diff options
author | David S. Miller <davem@davemloft.net> | 2013-11-05 02:34:57 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2013-11-05 02:34:57 -0500 |
commit | cfce0a2b61d0658d40bc2af2dca28a817804e17a (patch) | |
tree | 9dae9fbd6d072fc2ee0995ffe60516dcbf29fb77 /net/nfc/digital.h | |
parent | ba275241030cfe87b87d6592345c7e7ebd9b6fba (diff) | |
parent | 87bc0728d462ae37841a550542829aa65a97e7c2 (diff) |
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:
====================
Please accept the following pull request intended for the 3.13 tree...
I had intended to pass most of these to you as much as two weeks ago.
Unfortunately, I failed to account for the effects of bad Internet
connections and my own fatique/laziness while traveling. On the bright
side, at least these have been baking in linux-next for some time!
For the mac80211 bits, Johannes says:
"This time I have two fixes for P2P (which requires not using CCK rates)
and a workaround for APs with broken WMM information."
For the iwlwifi bits, Johannes says:
"I have a few fixes for warnings/issues: one from Alex, fixing scan
timings, one from Emmanuel fixing a WARN_ON in the DVM driver, one from
Stanislaw removing a trigger-happy WARN_ON in the MVM driver and a
change from myself to try to recover when the device isn't processing
commands quickly."
And:
"For this round, I have a lot of changes:
* power management improvements
* BT coexistence improvements/updates
* new device support
* VHT support
* IBSS support (though due to a small bug it requires new firmware)
* various other fixes/improvements."
For the Bluetooth bits, Gustavo says:
"More patches for 3.12, busy times for Bluetooth. More than a 100 commits since
the last pull. The bulk of work comes from Johan and Marcel, they are doing
fixes and improvements all over the Bluetooth subsystem, as the diffstat can
show."
For the ath10k and ath6kl bits, Kalle says:
"Bartosz added support to ath10k for our 10.x AP firmware branch, which
gives us AP specific features and fixes. We still support the main
firmware branch as well just like before, ath10k detects runtime what
firmware is used. Unfortunately the firmware interface in 10.x branch is
somewhat different so there was quite a lot of changes in ath10k for
this.
Michal and Sujith did some performance improvements in ath10k. Vladimir
fixed a compiler warning and Fengguang removed an extra semicolon."
For the NFC bits, Samuel says:
"It's a fairly big one, with the following highlights:
- NFC digital layer implementation: Most NFC chipsets implement the NFC
digital layer in firmware, but others have more basic functionalities
and expect the host to implement the digital layer. This layer sits
below the NFC core.
- Sony's port100 support: This is "soft" NFC USB dongle that expects the
digital layer to be implemented on the host. This is the first user of
our NFC digital stack implementation.
- Secure element API: We now provide a netlink API for enabling,
disabling and discovering NFC attached (embedded or UICC ones) secure
elements. With some userspace help, this allows us to support NFC
payments.
Only the pn544 driver currently supports that API.
- NCI SPI fixes and improvements: In order to support NCI devices over
SPI, we fixed and improved our NCI/SPI implementation. The currently
most deployed NFC NCI chipset, Broadcom's bcm2079x, supports that mode
and we're planning to use our NCI/SPI framework to implement a
driver for it.
- pn533 fragmentation support in target mode: This was the only missing
feature from our pn533 impementation. We now support fragmentation in
both Tx and Rx modes, in target mode."
On top of all that, brcmfmac and rt2x00 both get the usual flurry
of updates. A few other drivers get hit here or there as well.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/nfc/digital.h')
-rw-r--r-- | net/nfc/digital.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/net/nfc/digital.h b/net/nfc/digital.h new file mode 100644 index 000000000000..08b29b55ea63 --- /dev/null +++ b/net/nfc/digital.h @@ -0,0 +1,170 @@ +/* + * NFC Digital Protocol stack + * Copyright (c) 2013, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#ifndef __DIGITAL_H +#define __DIGITAL_H + +#include <net/nfc/nfc.h> +#include <net/nfc/digital.h> + +#include <linux/crc-ccitt.h> +#include <linux/crc-itu-t.h> + +#define PROTOCOL_ERR(req) pr_err("%d: NFC Digital Protocol error: %s\n", \ + __LINE__, req) + +#define DIGITAL_CMD_IN_SEND 0 +#define DIGITAL_CMD_TG_SEND 1 +#define DIGITAL_CMD_TG_LISTEN 2 +#define DIGITAL_CMD_TG_LISTEN_MDAA 3 + +#define DIGITAL_MAX_HEADER_LEN 7 +#define DIGITAL_CRC_LEN 2 + +#define DIGITAL_SENSF_NFCID2_NFC_DEP_B1 0x01 +#define DIGITAL_SENSF_NFCID2_NFC_DEP_B2 0xFE + +#define DIGITAL_SENS_RES_NFC_DEP 0x0100 +#define DIGITAL_SEL_RES_NFC_DEP 0x40 +#define DIGITAL_SENSF_FELICA_SC 0xFFFF + +#define DIGITAL_DRV_CAPS_IN_CRC(ddev) \ + ((ddev)->driver_capabilities & NFC_DIGITAL_DRV_CAPS_IN_CRC) +#define DIGITAL_DRV_CAPS_TG_CRC(ddev) \ + ((ddev)->driver_capabilities & NFC_DIGITAL_DRV_CAPS_TG_CRC) + +struct digital_data_exch { + data_exchange_cb_t cb; + void *cb_context; +}; + +struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev, + unsigned int len); + +int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type, + struct sk_buff *skb, struct digital_tg_mdaa_params *params, + u16 timeout, nfc_digital_cmd_complete_t cmd_cb, + void *cb_context); + +int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param); +static inline int digital_in_send_cmd(struct nfc_digital_dev *ddev, + struct sk_buff *skb, u16 timeout, + nfc_digital_cmd_complete_t cmd_cb, + void *cb_context) +{ + return digital_send_cmd(ddev, DIGITAL_CMD_IN_SEND, skb, NULL, timeout, + cmd_cb, cb_context); +} + +void digital_poll_next_tech(struct nfc_digital_dev *ddev); + +int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech); +int digital_in_send_sensf_req(struct nfc_digital_dev *ddev, u8 rf_tech); + +int digital_target_found(struct nfc_digital_dev *ddev, + struct nfc_target *target, u8 protocol); + +int digital_in_recv_mifare_res(struct sk_buff *resp); + +int digital_in_send_atr_req(struct nfc_digital_dev *ddev, + struct nfc_target *target, __u8 comm_mode, __u8 *gb, + size_t gb_len); +int digital_in_send_dep_req(struct nfc_digital_dev *ddev, + struct nfc_target *target, struct sk_buff *skb, + struct digital_data_exch *data_exch); + +int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param); +static inline int digital_tg_send_cmd(struct nfc_digital_dev *ddev, + struct sk_buff *skb, u16 timeout, + nfc_digital_cmd_complete_t cmd_cb, void *cb_context) +{ + return digital_send_cmd(ddev, DIGITAL_CMD_TG_SEND, skb, NULL, timeout, + cmd_cb, cb_context); +} + +void digital_tg_recv_sens_req(struct nfc_digital_dev *ddev, void *arg, + struct sk_buff *resp); + +void digital_tg_recv_sensf_req(struct nfc_digital_dev *ddev, void *arg, + struct sk_buff *resp); + +static inline int digital_tg_listen(struct nfc_digital_dev *ddev, u16 timeout, + nfc_digital_cmd_complete_t cb, void *arg) +{ + return digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN, NULL, NULL, + timeout, cb, arg); +} + +void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg, + struct sk_buff *resp); + +int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb); + +int digital_tg_listen_nfca(struct nfc_digital_dev *ddev, u8 rf_tech); +int digital_tg_listen_nfcf(struct nfc_digital_dev *ddev, u8 rf_tech); + +typedef u16 (*crc_func_t)(u16, const u8 *, size_t); + +#define CRC_A_INIT 0x6363 +#define CRC_B_INIT 0xFFFF +#define CRC_F_INIT 0x0000 + +void digital_skb_add_crc(struct sk_buff *skb, crc_func_t crc_func, u16 init, + u8 bitwise_inv, u8 msb_first); + +static inline void digital_skb_add_crc_a(struct sk_buff *skb) +{ + digital_skb_add_crc(skb, crc_ccitt, CRC_A_INIT, 0, 0); +} + +static inline void digital_skb_add_crc_b(struct sk_buff *skb) +{ + digital_skb_add_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0); +} + +static inline void digital_skb_add_crc_f(struct sk_buff *skb) +{ + digital_skb_add_crc(skb, crc_itu_t, CRC_F_INIT, 0, 1); +} + +static inline void digital_skb_add_crc_none(struct sk_buff *skb) +{ + return; +} + +int digital_skb_check_crc(struct sk_buff *skb, crc_func_t crc_func, + u16 crc_init, u8 bitwise_inv, u8 msb_first); + +static inline int digital_skb_check_crc_a(struct sk_buff *skb) +{ + return digital_skb_check_crc(skb, crc_ccitt, CRC_A_INIT, 0, 0); +} + +static inline int digital_skb_check_crc_b(struct sk_buff *skb) +{ + return digital_skb_check_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0); +} + +static inline int digital_skb_check_crc_f(struct sk_buff *skb) +{ + return digital_skb_check_crc(skb, crc_itu_t, CRC_F_INIT, 0, 1); +} + +static inline int digital_skb_check_crc_none(struct sk_buff *skb) +{ + return 0; +} + +#endif /* __DIGITAL_H */ |