diff options
author | Samuel Ortiz <sameo@linux.intel.com> | 2012-03-05 00:03:50 (GMT) |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2012-03-06 20:16:23 (GMT) |
commit | 47807d3dbb62e93850cbcb797db1a9ee1806f986 (patch) | |
tree | f8e1970083547290e35830e5bedb4a4ce7237f97 | |
parent | 9dda50f4c98f84e32a5f6dc4d9dd7af6085add43 (diff) | |
download | linux-fsl-qoriq-47807d3dbb62e93850cbcb797db1a9ee1806f986.tar.xz |
NFC: Remove the rf mode parameter from the DEP link up routine
When calling nfc_dep_link_up, we implicitely are in initiator mode.
Which means we also can provide the general bytes as a function argument,
as all drivers will eventually request them.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r-- | drivers/nfc/pn533.c | 20 | ||||
-rw-r--r-- | include/net/nfc/nfc.h | 6 | ||||
-rw-r--r-- | net/nfc/core.c | 22 | ||||
-rw-r--r-- | net/nfc/llcp/llcp.c | 2 | ||||
-rw-r--r-- | net/nfc/netlink.c | 11 | ||||
-rw-r--r-- | net/nfc/nfc.h | 5 |
6 files changed, 24 insertions, 42 deletions
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index ef33f64..cb6204f 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -1340,21 +1340,15 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, } static int pn533_dep_link_up(struct nfc_dev *nfc_dev, int target_idx, - u8 comm_mode, u8 rf_mode) + u8 comm_mode, u8* gb, size_t gb_len) { struct pn533 *dev = nfc_get_drvdata(nfc_dev); struct pn533_cmd_jump_dep *cmd; - u8 cmd_len, local_gt_len, *local_gt; + u8 cmd_len; int rc; nfc_dev_dbg(&dev->interface->dev, "%s", __func__); - if (rf_mode == NFC_RF_TARGET) { - nfc_dev_err(&dev->interface->dev, "Target mode not supported"); - return -EOPNOTSUPP; - } - - if (dev->poll_mod_count) { nfc_dev_err(&dev->interface->dev, "Cannot bring the DEP link up while polling"); @@ -1367,11 +1361,7 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, int target_idx, return -EBUSY; } - local_gt = nfc_get_local_general_bytes(dev->nfc_dev, &local_gt_len); - if (local_gt_len > NFC_MAX_GT_LEN) - return -EINVAL; - - cmd_len = sizeof(struct pn533_cmd_jump_dep) + local_gt_len; + cmd_len = sizeof(struct pn533_cmd_jump_dep) + gb_len; cmd = kzalloc(cmd_len, GFP_KERNEL); if (cmd == NULL) return -ENOMEM; @@ -1380,9 +1370,9 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, int target_idx, cmd->active = !comm_mode; cmd->baud = 0; - if (local_gt != NULL) { + if (gb != NULL && gb_len > 0) { cmd->next = 4; /* We have some Gi */ - memcpy(cmd->gt, local_gt, local_gt_len); + memcpy(cmd->gt, gb, gb_len); } else { cmd->next = 0; } diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h index d253278..d608e4e 100644 --- a/include/net/nfc/nfc.h +++ b/include/net/nfc/nfc.h @@ -53,8 +53,8 @@ struct nfc_ops { int (*dev_down)(struct nfc_dev *dev); int (*start_poll)(struct nfc_dev *dev, u32 protocols); void (*stop_poll)(struct nfc_dev *dev); - int (*dep_link_up)(struct nfc_dev *dev, int target_idx, - u8 comm_mode, u8 rf_mode); + int (*dep_link_up)(struct nfc_dev *dev, int target_idx, u8 comm_mode, + u8 *gb, size_t gb_len); int (*dep_link_down)(struct nfc_dev *dev); int (*activate_target)(struct nfc_dev *dev, u32 target_idx, u32 protocol); @@ -179,8 +179,6 @@ struct sk_buff *nfc_alloc_recv_skb(unsigned int size, gfp_t gfp); int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gt, u8 gt_len); -u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, u8 *gt_len); - int nfc_targets_found(struct nfc_dev *dev, struct nfc_target *targets, int ntargets); diff --git a/net/nfc/core.c b/net/nfc/core.c index 6089aca..f4f526f 100644 --- a/net/nfc/core.c +++ b/net/nfc/core.c @@ -181,13 +181,13 @@ error: return rc; } -int nfc_dep_link_up(struct nfc_dev *dev, int target_index, - u8 comm_mode, u8 rf_mode) +int nfc_dep_link_up(struct nfc_dev *dev, int target_index, u8 comm_mode) { int rc = 0; + u8 *gb; + size_t gb_len; - pr_debug("dev_name=%s comm:%d rf:%d\n", - dev_name(&dev->dev), comm_mode, rf_mode); + pr_debug("dev_name=%s comm %d\n", dev_name(&dev->dev), comm_mode); if (!dev->ops->dep_link_up) return -EOPNOTSUPP; @@ -204,7 +204,13 @@ int nfc_dep_link_up(struct nfc_dev *dev, int target_index, goto error; } - rc = dev->ops->dep_link_up(dev, target_index, comm_mode, rf_mode); + gb = nfc_llcp_general_bytes(dev, &gb_len); + if (gb_len > NFC_MAX_GT_LEN) { + rc = -EINVAL; + goto error; + } + + rc = dev->ops->dep_link_up(dev, target_index, comm_mode, gb, gb_len); error: device_unlock(&dev->dev); @@ -367,12 +373,6 @@ int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len) } EXPORT_SYMBOL(nfc_set_remote_general_bytes); -u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, u8 *gt_len) -{ - return nfc_llcp_general_bytes(dev, gt_len); -} -EXPORT_SYMBOL(nfc_get_local_general_bytes); - /** * nfc_alloc_send_skb - allocate a skb for data exchange responses * diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c index a0cb133..3ce646e 100644 --- a/net/nfc/llcp/llcp.c +++ b/net/nfc/llcp/llcp.c @@ -281,7 +281,7 @@ void nfc_llcp_put_ssap(struct nfc_llcp_local *local, u8 ssap) mutex_unlock(&local->sdp_lock); } -u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *general_bytes_len) +u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len) { struct nfc_llcp_local *local; diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index a1388e4..fa620d0 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -542,13 +542,12 @@ static int nfc_genl_dep_link_up(struct sk_buff *skb, struct genl_info *info) struct nfc_dev *dev; int rc, tgt_idx; u32 idx; - u8 comm, rf; + u8 comm; pr_debug("DEP link up\n"); if (!info->attrs[NFC_ATTR_DEVICE_INDEX] || - !info->attrs[NFC_ATTR_COMM_MODE] || - !info->attrs[NFC_ATTR_RF_MODE]) + !info->attrs[NFC_ATTR_COMM_MODE]) return -EINVAL; idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]); @@ -558,19 +557,15 @@ static int nfc_genl_dep_link_up(struct sk_buff *skb, struct genl_info *info) tgt_idx = nla_get_u32(info->attrs[NFC_ATTR_TARGET_INDEX]); comm = nla_get_u8(info->attrs[NFC_ATTR_COMM_MODE]); - rf = nla_get_u8(info->attrs[NFC_ATTR_RF_MODE]); if (comm != NFC_COMM_ACTIVE && comm != NFC_COMM_PASSIVE) return -EINVAL; - if (rf != NFC_RF_INITIATOR && comm != NFC_RF_TARGET) - return -EINVAL; - dev = nfc_get_device(idx); if (!dev) return -ENODEV; - rc = nfc_dep_link_up(dev, tgt_idx, comm, rf); + rc = nfc_dep_link_up(dev, tgt_idx, comm); nfc_put_device(dev); diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h index 6d28d75..2fd83b1 100644 --- a/net/nfc/nfc.h +++ b/net/nfc/nfc.h @@ -54,7 +54,7 @@ void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx, int nfc_llcp_register_device(struct nfc_dev *dev); void nfc_llcp_unregister_device(struct nfc_dev *dev); int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len); -u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *general_bytes_len); +u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len); int __init nfc_llcp_init(void); void nfc_llcp_exit(void); @@ -160,8 +160,7 @@ int nfc_start_poll(struct nfc_dev *dev, u32 protocols); int nfc_stop_poll(struct nfc_dev *dev); -int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, - u8 comm_mode, u8 rf_mode); +int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode); int nfc_dep_link_down(struct nfc_dev *dev); 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