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Diffstat (limited to 'drivers/staging/csr/firmware.c')
-rw-r--r--drivers/staging/csr/firmware.c396
1 files changed, 0 insertions, 396 deletions
diff --git a/drivers/staging/csr/firmware.c b/drivers/staging/csr/firmware.c
deleted file mode 100644
index b42a4d6a0c36..000000000000
--- a/drivers/staging/csr/firmware.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * ---------------------------------------------------------------------------
- * FILE: firmware.c
- *
- * PURPOSE:
- * Implements the f/w related HIP core lib API.
- * It is part of the porting exercise in Linux.
- *
- * Also, it contains example code for reading the loader and f/w files
- * from the userspace and starting the SME in Linux.
- *
- * Copyright (C) 2005-2009 by Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- *
- * ---------------------------------------------------------------------------
- */
-#include <linux/kmod.h>
-#include <linux/vmalloc.h>
-#include <linux/firmware.h>
-#include <asm/uaccess.h>
-#include "csr_wifi_hip_unifi.h"
-#include "csr_wifi_hip_unifi_udi.h"
-#include "unifiio.h"
-#include "unifi_priv.h"
-
-/*
- * ---------------------------------------------------------------------------
- *
- * F/W download. Part of the HIP core API
- *
- * ---------------------------------------------------------------------------
- */
-
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_fw_read_start
- *
- * Returns a structure to be passed in unifi_fw_read().
- * This structure is an OS specific description of the f/w file.
- * In the linux implementation it is a buffer with the f/w and its' length.
- * The HIP driver calls this functions to request for the loader or
- * the firmware file.
- * The structure pointer can be freed when unifi_fw_read_stop() is called.
- *
- * Arguments:
- * ospriv Pointer to driver context.
- * is_fw Type of firmware to retrieve
- * info Versions information. Can be used to determine
- * the appropriate f/w file to load.
- *
- * Returns:
- * O on success, non-zero otherwise.
- *
- * ---------------------------------------------------------------------------
- */
-void*
-unifi_fw_read_start(void *ospriv, s8 is_fw, const card_info_t *info)
-{
- unifi_priv_t *priv = (unifi_priv_t*)ospriv;
- CSR_UNUSED(info);
-
- if (is_fw == UNIFI_FW_STA) {
- /* F/w may have been released after a previous successful download. */
- if (priv->fw_sta.dl_data == NULL) {
- unifi_trace(priv, UDBG2, "Attempt reload of sta f/w\n");
- uf_request_firmware_files(priv, UNIFI_FW_STA);
- }
- /* Set up callback struct for readfunc() */
- if (priv->fw_sta.dl_data != NULL) {
- return &priv->fw_sta;
- }
-
- } else {
- unifi_error(priv, "downloading firmware... unknown request: %d\n", is_fw);
- }
-
- return NULL;
-} /* unifi_fw_read_start() */
-
-
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_fw_read_stop
- *
- * Called when the HIP driver has finished using the loader or
- * the firmware file.
- * The firmware buffer may be released now.
- *
- * Arguments:
- * ospriv Pointer to driver context.
- * dlpriv The pointer returned by unifi_fw_read_start()
- *
- * ---------------------------------------------------------------------------
- */
-void
-unifi_fw_read_stop(void *ospriv, void *dlpriv)
-{
- unifi_priv_t *priv = (unifi_priv_t*)ospriv;
- struct dlpriv *dl_struct = (struct dlpriv *)dlpriv;
-
- if (dl_struct != NULL) {
- if (dl_struct->dl_data != NULL) {
- unifi_trace(priv, UDBG2, "Release f/w buffer %p, %d bytes\n",
- dl_struct->dl_data, dl_struct->dl_len);
- }
- uf_release_firmware(priv, dl_struct);
- }
-
-} /* unifi_fw_read_stop() */
-
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_fw_open_buffer
- *
- * Returns a handle for a buffer dynamically allocated by the driver,
- * e.g. into which a firmware file may have been converted from another format
- * which is the case with some production test images.
- *
- * The handle may then be used by unifi_fw_read() to access the contents of
- * the buffer.
- *
- * Arguments:
- * ospriv Pointer to driver context.
- * fwbuf Buffer containing firmware image
- * len Length of buffer in bytes
- *
- * Returns
- * Handle for buffer, or NULL on error
- * ---------------------------------------------------------------------------
- */
-void *
-unifi_fw_open_buffer(void *ospriv, void *fwbuf, u32 len)
-{
- unifi_priv_t *priv = (unifi_priv_t*)ospriv;
-
- if (fwbuf == NULL) {
- return NULL;
- }
- priv->fw_conv.dl_data = fwbuf;
- priv->fw_conv.dl_len = len;
- priv->fw_conv.fw_desc = NULL; /* No OS f/w resource is associated */
-
- return &priv->fw_conv;
-}
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_fw_close_buffer
- *
- * Releases any handle for a buffer dynamically allocated by the driver,
- * e.g. into which a firmware file may have been converted from another format
- * which is the case with some production test images.
- *
- *
- * Arguments:
- * ospriv Pointer to driver context.
- * fwbuf Buffer containing firmware image
- *
- * Returns
- * Handle for buffer, or NULL on error
- * ---------------------------------------------------------------------------
- */
-void unifi_fw_close_buffer(void *ospriv, void *fwbuf)
-{
-}
-
-/*
- * ---------------------------------------------------------------------------
- * unifi_fw_read
- *
- * The HIP driver calls this function to ask for a part of the loader or
- * the firmware file.
- *
- * Arguments:
- * ospriv Pointer to driver context.
- * arg The pointer returned by unifi_fw_read_start().
- * offset The offset in the file to return from.
- * buf A buffer to store the requested data.
- * len The size of the buf and the size of the requested data.
- *
- * Returns
- * The number of bytes read from the firmware image, or -ve on error
- * ---------------------------------------------------------------------------
- */
-s32
-unifi_fw_read(void *ospriv, void *arg, u32 offset, void *buf, u32 len)
-{
- const struct dlpriv *dlpriv = arg;
-
- if (offset >= dlpriv->dl_len) {
- /* at end of file */
- return 0;
- }
-
- if ((offset + len) > dlpriv->dl_len) {
- /* attempt to read past end of file */
- return -1;
- }
-
- memcpy(buf, dlpriv->dl_data+offset, len);
-
- return len;
-
-} /* unifi_fw_read() */
-
-
-
-
-#define UNIFIHELPER_INIT_MODE_SMEUSER 2
-#define UNIFIHELPER_INIT_MODE_NATIVE 1
-
-/*
- * ---------------------------------------------------------------------------
- * uf_run_unifihelper
- *
- * Ask userspace to send us firmware for download by running
- * '/usr/sbin/unififw'.
- * The same script starts the SME userspace application.
- * Derived from net_run_sbin_hotplug().
- *
- * Arguments:
- * priv Pointer to OS private struct.
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-int
-uf_run_unifihelper(unifi_priv_t *priv)
-{
-#ifdef ANDROID_BUILD
- char *prog = "/system/bin/unififw";
-#else
- char *prog = "/usr/sbin/unififw";
-#endif /* ANDROID_BUILD */
-
- char *argv[6], *envp[4];
- char inst_str[8];
- char init_mode[8];
- int i, r;
-
-#if (defined CSR_SME_USERSPACE) && (!defined CSR_SUPPORT_WEXT)
- unifi_trace(priv, UDBG1, "SME userspace build: run unifi_helper manually\n");
- return 0;
-#endif
-
- unifi_trace(priv, UDBG1, "starting %s\n", prog);
-
- snprintf(inst_str, 8, "%d", priv->instance);
-#if (defined CSR_SME_USERSPACE)
- snprintf(init_mode, 8, "%d", UNIFIHELPER_INIT_MODE_SMEUSER);
-#else
- snprintf(init_mode, 8, "%d", UNIFIHELPER_INIT_MODE_NATIVE);
-#endif /* CSR_SME_USERSPACE */
-
- i = 0;
- argv[i++] = prog;
- argv[i++] = inst_str;
- argv[i++] = init_mode;
- argv[i++] = 0;
- argv[i] = 0;
- /* Don't add more args without making argv bigger */
-
- /* minimal command environment */
- i = 0;
- envp[i++] = "HOME=/";
- envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
- envp[i] = 0;
- /* Don't add more without making envp bigger */
-
- unifi_trace(priv, UDBG2, "running %s %s %s\n", argv[0], argv[1], argv[2]);
-
- r = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_EXEC);
-
- return r;
-} /* uf_run_unifihelper() */
-
-#ifdef CSR_WIFI_SPLIT_PATCH
-static u8 is_ap_mode(unifi_priv_t *priv)
-{
- if (priv == NULL || priv->interfacePriv[0] == NULL)
- {
- return FALSE;
- }
-
- /* Test for mode requiring AP patch */
- return(CSR_WIFI_HIP_IS_AP_FW(priv->interfacePriv[0]->interfaceMode));
-}
-#endif
-
-/*
- * ---------------------------------------------------------------------------
- * uf_request_firmware_files
- *
- * Get the firmware files from userspace.
- *
- * Arguments:
- * priv Pointer to OS private struct.
- * is_fw type of firmware to load (UNIFI_FW_STA/LOADER)
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-int uf_request_firmware_files(unifi_priv_t *priv, int is_fw)
-{
- /* uses the default method to get the firmware */
- const struct firmware *fw_entry;
- int postfix;
-#define UNIFI_MAX_FW_PATH_LEN 32
- char fw_name[UNIFI_MAX_FW_PATH_LEN];
- int r;
-
-#if (defined CSR_SUPPORT_SME) && (defined CSR_SUPPORT_WEXT)
- if (priv->mib_data.length) {
- vfree(priv->mib_data.data);
- priv->mib_data.data = NULL;
- priv->mib_data.length = 0;
- }
-#endif /* CSR_SUPPORT_SME && CSR_SUPPORT_WEXT*/
-
- postfix = priv->instance;
-
- if (is_fw == UNIFI_FW_STA) {
- /* Free kernel buffer and reload */
- uf_release_firmware(priv, &priv->fw_sta);
-#ifdef CSR_WIFI_SPLIT_PATCH
- scnprintf(fw_name, UNIFI_MAX_FW_PATH_LEN, "unifi-sdio-%d/%s",
- postfix, (is_ap_mode(priv) ? "ap.xbv" : "staonly.xbv") );
-#else
- scnprintf(fw_name, UNIFI_MAX_FW_PATH_LEN, "unifi-sdio-%d/%s",
- postfix, "sta.xbv" );
-#endif
- r = request_firmware(&fw_entry, fw_name, priv->unifi_device);
- if (r == 0) {
- priv->fw_sta.dl_data = fw_entry->data;
- priv->fw_sta.dl_len = fw_entry->size;
- priv->fw_sta.fw_desc = (void *)fw_entry;
- } else {
- unifi_trace(priv, UDBG2, "Firmware file not available\n");
- }
- }
-
- return 0;
-
-} /* uf_request_firmware_files() */
-
-/*
- * ---------------------------------------------------------------------------
- * uf_release_firmware_files
- *
- * Release all buffers used to store firmware files
- *
- * Arguments:
- * priv Pointer to OS private struct.
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-int uf_release_firmware_files(unifi_priv_t *priv)
-{
- uf_release_firmware(priv, &priv->fw_sta);
-
- return 0;
-}
-
-/*
- * ---------------------------------------------------------------------------
- * uf_release_firmware
- *
- * Release specific buffer used to store firmware
- *
- * Arguments:
- * priv Pointer to OS private struct.
- * to_free Pointer to specific buffer to release
- *
- * Returns:
- * None.
- * ---------------------------------------------------------------------------
- */
-int uf_release_firmware(unifi_priv_t *priv, struct dlpriv *to_free)
-{
- if (to_free != NULL) {
- release_firmware((const struct firmware *)to_free->fw_desc);
- to_free->fw_desc = NULL;
- to_free->dl_data = NULL;
- to_free->dl_len = 0;
- }
- return 0;
-}
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