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authorHans Verkuil <hverkuil@xs4all.nl>2009-08-31 17:57:52 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-09-12 12:19:52 -0300
commit8d81ae243158b0ac8b2c1646d5adcbdf26a260bc (patch)
tree9205ec200ec17a4a32c2a6f5dc043dd43446afb5
parenta65f3159244f27ce6ff84dd1bb641079acdbd396 (diff)
V4L/DVB (12613): cx25840: fix determining the firmware name
Depending on the model there are three different firmwares to choose from. Unfortunately if a cx23885 is loaded first, then the global firmware name is overwritten with that firmware and if ivtv is loaded next, then it tries to load the wrong firmware. In addition, the original approach would also overwrite any firmware that the user specified explicitly. Cc: Jarod Wilson <jarod@wilsonet.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/video/cx25840/cx25840-firmware.c35
1 files changed, 22 insertions, 13 deletions
diff --git a/drivers/media/video/cx25840/cx25840-firmware.c b/drivers/media/video/cx25840/cx25840-firmware.c
index 2a535d0403e..1f483c1d0db 100644
--- a/drivers/media/video/cx25840/cx25840-firmware.c
+++ b/drivers/media/video/cx25840/cx25840-firmware.c
@@ -23,10 +23,6 @@
#include "cx25840-core.h"
-#define FWFILE "v4l-cx25840.fw"
-#define FWFILE_CX23885 "v4l-cx23885-avcore-01.fw"
-#define FWFILE_CX231XX "v4l-cx231xx-avcore-01.fw"
-
/*
* Mike Isely <isely@pobox.com> - The FWSEND parameter controls the
* size of the firmware chunks sent down the I2C bus to the chip.
@@ -40,11 +36,11 @@
#define FWDEV(x) &((x)->dev)
-static char *firmware = FWFILE;
+static char *firmware = "";
module_param(firmware, charp, 0444);
-MODULE_PARM_DESC(firmware, "Firmware image [default: " FWFILE "]");
+MODULE_PARM_DESC(firmware, "Firmware image to load");
static void start_fw_load(struct i2c_client *client)
{
@@ -65,6 +61,19 @@ static void end_fw_load(struct i2c_client *client)
cx25840_write(client, 0x803, 0x03);
}
+static const char *get_fw_name(struct i2c_client *client)
+{
+ struct cx25840_state *state = to_state(i2c_get_clientdata(client));
+
+ if (firmware[0])
+ return firmware;
+ if (state->is_cx23885)
+ return "v4l-cx23885-avcore-01.fw";
+ if (state->is_cx231xx)
+ return "v4l-cx231xx-avcore-01.fw";
+ return "v4l-cx25840.fw";
+}
+
static int check_fw_load(struct i2c_client *client, int size)
{
/* DL_ADDR_HB DL_ADDR_LB */
@@ -72,11 +81,13 @@ static int check_fw_load(struct i2c_client *client, int size)
s |= cx25840_read(client, 0x800);
if (size != s) {
- v4l_err(client, "firmware %s load failed\n", firmware);
+ v4l_err(client, "firmware %s load failed\n",
+ get_fw_name(client));
return -EINVAL;
}
- v4l_info(client, "loaded %s firmware (%d bytes)\n", firmware, size);
+ v4l_info(client, "loaded %s firmware (%d bytes)\n",
+ get_fw_name(client), size);
return 0;
}
@@ -96,26 +107,24 @@ int cx25840_loadfw(struct i2c_client *client)
const struct firmware *fw = NULL;
u8 buffer[FWSEND];
const u8 *ptr;
+ const char *fwname = get_fw_name(client);
int size, retval;
int MAX_BUF_SIZE = FWSEND;
u32 gpio_oe = 0, gpio_da = 0;
if (state->is_cx23885) {
- firmware = FWFILE_CX23885;
/* Preserve the GPIO OE and output bits */
gpio_oe = cx25840_read(client, 0x160);
gpio_da = cx25840_read(client, 0x164);
}
- else if (state->is_cx231xx)
- firmware = FWFILE_CX231XX;
if ((state->is_cx231xx) && MAX_BUF_SIZE > 16) {
v4l_err(client, " Firmware download size changed to 16 bytes max length\n");
MAX_BUF_SIZE = 16; /* cx231xx cannot accept more than 16 bytes at a time */
}
- if (request_firmware(&fw, firmware, FWDEV(client)) != 0) {
- v4l_err(client, "unable to open firmware %s\n", firmware);
+ if (request_firmware(&fw, fwname, FWDEV(client)) != 0) {
+ v4l_err(client, "unable to open firmware %s\n", fwname);
return -EINVAL;
}