diff options
| -rw-r--r-- | drivers/net/wimax/i2400m/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/wimax/i2400m/control.c | 98 | ||||
| -rw-r--r-- | drivers/net/wimax/i2400m/debug-levels.h | 1 | ||||
| -rw-r--r-- | drivers/net/wimax/i2400m/driver.c | 10 | ||||
| -rw-r--r-- | drivers/net/wimax/i2400m/i2400m.h | 29 | ||||
| -rw-r--r-- | drivers/net/wimax/i2400m/sysfs.c | 80 | ||||
| -rw-r--r-- | include/linux/wimax/i2400m.h | 10 |
7 files changed, 221 insertions, 8 deletions
diff --git a/drivers/net/wimax/i2400m/Makefile b/drivers/net/wimax/i2400m/Makefile index 1696e936cf5a..5d9e018d31af 100644 --- a/drivers/net/wimax/i2400m/Makefile +++ b/drivers/net/wimax/i2400m/Makefile @@ -8,6 +8,7 @@ i2400m-y := \ driver.o \ fw.o \ op-rfkill.o \ + sysfs.o \ netdev.o \ tx.o \ rx.o diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c index c8b3a68b72b8..c3968b240d69 100644 --- a/drivers/net/wimax/i2400m/control.c +++ b/drivers/net/wimax/i2400m/control.c @@ -1222,6 +1222,77 @@ EXPORT_SYMBOL_GPL(i2400m_set_init_config); /** + * i2400m_set_idle_timeout - Set the device's idle mode timeout + * + * @i2400m: i2400m device descriptor + * + * @msecs: milliseconds for the timeout to enter idle mode. Between + * 100 to 300000 (5m); 0 to disable. In increments of 100. + * + * After this @msecs of the link being idle (no data being sent or + * received), the device will negotiate with the basestation entering + * idle mode for saving power. The connection is maintained, but + * getting out of it (done in tx.c) will require some negotiation, + * possible crypto re-handshake and a possible DHCP re-lease. + * + * Only available if fw_version >= 0x00090002. + * + * Returns: 0 if ok, < 0 errno code on error. + */ +int i2400m_set_idle_timeout(struct i2400m *i2400m, unsigned msecs) +{ + int result; + struct device *dev = i2400m_dev(i2400m); + struct sk_buff *ack_skb; + struct { + struct i2400m_l3l4_hdr hdr; + struct i2400m_tlv_config_idle_timeout cit; + } *cmd; + const struct i2400m_l3l4_hdr *ack; + size_t ack_len; + char strerr[32]; + + result = -ENOSYS; + if (i2400m_le_v1_3(i2400m)) + goto error_alloc; + result = -ENOMEM; + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + goto error_alloc; + cmd->hdr.type = cpu_to_le16(I2400M_MT_GET_STATE); + cmd->hdr.length = cpu_to_le16(sizeof(*cmd) - sizeof(cmd->hdr)); + cmd->hdr.version = cpu_to_le16(I2400M_L3L4_VERSION); + + cmd->cit.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT); + cmd->cit.hdr.length = cpu_to_le16(sizeof(cmd->cit.timeout)); + cmd->cit.timeout = cpu_to_le32(msecs); + + ack_skb = i2400m_msg_to_dev(i2400m, cmd, sizeof(*cmd)); + if (IS_ERR(ack_skb)) { + dev_err(dev, "Failed to issue 'set idle timeout' command: " + "%ld\n", PTR_ERR(ack_skb)); + result = PTR_ERR(ack_skb); + goto error_msg_to_dev; + } + ack = wimax_msg_data_len(ack_skb, &ack_len); + result = i2400m_msg_check_status(ack, strerr, sizeof(strerr)); + if (result < 0) { + dev_err(dev, "'set idle timeout' (0x%04x) command failed: " + "%d - %s\n", I2400M_MT_GET_STATE, result, strerr); + goto error_cmd_failed; + } + result = 0; + kfree_skb(ack_skb); +error_cmd_failed: +error_msg_to_dev: + kfree(cmd); +error_alloc: + return result; +} + + +/** * i2400m_dev_initialize - Initialize the device once communications are ready * * @i2400m: device descriptor @@ -1239,19 +1310,28 @@ int i2400m_dev_initialize(struct i2400m *i2400m) int result; struct device *dev = i2400m_dev(i2400m); struct i2400m_tlv_config_idle_parameters idle_params; + struct i2400m_tlv_config_idle_timeout idle_timeout; const struct i2400m_tlv_hdr *args[9]; unsigned argc = 0; d_fnstart(3, dev, "(i2400m %p)\n", i2400m); - /* Useless for now...might change */ if (i2400m_idle_mode_disabled) { - idle_params.hdr.type = - cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS); - idle_params.hdr.length = cpu_to_le16( - sizeof(idle_params) - sizeof(idle_params.hdr)); - idle_params.idle_timeout = 0; - idle_params.idle_paging_interval = 0; - args[argc++] = &idle_params.hdr; + if (i2400m_le_v1_3(i2400m)) { + idle_params.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS); + idle_params.hdr.length = cpu_to_le16( + sizeof(idle_params) - sizeof(idle_params.hdr)); + idle_params.idle_timeout = 0; + idle_params.idle_paging_interval = 0; + args[argc++] = &idle_params.hdr; + } else { + idle_timeout.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT); + idle_timeout.hdr.length = cpu_to_le16( + sizeof(idle_timeout) - sizeof(idle_timeout.hdr)); + idle_timeout.timeout = 0; + args[argc++] = &idle_timeout.hdr; + } } result = i2400m_set_init_config(i2400m, args, argc); if (result < 0) @@ -1264,6 +1344,8 @@ int i2400m_dev_initialize(struct i2400m *i2400m) */ result = i2400m_cmd_get_state(i2400m); error: + if (result < 0) + dev_err(dev, "failed to initialize the device: %d\n", result); d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); return result; } diff --git a/drivers/net/wimax/i2400m/debug-levels.h b/drivers/net/wimax/i2400m/debug-levels.h index 3183baa16a52..48fbfaa0d403 100644 --- a/drivers/net/wimax/i2400m/debug-levels.h +++ b/drivers/net/wimax/i2400m/debug-levels.h @@ -38,6 +38,7 @@ enum d_module { D_SUBMODULE_DECLARE(netdev), D_SUBMODULE_DECLARE(rfkill), D_SUBMODULE_DECLARE(rx), + D_SUBMODULE_DECLARE(sysfs), D_SUBMODULE_DECLARE(tx), }; diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c index 69a816e7c5db..f988771bfae0 100644 --- a/drivers/net/wimax/i2400m/driver.c +++ b/drivers/net/wimax/i2400m/driver.c @@ -662,6 +662,11 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags) wimax_state_change(wimax_dev, WIMAX_ST_UNINITIALIZED); /* Now setup all that requires a registered net and wimax device. */ + result = sysfs_create_group(&net_dev->dev.kobj, &i2400m_dev_attr_group); + if (result < 0) { + dev_err(dev, "cannot setup i2400m's sysfs: %d\n", result); + goto error_sysfs_setup; + } result = i2400m_debugfs_add(i2400m); if (result < 0) { dev_err(dev, "cannot setup i2400m's debugfs: %d\n", result); @@ -671,6 +676,9 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags) return result; error_debugfs_setup: + sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj, + &i2400m_dev_attr_group); +error_sysfs_setup: wimax_dev_rm(&i2400m->wimax_dev); error_wimax_dev_add: i2400m_dev_stop(i2400m); @@ -702,6 +710,8 @@ void i2400m_release(struct i2400m *i2400m) netif_stop_queue(i2400m->wimax_dev.net_dev); i2400m_debugfs_rm(i2400m); + sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj, + &i2400m_dev_attr_group); wimax_dev_rm(&i2400m->wimax_dev); i2400m_dev_stop(i2400m); unregister_netdev(i2400m->wimax_dev.net_dev); diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h index 5008cdb12b42..0c60d5c43007 100644 --- a/drivers/net/wimax/i2400m/i2400m.h +++ b/drivers/net/wimax/i2400m/i2400m.h @@ -585,6 +585,8 @@ unsigned i2400m_brh_get_signature(const struct i2400m_bootrom_header *hdr) * Driver / device setup and internal functions */ extern void i2400m_netdev_setup(struct net_device *net_dev); +extern int i2400m_sysfs_setup(struct device_driver *); +extern void i2400m_sysfs_release(struct device_driver *); extern int i2400m_tx_setup(struct i2400m *); extern void i2400m_wake_tx_work(struct work_struct *); extern void i2400m_tx_release(struct i2400m *); @@ -728,6 +730,7 @@ extern struct sk_buff *i2400m_get_device_info(struct i2400m *); extern int i2400m_firmware_check(struct i2400m *); extern int i2400m_set_init_config(struct i2400m *, const struct i2400m_tlv_hdr **, size_t); +extern int i2400m_set_idle_timeout(struct i2400m *, unsigned); static inline struct usb_endpoint_descriptor *usb_get_epd(struct usb_interface *iface, int ep) @@ -740,6 +743,32 @@ extern int i2400m_op_rfkill_sw_toggle(struct wimax_dev *, extern void i2400m_report_tlv_rf_switches_status( struct i2400m *, const struct i2400m_tlv_rf_switches_status *); +/* + * Helpers for firmware backwards compability + * + * As we aim to support at least the firmware version that was + * released with the previous kernel/driver release, some code will be + * conditionally executed depending on the firmware version. On each + * release, the code to support fw releases past the last two ones + * will be purged. + * + * By making it depend on this macros, it is easier to keep it a tab + * on what has to go and what not. + */ +static inline +unsigned i2400m_le_v1_3(struct i2400m *i2400m) +{ + /* running fw is lower or v1.3 */ + return i2400m->fw_version <= 0x00090001; +} + +static inline +unsigned i2400m_ge_v1_4(struct i2400m *i2400m) +{ + /* running fw is higher or v1.4 */ + return i2400m->fw_version >= 0x00090002; +} + /* * Do a millisecond-sleep for allowing wireshark to dump all the data diff --git a/drivers/net/wimax/i2400m/sysfs.c b/drivers/net/wimax/i2400m/sysfs.c new file mode 100644 index 000000000000..1237109f251a --- /dev/null +++ b/drivers/net/wimax/i2400m/sysfs.c @@ -0,0 +1,80 @@ +/* + * Intel Wireless WiMAX Connection 2400m + * Sysfs interfaces to show driver and device information + * + * + * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com> + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/spinlock.h> +#include <linux/device.h> +#include "i2400m.h" + + +#define D_SUBMODULE sysfs +#include "debug-levels.h" + + +/* + * Set the idle timeout (msecs) + * + * FIXME: eventually this should be a common WiMAX stack method, but + * would like to wait to see how other devices manage it. + */ +static +ssize_t i2400m_idle_timeout_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct i2400m *i2400m = net_dev_to_i2400m(to_net_dev(dev)); + unsigned val; + + result = -EINVAL; + if (sscanf(buf, "%u\n", &val) != 1) + goto error_no_unsigned; + if (val != 0 && (val < 100 || val > 300000 || val % 100 != 0)) { + dev_err(dev, "idle_timeout: %u: invalid msecs specification; " + "valid values are 0, 100-300000 in 100 increments\n", + val); + goto error_bad_value; + } + result = i2400m_set_idle_timeout(i2400m, val); + if (result >= 0) + result = size; +error_no_unsigned: +error_bad_value: + return result; +} + +static +DEVICE_ATTR(i2400m_idle_timeout, S_IWUSR, + NULL, i2400m_idle_timeout_store); + +static +struct attribute *i2400m_dev_attrs[] = { + &dev_attr_i2400m_idle_timeout.attr, + NULL, +}; + +struct attribute_group i2400m_dev_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = i2400m_dev_attrs, +}; diff --git a/include/linux/wimax/i2400m.h b/include/linux/wimax/i2400m.h index 74198f5bb4dc..686eeb2b9704 100644 --- a/include/linux/wimax/i2400m.h +++ b/include/linux/wimax/i2400m.h @@ -381,6 +381,7 @@ enum i2400m_tlv { I2400M_TLV_RF_STATUS = 163, I2400M_TLV_DEVICE_RESET_TYPE = 132, I2400M_TLV_CONFIG_IDLE_PARAMETERS = 601, + I2400M_TLV_CONFIG_IDLE_TIMEOUT = 611, }; @@ -509,4 +510,13 @@ struct i2400m_tlv_media_status { __le32 media_status; } __attribute__((packed)); + +/* New in v1.4 */ +struct i2400m_tlv_config_idle_timeout { + struct i2400m_tlv_hdr hdr; + __le32 timeout; /* 100 to 300000 ms [5min], 100 increments + * 0 disabled */ +} __attribute__((packed)); + + #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */ |