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author | Macpaul Lin <macpaul@gmail.com> | 2012-09-14 14:02:04 +0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-17 05:56:17 -0700 |
commit | 3afcb91c418a9e50cfb79d7b6e28907d782e69d9 (patch) | |
tree | e307a5223d97e714e30c62f54b940fc1bf467c4f /drivers/staging/gdm72xx | |
parent | d084610bb1e825eb60a1ca81a801aedfd36ff332 (diff) | |
download | linux-3afcb91c418a9e50cfb79d7b6e28907d782e69d9.tar.gz linux-3afcb91c418a9e50cfb79d7b6e28907d782e69d9.tar.bz2 linux-3afcb91c418a9e50cfb79d7b6e28907d782e69d9.zip |
staging/gdm72xx: usb_boot: replace firmware upgrade API in em_download
Replace firmware upgrade API in em_download_image().
Signed-off-by: Macpaul Lin <macpaul@gmail.com>
Cc: Paul Stewart <pstew@chromium.org>
Cc: Ben Chan <benchan@chromium.org>
Cc: Sage Ahn <syahn@gctsemi.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/gdm72xx')
-rw-r--r-- | drivers/staging/gdm72xx/usb_boot.c | 77 |
1 files changed, 37 insertions, 40 deletions
diff --git a/drivers/staging/gdm72xx/usb_boot.c b/drivers/staging/gdm72xx/usb_boot.c index 80870a06d026..0787188728aa 100644 --- a/drivers/staging/gdm72xx/usb_boot.c +++ b/drivers/staging/gdm72xx/usb_boot.c @@ -32,8 +32,8 @@ #define MAX_IMG_CNT 16 #define FW_DIR "gdm72xx/" #define FW_UIMG "gdmuimg.bin" -#define KERN_PATH "/lib/firmware/gdm72xx/zImage" -#define FS_PATH "/lib/firmware/gdm72xx/ramdisk.jffs2" +#define FW_KERN "zImage" +#define FW_FS "ramdisk.jffs2" struct dn_header { u32 magic_num; @@ -276,38 +276,27 @@ out: return ret; } -static int em_download_image(struct usb_device *usbdev, char *path, +static int em_download_image(struct usb_device *usbdev, const char *img_name, char *type_string) { - struct file *filp; - struct inode *inode; - static mm_segment_t fs; char *buf = NULL; loff_t pos = 0; int ret = 0; - int len, readn = 0; + int len; + int img_len; + const struct firmware *firm; #if defined(GDM7205_PADDING) const int pad_size = GDM7205_PADDING; #else const int pad_size = 0; #endif - fs = get_fs(); - set_fs(get_ds()); - - filp = filp_open(path, O_RDONLY | O_LARGEFILE, 0); - if (IS_ERR(filp)) { - printk(KERN_ERR "Can't find %s.\n", path); - set_fs(fs); - ret = -ENOENT; - goto restore_fs; - } - - inode = filp->f_dentry->d_inode; - if (!S_ISREG(inode->i_mode)) { - printk(KERN_ERR "Invalid file type: %s\n", path); - ret = -EINVAL; - goto out; + ret = request_firmware(&firm, img_name, &usbdev->dev); + if (ret < 0) { + printk(KERN_ERR + "requesting firmware %s failed with error %d\n", + img_name, ret); + return ret; } buf = kmalloc(DOWNLOAD_CHUCK + pad_size, GFP_KERNEL); @@ -321,18 +310,28 @@ static int em_download_image(struct usb_device *usbdev, char *path, if (ret < 0) goto out; - while ((len = filp->f_op->read(filp, buf+pad_size, DOWNLOAD_CHUCK, - &pos))) { - if (len < 0) { - ret = -1; - goto out; - } - readn += len; + img_len = firm->size; + if (img_len <= 0) { + ret = -1; + goto out; + } + + while (img_len > 0) { + if (img_len > DOWNLOAD_CHUCK) + len = DOWNLOAD_CHUCK; + else + len = img_len; /* the last chunk of data */ + + memcpy(buf+pad_size, firm->data + pos, len); ret = gdm_wibro_send(usbdev, buf, len+pad_size); + if (ret < 0) goto out; + img_len -= DOWNLOAD_CHUCK; + pos += DOWNLOAD_CHUCK; + ret = em_wait_ack(usbdev, ((len+pad_size) % 512 == 0)); if (ret < 0) goto out; @@ -343,11 +342,7 @@ static int em_download_image(struct usb_device *usbdev, char *path, goto out; out: - filp_close(filp, NULL); - -restore_fs: - set_fs(fs); - + release_firmware(firm); kfree(buf); return ret; @@ -365,18 +360,20 @@ static int em_fw_reset(struct usb_device *usbdev) int usb_emergency(struct usb_device *usbdev) { int ret; + const char *kern_name = FW_DIR FW_KERN; + const char *fs_name = FW_DIR FW_FS; - ret = em_download_image(usbdev, KERN_PATH, KERNEL_TYPE_STRING); + ret = em_download_image(usbdev, kern_name, KERNEL_TYPE_STRING); if (ret < 0) - goto out; + return ret; printk(KERN_INFO "GCT Emergency: Kernel download success.\n"); - ret = em_download_image(usbdev, FS_PATH, FS_TYPE_STRING); + ret = em_download_image(usbdev, fs_name, FS_TYPE_STRING); if (ret < 0) - goto out; + return ret; printk(KERN_INFO "GCT Emergency: Filesystem download success.\n"); ret = em_fw_reset(usbdev); -out: + return ret; } |