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path: root/drivers/usb/atm/cxacru.c
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Diffstat (limited to 'drivers/usb/atm/cxacru.c')
-rw-r--r--drivers/usb/atm/cxacru.c192
1 files changed, 137 insertions, 55 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 56802d2e994b..c89990f5e018 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -5,6 +5,7 @@
* Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan
* Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru)
* Copyright (C) 2007 Simon Arlott
+ * Copyright (C) 2009 Simon Arlott
*
* 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
@@ -43,7 +44,7 @@
#include "usbatm.h"
#define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott"
-#define DRIVER_VERSION "0.3"
+#define DRIVER_VERSION "0.4"
#define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver"
static const char cxacru_driver_name[] = "cxacru";
@@ -52,6 +53,7 @@ static const char cxacru_driver_name[] = "cxacru";
#define CXACRU_EP_DATA 0x02 /* Bulk in/out */
#define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */
+#define CMD_MAX_CONFIG ((CMD_PACKET_SIZE / 4 - 1) / 2)
/* Addresses */
#define PLLFCLK_ADDR 0x00350068
@@ -105,6 +107,26 @@ enum cxacru_cm_request {
CM_REQUEST_MAX,
};
+/* commands for interaction with the flash memory
+ *
+ * read: response is the contents of the first 60 bytes of flash memory
+ * write: request contains the 60 bytes of data to write to flash memory
+ * response is the contents of the first 60 bytes of flash memory
+ *
+ * layout: PP PP VV VV MM MM MM MM MM MM ?? ?? SS SS SS SS SS SS SS SS
+ * SS SS SS SS SS SS SS SS 00 00 00 00 00 00 00 00 00 00 00 00
+ * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ *
+ * P: le16 USB Product ID
+ * V: le16 USB Vendor ID
+ * M: be48 MAC Address
+ * S: le16 ASCII Serial Number
+ */
+enum cxacru_cm_flash {
+ CM_FLASH_READ = 0xa1,
+ CM_FLASH_WRITE = 0xa2
+};
+
/* reply codes to the commands above */
enum cxacru_cm_status {
CM_STATUS_UNDEFINED,
@@ -196,23 +218,32 @@ static DEVICE_ATTR(_name, S_IRUGO, cxacru_sysfs_show_##_name, NULL)
static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, \
cxacru_sysfs_show_##_name, cxacru_sysfs_store_##_name)
+#define CXACRU_SET_INIT(_name) \
+static DEVICE_ATTR(_name, S_IWUSR, \
+ NULL, cxacru_sysfs_store_##_name)
+
#define CXACRU_ATTR_INIT(_value, _type, _name) \
static ssize_t cxacru_sysfs_show_##_name(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); \
- struct cxacru_data *instance = usbatm_instance->driver_data; \
+ struct cxacru_data *instance = to_usbatm_driver_data(\
+ to_usb_interface(dev)); \
+\
+ if (instance == NULL) \
+ return -ENODEV; \
+\
return cxacru_sysfs_showattr_##_type(instance->card_info[_value], buf); \
} \
CXACRU__ATTR_INIT(_name)
#define CXACRU_ATTR_CREATE(_v, _t, _name) CXACRU_DEVICE_CREATE_FILE(_name)
#define CXACRU_CMD_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
+#define CXACRU_SET_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
#define CXACRU__ATTR_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
#define CXACRU_ATTR_REMOVE(_v, _t, _name) CXACRU_DEVICE_REMOVE_FILE(_name)
#define CXACRU_CMD_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
+#define CXACRU_SET_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
#define CXACRU__ATTR_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
static ssize_t cxacru_sysfs_showattr_u32(u32 value, char *buf)
@@ -267,12 +298,12 @@ static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf)
static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
{
static char *str[] = {
- NULL,
+ "",
"ANSI T1.413",
"ITU-T G.992.1 (G.DMT)",
"ITU-T G.992.2 (G.LITE)"
};
- if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
+ if (unlikely(value >= ARRAY_SIZE(str)))
return snprintf(buf, PAGE_SIZE, "%u\n", value);
return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
}
@@ -288,22 +319,28 @@ static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
static ssize_t cxacru_sysfs_show_mac_address(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
- struct atm_dev *atm_dev = usbatm_instance->atm_dev;
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
- return snprintf(buf, PAGE_SIZE, "%pM\n", atm_dev->esi);
+ if (instance == NULL || instance->usbatm->atm_dev == NULL)
+ return -ENODEV;
+
+ return snprintf(buf, PAGE_SIZE, "%pM\n",
+ instance->usbatm->atm_dev->esi);
}
static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
- struct cxacru_data *instance = usbatm_instance->driver_data;
- u32 value = instance->card_info[CXINF_LINE_STARTABLE];
-
static char *str[] = { "running", "stopped" };
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
+ u32 value;
+
+ if (instance == NULL)
+ return -ENODEV;
+
+ value = instance->card_info[CXINF_LINE_STARTABLE];
if (unlikely(value >= ARRAY_SIZE(str)))
return snprintf(buf, PAGE_SIZE, "%u\n", value);
return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
@@ -312,9 +349,8 @@ static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev,
static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
- struct usb_interface *intf = to_usb_interface(dev);
- struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
- struct cxacru_data *instance = usbatm_instance->driver_data;
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
int ret;
int poll = -1;
char str_cmd[8];
@@ -328,13 +364,16 @@ static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
return -EINVAL;
ret = 0;
+ if (instance == NULL)
+ return -ENODEV;
+
if (mutex_lock_interruptible(&instance->adsl_state_serialize))
return -ERESTARTSYS;
if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) {
ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0);
if (ret < 0) {
- atm_err(usbatm_instance, "change adsl state:"
+ atm_err(instance->usbatm, "change adsl state:"
" CHIP_ADSL_LINE_STOP returned %d\n", ret);
ret = -EIO;
@@ -354,7 +393,7 @@ static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) {
ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
if (ret < 0) {
- atm_err(usbatm_instance, "change adsl state:"
+ atm_err(instance->usbatm, "change adsl state:"
" CHIP_ADSL_LINE_START returned %d\n", ret);
ret = -EIO;
@@ -407,6 +446,72 @@ static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
return ret;
}
+/* CM_REQUEST_CARD_DATA_GET times out, so no show attribute */
+
+static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct cxacru_data *instance = to_usbatm_driver_data(
+ to_usb_interface(dev));
+ int len = strlen(buf);
+ int ret, pos, num;
+ __le32 data[CMD_PACKET_SIZE / 4];
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EACCES;
+
+ if (instance == NULL)
+ return -ENODEV;
+
+ pos = 0;
+ num = 0;
+ while (pos < len) {
+ int tmp;
+ u32 index;
+ u32 value;
+
+ ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
+ if (ret < 2)
+ return -EINVAL;
+ if (index < 0 || index > 0x7f)
+ 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:
@@ -442,7 +547,8 @@ 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_CMD_##_action( adsl_state); \
+CXACRU_SET_##_action( adsl_config);
CXACRU_ALL_FILES(INIT);
@@ -596,7 +702,7 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
len = ret / 4;
for (offb = 0; offb < len; ) {
int l = le32_to_cpu(buf[offb++]);
- if (l > stride || l > (len - offb) / 2) {
+ 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);
@@ -649,9 +755,6 @@ static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
{
struct cxacru_data *instance = usbatm_instance->driver_data;
struct usb_interface *intf = usbatm_instance->usb_intf;
- /*
- struct atm_dev *atm_dev = usbatm_instance->atm_dev;
- */
int ret;
int start_polling = 1;
@@ -697,6 +800,9 @@ static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
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;
@@ -873,11 +979,9 @@ cleanup:
static void cxacru_upload_firmware(struct cxacru_data *instance,
const struct firmware *fw,
- const struct firmware *bp,
- const struct firmware *cf)
+ const struct firmware *bp)
{
int ret;
- int off;
struct usbatm_data *usbatm = instance->usbatm;
struct usb_device *usb_dev = usbatm->usb_dev;
__le16 signature[] = { usb_dev->descriptor.idVendor,
@@ -911,6 +1015,7 @@ static void cxacru_upload_firmware(struct cxacru_data *instance,
}
/* 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);
@@ -919,6 +1024,7 @@ static void cxacru_upload_firmware(struct cxacru_data *instance,
/* 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);
@@ -933,6 +1039,7 @@ static void cxacru_upload_firmware(struct cxacru_data *instance,
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);
@@ -958,26 +1065,6 @@ static void cxacru_upload_firmware(struct cxacru_data *instance,
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; ) {
- __le32 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,
@@ -1003,7 +1090,7 @@ static int cxacru_find_firmware(struct cxacru_data *instance,
static int cxacru_heavy_init(struct usbatm_data *usbatm_instance,
struct usb_interface *usb_intf)
{
- const struct firmware *fw, *bp, *cf;
+ const struct firmware *fw, *bp;
struct cxacru_data *instance = usbatm_instance->driver_data;
int ret = cxacru_find_firmware(instance, "fw", &fw);
@@ -1021,13 +1108,8 @@ static int cxacru_heavy_init(struct usbatm_data *usbatm_instance,
}
}
- if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */
- cf = NULL;
-
- cxacru_upload_firmware(instance, fw, bp, cf);
+ cxacru_upload_firmware(instance, fw, bp);
- if (cf)
- release_firmware(cf);
if (instance->modem_type->boot_rom_patch)
release_firmware(bp);
release_firmware(fw);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.