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author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/usb/atm/cxacru.c | |
parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/usb/atm/cxacru.c')
-rw-r--r-- | drivers/usb/atm/cxacru.c | 192 |
1 files changed, 137 insertions, 55 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 56802d2..c89990f 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); |