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staging: rtl8192e: Add _rtl92e_fw_prepare 

Add function to request and prepare firmware image.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mateusz Kulikowski 2015-10-19 22:00:26 +02:00 committed by Greg Kroah-Hartman
parent 51dac5f095
commit 09b1893831
1 changed files with 38 additions and 31 deletions
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69
drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
View File

@ -167,6 +167,36 @@ static bool _rtl92e_fw_check_ready(struct net_device *dev,
return rt_status;
}
static bool _rtl92e_fw_prepare(struct net_device *dev, struct rt_fw_blob *blob,
const char *name, u8 padding)
{
const struct firmware *fw;
int rc, i;
bool ret = true;
rc = request_firmware(&fw, name, &dev->dev);
if (rc < 0)
return false;
if (round_up(fw->size, 4) > MAX_FW_SIZE - padding) {
netdev_err(dev, "Firmware image %s too big for the device.\n",
name);
ret = false;
goto out;
}
if (padding)
memset(blob->data, 0, padding);
if (fw->size % 4)
memset(blob->data + padding + fw->size, 0, 4);
memcpy(blob->data + padding, fw->data, fw->size);
blob->size = round_up(fw->size, 4) + padding;
out:
release_firmware(fw);
return ret;
}
bool rtl92e_init_fw(struct net_device *dev)
{
struct r8192_priv *priv = rtllib_priv(dev);
@ -202,39 +232,16 @@ bool rtl92e_init_fw(struct net_device *dev)
RTL8192E_MAIN_IMG_FW,
RTL8192E_DATA_IMG_FW
};
const struct firmware *fw_entry;
int rc;
int pad = 0;
rc = request_firmware(&fw_entry,
fw_name[i],
&priv->pdev->dev);
if (rc < 0) {
RT_TRACE(COMP_FIRMWARE,
"request firmware fail!\n");
if (i == FW_INIT_STEP1_MAIN)
pad = 128;
if (!_rtl92e_fw_prepare(dev,
&pfirmware->blobs[i],
fw_name[i],
pad))
goto download_firmware_fail;
}
if (fw_entry->size > MAX_FW_SIZE) {
RT_TRACE(COMP_FIRMWARE,
"img file size exceed the container struct buffer fail!\n");
release_firmware(fw_entry);
goto download_firmware_fail;
}
if (i != FW_INIT_STEP1_MAIN) {
memcpy(pfirmware->blobs[i].data,
fw_entry->data, fw_entry->size);
pfirmware->blobs[i].size =
fw_entry->size;
} else {
memset(pfirmware->blobs[i].data,
0, 128);
memcpy(&pfirmware->blobs[i].data[128],
fw_entry->data, fw_entry->size);
pfirmware->blobs[i].size =
fw_entry->size + 128;
}
release_firmware(fw_entry);
}
}