| /* |
| * --------------------------------------------------------------------------- |
| * FILE: drv.c |
| * |
| * PURPOSE: |
| * Conventional device interface for debugging/monitoring of the |
| * driver and h/w using unicli. This interface is also being used |
| * by the SME linux implementation and the helper apps. |
| * |
| * Copyright (C) 2005-2009 by Cambridge Silicon Radio Ltd. |
| * |
| * Refer to LICENSE.txt included with this source code for details on |
| * the license terms. |
| * |
| * --------------------------------------------------------------------------- |
| */ |
| |
| |
| |
| /* |
| * Porting Notes: |
| * Part of this file contains an example for how to glue the OS layer |
| * with the HIP core lib, the SDIO glue layer, and the SME. |
| * |
| * When the unifi_sdio.ko modules loads, the linux kernel calls unifi_load(). |
| * unifi_load() calls uf_sdio_load() which is exported by the SDIO glue |
| * layer. uf_sdio_load() registers this driver with the underlying SDIO driver. |
| * When a card is detected, the SDIO glue layer calls register_unifi_sdio() |
| * to pass the SDIO function context and ask the OS layer to initialise |
| * the card. register_unifi_sdio() allocates all the private data of the OS |
| * layer and calls uf_run_unifihelper() to start the SME. The SME calls |
| * unifi_sys_wifi_on_req() which uses the HIP core lib to initialise the card. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/poll.h> |
| #include <asm/uaccess.h> |
| #include <linux/jiffies.h> |
| |
| #include "csr_wifi_hip_unifiversion.h" |
| #include "unifi_priv.h" |
| #include "csr_wifi_hip_conversions.h" |
| #include "unifi_native.h" |
| |
| /* Module parameter variables */ |
| int buswidth = 0; /* 0 means use default, values 1,4 */ |
| int sdio_clock = 50000; /* kHz */ |
| int unifi_debug = 0; |
| /* fw_init prevents f/w initialisation on error. */ |
| int fw_init[MAX_UNIFI_DEVS] = {-1, -1}; |
| int use_5g = 0; |
| int led_mask = 0; /* 0x0c00 for dev-pc-1503c, dev-pc-1528a */ |
| int disable_hw_reset = 0; |
| int disable_power_control = 0; |
| int enable_wol = UNIFI_WOL_OFF; /* 0 for none, 1 for SDIO IRQ, 2 for PIO */ |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| int tl_80211d = (int)CSR_WIFI_SME_80211D_TRUST_LEVEL_MIB; |
| #endif |
| int sdio_block_size = -1; /* Override SDIO block size */ |
| int sdio_byte_mode = 0; /* 0 for block mode + padding, 1 for byte mode */ |
| int coredump_max = CSR_WIFI_HIP_NUM_COREDUMP_BUFFERS; |
| int run_bh_once = -1; /* Set for scheduled interrupt mode, -1 = default */ |
| int bh_priority = -1; |
| #ifdef CSR_WIFI_HIP_DEBUG_OFFLINE |
| #define UNIFI_LOG_HIP_SIGNALS_FILTER_BULKDATA (1 << 1) |
| #define UNIFI_LOG_HIP_SIGNALS_FILTER_TIMESTAMP (1 << 2) |
| int log_hip_signals = 0; |
| #endif |
| |
| MODULE_DESCRIPTION("CSR UniFi (SDIO)"); |
| |
| module_param(buswidth, int, S_IRUGO|S_IWUSR); |
| module_param(sdio_clock, int, S_IRUGO|S_IWUSR); |
| module_param(unifi_debug, int, S_IRUGO|S_IWUSR); |
| module_param_array(fw_init, int, NULL, S_IRUGO|S_IWUSR); |
| module_param(use_5g, int, S_IRUGO|S_IWUSR); |
| module_param(led_mask, int, S_IRUGO|S_IWUSR); |
| module_param(disable_hw_reset, int, S_IRUGO|S_IWUSR); |
| module_param(disable_power_control, int, S_IRUGO|S_IWUSR); |
| module_param(enable_wol, int, S_IRUGO|S_IWUSR); |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| module_param(tl_80211d, int, S_IRUGO|S_IWUSR); |
| #endif |
| module_param(sdio_block_size, int, S_IRUGO|S_IWUSR); |
| module_param(sdio_byte_mode, int, S_IRUGO|S_IWUSR); |
| module_param(coredump_max, int, S_IRUGO|S_IWUSR); |
| module_param(run_bh_once, int, S_IRUGO|S_IWUSR); |
| module_param(bh_priority, int, S_IRUGO|S_IWUSR); |
| #ifdef CSR_WIFI_HIP_DEBUG_OFFLINE |
| module_param(log_hip_signals, int, S_IRUGO|S_IWUSR); |
| #endif |
| |
| MODULE_PARM_DESC(buswidth, "SDIO bus width (0=default), set 1 for 1-bit or 4 for 4-bit mode"); |
| MODULE_PARM_DESC(sdio_clock, "SDIO bus frequency in kHz, (default = 50 MHz)"); |
| MODULE_PARM_DESC(unifi_debug, "Diagnostic reporting level"); |
| MODULE_PARM_DESC(fw_init, "Set to 0 to prevent f/w initialization on error"); |
| MODULE_PARM_DESC(use_5g, "Use the 5G (802.11a) radio band"); |
| MODULE_PARM_DESC(led_mask, "LED mask flags"); |
| MODULE_PARM_DESC(disable_hw_reset, "Set to 1 to disable hardware reset"); |
| MODULE_PARM_DESC(disable_power_control, "Set to 1 to disable SDIO power control"); |
| MODULE_PARM_DESC(enable_wol, "Enable wake-on-wlan function 0=off, 1=SDIO, 2=PIO"); |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| MODULE_PARM_DESC(tl_80211d, "802.11d Trust Level (1-6, default = 5)"); |
| #endif |
| MODULE_PARM_DESC(sdio_block_size, "Set to override SDIO block size"); |
| MODULE_PARM_DESC(sdio_byte_mode, "Set to 1 for byte mode SDIO"); |
| MODULE_PARM_DESC(coredump_max, "Number of chip mini-coredump buffers to allocate"); |
| MODULE_PARM_DESC(run_bh_once, "Run BH only when firmware interrupts"); |
| MODULE_PARM_DESC(bh_priority, "Modify the BH thread priority"); |
| #ifdef CSR_WIFI_HIP_DEBUG_OFFLINE |
| MODULE_PARM_DESC(log_hip_signals, "Set to 1 to enable HIP signal offline logging"); |
| #endif |
| |
| |
| /* Callback for event logging to UDI clients */ |
| static void udi_log_event(ul_client_t *client, |
| const u8 *signal, int signal_len, |
| const bulk_data_param_t *bulkdata, |
| int dir); |
| |
| static void udi_set_log_filter(ul_client_t *pcli, |
| unifiio_filter_t *udi_filter); |
| |
| |
| /* Mutex to protect access to priv->sme_cli */ |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37) |
| DEFINE_SEMAPHORE(udi_mutex); |
| #else |
| DECLARE_MUTEX(udi_mutex); |
| #endif |
| |
| s32 CsrHipResultToStatus(CsrResult csrResult) |
| { |
| s32 r = -EIO; |
| |
| switch (csrResult) |
| { |
| case CSR_RESULT_SUCCESS: |
| r = 0; |
| break; |
| case CSR_WIFI_HIP_RESULT_RANGE: |
| r = -ERANGE; |
| break; |
| case CSR_WIFI_HIP_RESULT_NO_DEVICE: |
| r = -ENODEV; |
| break; |
| case CSR_WIFI_HIP_RESULT_INVALID_VALUE: |
| r = -EINVAL; |
| break; |
| case CSR_WIFI_HIP_RESULT_NOT_FOUND: |
| r = -ENOENT; |
| break; |
| case CSR_WIFI_HIP_RESULT_NO_SPACE: |
| r = -ENOSPC; |
| break; |
| case CSR_WIFI_HIP_RESULT_NO_MEMORY: |
| r = -ENOMEM; |
| break; |
| case CSR_RESULT_FAILURE: |
| r = -EIO; |
| break; |
| default: |
| /*unifi_warning(card->ospriv, "CsrHipResultToStatus: Unrecognised csrResult error code: %d\n", csrResult);*/ |
| r = -EIO; |
| } |
| return r; |
| } |
| |
| |
| static const char* |
| trace_putest_cmdid(unifi_putest_command_t putest_cmd) |
| { |
| switch (putest_cmd) |
| { |
| case UNIFI_PUTEST_START: |
| return "START"; |
| case UNIFI_PUTEST_STOP: |
| return "STOP"; |
| case UNIFI_PUTEST_SET_SDIO_CLOCK: |
| return "SET CLOCK"; |
| case UNIFI_PUTEST_CMD52_READ: |
| return "CMD52R"; |
| case UNIFI_PUTEST_CMD52_BLOCK_READ: |
| return "CMD52BR"; |
| case UNIFI_PUTEST_CMD52_WRITE: |
| return "CMD52W"; |
| case UNIFI_PUTEST_DL_FW: |
| return "D/L FW"; |
| case UNIFI_PUTEST_DL_FW_BUFF: |
| return "D/L FW BUFFER"; |
| case UNIFI_PUTEST_COREDUMP_PREPARE: |
| return "PREPARE COREDUMP"; |
| case UNIFI_PUTEST_GP_READ16: |
| return "GP16R"; |
| case UNIFI_PUTEST_GP_WRITE16: |
| return "GP16W"; |
| default: |
| return "ERROR: unrecognised command"; |
| } |
| } |
| |
| #ifdef CSR_WIFI_HIP_DEBUG_OFFLINE |
| int uf_register_hip_offline_debug(unifi_priv_t *priv) |
| { |
| ul_client_t *udi_cli; |
| int i; |
| |
| udi_cli = ul_register_client(priv, CLI_USING_WIRE_FORMAT, udi_log_event); |
| if (udi_cli == NULL) { |
| /* Too many clients already using this device */ |
| unifi_error(priv, "Too many UDI clients already open\n"); |
| return -ENOSPC; |
| } |
| unifi_trace(priv, UDBG1, "Offline HIP client is registered\n"); |
| |
| down(&priv->udi_logging_mutex); |
| udi_cli->event_hook = udi_log_event; |
| unifi_set_udi_hook(priv->card, logging_handler); |
| /* Log all signals by default */ |
| for (i = 0; i < SIG_FILTER_SIZE; i++) { |
| udi_cli->signal_filter[i] = 0xFFFF; |
| } |
| priv->logging_client = udi_cli; |
| up(&priv->udi_logging_mutex); |
| |
| return 0; |
| } |
| |
| int uf_unregister_hip_offline_debug(unifi_priv_t *priv) |
| { |
| ul_client_t *udi_cli = priv->logging_client; |
| if (udi_cli == NULL) |
| { |
| unifi_error(priv, "Unknown HIP client unregister request\n"); |
| return -ERANGE; |
| } |
| |
| unifi_trace(priv, UDBG1, "Offline HIP client is unregistered\n"); |
| |
| down(&priv->udi_logging_mutex); |
| priv->logging_client = NULL; |
| udi_cli->event_hook = NULL; |
| up(&priv->udi_logging_mutex); |
| |
| ul_deregister_client(udi_cli); |
| |
| return 0; |
| } |
| #endif |
| |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * unifi_open |
| * unifi_release |
| * |
| * Open and release entry points for the UniFi debug driver. |
| * |
| * Arguments: |
| * Normal linux driver args. |
| * |
| * Returns: |
| * Linux error code. |
| * --------------------------------------------------------------------------- |
| */ |
| static int |
| unifi_open(struct inode *inode, struct file *file) |
| { |
| int devno; |
| unifi_priv_t *priv; |
| ul_client_t *udi_cli; |
| |
| func_enter(); |
| |
| devno = MINOR(inode->i_rdev) >> 1; |
| |
| /* |
| * Increase the ref_count for the char device clients. |
| * Make sure you call uf_put_instance() to decreace it if |
| * unifi_open returns an error. |
| */ |
| priv = uf_get_instance(devno); |
| if (priv == NULL) { |
| unifi_error(NULL, "unifi_open: No device present\n"); |
| func_exit(); |
| return -ENODEV; |
| } |
| |
| /* Register this instance in the client's list. */ |
| /* The minor number determines the nature of the client (Unicli or SME). */ |
| if (MINOR(inode->i_rdev) & 0x1) { |
| udi_cli = ul_register_client(priv, CLI_USING_WIRE_FORMAT, udi_log_event); |
| if (udi_cli == NULL) { |
| /* Too many clients already using this device */ |
| unifi_error(priv, "Too many clients already open\n"); |
| uf_put_instance(devno); |
| func_exit(); |
| return -ENOSPC; |
| } |
| unifi_trace(priv, UDBG1, "Client is registered to /dev/unifiudi%d\n", devno); |
| } else { |
| /* |
| * Even-numbered device nodes are the control application. |
| * This is the userspace helper containing SME or |
| * unifi_manager. |
| */ |
| |
| down(&udi_mutex); |
| |
| #ifdef CSR_SME_USERSPACE |
| /* Check if a config client is already attached */ |
| if (priv->sme_cli) { |
| up(&udi_mutex); |
| uf_put_instance(devno); |
| |
| unifi_info(priv, "There is already a configuration client using the character device\n"); |
| func_exit(); |
| return -EBUSY; |
| } |
| #endif /* CSR_SME_USERSPACE */ |
| |
| #ifdef CSR_SUPPORT_SME |
| udi_cli = ul_register_client(priv, |
| CLI_USING_WIRE_FORMAT | CLI_SME_USERSPACE, |
| sme_log_event); |
| #else |
| /* Config client for native driver */ |
| udi_cli = ul_register_client(priv, |
| 0, |
| sme_native_log_event); |
| #endif |
| if (udi_cli == NULL) { |
| /* Too many clients already using this device */ |
| up(&udi_mutex); |
| uf_put_instance(devno); |
| |
| unifi_error(priv, "Too many clients already open\n"); |
| func_exit(); |
| return -ENOSPC; |
| } |
| |
| /* |
| * Fill-in the pointer to the configuration client. |
| * This is the SME userspace helper or unifi_manager. |
| * Not used in the SME embedded version. |
| */ |
| unifi_trace(priv, UDBG1, "SME client (id:%d s:0x%X) is registered\n", |
| udi_cli->client_id, udi_cli->sender_id); |
| /* Store the SME UniFi Linux Client */ |
| if (priv->sme_cli == NULL) { |
| priv->sme_cli = udi_cli; |
| } |
| |
| up(&udi_mutex); |
| } |
| |
| |
| /* |
| * Store the pointer to the client. |
| * All char driver's entry points will pass this pointer. |
| */ |
| file->private_data = udi_cli; |
| |
| func_exit(); |
| return 0; |
| } /* unifi_open() */ |
| |
| |
| static int |
| unifi_release(struct inode *inode, struct file *filp) |
| { |
| ul_client_t *udi_cli = (void*)filp->private_data; |
| int devno; |
| unifi_priv_t *priv; |
| |
| func_enter(); |
| |
| priv = uf_find_instance(udi_cli->instance); |
| if (!priv) { |
| unifi_error(priv, "unifi_close: instance for device not found\n"); |
| return -ENODEV; |
| } |
| |
| devno = MINOR(inode->i_rdev) >> 1; |
| |
| /* Even device nodes are the config client (i.e. SME or unifi_manager) */ |
| if ((MINOR(inode->i_rdev) & 0x1) == 0) { |
| |
| if (priv->sme_cli != udi_cli) { |
| unifi_notice(priv, "Surprise closing config device: not the sme client\n"); |
| } |
| unifi_notice(priv, "SME client close (unifi%d)\n", devno); |
| |
| /* |
| * Clear sme_cli before calling unifi_sys_... so it doesn't try to |
| * queue a reply to the (now gone) SME. |
| */ |
| down(&udi_mutex); |
| priv->sme_cli = NULL; |
| up(&udi_mutex); |
| |
| #ifdef CSR_SME_USERSPACE |
| /* Power-down when config client closes */ |
| { |
| CsrWifiRouterCtrlWifiOffReq req = {{CSR_WIFI_ROUTER_CTRL_HIP_REQ, 0, 0, 0, NULL}}; |
| CsrWifiRouterCtrlWifiOffReqHandler(priv, &req.common); |
| } |
| |
| uf_sme_deinit(priv); |
| |
| /* It is possible that a blocking SME request was made from another process |
| * which did not get read by the SME before the WifiOffReq. |
| * So check for a pending request which will go unanswered and cancel |
| * the wait for event. As only one blocking request can be in progress at |
| * a time, up to one event should be completed. |
| */ |
| uf_sme_cancel_request(priv, 0); |
| |
| #endif /* CSR_SME_USERSPACE */ |
| } else { |
| |
| unifi_trace(priv, UDBG2, "UDI client close (unifiudi%d)\n", devno); |
| |
| /* If the pointer matches the logging client, stop logging. */ |
| down(&priv->udi_logging_mutex); |
| if (udi_cli == priv->logging_client) { |
| priv->logging_client = NULL; |
| } |
| up(&priv->udi_logging_mutex); |
| |
| if (udi_cli == priv->amp_client) { |
| priv->amp_client = NULL; |
| } |
| } |
| |
| /* Deregister this instance from the client's list. */ |
| ul_deregister_client(udi_cli); |
| |
| uf_put_instance(devno); |
| |
| return 0; |
| } /* unifi_release() */ |
| |
| |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * unifi_read |
| * |
| * The read() driver entry point. |
| * |
| * Arguments: |
| * filp The file descriptor returned by unifi_open() |
| * p The user space buffer to copy the read data |
| * len The size of the p buffer |
| * poff |
| * |
| * Returns: |
| * number of bytes read or an error code on failure |
| * --------------------------------------------------------------------------- |
| */ |
| static ssize_t |
| unifi_read(struct file *filp, char *p, size_t len, loff_t *poff) |
| { |
| ul_client_t *pcli = (void*)filp->private_data; |
| unifi_priv_t *priv; |
| udi_log_t *logptr = NULL; |
| udi_msg_t *msgptr; |
| struct list_head *l; |
| int msglen; |
| |
| func_enter(); |
| |
| priv = uf_find_instance(pcli->instance); |
| if (!priv) { |
| unifi_error(priv, "invalid priv\n"); |
| return -ENODEV; |
| } |
| |
| if (!pcli->udi_enabled) { |
| unifi_error(priv, "unifi_read: unknown client."); |
| return -EINVAL; |
| } |
| |
| if (list_empty(&pcli->udi_log)) { |
| if (filp->f_flags & O_NONBLOCK) { |
| /* Non-blocking - just return if the udi_log is empty */ |
| return 0; |
| } else { |
| /* Blocking - wait on the UDI wait queue */ |
| if (wait_event_interruptible(pcli->udi_wq, |
| !list_empty(&pcli->udi_log))) |
| { |
| unifi_error(priv, "unifi_read: wait_event_interruptible failed."); |
| return -ERESTARTSYS; |
| } |
| } |
| } |
| |
| /* Read entry from list head and remove it from the list */ |
| if (down_interruptible(&pcli->udi_sem)) { |
| return -ERESTARTSYS; |
| } |
| l = pcli->udi_log.next; |
| list_del(l); |
| up(&pcli->udi_sem); |
| |
| /* Get a pointer to whole struct */ |
| logptr = list_entry(l, udi_log_t, q); |
| if (logptr == NULL) { |
| unifi_error(priv, "unifi_read: failed to get event.\n"); |
| return -EINVAL; |
| } |
| |
| /* Get the real message */ |
| msgptr = &logptr->msg; |
| msglen = msgptr->length; |
| if (msglen > len) { |
| printk(KERN_WARNING "truncated read to %d actual msg len is %lu\n", msglen, (long unsigned int)len); |
| msglen = len; |
| } |
| |
| /* and pass it to the client (SME or Unicli). */ |
| if (copy_to_user(p, msgptr, msglen)) |
| { |
| printk(KERN_ERR "Failed to copy UDI log to user\n"); |
| kfree(logptr); |
| return -EFAULT; |
| } |
| |
| /* It is our resposibility to free the message buffer. */ |
| kfree(logptr); |
| |
| func_exit_r(msglen); |
| return msglen; |
| |
| } /* unifi_read() */ |
| |
| |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * udi_send_signal_unpacked |
| * |
| * Sends an unpacked signal to UniFi. |
| * |
| * Arguments: |
| * priv Pointer to private context struct |
| * data Pointer to request structure and data to send |
| * data_len Length of data in data pointer. |
| * |
| * Returns: |
| * Number of bytes written, error otherwise. |
| * |
| * Notes: |
| * All clients that use this function to send a signal to the unifi |
| * must use the host formatted structures. |
| * --------------------------------------------------------------------------- |
| */ |
| static int |
| udi_send_signal_unpacked(unifi_priv_t *priv, unsigned char* data, uint data_len) |
| { |
| CSR_SIGNAL *sigptr = (CSR_SIGNAL*)data; |
| CSR_DATAREF *datarefptr; |
| bulk_data_param_t bulk_data; |
| uint signal_size, i; |
| uint bulk_data_offset = 0; |
| int bytecount, r; |
| CsrResult csrResult; |
| |
| /* Number of bytes in the signal */ |
| signal_size = SigGetSize(sigptr); |
| if (!signal_size || (signal_size > data_len)) { |
| unifi_error(priv, "unifi_sme_mlme_req - Invalid signal 0x%x size should be %d bytes\n", |
| sigptr->SignalPrimitiveHeader.SignalId, |
| signal_size); |
| return -EINVAL; |
| } |
| bytecount = signal_size; |
| |
| /* Get a pointer to the information of the first data reference */ |
| datarefptr = (CSR_DATAREF*)&sigptr->u; |
| |
| /* Initialize the offset in the data buffer, bulk data is right after the signal. */ |
| bulk_data_offset = signal_size; |
| |
| /* store the references and the size of the bulk data to the bulkdata structure */ |
| for (i = 0; i < UNIFI_MAX_DATA_REFERENCES; i++) { |
| /* the length of the bulk data is in the signal */ |
| if ((datarefptr+i)->DataLength) { |
| void *dest; |
| |
| csrResult = unifi_net_data_malloc(priv, &bulk_data.d[i], (datarefptr+i)->DataLength); |
| if (csrResult != CSR_RESULT_SUCCESS) { |
| unifi_error(priv, "udi_send_signal_unpacked: failed to allocate request_data.\n"); |
| return -EIO; |
| } |
| |
| dest = (void*)bulk_data.d[i].os_data_ptr; |
| memcpy(dest, data + bulk_data_offset, bulk_data.d[i].data_length); |
| } else { |
| bulk_data.d[i].data_length = 0; |
| } |
| |
| bytecount += bulk_data.d[i].data_length; |
| /* advance the offset, to point the next bulk data */ |
| bulk_data_offset += bulk_data.d[i].data_length; |
| } |
| |
| |
| unifi_trace(priv, UDBG3, "SME Send: signal 0x%.4X\n", sigptr->SignalPrimitiveHeader.SignalId); |
| |
| /* Send the signal. */ |
| r = ul_send_signal_unpacked(priv, sigptr, &bulk_data); |
| if (r < 0) { |
| unifi_error(priv, "udi_send_signal_unpacked: send failed (%d)\n", r); |
| for(i=0;i<UNIFI_MAX_DATA_REFERENCES;i++) { |
| if(bulk_data.d[i].data_length != 0) { |
| unifi_net_data_free(priv, &bulk_data.d[i]); |
| } |
| } |
| func_exit(); |
| return -EIO; |
| } |
| |
| return bytecount; |
| } /* udi_send_signal_unpacked() */ |
| |
| |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * udi_send_signal_raw |
| * |
| * Sends a packed signal to UniFi. |
| * |
| * Arguments: |
| * priv Pointer to private context struct |
| * buf Pointer to request structure and data to send |
| * buflen Length of data in data pointer. |
| * |
| * Returns: |
| * Number of bytes written, error otherwise. |
| * |
| * Notes: |
| * All clients that use this function to send a signal to the unifi |
| * must use the wire formatted structures. |
| * --------------------------------------------------------------------------- |
| */ |
| static int |
| udi_send_signal_raw(unifi_priv_t *priv, unsigned char *buf, int buflen) |
| { |
| int signal_size; |
| int sig_id; |
| bulk_data_param_t data_ptrs; |
| int i, r; |
| unsigned int num_data_refs; |
| int bytecount; |
| CsrResult csrResult; |
| |
| func_enter(); |
| |
| /* |
| * The signal is the first thing in buf, the signal id is the |
| * first 16 bits of the signal. |
| */ |
| /* Number of bytes in the signal */ |
| sig_id = GET_SIGNAL_ID(buf); |
| signal_size = buflen; |
| signal_size -= GET_PACKED_DATAREF_LEN(buf, 0); |
| signal_size -= GET_PACKED_DATAREF_LEN(buf, 1); |
| if ((signal_size <= 0) || (signal_size > buflen)) { |
| unifi_error(priv, "udi_send_signal_raw - Couldn't find length of signal 0x%x\n", |
| sig_id); |
| func_exit(); |
| return -EINVAL; |
| } |
| unifi_trace(priv, UDBG2, "udi_send_signal_raw: signal 0x%.4X len:%d\n", |
| sig_id, signal_size); |
| /* Zero the data ref arrays */ |
| memset(&data_ptrs, 0, sizeof(data_ptrs)); |
| |
| /* |
| * Find the number of associated bulk data packets. Scan through |
| * the data refs to check that we have enough data and pick out |
| * pointers to appended bulk data. |
| */ |
| num_data_refs = 0; |
| bytecount = signal_size; |
| |
| for (i = 0; i < UNIFI_MAX_DATA_REFERENCES; ++i) |
| { |
| unsigned int len = GET_PACKED_DATAREF_LEN(buf, i); |
| unifi_trace(priv, UDBG3, "udi_send_signal_raw: data_ref length = %d\n", len); |
| |
| if (len != 0) { |
| void *dest; |
| |
| csrResult = unifi_net_data_malloc(priv, &data_ptrs.d[i], len); |
| if (csrResult != CSR_RESULT_SUCCESS) { |
| unifi_error(priv, "udi_send_signal_raw: failed to allocate request_data.\n"); |
| return -EIO; |
| } |
| |
| dest = (void*)data_ptrs.d[i].os_data_ptr; |
| memcpy(dest, buf + bytecount, len); |
| |
| bytecount += len; |
| num_data_refs++; |
| } |
| data_ptrs.d[i].data_length = len; |
| } |
| |
| unifi_trace(priv, UDBG3, "Queueing signal 0x%.4X from UDI with %u data refs\n", |
| sig_id, |
| num_data_refs); |
| |
| if (bytecount > buflen) { |
| unifi_error(priv, "udi_send_signal_raw: Not enough data (%d instead of %d)\n", buflen, bytecount); |
| func_exit(); |
| return -EINVAL; |
| } |
| |
| /* Send the signal calling the function that uses the wire-formatted signals. */ |
| r = ul_send_signal_raw(priv, buf, signal_size, &data_ptrs); |
| if (r < 0) { |
| unifi_error(priv, "udi_send_signal_raw: send failed (%d)\n", r); |
| func_exit(); |
| return -EIO; |
| } |
| |
| #ifdef CSR_NATIVE_LINUX |
| if (sig_id == CSR_MLME_POWERMGT_REQUEST_ID) { |
| int power_mode = CSR_GET_UINT16_FROM_LITTLE_ENDIAN((buf + |
| SIZEOF_SIGNAL_HEADER + (UNIFI_MAX_DATA_REFERENCES*SIZEOF_DATAREF))); |
| #ifdef CSR_SUPPORT_WEXT |
| /* Overide the wext power mode to the new value */ |
| priv->wext_conf.power_mode = power_mode; |
| #endif |
| /* Configure deep sleep signaling */ |
| if (power_mode || (priv->interfacePriv[0]->connected == UnifiNotConnected)) { |
| csrResult = unifi_configure_low_power_mode(priv->card, |
| UNIFI_LOW_POWER_ENABLED, |
| UNIFI_PERIODIC_WAKE_HOST_DISABLED); |
| } else { |
| csrResult = unifi_configure_low_power_mode(priv->card, |
| UNIFI_LOW_POWER_DISABLED, |
| UNIFI_PERIODIC_WAKE_HOST_DISABLED); |
| } |
| } |
| #endif |
| |
| func_exit_r(bytecount); |
| |
| return bytecount; |
| } /* udi_send_signal_raw */ |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * unifi_write |
| * |
| * The write() driver entry point. |
| * A UniFi Debug Interface client such as unicli can write a signal |
| * plus bulk data to the driver for sending to the UniFi chip. |
| * |
| * Only one signal may be sent per write operation. |
| * |
| * Arguments: |
| * filp The file descriptor returned by unifi_open() |
| * p The user space buffer to get the data from |
| * len The size of the p buffer |
| * poff |
| * |
| * Returns: |
| * number of bytes written or an error code on failure |
| * --------------------------------------------------------------------------- |
| */ |
| static ssize_t |
| unifi_write(struct file *filp, const char *p, size_t len, loff_t *poff) |
| { |
| ul_client_t *pcli = (ul_client_t*)filp->private_data; |
| unifi_priv_t *priv; |
| unsigned char *buf; |
| unsigned char *bufptr; |
| int remaining; |
| int bytes_written; |
| int r; |
| bulk_data_param_t bulkdata; |
| CsrResult csrResult; |
| |
| func_enter(); |
| |
| priv = uf_find_instance(pcli->instance); |
| if (!priv) { |
| unifi_error(priv, "invalid priv\n"); |
| return -ENODEV; |
| } |
| |
| unifi_trace(priv, UDBG5, "unifi_write: len = %d\n", len); |
| |
| if (!pcli->udi_enabled) { |
| unifi_error(priv, "udi disabled\n"); |
| return -EINVAL; |
| } |
| |
| /* |
| * AMP client sends only one signal at a time, so we can use |
| * unifi_net_data_malloc to save the extra copy. |
| */ |
| if (pcli == priv->amp_client) { |
| int signal_size; |
| int sig_id; |
| unsigned char *signal_buf; |
| char *user_data_buf; |
| |
| csrResult = unifi_net_data_malloc(priv, &bulkdata.d[0], len); |
| if (csrResult != CSR_RESULT_SUCCESS) { |
| unifi_error(priv, "unifi_write: failed to allocate request_data.\n"); |
| func_exit(); |
| return -ENOMEM; |
| } |
| |
| user_data_buf = (char*)bulkdata.d[0].os_data_ptr; |
| |
| /* Get the data from the AMP client. */ |
| if (copy_from_user((void*)user_data_buf, p, len)) { |
| unifi_error(priv, "unifi_write: copy from user failed\n"); |
| unifi_net_data_free(priv, &bulkdata.d[0]); |
| func_exit(); |
| return -EFAULT; |
| } |
| |
| bulkdata.d[1].os_data_ptr = NULL; |
| bulkdata.d[1].data_length = 0; |
| |
| /* Number of bytes in the signal */ |
| sig_id = GET_SIGNAL_ID(bulkdata.d[0].os_data_ptr); |
| signal_size = len; |
| signal_size -= GET_PACKED_DATAREF_LEN(bulkdata.d[0].os_data_ptr, 0); |
| signal_size -= GET_PACKED_DATAREF_LEN(bulkdata.d[0].os_data_ptr, 1); |
| if ((signal_size <= 0) || (signal_size > len)) { |
| unifi_error(priv, "unifi_write - Couldn't find length of signal 0x%x\n", |
| sig_id); |
| unifi_net_data_free(priv, &bulkdata.d[0]); |
| func_exit(); |
| return -EINVAL; |
| } |
| |
| unifi_trace(priv, UDBG2, "unifi_write: signal 0x%.4X len:%d\n", |
| sig_id, signal_size); |
| |
| /* Allocate a buffer for the signal */ |
| signal_buf = kmalloc(signal_size, GFP_KERNEL); |
| if (!signal_buf) { |
| unifi_net_data_free(priv, &bulkdata.d[0]); |
| func_exit(); |
| return -ENOMEM; |
| } |
| |
| /* Get the signal from the os_data_ptr */ |
| memcpy(signal_buf, bulkdata.d[0].os_data_ptr, signal_size); |
| signal_buf[5] = (pcli->sender_id >> 8) & 0xff; |
| |
| if (signal_size < len) { |
| /* Remove the signal from the os_data_ptr */ |
| bulkdata.d[0].data_length -= signal_size; |
| bulkdata.d[0].os_data_ptr += signal_size; |
| } else { |
| bulkdata.d[0].data_length = 0; |
| bulkdata.d[0].os_data_ptr = NULL; |
| } |
| |
| /* Send the signal calling the function that uses the wire-formatted signals. */ |
| r = ul_send_signal_raw(priv, signal_buf, signal_size, &bulkdata); |
| if (r < 0) { |
| unifi_error(priv, "unifi_write: send failed (%d)\n", r); |
| if (bulkdata.d[0].os_data_ptr != NULL) { |
| unifi_net_data_free(priv, &bulkdata.d[0]); |
| } |
| } |
| |
| /* Free the signal buffer and return */ |
| kfree(signal_buf); |
| return len; |
| } |
| |
| buf = kmalloc(len, GFP_KERNEL); |
| if (!buf) { |
| return -ENOMEM; |
| } |
| |
| /* Get the data from the client (SME or Unicli). */ |
| if (copy_from_user((void*)buf, p, len)) { |
| unifi_error(priv, "copy from user failed\n"); |
| kfree(buf); |
| return -EFAULT; |
| } |
| |
| /* |
| * In SME userspace build read() contains a SYS or MGT message. |
| * Note that even though the SME sends one signal at a time, we can not |
| * use unifi_net_data_malloc because in the early stages, before having |
| * initialised the core, it will fail since the I/O block size is unknown. |
| */ |
| #ifdef CSR_SME_USERSPACE |
| if (pcli->configuration & CLI_SME_USERSPACE) { |
| CsrWifiRouterTransportRecv(priv, buf, len); |
| kfree(buf); |
| return len; |
| } |
| #endif |
| |
| /* ul_send_signal_raw will do a sanity check of len against signal content */ |
| |
| /* |
| * udi_send_signal_raw() and udi_send_signal_unpacked() return the number of bytes consumed. |
| * A write call can pass multiple signal concatenated together. |
| */ |
| bytes_written = 0; |
| remaining = len; |
| bufptr = buf; |
| while (remaining > 0) |
| { |
| int r; |
| |
| /* |
| * Set the SenderProcessId. |
| * The SignalPrimitiveHeader is the first 3 16-bit words of the signal, |
| * the SenderProcessId is bytes 4,5. |
| * The MSB of the sender ID needs to be set to the client ID. |
| * The LSB is controlled by the SME. |
| */ |
| bufptr[5] = (pcli->sender_id >> 8) & 0xff; |
| |
| /* use the appropriate interface, depending on the clients' configuration */ |
| if (pcli->configuration & CLI_USING_WIRE_FORMAT) { |
| unifi_trace(priv, UDBG1, "unifi_write: call udi_send_signal().\n"); |
| r = udi_send_signal_raw(priv, bufptr, remaining); |
| } else { |
| r = udi_send_signal_unpacked(priv, bufptr, remaining); |
| } |
| if (r < 0) { |
| /* Set the return value to the error code */ |
| unifi_error(priv, "unifi_write: (udi or sme)_send_signal() returns %d\n", r); |
| bytes_written = r; |
| break; |
| } |
| bufptr += r; |
| remaining -= r; |
| bytes_written += r; |
| } |
| |
| kfree(buf); |
| |
| func_exit_r(bytes_written); |
| |
| return bytes_written; |
| } /* unifi_write() */ |
| |
| |
| static const char* build_type_to_string(unsigned char build_type) |
| { |
| switch (build_type) |
| { |
| case UNIFI_BUILD_NME: return "NME"; |
| case UNIFI_BUILD_WEXT: return "WEXT"; |
| case UNIFI_BUILD_AP: return "AP"; |
| } |
| return "unknown"; |
| } |
| |
| |
| /* |
| * ---------------------------------------------------------------- |
| * unifi_ioctl |
| * |
| * Ioctl handler for unifi driver. |
| * |
| * Arguments: |
| * inodep Pointer to inode structure. |
| * filp Pointer to file structure. |
| * cmd Ioctl cmd passed by user. |
| * arg Ioctl arg passed by user. |
| * |
| * Returns: |
| * 0 on success, -ve error code on error. |
| * ---------------------------------------------------------------- |
| */ |
| static long |
| unifi_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
| { |
| ul_client_t *pcli = (ul_client_t*)filp->private_data; |
| unifi_priv_t *priv; |
| struct net_device *dev; |
| int r = 0; |
| int int_param, i; |
| u8* buf; |
| CsrResult csrResult; |
| #if (defined CSR_SUPPORT_SME) |
| unifi_cfg_command_t cfg_cmd; |
| #if (defined CSR_SUPPORT_WEXT) |
| CsrWifiSmeCoexConfig coex_config; |
| unsigned char uchar_param; |
| unsigned char varbind[MAX_VARBIND_LENGTH]; |
| int vblen; |
| #endif |
| #endif |
| unifi_putest_command_t putest_cmd; |
| |
| priv = uf_find_instance(pcli->instance); |
| if (!priv) { |
| unifi_error(priv, "ioctl error: unknown instance=%d\n", pcli->instance); |
| r = -ENODEV; |
| goto out; |
| } |
| unifi_trace(priv, UDBG5, "unifi_ioctl: cmd=0x%X, arg=0x%lX\n", cmd, arg); |
| |
| switch (cmd) { |
| |
| case UNIFI_GET_UDI_ENABLE: |
| unifi_trace(priv, UDBG4, "UniFi Get UDI Enable\n"); |
| |
| down(&priv->udi_logging_mutex); |
| int_param = (priv->logging_client == NULL) ? 0 : 1; |
| up(&priv->udi_logging_mutex); |
| |
| if (put_user(int_param, (int*)arg)) |
| { |
| unifi_error(priv, "UNIFI_GET_UDI_ENABLE: Failed to copy to user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| break; |
| |
| case UNIFI_SET_UDI_ENABLE: |
| unifi_trace(priv, UDBG4, "UniFi Set UDI Enable\n"); |
| if (get_user(int_param, (int*)arg)) |
| { |
| unifi_error(priv, "UNIFI_SET_UDI_ENABLE: Failed to copy from user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| #ifdef CSR_WIFI_HIP_DEBUG_OFFLINE |
| if (log_hip_signals) { |
| unifi_error(priv, "omnicli cannot be used when log_hip_signals is used\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| #endif |
| |
| down(&priv->udi_logging_mutex); |
| if (int_param) { |
| pcli->event_hook = udi_log_event; |
| unifi_set_udi_hook(priv->card, logging_handler); |
| /* Log all signals by default */ |
| for (i = 0; i < SIG_FILTER_SIZE; i++) { |
| pcli->signal_filter[i] = 0xFFFF; |
| } |
| priv->logging_client = pcli; |
| |
| } else { |
| priv->logging_client = NULL; |
| pcli->event_hook = NULL; |
| } |
| up(&priv->udi_logging_mutex); |
| |
| break; |
| |
| case UNIFI_SET_MIB: |
| unifi_trace(priv, UDBG4, "UniFi Set MIB\n"); |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| /* Read first 2 bytes and check length */ |
| if (copy_from_user((void*)varbind, (void*)arg, 2)) { |
| unifi_error(priv, |
| "UNIFI_SET_MIB: Failed to copy in varbind header\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| vblen = varbind[1]; |
| if ((vblen + 2) > MAX_VARBIND_LENGTH) { |
| unifi_error(priv, |
| "UNIFI_SET_MIB: Varbind too long (%d, limit %d)\n", |
| (vblen+2), MAX_VARBIND_LENGTH); |
| r = -EINVAL; |
| goto out; |
| } |
| /* Read rest of varbind */ |
| if (copy_from_user((void*)(varbind+2), (void*)(arg+2), vblen)) { |
| unifi_error(priv, "UNIFI_SET_MIB: Failed to copy in varbind\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| /* send to SME */ |
| vblen += 2; |
| r = sme_mgt_mib_set(priv, varbind, vblen); |
| if (r) { |
| goto out; |
| } |
| #else |
| unifi_notice(priv, "UNIFI_SET_MIB: Unsupported.\n"); |
| #endif /* CSR_SUPPORT_WEXT */ |
| break; |
| |
| case UNIFI_GET_MIB: |
| unifi_trace(priv, UDBG4, "UniFi Get MIB\n"); |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| /* Read first 2 bytes and check length */ |
| if (copy_from_user((void*)varbind, (void*)arg, 2)) { |
| unifi_error(priv, "UNIFI_GET_MIB: Failed to copy in varbind header\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| vblen = varbind[1]; |
| if ((vblen+2) > MAX_VARBIND_LENGTH) { |
| unifi_error(priv, "UNIFI_GET_MIB: Varbind too long (%d, limit %d)\n", |
| (vblen+2), MAX_VARBIND_LENGTH); |
| r = -EINVAL; |
| goto out; |
| } |
| /* Read rest of varbind */ |
| if (copy_from_user((void*)(varbind+2), (void*)(arg+2), vblen)) { |
| unifi_error(priv, "UNIFI_GET_MIB: Failed to copy in varbind\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| vblen += 2; |
| r = sme_mgt_mib_get(priv, varbind, &vblen); |
| if (r) { |
| goto out; |
| } |
| /* copy out varbind */ |
| if (vblen > MAX_VARBIND_LENGTH) { |
| unifi_error(priv, |
| "UNIFI_GET_MIB: Varbind result too long (%d, limit %d)\n", |
| vblen, MAX_VARBIND_LENGTH); |
| r = -EINVAL; |
| goto out; |
| } |
| if (copy_to_user((void*)arg, varbind, vblen)) { |
| r = -EFAULT; |
| goto out; |
| } |
| #else |
| unifi_notice(priv, "UNIFI_GET_MIB: Unsupported.\n"); |
| #endif /* CSR_SUPPORT_WEXT */ |
| break; |
| |
| case UNIFI_CFG: |
| #if (defined CSR_SUPPORT_SME) |
| if (get_user(cfg_cmd, (unifi_cfg_command_t*)arg)) |
| { |
| unifi_error(priv, "UNIFI_CFG: Failed to get the command\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| unifi_trace(priv, UDBG1, "UNIFI_CFG: Command is %d (t=%u) sz=%d\n", |
| cfg_cmd, jiffies_to_msecs(jiffies), sizeof(unifi_cfg_command_t)); |
| switch (cfg_cmd) { |
| case UNIFI_CFG_POWER: |
| r = unifi_cfg_power(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_POWERSAVE: |
| r = unifi_cfg_power_save(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_POWERSUPPLY: |
| r = unifi_cfg_power_supply(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_FILTER: |
| r = unifi_cfg_packet_filters(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_GET: |
| r = unifi_cfg_get_info(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_WMM_QOSINFO: |
| r = unifi_cfg_wmm_qos_info(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_WMM_ADDTS: |
| r = unifi_cfg_wmm_addts(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_WMM_DELTS: |
| r = unifi_cfg_wmm_delts(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_STRICT_DRAFT_N: |
| r = unifi_cfg_strict_draft_n(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_CFG_ENABLE_OKC: |
| r = unifi_cfg_enable_okc(priv, (unsigned char*)arg); |
| break; |
| #ifdef CSR_SUPPORT_SME |
| case UNIFI_CFG_CORE_DUMP: |
| CsrWifiRouterCtrlWifiOffIndSend(priv->CSR_WIFI_SME_IFACEQUEUE,0,CSR_WIFI_SME_CONTROL_INDICATION_ERROR); |
| unifi_trace(priv, UDBG2, "UNIFI_CFG_CORE_DUMP: sent wifi off indication\n"); |
| break; |
| #endif |
| #ifdef CSR_SUPPORT_WEXT_AP |
| case UNIFI_CFG_SET_AP_CONFIG: |
| r= unifi_cfg_set_ap_config(priv,(unsigned char*)arg); |
| break; |
| #endif |
| default: |
| unifi_error(priv, "UNIFI_CFG: Unknown Command (%d)\n", cfg_cmd); |
| r = -EINVAL; |
| goto out; |
| } |
| #endif |
| |
| break; |
| |
| case UNIFI_PUTEST: |
| if (get_user(putest_cmd, (unifi_putest_command_t*)arg)) |
| { |
| unifi_error(priv, "UNIFI_PUTEST: Failed to get the command\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| unifi_trace(priv, UDBG1, "UNIFI_PUTEST: Command is %s\n", |
| trace_putest_cmdid(putest_cmd)); |
| switch (putest_cmd) { |
| case UNIFI_PUTEST_START: |
| r = unifi_putest_start(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_STOP: |
| r = unifi_putest_stop(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_SET_SDIO_CLOCK: |
| r = unifi_putest_set_sdio_clock(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_CMD52_READ: |
| r = unifi_putest_cmd52_read(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_CMD52_BLOCK_READ: |
| r = unifi_putest_cmd52_block_read(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_CMD52_WRITE: |
| r = unifi_putest_cmd52_write(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_DL_FW: |
| r = unifi_putest_dl_fw(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_DL_FW_BUFF: |
| r = unifi_putest_dl_fw_buff(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_COREDUMP_PREPARE: |
| r = unifi_putest_coredump_prepare(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_GP_READ16: |
| r = unifi_putest_gp_read16(priv, (unsigned char*)arg); |
| break; |
| case UNIFI_PUTEST_GP_WRITE16: |
| r = unifi_putest_gp_write16(priv, (unsigned char*)arg); |
| break; |
| default: |
| unifi_error(priv, "UNIFI_PUTEST: Unknown Command (%d)\n", putest_cmd); |
| r = -EINVAL; |
| goto out; |
| } |
| |
| break; |
| case UNIFI_BUILD_TYPE: |
| unifi_trace(priv, UDBG2, "UNIFI_BUILD_TYPE userspace=%s\n", build_type_to_string(*(unsigned char*)arg)); |
| #ifndef CSR_SUPPORT_WEXT_AP |
| if (UNIFI_BUILD_AP == *(unsigned char*)arg) |
| { |
| unifi_error(priv, "Userspace has AP support, which is incompatible\n"); |
| } |
| #endif |
| |
| #ifndef CSR_SUPPORT_WEXT |
| if (UNIFI_BUILD_WEXT == *(unsigned char*)arg) |
| { |
| unifi_error(priv, "Userspace has WEXT support, which is incompatible\n"); |
| } |
| #endif |
| break; |
| case UNIFI_INIT_HW: |
| unifi_trace(priv, UDBG2, "UNIFI_INIT_HW.\n"); |
| priv->init_progress = UNIFI_INIT_NONE; |
| |
| #if defined(CSR_SUPPORT_WEXT) || defined (CSR_NATIVE_LINUX) |
| /* At this point we are ready to start the SME. */ |
| r = sme_mgt_wifi_on(priv); |
| if (r) { |
| goto out; |
| } |
| #endif |
| |
| break; |
| |
| case UNIFI_INIT_NETDEV: |
| { |
| /* get the proper interfaceTagId */ |
| u16 interfaceTag=0; |
| netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; |
| |
| dev = priv->netdev[interfaceTag]; |
| unifi_trace(priv, UDBG2, "UNIFI_INIT_NETDEV.\n"); |
| |
| if (copy_from_user((void*)dev->dev_addr, (void*)arg, 6)) { |
| r = -EFAULT; |
| goto out; |
| } |
| |
| /* Attach the network device to the stack */ |
| if (!interfacePriv->netdev_registered) |
| { |
| r = uf_register_netdev(priv,interfaceTag); |
| if (r) { |
| unifi_error(priv, "Failed to register the network device.\n"); |
| goto out; |
| } |
| } |
| |
| /* Apply scheduled interrupt mode, if requested by module param */ |
| if (run_bh_once != -1) { |
| unifi_set_interrupt_mode(priv->card, (u32)run_bh_once); |
| } |
| |
| priv->init_progress = UNIFI_INIT_COMPLETED; |
| |
| /* Firmware initialisation is complete, so let the SDIO bus |
| * clock be raised when convienent to the core. |
| */ |
| unifi_request_max_sdio_clock(priv->card); |
| |
| #ifdef CSR_SUPPORT_WEXT |
| /* Notify the Android wpa_supplicant that we are ready */ |
| wext_send_started_event(priv); |
| #endif |
| |
| unifi_info(priv, "UniFi ready\n"); |
| |
| #ifdef ANDROID_BUILD |
| /* Release the wakelock */ |
| unifi_trace(priv, UDBG1, "netdev_init: release wake lock\n"); |
| wake_unlock(&unifi_sdio_wake_lock); |
| #endif |
| #ifdef CSR_NATIVE_SOFTMAC /* For softmac dev, force-enable the network interface rather than wait for a connected-ind */ |
| { |
| struct net_device *dev = priv->netdev[interfaceTag]; |
| #ifdef CSR_SUPPORT_WEXT |
| interfacePriv->wait_netdev_change = TRUE; |
| #endif |
| netif_carrier_on(dev); |
| } |
| #endif |
| } |
| break; |
| case UNIFI_GET_INIT_STATUS: |
| unifi_trace(priv, UDBG2, "UNIFI_GET_INIT_STATUS.\n"); |
| if (put_user(priv->init_progress, (int*)arg)) |
| { |
| printk(KERN_ERR "UNIFI_GET_INIT_STATUS: Failed to copy to user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| break; |
| |
| case UNIFI_KICK: |
| unifi_trace(priv, UDBG4, "Kick UniFi\n"); |
| unifi_sdio_interrupt_handler(priv->card); |
| break; |
| |
| case UNIFI_SET_DEBUG: |
| unifi_debug = arg; |
| unifi_trace(priv, UDBG4, "unifi_debug set to %d\n", unifi_debug); |
| break; |
| |
| case UNIFI_SET_TRACE: |
| /* no longer supported */ |
| r = -EINVAL; |
| break; |
| |
| |
| case UNIFI_SET_UDI_LOG_MASK: |
| { |
| unifiio_filter_t udi_filter; |
| uint16_t *sig_ids_addr; |
| #define UF_MAX_SIG_IDS 128 /* Impose a sensible limit */ |
| |
| if (copy_from_user((void*)(&udi_filter), (void*)arg, sizeof(udi_filter))) { |
| r = -EFAULT; |
| goto out; |
| } |
| if ((udi_filter.action < UfSigFil_AllOn) || |
| (udi_filter.action > UfSigFil_SelectOff)) |
| { |
| printk(KERN_WARNING |
| "UNIFI_SET_UDI_LOG_MASK: Bad action value: %d\n", |
| udi_filter.action); |
| r = -EINVAL; |
| goto out; |
| } |
| /* No signal list for "All" actions */ |
| if ((udi_filter.action == UfSigFil_AllOn) || |
| (udi_filter.action == UfSigFil_AllOff)) |
| { |
| udi_filter.num_sig_ids = 0; |
| } |
| |
| if (udi_filter.num_sig_ids > UF_MAX_SIG_IDS) { |
| printk(KERN_WARNING |
| "UNIFI_SET_UDI_LOG_MASK: too many signal ids (%d, max %d)\n", |
| udi_filter.num_sig_ids, UF_MAX_SIG_IDS); |
| r = -EINVAL; |
| goto out; |
| } |
| |
| /* Copy in signal id list if given */ |
| if (udi_filter.num_sig_ids > 0) { |
| /* Preserve userspace address of sig_ids array */ |
| sig_ids_addr = udi_filter.sig_ids; |
| /* Allocate kernel memory for sig_ids and copy to it */ |
| udi_filter.sig_ids = |
| kmalloc(udi_filter.num_sig_ids * sizeof(uint16_t), GFP_KERNEL); |
| if (!udi_filter.sig_ids) { |
| r = -ENOMEM; |
| goto out; |
| } |
| if (copy_from_user((void*)udi_filter.sig_ids, |
| (void*)sig_ids_addr, |
| udi_filter.num_sig_ids * sizeof(uint16_t))) |
| { |
| kfree(udi_filter.sig_ids); |
| r = -EFAULT; |
| goto out; |
| } |
| } |
| |
| udi_set_log_filter(pcli, &udi_filter); |
| |
| if (udi_filter.num_sig_ids > 0) { |
| kfree(udi_filter.sig_ids); |
| } |
| } |
| break; |
| |
| case UNIFI_SET_AMP_ENABLE: |
| unifi_trace(priv, UDBG4, "UniFi Set AMP Enable\n"); |
| if (get_user(int_param, (int*)arg)) |
| { |
| unifi_error(priv, "UNIFI_SET_AMP_ENABLE: Failed to copy from user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| if (int_param) { |
| priv->amp_client = pcli; |
| } else { |
| priv->amp_client = NULL; |
| } |
| |
| int_param = 0; |
| buf = (u8*)&int_param; |
| buf[0] = UNIFI_SOFT_COMMAND_Q_LENGTH - 1; |
| buf[1] = UNIFI_SOFT_TRAFFIC_Q_LENGTH - 1; |
| if (copy_to_user((void*)arg, &int_param, sizeof(int))) { |
| r = -EFAULT; |
| goto out; |
| } |
| break; |
| |
| case UNIFI_SET_UDI_SNAP_MASK: |
| { |
| unifiio_snap_filter_t snap_filter; |
| |
| if (copy_from_user((void*)(&snap_filter), (void*)arg, sizeof(snap_filter))) { |
| r = -EFAULT; |
| goto out; |
| } |
| |
| if (pcli->snap_filter.count) { |
| pcli->snap_filter.count = 0; |
| kfree(pcli->snap_filter.protocols); |
| } |
| |
| if (snap_filter.count == 0) { |
| break; |
| } |
| |
| pcli->snap_filter.protocols = kmalloc(snap_filter.count * sizeof(u16), GFP_KERNEL); |
| if (!pcli->snap_filter.protocols) { |
| r = -ENOMEM; |
| goto out; |
| } |
| if (copy_from_user((void*)pcli->snap_filter.protocols, |
| (void*)snap_filter.protocols, |
| snap_filter.count * sizeof(u16))) |
| { |
| kfree(pcli->snap_filter.protocols); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| pcli->snap_filter.count = snap_filter.count; |
| |
| } |
| break; |
| |
| case UNIFI_SME_PRESENT: |
| { |
| u8 ind; |
| unifi_trace(priv, UDBG4, "UniFi SME Present IOCTL.\n"); |
| if (copy_from_user((void*)(&int_param), (void*)arg, sizeof(int))) |
| { |
| printk(KERN_ERR "UNIFI_SME_PRESENT: Failed to copy from user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| priv->sme_is_present = int_param; |
| if (priv->sme_is_present == 1) { |
| ind = CONFIG_SME_PRESENT; |
| } else { |
| ind = CONFIG_SME_NOT_PRESENT; |
| } |
| /* Send an indication to the helper app. */ |
| ul_log_config_ind(priv, &ind, sizeof(u8)); |
| } |
| break; |
| |
| case UNIFI_CFG_PERIOD_TRAFFIC: |
| { |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| CsrWifiSmeCoexConfig coexConfig; |
| #endif /* CSR_SUPPORT_SME && CSR_SUPPORT_WEXT */ |
| unifi_trace(priv, UDBG4, "UniFi Configure Periodic Traffic.\n"); |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| if (copy_from_user((void*)(&uchar_param), (void*)arg, sizeof(unsigned char))) { |
| unifi_error(priv, "UNIFI_CFG_PERIOD_TRAFFIC: Failed to copy from user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| if (uchar_param == 0) { |
| r = sme_mgt_coex_config_get(priv, &coexConfig); |
| if (r) { |
| unifi_error(priv, "UNIFI_CFG_PERIOD_TRAFFIC: Get unifi_CoexInfoValue failed.\n"); |
| goto out; |
| } |
| if (copy_to_user((void*)(arg + 1), |
| (void*)&coexConfig, |
| sizeof(CsrWifiSmeCoexConfig))) { |
| r = -EFAULT; |
| goto out; |
| } |
| goto out; |
| } |
| |
| if (copy_from_user((void*)(&coex_config), (void*)(arg + 1), sizeof(CsrWifiSmeCoexConfig))) |
| { |
| unifi_error(priv, "UNIFI_CFG_PERIOD_TRAFFIC: Failed to copy from user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| |
| coexConfig = coex_config; |
| r = sme_mgt_coex_config_set(priv, &coexConfig); |
| if (r) { |
| unifi_error(priv, "UNIFI_CFG_PERIOD_TRAFFIC: Set unifi_CoexInfoValue failed.\n"); |
| goto out; |
| } |
| |
| #endif /* CSR_SUPPORT_SME && CSR_SUPPORT_WEXT */ |
| break; |
| } |
| case UNIFI_CFG_UAPSD_TRAFFIC: |
| unifi_trace(priv, UDBG4, "UniFi Configure U-APSD Mask.\n"); |
| #if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT) |
| if (copy_from_user((void*)(&uchar_param), (void*)arg, sizeof(unsigned char))) { |
| unifi_error(priv, "UNIFI_CFG_UAPSD_TRAFFIC: Failed to copy from user\n"); |
| r = -EFAULT; |
| goto out; |
| } |
| unifi_trace(priv, UDBG4, "New U-APSD Mask: 0x%x\n", uchar_param); |
| #endif /* CSR_SUPPORT_SME && CSR_SUPPORT_WEXT */ |
| break; |
| |
| #ifndef UNIFI_DISABLE_COREDUMP |
| case UNIFI_COREDUMP_GET_REG: |
| unifi_trace(priv, UDBG4, "Mini-coredump data request\n"); |
| { |
| unifiio_coredump_req_t dump_req; /* Public OS layer structure */ |
| unifi_coredump_req_t priv_req; /* Private HIP structure */ |
| |
| if (copy_from_user((void*)(&dump_req), (void*)arg, sizeof(dump_req))) { |
| r = -EFAULT; |
| goto out; |
| } |
| memset(&priv_req, 0, sizeof(priv_req)); |
| priv_req.index = dump_req.index; |
| priv_req.offset = dump_req.offset; |
| |
| /* Convert OS-layer's XAP memory space ID to HIP's ID in case they differ */ |
| switch (dump_req.space) { |
| case UNIFIIO_COREDUMP_MAC_REG: priv_req.space = UNIFI_COREDUMP_MAC_REG; break; |
| case UNIFIIO_COREDUMP_PHY_REG: priv_req.space = UNIFI_COREDUMP_PHY_REG; break; |
| case UNIFIIO_COREDUMP_SH_DMEM: priv_req.space = UNIFI_COREDUMP_SH_DMEM; break; |
| case UNIFIIO_COREDUMP_MAC_DMEM: priv_req.space = UNIFI_COREDUMP_MAC_DMEM; break; |
| case UNIFIIO_COREDUMP_PHY_DMEM: priv_req.space = UNIFI_COREDUMP_PHY_DMEM; break; |
| case UNIFIIO_COREDUMP_TRIGGER_MAGIC: priv_req.space = UNIFI_COREDUMP_TRIGGER_MAGIC; break; |
| default: |
| r = -EINVAL; |
| goto out; |
| } |
| |
| if (priv_req.space == UNIFI_COREDUMP_TRIGGER_MAGIC) { |
| /* Force a coredump grab now */ |
| unifi_trace(priv, UDBG2, "UNIFI_COREDUMP_GET_REG: Force capture\n"); |
| csrResult = unifi_coredump_capture(priv->card, &priv_req); |
| r = CsrHipResultToStatus(csrResult); |
| unifi_trace(priv, UDBG5, "UNIFI_COREDUMP_GET_REG: status %d\n", r); |
| } else { |
| /* Retrieve the appropriate register entry */ |
| csrResult = unifi_coredump_get_value(priv->card, &priv_req); |
| r = CsrHipResultToStatus(csrResult); |
| if (r) { |
| unifi_trace(priv, UDBG5, "UNIFI_COREDUMP_GET_REG: Status %d\n", r); |
| goto out; |
| } |
| /* Update the OS-layer structure with values returned in the private */ |
| dump_req.value = priv_req.value; |
| dump_req.timestamp = priv_req.timestamp; |
| dump_req.requestor = priv_req.requestor; |
| dump_req.serial = priv_req.serial; |
| dump_req.chip_ver = priv_req.chip_ver; |
| dump_req.fw_ver = priv_req.fw_ver; |
| dump_req.drv_build = 0; |
| |
| unifi_trace(priv, UDBG6, |
| "Dump: %d (seq %d): V:0x%04x (%d) @0x%02x:%04x = 0x%04x\n", |
| dump_req.index, dump_req.serial, |
| dump_req.chip_ver, dump_req.drv_build, |
| dump_req.space, dump_req.offset, dump_req.value); |
| } |
| if (copy_to_user((void*)arg, (void*)&dump_req, sizeof(dump_req))) { |
| r = -EFAULT; |
| goto out; |
| } |
| } |
| break; |
| #endif |
| default: |
| r = -EINVAL; |
| } |
| |
| out: |
| return (long)r; |
| } /* unifi_ioctl() */ |
| |
| |
| |
| static unsigned int |
| unifi_poll(struct file *filp, poll_table *wait) |
| { |
| ul_client_t *pcli = (ul_client_t*)filp->private_data; |
| unsigned int mask = 0; |
| int ready; |
| |
| func_enter(); |
| |
| ready = !list_empty(&pcli->udi_log); |
| |
| poll_wait(filp, &pcli->udi_wq, wait); |
| |
| if (ready) { |
| mask |= POLLIN | POLLRDNORM; /* readable */ |
| } |
| |
| func_exit(); |
| |
| return mask; |
| } /* unifi_poll() */ |
| |
| |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * udi_set_log_filter |
| * |
| * Configure the bit mask that determines which signal primitives are |
| * passed to the logging process. |
| * |
| * Arguments: |
| * pcli Pointer to the client to configure. |
| * udi_filter Pointer to a unifiio_filter_t containing instructions. |
| * |
| * Returns: |
| * None. |
| * |
| * Notes: |
| * SigGetFilterPos() returns a 32-bit value that contains an index and a |
| * mask for accessing a signal_filter array. The top 16 bits specify an |
| * index into a signal_filter, the bottom 16 bits specify a mask to |
| * apply. |
| * --------------------------------------------------------------------------- |
| */ |
| static void |
| udi_set_log_filter(ul_client_t *pcli, unifiio_filter_t *udi_filter) |
| { |
| u32 filter_pos; |
| int i; |
| |
| if (udi_filter->action == UfSigFil_AllOn) |
| { |
| for (i = 0; i < SIG_FILTER_SIZE; i++) { |
| pcli->signal_filter[i] = 0xFFFF; |
| } |
| } |
| else if (udi_filter->action == UfSigFil_AllOff) |
| { |
| for (i = 0; i < SIG_FILTER_SIZE; i++) { |
| pcli->signal_filter[i] = 0; |
| } |
| } |
| else if (udi_filter->action == UfSigFil_SelectOn) |
| { |
| for (i = 0; i < udi_filter->num_sig_ids; i++) { |
| filter_pos = SigGetFilterPos(udi_filter->sig_ids[i]); |
| if (filter_pos == 0xFFFFFFFF) |
| { |
| printk(KERN_WARNING |
| "Unrecognised signal id (0x%X) specifed in logging filter\n", |
| udi_filter->sig_ids[i]); |
| } else { |
| pcli->signal_filter[filter_pos >> 16] |= (filter_pos & 0xFFFF); |
| } |
| } |
| } |
| else if (udi_filter->action == UfSigFil_SelectOff) |
| { |
| for (i = 0; i < udi_filter->num_sig_ids; i++) { |
| filter_pos = SigGetFilterPos(udi_filter->sig_ids[i]); |
| if (filter_pos == 0xFFFFFFFF) |
| { |
| printk(KERN_WARNING |
| "Unrecognised signal id (0x%X) specifed in logging filter\n", |
| udi_filter->sig_ids[i]); |
| } else { |
| pcli->signal_filter[filter_pos >> 16] &= ~(filter_pos & 0xFFFF); |
| } |
| } |
| } |
| |
| } /* udi_set_log_filter() */ |
| |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * udi_log_event |
| * |
| * Callback function to be registered as the UDI hook callback. |
| * Copies the signal content into a new udi_log_t struct and adds |
| * it to the read queue for this UDI client. |
| * |
| * Arguments: |
| * pcli A pointer to the client instance. |
| * signal Pointer to the received signal. |
| * signal_len Size of the signal structure in bytes. |
| * bulkdata Pointers to any associated bulk data. |
| * dir Direction of the signal. Zero means from host, |
| * non-zero means to host. |
| * |
| * Returns: |
| * None. |
| * --------------------------------------------------------------------------- |
| */ |
| void |
| udi_log_event(ul_client_t *pcli, |
| const u8 *signal, int signal_len, |
| const bulk_data_param_t *bulkdata, |
| int dir) |
| { |
| udi_log_t *logptr; |
| u8 *p; |
| int i; |
| int total_len; |
| udi_msg_t *msgptr; |
| u32 filter_pos; |
| #ifdef OMNICLI_LINUX_EXTRA_LOG |
| static volatile unsigned int printk_cpu = UINT_MAX; |
| unsigned long long t; |
| unsigned long nanosec_rem; |
| unsigned long n_1000; |
| #endif |
| |
| func_enter(); |
| |
| /* Just a sanity check */ |
| if ((signal == NULL) || (signal_len <= 0)) { |
| return; |
| } |
| |
| #ifdef CSR_WIFI_HIP_DEBUG_OFFLINE |
| /* When HIP offline signal logging is enabled, omnicli cannot run */ |
| if (log_hip_signals) |
| { |
| /* Add timestamp */ |
| if (log_hip_signals & UNIFI_LOG_HIP_SIGNALS_FILTER_TIMESTAMP) |
| { |
| int timestamp = jiffies_to_msecs(jiffies); |
| unifi_debug_log_to_buf("T:"); |
| unifi_debug_log_to_buf("%04X%04X ", *(((u16*)×tamp) + 1), |
| *(u16*)×tamp); |
| } |
| |
| /* Add signal */ |
| unifi_debug_log_to_buf("S%s:%04X R:%04X D:%04X ", |
| dir ? "T" : "F", |
| *(u16*)signal, |
| *(u16*)(signal + 2), |
| *(u16*)(signal + 4)); |
| unifi_debug_hex_to_buf(signal + 6, signal_len - 6); |
| |
| /* Add bulk data (assume 1 bulk data per signal) */ |
| if ((log_hip_signals & UNIFI_LOG_HIP_SIGNALS_FILTER_BULKDATA) && |
| (bulkdata->d[0].data_length > 0)) |
| { |
| unifi_debug_log_to_buf("\nD:"); |
| unifi_debug_hex_to_buf(bulkdata->d[0].os_data_ptr, bulkdata->d[0].data_length); |
| } |
| unifi_debug_log_to_buf("\n"); |
| |
| return; |
| } |
| #endif |
| |
| #ifdef CSR_NATIVE_LINUX |
| uf_native_process_udi_signal(pcli, signal, signal_len, bulkdata, dir); |
| #endif |
| |
| /* |
| * Apply the logging filter - only report signals that have their |
| * bit set in the filter mask. |
| */ |
| filter_pos = SigGetFilterPos(GET_SIGNAL_ID(signal)); |
| |
| if ((filter_pos != 0xFFFFFFFF) && |
| ((pcli->signal_filter[filter_pos >> 16] & (filter_pos & 0xFFFF)) == 0)) |
| { |
| /* Signal is not wanted by client */ |
| return; |
| } |
| |
| |
| /* Calculate the buffer we need to store signal plus bulk data */ |
| total_len = signal_len; |
| for (i = 0; i < UNIFI_MAX_DATA_REFERENCES; i++) { |
| total_len += bulkdata->d[i].data_length; |
| } |
| |
| /* Allocate log structure plus actual signal. */ |
| logptr = (udi_log_t *)kmalloc(sizeof(udi_log_t) + total_len, GFP_KERNEL); |
| |
| if (logptr == NULL) { |
| printk(KERN_ERR |
| "Failed to allocate %lu bytes for a UDI log record\n", |
| (long unsigned int)(sizeof(udi_log_t) + total_len)); |
| return; |
| } |
| |
| /* Fill in udi_log struct */ |
| INIT_LIST_HEAD(&logptr->q); |
| msgptr = &logptr->msg; |
| msgptr->length = sizeof(udi_msg_t) + total_len; |
| #ifdef OMNICLI_LINUX_EXTRA_LOG |
| t = cpu_clock(printk_cpu); |
| nanosec_rem = do_div(t, 1000000000); |
| n_1000 = nanosec_rem/1000; |
| msgptr->timestamp = (t <<10 ) | ((unsigned long)(n_1000 >> 10) & 0x3ff); |
| #else |
| msgptr->timestamp = jiffies_to_msecs(jiffies); |
| #endif |
| msgptr->direction = dir; |
| msgptr->signal_length = signal_len; |
| |
| /* Copy signal and bulk data to the log */ |
| p = (u8 *)(msgptr + 1); |
| memcpy(p, signal, signal_len); |
| p += signal_len; |
| |
| /* Append any bulk data */ |
| for (i = 0; i < UNIFI_MAX_DATA_REFERENCES; i++) { |
| int len = bulkdata->d[i].data_length; |
| |
| /* |
| * Len here might not be the same as the length in the bulk data slot. |
| * The slot length will always be even, but len could be odd. |
| */ |
| if (len > 0) { |
| if (bulkdata->d[i].os_data_ptr) { |
| memcpy(p, bulkdata->d[i].os_data_ptr, len); |
| } else { |
| memset(p, 0, len); |
| } |
| p += len; |
| } |
| } |
| |
| /* Add to tail of log queue */ |
| if (down_interruptible(&pcli->udi_sem)) { |
| printk(KERN_WARNING "udi_log_event_q: Failed to get udi sem\n"); |
| kfree(logptr); |
| func_exit(); |
| return; |
| } |
| list_add_tail(&logptr->q, &pcli->udi_log); |
| up(&pcli->udi_sem); |
| |
| /* Wake any waiting user process */ |
| wake_up_interruptible(&pcli->udi_wq); |
| |
| func_exit(); |
| } /* udi_log_event() */ |
| |
| #ifdef CSR_SME_USERSPACE |
| int |
| uf_sme_queue_message(unifi_priv_t *priv, u8 *buffer, int length) |
| { |
| udi_log_t *logptr; |
| udi_msg_t *msgptr; |
| u8 *p; |
| |
| func_enter(); |
| |
| /* Just a sanity check */ |
| if ((buffer == NULL) || (length <= 0)) { |
| return -EINVAL; |
| } |
| |
| /* Allocate log structure plus actual signal. */ |
| logptr = (udi_log_t *)kmalloc(sizeof(udi_log_t) + length, GFP_ATOMIC); |
| if (logptr == NULL) { |
| unifi_error(priv, "Failed to allocate %d bytes for an SME message\n", |
| sizeof(udi_log_t) + length); |
| kfree(buffer); |
| return -ENOMEM; |
| } |
| |
| /* Fill in udi_log struct */ |
| INIT_LIST_HEAD(&logptr->q); |
| msgptr = &logptr->msg; |
| msgptr->length = sizeof(udi_msg_t) + length; |
| msgptr->signal_length = length; |
| |
| /* Copy signal and bulk data to the log */ |
| p = (u8 *)(msgptr + 1); |
| memcpy(p, buffer, length); |
| |
| /* Add to tail of log queue */ |
| down(&udi_mutex); |
| if (priv->sme_cli == NULL) { |
| kfree(logptr); |
| kfree(buffer); |
| up(&udi_mutex); |
| unifi_info(priv, "Message for the SME dropped, SME has gone away\n"); |
| return 0; |
| } |
| |
| down(&priv->sme_cli->udi_sem); |
| list_add_tail(&logptr->q, &priv->sme_cli->udi_log); |
| up(&priv->sme_cli->udi_sem); |
| |
| /* Wake any waiting user process */ |
| wake_up_interruptible(&priv->sme_cli->udi_wq); |
| up(&udi_mutex); |
| |
| /* It is our responsibility to free the buffer allocated in build_packed_*() */ |
| kfree(buffer); |
| |
| func_exit(); |
| |
| return 0; |
| |
| } /* uf_sme_queue_message() */ |
| #endif |
| |
| |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) |
| #define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args) \ |
| device_create(_class, _parent, _devno, _priv, _fmt, _args) |
| #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) |
| #define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args) \ |
| device_create_drvdata(_class, _parent, _devno, _priv, _fmt, _args) |
| #else |
| #define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args) \ |
| device_create(_class, _parent, _devno, _fmt, _args) |
| #endif |
| |
| /* |
| **************************************************************************** |
| * |
| * Driver instantiation |
| * |
| **************************************************************************** |
| */ |
| static struct file_operations unifi_fops = { |
| .owner = THIS_MODULE, |
| .open = unifi_open, |
| .release = unifi_release, |
| .read = unifi_read, |
| .write = unifi_write, |
| .unlocked_ioctl = unifi_ioctl, |
| .poll = unifi_poll, |
| }; |
| |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) |
| #define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args) \ |
| device_create(_class, _parent, _devno, _priv, _fmt, _args) |
| #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) |
| #define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args) \ |
| device_create_drvdata(_class, _parent, _devno, _priv, _fmt, _args) |
| #else |
| #define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args) \ |
| device_create(_class, _parent, _devno, _fmt, _args) |
| #endif |
| |
| static dev_t unifi_first_devno; |
| static struct class *unifi_class; |
| |
| |
| int uf_create_device_nodes(unifi_priv_t *priv, int bus_id) |
| { |
| dev_t devno; |
| int r; |
| |
| cdev_init(&priv->unifi_cdev, &unifi_fops); |
| |
| /* cdev_init() should set the cdev owner, but it does not */ |
| priv->unifi_cdev.owner = THIS_MODULE; |
| |
| devno = MKDEV(MAJOR(unifi_first_devno), |
| MINOR(unifi_first_devno) + (bus_id * 2)); |
| r = cdev_add(&priv->unifi_cdev, devno, 1); |
| if (r) { |
| return r; |
| } |
| |
| #ifdef SDIO_EXPORTS_STRUCT_DEVICE |
| if (!UF_DEVICE_CREATE(unifi_class, priv->unifi_device, |
| devno, priv, "unifi%d", bus_id)) { |
| #else |
| priv->unifi_device = UF_DEVICE_CREATE(unifi_class, NULL, |
| devno, priv, "unifi%d", bus_id); |
| if (priv->unifi_device == NULL) { |
| #endif /* SDIO_EXPORTS_STRUCT_DEVICE */ |
| |
| cdev_del(&priv->unifi_cdev); |
| return -EINVAL; |
| } |
| |
| cdev_init(&priv->unifiudi_cdev, &unifi_fops); |
| |
| /* cdev_init() should set the cdev owner, but it does not */ |
| priv->unifiudi_cdev.owner = THIS_MODULE; |
| |
| devno = MKDEV(MAJOR(unifi_first_devno), |
| MINOR(unifi_first_devno) + (bus_id * 2) + 1); |
| r = cdev_add(&priv->unifiudi_cdev, devno, 1); |
| if (r) { |
| device_destroy(unifi_class, priv->unifi_cdev.dev); |
| cdev_del(&priv->unifi_cdev); |
| return r; |
| } |
| |
| if (!UF_DEVICE_CREATE(unifi_class, |
| #ifdef SDIO_EXPORTS_STRUCT_DEVICE |
| priv->unifi_device, |
| #else |
| NULL, |
| #endif /* SDIO_EXPORTS_STRUCT_DEVICE */ |
| devno, priv, "unifiudi%d", bus_id)) { |
| device_destroy(unifi_class, priv->unifi_cdev.dev); |
| cdev_del(&priv->unifiudi_cdev); |
| cdev_del(&priv->unifi_cdev); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| |
| void uf_destroy_device_nodes(unifi_priv_t *priv) |
| { |
| device_destroy(unifi_class, priv->unifiudi_cdev.dev); |
| device_destroy(unifi_class, priv->unifi_cdev.dev); |
| cdev_del(&priv->unifiudi_cdev); |
| cdev_del(&priv->unifi_cdev); |
| } |
| |
| |
| |
| /* |
| * ---------------------------------------------------------------- |
| * uf_create_debug_device |
| * |
| * Allocates device numbers for unifi character device nodes |
| * and creates a unifi class in sysfs |
| * |
| * Arguments: |
| * fops Pointer to the char device operations structure. |
| * |
| * Returns: |
| * 0 on success, -ve error code on error. |
| * ---------------------------------------------------------------- |
| */ |
| static int |
| uf_create_debug_device(struct file_operations *fops) |
| { |
| int ret; |
| |
| /* Allocate two device numbers for each device. */ |
| ret = alloc_chrdev_region(&unifi_first_devno, 0, MAX_UNIFI_DEVS*2, UNIFI_NAME); |
| if (ret) { |
| unifi_error(NULL, "Failed to add alloc dev numbers: %d\n", ret); |
| return ret; |
| } |
| |
| /* Create a UniFi class */ |
| unifi_class = class_create(THIS_MODULE, UNIFI_NAME); |
| if (IS_ERR(unifi_class)) { |
| unifi_error(NULL, "Failed to create UniFi class\n"); |
| |
| /* Release device numbers */ |
| unregister_chrdev_region(unifi_first_devno, MAX_UNIFI_DEVS*2); |
| unifi_first_devno = 0; |
| return -EINVAL; |
| } |
| |
| return 0; |
| } /* uf_create_debug_device() */ |
| |
| |
| /* |
| * ---------------------------------------------------------------- |
| * uf_remove_debug_device |
| * |
| * Destroys the unifi class and releases the allocated |
| * device numbers for unifi character device nodes. |
| * |
| * Arguments: |
| * |
| * Returns: |
| * ---------------------------------------------------------------- |
| */ |
| static void |
| uf_remove_debug_device(void) |
| { |
| /* Destroy the UniFi class */ |
| class_destroy(unifi_class); |
| |
| /* Release device numbers */ |
| unregister_chrdev_region(unifi_first_devno, MAX_UNIFI_DEVS*2); |
| unifi_first_devno = 0; |
| |
| } /* uf_remove_debug_device() */ |
| |
| |
| /* |
| * --------------------------------------------------------------------------- |
| * |
| * Module loading. |
| * |
| * --------------------------------------------------------------------------- |
| */ |
| int __init |
| unifi_load(void) |
| { |
| int r; |
| |
| printk("UniFi SDIO Driver: %s %s %s\n", |
| CSR_WIFI_VERSION, |
| __DATE__, __TIME__); |
| |
| #ifdef CSR_SME_USERSPACE |
| #ifdef CSR_SUPPORT_WEXT |
| printk("CSR SME with WEXT support\n"); |
| #else |
| printk("CSR SME no WEXT support\n"); |
| #endif /* CSR_SUPPORT_WEXT */ |
| #endif /* CSR_SME_USERSPACE */ |
| |
| #ifdef CSR_NATIVE_LINUX |
| #ifdef CSR_SUPPORT_WEXT |
| #error WEXT unsupported in the native driver |
| #endif |
| printk("CSR native no WEXT support\n"); |
| #endif |
| #ifdef CSR_WIFI_SPLIT_PATCH |
| printk("Split patch support\n"); |
| #endif |
| printk("Kernel %d.%d.%d\n", |
| ((LINUX_VERSION_CODE) >> 16) & 0xff, |
| ((LINUX_VERSION_CODE) >> 8) & 0xff, |
| (LINUX_VERSION_CODE) & 0xff); |
| /* |
| * Instantiate the /dev/unifi* device nodes. |
| * We must do this before registering with the SDIO driver because it |
| * will immediately call the "insert" callback if the card is |
| * already present. |
| */ |
| r = uf_create_debug_device(&unifi_fops); |
| if (r) { |
| return r; |
| } |
| |
| /* Now register with the SDIO driver */ |
| r = uf_sdio_load(); |
| if (r) { |
| uf_remove_debug_device(); |
| return r; |
| } |
| |
| if (sdio_block_size > -1) { |
| unifi_info(NULL, "sdio_block_size %d\n", sdio_block_size); |
| } |
| |
| if (sdio_byte_mode) { |
| unifi_info(NULL, "sdio_byte_mode\n"); |
| } |
| |
| if (disable_power_control) { |
| unifi_info(NULL, "disable_power_control\n"); |
| } |
| |
| if (disable_hw_reset) { |
| unifi_info(NULL, "disable_hw_reset\n"); |
| } |
| |
| if (enable_wol) { |
| unifi_info(NULL, "enable_wol %d\n", enable_wol); |
| } |
| |
| if (run_bh_once != -1) { |
| unifi_info(NULL, "run_bh_once %d\n", run_bh_once); |
| } |
| |
| return 0; |
| } /* unifi_load() */ |
| |
| |
| void __exit |
| unifi_unload(void) |
| { |
| /* The SDIO remove hook will call unifi_disconnect(). */ |
| uf_sdio_unload(); |
| |
| uf_remove_debug_device(); |
| |
| } /* unifi_unload() */ |
| |
| module_init(unifi_load); |
| module_exit(unifi_unload); |
| |
| MODULE_DESCRIPTION("UniFi Device driver"); |
| MODULE_AUTHOR("Cambridge Silicon Radio Ltd."); |
| MODULE_LICENSE("GPL and additional rights"); |