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authorDavid Woodhouse <David.Woodhouse@intel.com>2008-07-14 15:49:04 -0700
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-07-14 15:51:11 -0700
commit751851af7aae9b8bd5a60b3897209081fbc18b2b (patch)
tree5cb8dbb71d691a760da61e319796800ee42cc1c5 /drivers/media/video/cx25840/cx25840-firmware.c
parenta41eebab7537890409ea9dfe0fcda9b5fbdb090d (diff)
parentd71792ac3d48df6693f7b339e02494efc27036c3 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Conflicts: sound/pci/Kconfig
Diffstat (limited to 'drivers/media/video/cx25840/cx25840-firmware.c')
-rw-r--r--drivers/media/video/cx25840/cx25840-firmware.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/media/video/cx25840/cx25840-firmware.c b/drivers/media/video/cx25840/cx25840-firmware.c
index 620d295947a..8d489a4b957 100644
--- a/drivers/media/video/cx25840/cx25840-firmware.c
+++ b/drivers/media/video/cx25840/cx25840-firmware.c
@@ -79,7 +79,7 @@ static int check_fw_load(struct i2c_client *client, int size)
return 0;
}
-static int fw_write(struct i2c_client *client, u8 *data, int size)
+static int fw_write(struct i2c_client *client, const u8 *data, int size)
{
if (i2c_master_send(client, data, size) < size) {
v4l_err(client, "firmware load i2c failure\n");
@@ -93,7 +93,8 @@ int cx25840_loadfw(struct i2c_client *client)
{
struct cx25840_state *state = i2c_get_clientdata(client);
const struct firmware *fw = NULL;
- u8 buffer[4], *ptr;
+ u8 buffer[FWSEND];
+ const u8 *ptr;
int size, retval;
if (state->is_cx23885)
@@ -108,29 +109,23 @@ int cx25840_loadfw(struct i2c_client *client)
buffer[0] = 0x08;
buffer[1] = 0x02;
- buffer[2] = fw->data[0];
- buffer[3] = fw->data[1];
- retval = fw_write(client, buffer, 4);
- if (retval < 0) {
- release_firmware(fw);
- return retval;
- }
-
- size = fw->size - 2;
+ size = fw->size;
ptr = fw->data;
while (size > 0) {
- ptr[0] = 0x08;
- ptr[1] = 0x02;
- retval = fw_write(client, ptr, min(FWSEND, size + 2));
+ int len = min(FWSEND - 2, size);
+
+ memcpy(buffer + 2, ptr, len);
+
+ retval = fw_write(client, buffer, len + 2);
if (retval < 0) {
release_firmware(fw);
return retval;
}
- size -= FWSEND - 2;
- ptr += FWSEND - 2;
+ size -= len;
+ ptr += len;
}
end_fw_load(client);