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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/net/wireless/libertas/firmware.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/net/wireless/libertas/firmware.c')
-rw-r--r--drivers/net/wireless/libertas/firmware.c227
1 files changed, 0 insertions, 227 deletions
diff --git a/drivers/net/wireless/libertas/firmware.c b/drivers/net/wireless/libertas/firmware.c
deleted file mode 100644
index d1aa2f299..000000000
--- a/drivers/net/wireless/libertas/firmware.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * Firmware loading and handling functions.
- */
-
-#include <linux/sched.h>
-#include <linux/firmware.h>
-#include <linux/module.h>
-
-#include "dev.h"
-#include "decl.h"
-
-static void load_next_firmware_from_table(struct lbs_private *private);
-
-static void lbs_fw_loaded(struct lbs_private *priv, int ret,
- const struct firmware *helper, const struct firmware *mainfw)
-{
- unsigned long flags;
-
- lbs_deb_fw("firmware load complete, code %d\n", ret);
-
- /* User must free helper/mainfw */
- priv->fw_callback(priv, ret, helper, mainfw);
-
- spin_lock_irqsave(&priv->driver_lock, flags);
- priv->fw_callback = NULL;
- wake_up(&priv->fw_waitq);
- spin_unlock_irqrestore(&priv->driver_lock, flags);
-}
-
-static void do_load_firmware(struct lbs_private *priv, const char *name,
- void (*cb)(const struct firmware *fw, void *context))
-{
- int ret;
-
- lbs_deb_fw("Requesting %s\n", name);
- ret = reject_firmware_nowait(THIS_MODULE, true, name,
- priv->fw_device, GFP_KERNEL, priv, cb);
- if (ret) {
- lbs_deb_fw("request_firmware_nowait error %d\n", ret);
- lbs_fw_loaded(priv, ret, NULL, NULL);
- }
-}
-
-static void main_firmware_cb(const struct firmware *firmware, void *context)
-{
- struct lbs_private *priv = context;
-
- if (!firmware) {
- /* Failed to find firmware: try next table entry */
- load_next_firmware_from_table(priv);
- return;
- }
-
- /* Firmware found! */
- lbs_fw_loaded(priv, 0, priv->helper_fw, firmware);
- if (priv->helper_fw) {
- release_firmware (priv->helper_fw);
- priv->helper_fw = NULL;
- }
- release_firmware (firmware);
-}
-
-static void helper_firmware_cb(const struct firmware *firmware, void *context)
-{
- struct lbs_private *priv = context;
-
- if (!firmware) {
- /* Failed to find firmware: try next table entry */
- load_next_firmware_from_table(priv);
- return;
- }
-
- /* Firmware found! */
- if (priv->fw_iter->fwname) {
- priv->helper_fw = firmware;
- do_load_firmware(priv, priv->fw_iter->fwname, main_firmware_cb);
- } else {
- /* No main firmware needed for this helper --> success! */
- lbs_fw_loaded(priv, 0, firmware, NULL);
- }
-}
-
-static void load_next_firmware_from_table(struct lbs_private *priv)
-{
- const struct lbs_fw_table *iter;
-
- if (!priv->fw_iter)
- iter = priv->fw_table;
- else
- iter = ++priv->fw_iter;
-
- if (priv->helper_fw) {
- release_firmware(priv->helper_fw);
- priv->helper_fw = NULL;
- }
-
-next:
- if (!iter->helper) {
- /* End of table hit. */
- lbs_fw_loaded(priv, -ENOENT, NULL, NULL);
- return;
- }
-
- if (iter->model != priv->fw_model) {
- iter++;
- goto next;
- }
-
- priv->fw_iter = iter;
- do_load_firmware(priv, iter->helper, helper_firmware_cb);
-}
-
-void lbs_wait_for_firmware_load(struct lbs_private *priv)
-{
- wait_event(priv->fw_waitq, priv->fw_callback == NULL);
-}
-
-/**
- * lbs_get_firmware_async - Retrieves firmware asynchronously. Can load
- * either a helper firmware and a main firmware (2-stage), or just the helper.
- *
- * @priv: Pointer to lbs_private instance
- * @dev: A pointer to &device structure
- * @card_model: Bus-specific card model ID used to filter firmware table
- * elements
- * @fw_table: Table of firmware file names and device model numbers
- * terminated by an entry with a NULL helper name
- * @callback: User callback to invoke when firmware load succeeds or fails.
- */
-int lbs_get_firmware_async(struct lbs_private *priv, struct device *device,
- u32 card_model, const struct lbs_fw_table *fw_table,
- lbs_fw_cb callback)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->driver_lock, flags);
- if (priv->fw_callback) {
- lbs_deb_fw("firmware load already in progress\n");
- spin_unlock_irqrestore(&priv->driver_lock, flags);
- return -EBUSY;
- }
-
- priv->fw_device = device;
- priv->fw_callback = callback;
- priv->fw_table = fw_table;
- priv->fw_iter = NULL;
- priv->fw_model = card_model;
- spin_unlock_irqrestore(&priv->driver_lock, flags);
-
- lbs_deb_fw("Starting async firmware load\n");
- load_next_firmware_from_table(priv);
- return 0;
-}
-EXPORT_SYMBOL_GPL(lbs_get_firmware_async);
-
-/**
- * lbs_get_firmware - Retrieves two-stage firmware
- *
- * @dev: A pointer to &device structure
- * @card_model: Bus-specific card model ID used to filter firmware table
- * elements
- * @fw_table: Table of firmware file names and device model numbers
- * terminated by an entry with a NULL helper name
- * @helper: On success, the helper firmware; caller must free
- * @mainfw: On success, the main firmware; caller must free
- *
- * Deprecated: use lbs_get_firmware_async() instead.
- *
- * returns: 0 on success, non-zero on failure
- */
-int lbs_get_firmware(struct device *dev, u32 card_model,
- const struct lbs_fw_table *fw_table,
- const struct firmware **helper,
- const struct firmware **mainfw)
-{
- const struct lbs_fw_table *iter;
- int ret;
-
- BUG_ON(helper == NULL);
- BUG_ON(mainfw == NULL);
-
- /* Search for firmware to use from the table. */
- iter = fw_table;
- while (iter && iter->helper) {
- if (iter->model != card_model)
- goto next;
-
- if (*helper == NULL) {
- ret = reject_firmware(helper, iter->helper, dev);
- if (ret)
- goto next;
-
- /* If the device has one-stage firmware (ie cf8305) and
- * we've got it then we don't need to bother with the
- * main firmware.
- */
- if (iter->fwname == NULL)
- return 0;
- }
-
- if (*mainfw == NULL) {
- ret = reject_firmware(mainfw, iter->fwname, dev);
- if (ret) {
- /* Clear the helper to ensure we don't have
- * mismatched firmware pairs.
- */
- release_firmware(*helper);
- *helper = NULL;
- }
- }
-
- if (*helper && *mainfw)
- return 0;
-
- next:
- iter++;
- }
-
- /* Failed */
- release_firmware(*helper);
- *helper = NULL;
- release_firmware(*mainfw);
- *mainfw = NULL;
-
- return -ENOENT;
-}
-EXPORT_SYMBOL_GPL(lbs_get_firmware);