![Arjan van de Ven](/assets/img/avatar_default.png)
This is the usbatm part of the Arjan, Jes and Ingo mass semaphore to mutex conversion, reworked to apply on top of the patches I just sent to you. This time, with correct attribution and signed-off lines. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Duncan Sands <baldrick@free.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
875 lines
23 KiB
C
875 lines
23 KiB
C
/******************************************************************************
|
|
* 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 <linux/mutex.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 mutex 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;
|
|
}
|
|
|
|
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) {
|
|
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:
|
|
mutex_unlock(&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 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) {
|
|
atm_err(usbatm_instance, "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) {
|
|
atm_err(usbatm_instance, "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 usbatm_data *usbatm = instance->usbatm;
|
|
struct atm_dev *atm_dev = usbatm->atm_dev;
|
|
int ret;
|
|
|
|
ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX);
|
|
if (ret < 0) {
|
|
atm_warn(usbatm, "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;
|
|
atm_info(usbatm, "ADSL line: down\n");
|
|
break;
|
|
|
|
case 1:
|
|
atm_dev->signal = ATM_PHY_SIG_LOST;
|
|
atm_info(usbatm, "ADSL line: attempting to activate\n");
|
|
break;
|
|
|
|
case 2:
|
|
atm_dev->signal = ATM_PHY_SIG_LOST;
|
|
atm_info(usbatm, "ADSL line: training\n");
|
|
break;
|
|
|
|
case 3:
|
|
atm_dev->signal = ATM_PHY_SIG_LOST;
|
|
atm_info(usbatm, "ADSL line: channel analysis\n");
|
|
break;
|
|
|
|
case 4:
|
|
atm_dev->signal = 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 = 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 = ATM_PHY_SIG_LOST;
|
|
atm_info(usbatm, "ADSL line: waiting\n");
|
|
break;
|
|
|
|
case 7:
|
|
atm_dev->signal = ATM_PHY_SIG_LOST;
|
|
atm_info(usbatm, "ADSL line: initializing\n");
|
|
break;
|
|
|
|
default:
|
|
atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
|
|
atm_info(usbatm, "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 usbatm_data *usbatm = instance->usbatm;
|
|
struct usb_device *usb_dev = usbatm->usb_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) {
|
|
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 */
|
|
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) {
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/* 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) {
|
|
usb_err(usbatm, "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 usbatm_data *usbatm = instance->usbatm;
|
|
struct device *dev = &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)) {
|
|
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, *cf;
|
|
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;
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
struct cxacru_data *instance;
|
|
struct usb_device *usb_dev = interface_to_usbdev(intf);
|
|
int ret;
|
|
|
|
/* instance init */
|
|
instance = kzalloc(sizeof(*instance), GFP_KERNEL);
|
|
if (!instance) {
|
|
dbg("cxacru_bind: no memory for instance data");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
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);
|
|
|
|
mutex_init(&instance->cm_serialize);
|
|
|
|
INIT_WORK(&instance->poll_work, (void *)cxacru_poll_status, instance);
|
|
|
|
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;
|
|
|
|
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 */
|
|
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 = 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)
|
|
{
|
|
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);
|