, 4);
}
ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET,
(u8 *) buf, len, NULL, 0);
if (ret < 0) {
dev_err(dev, "load config data failed: %d\n", ret);
return;
}
}
msleep_interruptible(4000);
}
static int cxacru_find_firmware(struct cxacru_data *instance,
char* phase, const struct firmware **fw_p)
{
struct device *dev = &instance->usbatm->usb_intf->dev;
char buf[16];
sprintf(buf, "cxacru-%s.bin", phase);
dbg("cxacru_find_firmware: looking for %s", buf);
if (request_firmware(fw_p, buf, dev)) {
dev_dbg(dev, "no stage %s firmware found\n", phase);
return -ENOENT;
}
dev_info(dev, "found firmware %s\n", buf);
return 0;
}
static int cxacru_heavy_init(struct usbatm_data *usbatm_instance,
struct usb_interface *usb_intf)
{
struct device *dev = &usbatm_instance->usb_intf->dev;
const struct firmware *fw, *bp, *cf;
struct cxacru_data *instance = usbatm_instance->driver_data;
int ret = cxacru_find_firmware(instance, "fw", &fw);
if (ret) {
dev_warn(dev, "firmware (cxacru-fw.bin) unavailable (hotplug misconfiguration?)\n");
return ret;
}
if (instance->modem_type->boot_rom_patch) {
ret = cxacru_find_firmware(instance, "bp", &bp);
if (ret) {
dev_warn(dev, "boot ROM patch (cxacru-bp.bin) unavailable (hotplug misconfiguration?)\n");
release_firmware(fw);
return ret;
}
}
if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */
cf = NULL;
cxacru_upload_firmware(instance, fw, bp, cf);
if (cf)
release_firmware(cf);
if (instance->modem_type->boot_rom_patch)
release_firmware(bp);
release_firmware(fw);
ret = cxacru_card_status(instance);
if (ret)
dbg("modem initialisation failed");
else
dbg("done setting up the modem");
return ret;
}
static int cxacru_bind(struct usbatm_data *usbatm_instance,
struct usb_interface *intf, const struct usb_device_id *id,
int *need_heavy_init)
{
struct cxacru_data *instance;
struct usb_device *usb_dev = interface_to_usbdev(intf);
int ret;
/* instance init */
instance = kmalloc(sizeof(*instance), GFP_KERNEL);
if (!instance) {
dbg("cxacru_bind: no memory for instance data");
return -ENOMEM;
}
memset(instance, 0, sizeof(*instance));
instance->usbatm = usbatm_instance;
instance->modem_type = (struct cxacru_modem_type *) id->driver_info;
instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL);
if (!instance->rcv_buf) {
dbg("cxacru_bind: no memory for rcv_buf");
ret = -ENOMEM;
goto fail;
}
instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL);
if (!instance->snd_buf) {
dbg("cxacru_bind: no memory for snd_buf");
ret = -ENOMEM;
goto fail;
}
instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!instance->rcv_urb) {
dbg("cxacru_bind: no memory for rcv_urb");
ret = -ENOMEM;
goto fail;
}
instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!instance->snd_urb) {
dbg("cxacru_bind: no memory for snd_urb");
ret = -ENOMEM;
goto fail;
}
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);
init_MUTEX(&instance->cm_serialize);
INIT_WORK(&instance->poll_work, (void *)cxacru_poll_status, instance);
usbatm_instance->driver_data = instance;
*need_heavy_init = cxacru_card_status(instance);
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;
dbg("cxacru_unbind entered");
if (!instance) {
dbg("cxacru_unbind: NULL instance!");
return;
}
while (!cancel_delayed_work(&instance->poll_work))
flush_scheduled_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 (Well PTI-800 */
USB_DEVICE(0x0572, 0xcb02), .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 */
USB_DEVICE(0x0572, 0xcb06), .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 = {
.owner = THIS_MODULE,
.driver_name = cxacru_driver_name,
.bind = cxacru_bind,
.heavy_init = cxacru_heavy_init,
.unbind = cxacru_unbind,
.atm_start = cxacru_atm_start,
.in = CXACRU_EP_DATA,
.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)
{
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
};
static int __init cxacru_init(void)
{
return usb_register(&cxacru_usb_driver);
}
static void __exit cxacru_cleanup(void)
{
usb_deregister(&cxacru_usb_driver);
}
module_init(cxacru_init);
module_exit(cxacru_cleanup);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_VERSION(DRIVER_VERSION);
Reference in New Issue View Git Blame Copy Permalink