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author | Macpaul Lin <macpaul.from.taiwan@gmail.com> | 2012-09-28 08:40:57 +0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-22 08:26:14 -0700 |
commit | 9e412a0a581e07cf1551bbd9b4ae69654e474a3c (patch) | |
tree | 190d2c079a4018c7ed43bc1625f2ed2e6c3fb31c /drivers/staging/gdm72xx | |
parent | 2874762b31d8d0eebcfdf189ec9906be9c1460f6 (diff) | |
download | linux-9e412a0a581e07cf1551bbd9b4ae69654e474a3c.tar.gz linux-9e412a0a581e07cf1551bbd9b4ae69654e474a3c.tar.bz2 linux-9e412a0a581e07cf1551bbd9b4ae69654e474a3c.zip |
staging/gdm72xx: sdio_boot: replace firmware upgrade API
Replace firmware upgrade API in download_image().
Signed-off-by: Macpaul Lin <macpaul.from.taiwan@gmail.com>
Cc: 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/sdio_boot.c | 81 |
1 files changed, 42 insertions, 39 deletions
diff --git a/drivers/staging/gdm72xx/sdio_boot.c b/drivers/staging/gdm72xx/sdio_boot.c index 65624bca8b3a..38feb1acd8e0 100644 --- a/drivers/staging/gdm72xx/sdio_boot.c +++ b/drivers/staging/gdm72xx/sdio_boot.c @@ -24,15 +24,18 @@ #include <linux/mmc/card.h> #include <linux/mmc/sdio_func.h> +#include <linux/firmware.h> + #include "gdm_sdio.h" #define TYPE_A_HEADER_SIZE 4 #define TYPE_A_LOOKAHEAD_SIZE 16 -#define YMEM0_SIZE 0x8000 /* 32kbytes */ +#define YMEM0_SIZE 0x8000 /* 32kbytes */ #define DOWNLOAD_SIZE (YMEM0_SIZE - TYPE_A_HEADER_SIZE) -#define KRN_PATH "/lib/firmware/gdm72xx/gdmskrn.bin" -#define RFS_PATH "/lib/firmware/gdm72xx/gdmsrfs.bin" +#define FW_DIR "gdm72xx/" +#define FW_KRN "gdmskrn.bin" +#define FW_RFS "gdmsrfs.bin" static u8 *tx_buf; @@ -52,57 +55,57 @@ static int ack_ready(struct sdio_func *func) return 0; } -static int download_image(struct sdio_func *func, char *img_name) +static int download_image(struct sdio_func *func, const char *img_name) { - int ret = 0, len, size, pno; - struct file *filp = NULL; - struct inode *inode = NULL; + int ret = 0, len, pno; u8 *buf = tx_buf; loff_t pos = 0; - - filp = filp_open(img_name, O_RDONLY | O_LARGEFILE, 0); - if (IS_ERR(filp)) { - printk(KERN_ERR "Can't find %s.\n", img_name); - return -ENOENT; + int img_len; + const struct firmware *firm; + + ret = request_firmware(&firm, img_name, &func->dev); + if (ret < 0) { + printk(KERN_ERR + "requesting firmware %s failed with error %d\n", + img_name, ret); + return ret; } - inode = filp->f_dentry->d_inode; - if (!S_ISREG(inode->i_mode)) { - printk(KERN_ERR "Invalid file type: %s\n", img_name); - ret = -EINVAL; - goto out; + buf = kmalloc(DOWNLOAD_SIZE + TYPE_A_HEADER_SIZE, GFP_KERNEL); + if (buf == NULL) { + printk(KERN_ERR "Error: kmalloc\n"); + return -ENOMEM; } - size = i_size_read(inode->i_mapping->host); - if (size <= 0) { - printk(KERN_ERR "Unable to find file size: %s\n", img_name); - ret = size; + img_len = firm->size; + + if (img_len <= 0) { + ret = -1; goto out; } pno = 0; - while ((len = filp->f_op->read(filp, buf + TYPE_A_HEADER_SIZE, - DOWNLOAD_SIZE, &pos))) { - if (len < 0) { - ret = -1; - goto out; + while (img_len > 0) { + if (img_len > DOWNLOAD_SIZE) { + len = DOWNLOAD_SIZE; + buf[3] = 0; + } else { + len = img_len; /* the last packet */ + buf[3] = 2; } buf[0] = len & 0xff; buf[1] = (len >> 8) & 0xff; buf[2] = (len >> 16) & 0xff; - if (pos >= size) /* The last packet */ - buf[3] = 2; - else - buf[3] = 0; - + memcpy(buf+TYPE_A_HEADER_SIZE, firm->data + pos, len); ret = sdio_memcpy_toio(func, 0, buf, len + TYPE_A_HEADER_SIZE); if (ret < 0) { printk(KERN_ERR "gdmwm: send image error: " "packet number = %d ret = %d\n", pno, ret); goto out; } + if (buf[3] == 2) /* The last packet */ break; if (!ack_ready(func)) { @@ -119,17 +122,21 @@ static int download_image(struct sdio_func *func, char *img_name) sdio_writeb(func, 0x01, 0x13, &ret); sdio_writeb(func, 0x00, 0x10, &ret); /* PCRRT */ + img_len -= DOWNLOAD_SIZE; + pos += DOWNLOAD_SIZE; pno++; } + out: - filp_close(filp, NULL); + kfree(buf); return ret; } int sdio_boot(struct sdio_func *func) { - static mm_segment_t fs; int ret; + const char *krn_name = FW_DIR FW_KRN; + const char *rfs_name = FW_DIR FW_RFS; tx_buf = kmalloc(YMEM0_SIZE, GFP_KERNEL); if (tx_buf == NULL) { @@ -137,21 +144,17 @@ int sdio_boot(struct sdio_func *func) return -ENOMEM; } - fs = get_fs(); - set_fs(get_ds()); - - ret = download_image(func, KRN_PATH); + ret = download_image(func, krn_name); if (ret) goto restore_fs; printk(KERN_INFO "GCT: Kernel download success.\n"); - ret = download_image(func, RFS_PATH); + ret = download_image(func, rfs_name); if (ret) goto restore_fs; printk(KERN_INFO "GCT: Filesystem download success.\n"); restore_fs: - set_fs(fs); kfree(tx_buf); return ret; } |