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path: root/drivers/media/dvb/firewire/firedtv-fw.c
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Diffstat (limited to 'drivers/media/dvb/firewire/firedtv-fw.c')
-rw-r--r--drivers/media/dvb/firewire/firedtv-fw.c41
1 files changed, 6 insertions, 35 deletions
diff --git a/drivers/media/dvb/firewire/firedtv-fw.c b/drivers/media/dvb/firewire/firedtv-fw.c
index 6223bf01efe9..75afe4f81e33 100644
--- a/drivers/media/dvb/firewire/firedtv-fw.c
+++ b/drivers/media/dvb/firewire/firedtv-fw.c
@@ -41,7 +41,7 @@ static int node_req(struct firedtv *fdtv, u64 addr, void *data, size_t len,
return rcode != RCODE_COMPLETE ? -EIO : 0;
}
-static int node_lock(struct firedtv *fdtv, u64 addr, __be32 data[])
+static int node_lock(struct firedtv *fdtv, u64 addr, void *data)
{
return node_req(fdtv, addr, data, 8, TCODE_LOCK_COMPARE_SWAP);
}
@@ -239,47 +239,18 @@ static const struct fw_address_region fcp_region = {
};
/* Adjust the template string if models with longer names appear. */
-#define MAX_MODEL_NAME_LEN ((int)DIV_ROUND_UP(sizeof("FireDTV ????"), 4))
-
-static size_t model_name(u32 *directory, __be32 *buffer)
-{
- struct fw_csr_iterator ci;
- int i, length, key, value, last_key = 0;
- u32 *block = NULL;
-
- fw_csr_iterator_init(&ci, directory);
- while (fw_csr_iterator_next(&ci, &key, &value)) {
- if (last_key == CSR_MODEL &&
- key == (CSR_DESCRIPTOR | CSR_LEAF))
- block = ci.p - 1 + value;
- last_key = key;
- }
-
- if (block == NULL)
- return 0;
-
- length = min((int)(block[0] >> 16) - 2, MAX_MODEL_NAME_LEN);
- if (length <= 0)
- return 0;
-
- /* fast-forward to text string */
- block += 3;
-
- for (i = 0; i < length; i++)
- buffer[i] = cpu_to_be32(block[i]);
-
- return length * 4;
-}
+#define MAX_MODEL_NAME_LEN sizeof("FireDTV ????")
static int node_probe(struct device *dev)
{
struct firedtv *fdtv;
- __be32 name[MAX_MODEL_NAME_LEN];
+ char name[MAX_MODEL_NAME_LEN];
int name_len, err;
- name_len = model_name(fw_unit(dev)->directory, name);
+ name_len = fw_csr_string(fw_unit(dev)->directory, CSR_MODEL,
+ name, sizeof(name));
- fdtv = fdtv_alloc(dev, &backend, (char *)name, name_len);
+ fdtv = fdtv_alloc(dev, &backend, name, name_len >= 0 ? name_len : 0);
if (!fdtv)
return -ENOMEM;