cregit-Linux how code gets into the kernel

Release 4.14 drivers/bluetooth/hci_h5.c

/*
 *
 *  Bluetooth HCI Three-wire UART driver
 *
 *  Copyright (C) 2012  Intel Corporation
 *
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/skbuff.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "hci_uart.h"


#define HCI_3WIRE_ACK_PKT	0

#define HCI_3WIRE_LINK_PKT	15

/* Sliding window size */

#define H5_TX_WIN_MAX		4


#define H5_ACK_TIMEOUT	msecs_to_jiffies(250)

#define H5_SYNC_TIMEOUT	msecs_to_jiffies(100)

/*
 * Maximum Three-wire packet:
 *     4 byte header + max value for 12-bit length + 2 bytes for CRC
 */

#define H5_MAX_LEN (4 + 0xfff + 2)

/* Convenience macros for reading Three-wire header values */

#define H5_HDR_SEQ(hdr)		((hdr)[0] & 0x07)

#define H5_HDR_ACK(hdr)		(((hdr)[0] >> 3) & 0x07)

#define H5_HDR_CRC(hdr)		(((hdr)[0] >> 6) & 0x01)

#define H5_HDR_RELIABLE(hdr)	(((hdr)[0] >> 7) & 0x01)

#define H5_HDR_PKT_TYPE(hdr)	((hdr)[1] & 0x0f)

#define H5_HDR_LEN(hdr)		((((hdr)[1] >> 4) & 0x0f) + ((hdr)[2] << 4))


#define SLIP_DELIMITER	0xc0

#define SLIP_ESC	0xdb

#define SLIP_ESC_DELIM	0xdc

#define SLIP_ESC_ESC	0xdd

/* H5 state flags */
enum {
	
H5_RX_ESC,	/* SLIP escape mode */
	
H5_TX_ACK_REQ,	/* Pending ack to send */
};


struct h5 {
	
struct sk_buff_head	unack;		/* Unack'ed packets queue */
	
struct sk_buff_head	rel;		/* Reliable packets queue */
	
struct sk_buff_head	unrel;		/* Unreliable packets queue */

	
unsigned long		flags;

	
struct sk_buff		*rx_skb;	/* Receive buffer */
	
size_t			rx_pending;	/* Expecting more bytes */
	
u8			rx_ack;		/* Last ack number received */

	
int			(*rx_func)(struct hci_uart *hu, u8 c);

	
struct timer_list	timer;		/* Retransmission timer */

	
u8			tx_seq;		/* Next seq number to send */
	
u8			tx_ack;		/* Next ack number to send */
	
u8			tx_win;		/* Sliding window size */

	enum {
		
H5_UNINITIALIZED,
		
H5_INITIALIZED,
		
H5_ACTIVE,
        } 
state;

	enum {
		
H5_AWAKE,
		
H5_SLEEPING,
		
H5_WAKING_UP,
        } 
sleep;
};

static void h5_reset_rx(struct h5 *h5);


static void h5_link_control(struct hci_uart *hu, const void *data, size_t len) { struct h5 *h5 = hu->priv; struct sk_buff *nskb; nskb = alloc_skb(3, GFP_ATOMIC); if (!nskb) return; hci_skb_pkt_type(nskb) = HCI_3WIRE_LINK_PKT; skb_put_data(nskb, data, len); skb_queue_tail(&h5->unrel, nskb); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg7297.30%133.33%
Johannes Berg11.35%133.33%
Marcel Holtmann11.35%133.33%
Total74100.00%3100.00%


static u8 h5_cfg_field(struct h5 *h5) { /* Sliding window size (first 3 bits) */ return h5->tx_win & 0x07; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg1789.47%133.33%
Andrei Emeltchenko210.53%266.67%
Total19100.00%3100.00%


static void h5_timed_event(unsigned long arg) { const unsigned char sync_req[] = { 0x01, 0x7e }; unsigned char conf_req[3] = { 0x03, 0xfc }; struct hci_uart *hu = (struct hci_uart *)arg; struct h5 *h5 = hu->priv; struct sk_buff *skb; unsigned long flags; BT_DBG("%s", hu->hdev->name); if (h5->state == H5_UNINITIALIZED) h5_link_control(hu, sync_req, sizeof(sync_req)); if (h5->state == H5_INITIALIZED) { conf_req[2] = h5_cfg_field(h5); h5_link_control(hu, conf_req, sizeof(conf_req)); } if (h5->state != H5_ACTIVE) { mod_timer(&h5->timer, jiffies + H5_SYNC_TIMEOUT); goto wakeup; } if (h5->sleep != H5_AWAKE) { h5->sleep = H5_SLEEPING; goto wakeup; } BT_DBG("hu %p retransmitting %u pkts", hu, h5->unack.qlen); spin_lock_irqsave_nested(&h5->unack.lock, flags, SINGLE_DEPTH_NESTING); while ((skb = __skb_dequeue_tail(&h5->unack)) != NULL) { h5->tx_seq = (h5->tx_seq - 1) & 0x07; skb_queue_head(&h5->rel, skb); } spin_unlock_irqrestore(&h5->unack.lock, flags); wakeup: hci_uart_tx_wakeup(hu); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg25798.85%583.33%
Andrei Emeltchenko31.15%116.67%
Total260100.00%6100.00%


static void h5_peer_reset(struct hci_uart *hu) { struct h5 *h5 = hu->priv; BT_ERR("Peer device has reset"); h5->state = H5_UNINITIALIZED; del_timer(&h5->timer); skb_queue_purge(&h5->rel); skb_queue_purge(&h5->unrel); skb_queue_purge(&h5->unack); h5->tx_seq = 0; h5->tx_ack = 0; /* Send reset request to upper stack */ hci_reset_dev(hu->hdev); }

Contributors

PersonTokensPropCommitsCommitProp
Loic Poulain8197.59%150.00%
Marcel Holtmann22.41%150.00%
Total83100.00%2100.00%


static int h5_open(struct hci_uart *hu) { struct h5 *h5; const unsigned char sync[] = { 0x01, 0x7e }; BT_DBG("hu %p", hu); h5 = kzalloc(sizeof(*h5), GFP_KERNEL); if (!h5) return -ENOMEM; hu->priv = h5; skb_queue_head_init(&h5->unack); skb_queue_head_init(&h5->rel); skb_queue_head_init(&h5->unrel); h5_reset_rx(h5); setup_timer(&h5->timer, h5_timed_event, (unsigned long)hu); h5->tx_win = H5_TX_WIN_MAX; set_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags); /* Send initial sync request */ h5_link_control(hu, sync, sizeof(sync)); mod_timer(&h5->timer, jiffies + H5_SYNC_TIMEOUT); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg14897.37%787.50%
Prasanna Karthik42.63%112.50%
Total152100.00%8100.00%


static int h5_close(struct hci_uart *hu) { struct h5 *h5 = hu->priv; del_timer_sync(&h5->timer); skb_queue_purge(&h5->unack); skb_queue_purge(&h5->rel); skb_queue_purge(&h5->unrel); kfree(h5); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg5490.00%375.00%
Michael Knudsen610.00%125.00%
Total60100.00%4100.00%


static void h5_pkt_cull(struct h5 *h5) { struct sk_buff *skb, *tmp; unsigned long flags; int i, to_remove; u8 seq; spin_lock_irqsave(&h5->unack.lock, flags); to_remove = skb_queue_len(&h5->unack); if (to_remove == 0) goto unlock; seq = h5->tx_seq; while (to_remove > 0) { if (h5->rx_ack == seq) break; to_remove--; seq = (seq - 1) & 0x07; } if (seq != h5->rx_ack) BT_ERR("Controller acked invalid packet"); i = 0; skb_queue_walk_safe(&h5->unack, skb, tmp) { if (i++ >= to_remove) break; __skb_unlink(skb, &h5->unack); kfree_skb(skb); } if (skb_queue_empty(&h5->unack)) del_timer(&h5->timer); unlock: spin_unlock_irqrestore(&h5->unack.lock, flags); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg17898.89%266.67%
Loic Poulain21.11%133.33%
Total180100.00%3100.00%


static void h5_handle_internal_rx(struct hci_uart *hu) { struct h5 *h5 = hu->priv; const unsigned char sync_req[] = { 0x01, 0x7e }; const unsigned char sync_rsp[] = { 0x02, 0x7d }; unsigned char conf_req[3] = { 0x03, 0xfc }; const unsigned char conf_rsp[] = { 0x04, 0x7b }; const unsigned char wakeup_req[] = { 0x05, 0xfa }; const unsigned char woken_req[] = { 0x06, 0xf9 }; const unsigned char sleep_req[] = { 0x07, 0x78 }; const unsigned char *hdr = h5->rx_skb->data; const unsigned char *data = &h5->rx_skb->data[4]; BT_DBG("%s", hu->hdev->name); if (H5_HDR_PKT_TYPE(hdr) != HCI_3WIRE_LINK_PKT) return; if (H5_HDR_LEN(hdr) < 2) return; conf_req[2] = h5_cfg_field(h5); if (memcmp(data, sync_req, 2) == 0) { if (h5->state == H5_ACTIVE) h5_peer_reset(hu); h5_link_control(hu, sync_rsp, 2); } else if (memcmp(data, sync_rsp, 2) == 0) { if (h5->state == H5_ACTIVE) h5_peer_reset(hu); h5->state = H5_INITIALIZED; h5_link_control(hu, conf_req, 3); } else if (memcmp(data, conf_req, 2) == 0) { h5_link_control(hu, conf_rsp, 2); h5_link_control(hu, conf_req, 3); } else if (memcmp(data, conf_rsp, 2) == 0) { if (H5_HDR_LEN(hdr) > 2) h5->tx_win = (data[2] & 0x07); BT_DBG("Three-wire init complete. tx_win %u", h5->tx_win); h5->state = H5_ACTIVE; hci_uart_init_ready(hu); return; } else if (memcmp(data, sleep_req, 2) == 0) { BT_DBG("Peer went to sleep"); h5->sleep = H5_SLEEPING; return; } else if (memcmp(data, woken_req, 2) == 0) { BT_DBG("Peer woke up"); h5->sleep = H5_AWAKE; } else if (memcmp(data, wakeup_req, 2) == 0) { BT_DBG("Peer requested wakeup"); h5_link_control(hu, woken_req, 2); h5->sleep = H5_AWAKE; } else { BT_DBG("Link Control: 0x%02hhx 0x%02hhx", data[0], data[1]); return; } hci_uart_tx_wakeup(hu); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg43393.52%872.73%
Loic Poulain265.62%19.09%
Andrei Emeltchenko40.86%218.18%
Total463100.00%11100.00%


static void h5_complete_rx_pkt(struct hci_uart *hu) { struct h5 *h5 = hu->priv; const unsigned char *hdr = h5->rx_skb->data; if (H5_HDR_RELIABLE(hdr)) { h5->tx_ack = (h5->tx_ack + 1) % 8; set_bit(H5_TX_ACK_REQ, &h5->flags); hci_uart_tx_wakeup(hu); } h5->rx_ack = H5_HDR_ACK(hdr); h5_pkt_cull(h5); switch (H5_HDR_PKT_TYPE(hdr)) { case HCI_EVENT_PKT: case HCI_ACLDATA_PKT: case HCI_SCODATA_PKT: hci_skb_pkt_type(h5->rx_skb) = H5_HDR_PKT_TYPE(hdr); /* Remove Three-wire header */ skb_pull(h5->rx_skb, 4); hci_recv_frame(hu->hdev, h5->rx_skb); h5->rx_skb = NULL; break; default: h5_handle_internal_rx(hu); break; } h5_reset_rx(h5); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg14996.75%571.43%
Marcel Holtmann53.25%228.57%
Total154100.00%7100.00%


static int h5_rx_crc(struct hci_uart *hu, unsigned char c) { h5_complete_rx_pkt(hu); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg23100.00%2100.00%
Total23100.00%2100.00%


static int h5_rx_payload(struct hci_uart *hu, unsigned char c) { struct h5 *h5 = hu->priv; const unsigned char *hdr = h5->rx_skb->data; if (H5_HDR_CRC(hdr)) { h5->rx_func = h5_rx_crc; h5->rx_pending = 2; } else { h5_complete_rx_pkt(hu); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg68100.00%2100.00%
Total68100.00%2100.00%


static int h5_rx_3wire_hdr(struct hci_uart *hu, unsigned char c) { struct h5 *h5 = hu->priv; const unsigned char *hdr = h5->rx_skb->data; BT_DBG("%s rx: seq %u ack %u crc %u rel %u type %u len %u", hu->hdev->name, H5_HDR_SEQ(hdr), H5_HDR_ACK(hdr), H5_HDR_CRC(hdr), H5_HDR_RELIABLE(hdr), H5_HDR_PKT_TYPE(hdr), H5_HDR_LEN(hdr)); if (((hdr[0] + hdr[1] + hdr[2] + hdr[3]) & 0xff) != 0xff) { BT_ERR("Invalid header checksum"); h5_reset_rx(h5); return 0; } if (H5_HDR_RELIABLE(hdr) && H5_HDR_SEQ(hdr) != h5->tx_ack) { BT_ERR("Out-of-order packet arrived (%u != %u)", H5_HDR_SEQ(hdr), h5->tx_ack); h5_reset_rx(h5); return 0; } if (h5->state != H5_ACTIVE && H5_HDR_PKT_TYPE(hdr) != HCI_3WIRE_LINK_PKT) { BT_ERR("Non-link packet received in non-active state"); h5_reset_rx(h5); return 0; } h5->rx_func = h5_rx_payload; h5->rx_pending = H5_HDR_LEN(hdr); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg20798.57%480.00%
Loic Poulain31.43%120.00%
Total210100.00%5100.00%


static int h5_rx_pkt_start(struct hci_uart *hu, unsigned char c) { struct h5 *h5 = hu->priv; if (c == SLIP_DELIMITER) return 1; h5->rx_func = h5_rx_3wire_hdr; h5->rx_pending = 4; h5->rx_skb = bt_skb_alloc(H5_MAX_LEN, GFP_ATOMIC); if (!h5->rx_skb) { BT_ERR("Can't allocate mem for new packet"); h5_reset_rx(h5); return -ENOMEM; } h5->rx_skb->dev = (void *)hu->hdev; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg96100.00%1100.00%
Total96100.00%1100.00%


static int h5_rx_delimiter(struct hci_uart *hu, unsigned char c) { struct h5 *h5 = hu->priv; if (c == SLIP_DELIMITER) h5->rx_func = h5_rx_pkt_start; return 1; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg39100.00%1100.00%
Total39100.00%1100.00%


static void h5_unslip_one_byte(struct h5 *h5, unsigned char c) { const u8 delim = SLIP_DELIMITER, esc = SLIP_ESC; const u8 *byte = &c; if (!test_bit(H5_RX_ESC, &h5->flags) && c == SLIP_ESC) { set_bit(H5_RX_ESC, &h5->flags); return; } if (test_and_clear_bit(H5_RX_ESC, &h5->flags)) { switch (c) { case SLIP_ESC_DELIM: byte = &delim; break; case SLIP_ESC_ESC: byte = &esc; break; default: BT_ERR("Invalid esc byte 0x%02hhx", c); h5_reset_rx(h5); return; } } skb_put_data(h5->rx_skb, byte, 1); h5->rx_pending--; BT_DBG("unsliped 0x%02hhx, rx_pending %zu", *byte, h5->rx_pending); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg14299.30%375.00%
Johannes Berg10.70%125.00%
Total143100.00%4100.00%


static void h5_reset_rx(struct h5 *h5) { if (h5->rx_skb) { kfree_skb(h5->rx_skb); h5->rx_skb = NULL; } h5->rx_func = h5_rx_delimiter; h5->rx_pending = 0; clear_bit(H5_RX_ESC, &h5->flags); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg54100.00%2100.00%
Total54100.00%2100.00%


static int h5_recv(struct hci_uart *hu, const void *data, int count) { struct h5 *h5 = hu->priv; const unsigned char *ptr = data; BT_DBG("%s pending %zu count %d", hu->hdev->name, h5->rx_pending, count); while (count > 0) { int processed; if (h5->rx_pending > 0) { if (*ptr == SLIP_DELIMITER) { BT_ERR("Too short H5 packet"); h5_reset_rx(h5); continue; } h5_unslip_one_byte(h5, *ptr); ptr++; count--; continue; } processed = h5->rx_func(hu, *ptr); if (processed < 0) return processed; ptr += processed; count -= processed; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg13998.58%375.00%
Marcel Holtmann21.42%125.00%
Total141100.00%4100.00%


static int h5_enqueue(struct hci_uart *hu, struct sk_buff *skb) { struct h5 *h5 = hu->priv; if (skb->len > 0xfff) { BT_ERR("Packet too long (%u bytes)", skb->len); kfree_skb(skb); return 0; } if (h5->state != H5_ACTIVE) { BT_ERR("Ignoring HCI data in non-active state"); kfree_skb(skb); return 0; } switch (hci_skb_pkt_type(skb)) { case HCI_ACLDATA_PKT: case HCI_COMMAND_PKT: skb_queue_tail(&h5->rel, skb); break; case HCI_SCODATA_PKT: skb_queue_tail(&h5->unrel, skb); break; default: BT_ERR("Unknown packet type %u", hci_skb_pkt_type(skb)); kfree_skb(skb); break; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg13398.52%375.00%
Marcel Holtmann21.48%125.00%
Total135100.00%4100.00%


static void h5_slip_delim(struct sk_buff *skb) { const char delim = SLIP_DELIMITER; skb_put_data(skb, &delim, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg2696.30%266.67%
Johannes Berg13.70%133.33%
Total27100.00%3100.00%


static void h5_slip_one_byte(struct sk_buff *skb, u8 c) { const char esc_delim[2] = { SLIP_ESC, SLIP_ESC_DELIM }; const char esc_esc[2] = { SLIP_ESC, SLIP_ESC_ESC }; switch (c) { case SLIP_DELIMITER: skb_put_data(skb, &esc_delim, 2); break; case SLIP_ESC: skb_put_data(skb, &esc_esc, 2); break; default: skb_put_data(skb, &c, 1); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg8296.47%266.67%
Johannes Berg33.53%133.33%
Total85100.00%3100.00%


static bool valid_packet_type(u8 type) { switch (type) { case HCI_ACLDATA_PKT: case HCI_COMMAND_PKT: case HCI_SCODATA_PKT: case HCI_3WIRE_LINK_PKT: case HCI_3WIRE_ACK_PKT: return true; default: return false; } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg37100.00%1100.00%
Total37100.00%1100.00%


static struct sk_buff *h5_prepare_pkt(struct hci_uart *hu, u8 pkt_type, const u8 *data, size_t len) { struct h5 *h5 = hu->priv; struct sk_buff *nskb; u8 hdr[4]; int i; if (!valid_packet_type(pkt_type)) { BT_ERR("Unknown packet type %u", pkt_type); return NULL; } /* * Max len of packet: (original len + 4 (H5 hdr) + 2 (crc)) * 2 * (because bytes 0xc0 and 0xdb are escaped, worst case is when * the packet is all made of 0xc0 and 0xdb) + 2 (0xc0 * delimiters at start and end). */ nskb = alloc_skb((len + 6) * 2 + 2, GFP_ATOMIC); if (!nskb) return NULL; hci_skb_pkt_type(nskb) = pkt_type; h5_slip_delim(nskb); hdr[0] = h5->tx_ack << 3; clear_bit(H5_TX_ACK_REQ, &h5->flags); /* Reliable packet? */ if (pkt_type == HCI_ACLDATA_PKT || pkt_type == HCI_COMMAND_PKT) { hdr[0] |= 1 << 7; hdr[0] |= h5->tx_seq; h5->tx_seq = (h5->tx_seq + 1) % 8; } hdr[1] = pkt_type | ((len & 0x0f) << 4); hdr[2] = len >> 4; hdr[3] = ~((hdr[0] + hdr[1] + hdr[2]) & 0xff); BT_DBG("%s tx: seq %u ack %u crc %u rel %u type %u len %u", hu->hdev->name, H5_HDR_SEQ(hdr), H5_HDR_ACK(hdr), H5_HDR_CRC(hdr), H5_HDR_RELIABLE(hdr), H5_HDR_PKT_TYPE(hdr), H5_HDR_LEN(hdr)); for (i = 0; i < 4; i++) h5_slip_one_byte(nskb, hdr[i]); for (i = 0; i < len; i++) h5_slip_one_byte(nskb, data[i]); h5_slip_delim(nskb); return nskb; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg31899.69%685.71%
Marcel Holtmann10.31%114.29%
Total319100.00%7100.00%


static struct sk_buff *h5_dequeue(struct hci_uart *hu) { struct h5 *h5 = hu->priv; unsigned long flags; struct sk_buff *skb, *nskb; if (h5->sleep != H5_AWAKE) { const unsigned char wakeup_req[] = { 0x05, 0xfa }; if (h5->sleep == H5_WAKING_UP) return NULL; h5->sleep = H5_WAKING_UP; BT_DBG("Sending wakeup request"); mod_timer(&h5->timer, jiffies + HZ / 100); return h5_prepare_pkt(hu, HCI_3WIRE_LINK_PKT, wakeup_req, 2); } skb = skb_dequeue(&h5->unrel); if (skb) { nskb = h5_prepare_pkt(hu, hci_skb_pkt_type(skb), skb->data, skb->len); if (nskb) { kfree_skb(skb); return nskb; } skb_queue_head(&h5->unrel, skb); BT_ERR("Could not dequeue pkt because alloc_skb failed"); } spin_lock_irqsave_nested(&h5->unack.lock, flags, SINGLE_DEPTH_NESTING); if (h5->unack.qlen >= h5->tx_win) goto unlock; skb = skb_dequeue(&h5->rel); if (skb) { nskb = h5_prepare_pkt(hu, hci_skb_pkt_type(skb), skb->data, skb->len); if (nskb) { __skb_queue_tail(&h5->unack, skb); mod_timer(&h5->timer, jiffies + H5_ACK_TIMEOUT); spin_unlock_irqrestore(&h5->unack.lock, flags); return nskb; } skb_queue_head(&h5->rel, skb); BT_ERR("Could not dequeue pkt because alloc_skb failed"); } unlock: spin_unlock_irqrestore(&h5->unack.lock, flags); if (test_bit(H5_TX_ACK_REQ, &h5->flags)) return h5_prepare_pkt(hu, HCI_3WIRE_ACK_PKT, NULL, 0); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg32397.00%880.00%
Valentin Ilie82.40%110.00%
Marcel Holtmann20.60%110.00%
Total333100.00%10100.00%


static int h5_flush(struct hci_uart *hu) { BT_DBG("hu %p", hu); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg21100.00%2100.00%
Total21100.00%2100.00%

static const struct hci_uart_proto h5p = { .id = HCI_UART_3WIRE, .name = "Three-wire (H5)", .open = h5_open, .close = h5_close, .recv = h5_recv, .enqueue = h5_enqueue, .dequeue = h5_dequeue, .flush = h5_flush, };
int __init h5_init(void) { return hci_uart_register_proto(&h5p); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg1493.33%150.00%
Marcel Holtmann16.67%150.00%
Total15100.00%2100.00%


int __exit h5_deinit(void) { return hci_uart_unregister_proto(&h5p); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg15100.00%1100.00%
Total15100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg330195.16%1645.71%
Loic Poulain1123.23%38.57%
Marcel Holtmann220.63%720.00%
Andrei Emeltchenko100.29%514.29%
Valentin Ilie80.23%12.86%
Johannes Berg60.17%12.86%
Michael Knudsen60.17%12.86%
Prasanna Karthik40.12%12.86%
Total3469100.00%35100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.