diff options
Diffstat (limited to 'hci/src/hci_h4.c')
| -rw-r--r-- | hci/src/hci_h4.c | 161 |
1 files changed, 89 insertions, 72 deletions
diff --git a/hci/src/hci_h4.c b/hci/src/hci_h4.c index 36c692a..6a1c746 100644 --- a/hci/src/hci_h4.c +++ b/hci/src/hci_h4.c @@ -3,44 +3,44 @@ * Copyright (C) 2009-2012 Broadcom Corporation * * This program is the proprietary software of Broadcom Corporation and/or its - * licensors, and may only be used, duplicated, modified or distributed - * pursuant to the terms and conditions of a separate, written license - * agreement executed between you and Broadcom (an "Authorized License"). - * Except as set forth in an Authorized License, Broadcom grants no license - * (express or implied), right to use, or waiver of any kind with respect to - * the Software, and Broadcom expressly reserves all rights in and to the - * Software and all intellectual property rights therein. - * IF YOU HAVE NO AUTHORIZED LICENSE, THEN YOU HAVE NO RIGHT TO USE THIS + * licensors, and may only be used, duplicated, modified or distributed + * pursuant to the terms and conditions of a separate, written license + * agreement executed between you and Broadcom (an "Authorized License"). + * Except as set forth in an Authorized License, Broadcom grants no license + * (express or implied), right to use, or waiver of any kind with respect to + * the Software, and Broadcom expressly reserves all rights in and to the + * Software and all intellectual property rights therein. + * IF YOU HAVE NO AUTHORIZED LICENSE, THEN YOU HAVE NO RIGHT TO USE THIS * SOFTWARE IN ANY WAY, AND SHOULD IMMEDIATELY NOTIFY BROADCOM AND DISCONTINUE - * ALL USE OF THE SOFTWARE. + * ALL USE OF THE SOFTWARE. * * Except as expressly set forth in the Authorized License, * - * 1. This program, including its structure, sequence and organization, - * constitutes the valuable trade secrets of Broadcom, and you shall - * use all reasonable efforts to protect the confidentiality thereof, - * and to use this information only in connection with your use of + * 1. This program, including its structure, sequence and organization, + * constitutes the valuable trade secrets of Broadcom, and you shall + * use all reasonable efforts to protect the confidentiality thereof, + * and to use this information only in connection with your use of * Broadcom integrated circuit products. * - * 2. TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED - * "AS IS" AND WITH ALL FAULTS AND BROADCOM MAKES NO PROMISES, - * REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, - * OR OTHERWISE, WITH RESPECT TO THE SOFTWARE. BROADCOM SPECIFICALLY - * DISCLAIMS ANY AND ALL IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, - * NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF VIRUSES, - * ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR + * 2. TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED + * "AS IS" AND WITH ALL FAULTS AND BROADCOM MAKES NO PROMISES, + * REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, + * OR OTHERWISE, WITH RESPECT TO THE SOFTWARE. BROADCOM SPECIFICALLY + * DISCLAIMS ANY AND ALL IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, + * NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF VIRUSES, + * ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR * CORRESPONDENCE TO DESCRIPTION. YOU ASSUME THE ENTIRE RISK ARISING OUT * OF USE OR PERFORMANCE OF THE SOFTWARE. * * 3. TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL BROADCOM OR - * ITS LICENSORS BE LIABLE FOR - * (i) CONSEQUENTIAL, INCIDENTAL, SPECIAL, INDIRECT, OR EXEMPLARY - * DAMAGES WHATSOEVER ARISING OUT OF OR IN ANY WAY RELATING TO - * YOUR USE OF OR INABILITY TO USE THE SOFTWARE EVEN IF BROADCOM - * HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES; OR - * (ii) ANY AMOUNT IN EXCESS OF THE AMOUNT ACTUALLY PAID FOR THE - * SOFTWARE ITSELF OR U.S. $1, WHICHEVER IS GREATER. THESE - * LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF + * ITS LICENSORS BE LIABLE FOR + * (i) CONSEQUENTIAL, INCIDENTAL, SPECIAL, INDIRECT, OR EXEMPLARY + * DAMAGES WHATSOEVER ARISING OUT OF OR IN ANY WAY RELATING TO + * YOUR USE OF OR INABILITY TO USE THE SOFTWARE EVEN IF BROADCOM + * HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES; OR + * (ii) ANY AMOUNT IN EXCESS OF THE AMOUNT ACTUALLY PAID FOR THE + * SOFTWARE ITSELF OR U.S. $1, WHICHEVER IS GREATER. THESE + * LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF * ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. * ******************************************************************************/ @@ -59,6 +59,7 @@ #include <stdlib.h> #include <fcntl.h> #include "bt_hci_bdroid.h" +#include "hci.h" #include "userial.h" #include "utils.h" @@ -66,14 +67,14 @@ ** Constants & Macros ******************************************************************************/ -#ifndef HCIH4_DBG -#define HCIH4_DBG FALSE +#ifndef HCI_DBG +#define HCI_DBG FALSE #endif -#if (HCIH4_DBG == TRUE) -#define HCIH4DBG(param, ...) {LOGD(param, ## __VA_ARGS__);} +#if (HCI_DBG == TRUE) +#define HCIDBG(param, ...) {LOGD(param, ## __VA_ARGS__);} #else -#define HCIH4DBG(param, ...) {} +#define HCIDBG(param, ...) {} #endif /* Preamble length for HCI Commands: @@ -124,7 +125,7 @@ static const uint16_t msg_evt_table[] = #define L2CAP_HEADER_SIZE 4 /* Maximum numbers of allowed internal -** outstanding command packets at any time +** outstanding command packets at any time */ #define INT_CMD_PKT_MAX_COUNT 8 #define INT_CMD_PKT_IDX_MASK 0x07 @@ -152,8 +153,8 @@ typedef void (*tINT_CMD_CBACK)(void *p_mem); typedef struct { uint16_t opcode; /* OPCODE of outstanding internal commands */ - tINT_CMD_CBACK cback; /* Callback function when return of internal - * command is received */ + tINT_CMD_CBACK cback; /* Callback function when return of internal + * command is received */ } tINT_CMD_Q; /* Control block for HCISU_H4 */ @@ -211,8 +212,8 @@ static tHCI_H4_CB h4_cb; ** Function get_acl_data_length_cback ** ** Description Callback function for HCI_READ_BUFFER_SIZE and -** HCI_LE_READ_BUFFER_SIZE commands if they were sent because -** of internal request. +** HCI_LE_READ_BUFFER_SIZE commands if they were sent because +** of internal request. ** ** Returns None ** @@ -271,9 +272,9 @@ void get_acl_data_length_cback(void *p_mem) ** Function internal_event_intercept ** ** Description This function is called to parse received HCI event and -** - update the Num_HCI_Command_Packets -** - intercept the event if it is the result of an early -** issued internal command. +** - update the Num_HCI_Command_Packets +** - intercept the event if it is the result of an early +** issued internal command. ** ** Returns TRUE : if the event had been intercepted for internal process ** FALSE : send this event to core stack @@ -301,7 +302,7 @@ uint8_t internal_event_intercept(void) if (opcode == p_cb->int_cmd[p_cb->int_cmd_rd_idx].opcode) { - HCIH4DBG( \ + HCIDBG( \ "Intercept CommandCompleteEvent for internal command (0x%04X)",\ opcode); if (p_cb->int_cmd[p_cb->int_cmd_rd_idx].cback != NULL) @@ -337,12 +338,12 @@ uint8_t internal_event_intercept(void) ** ** Function acl_rx_frame_buffer_alloc ** -** Description This function is called from the HCI transport when the +** Description This function is called from the HCI transport when the ** first 4 or 6 bytes of an HCI ACL packet have been received: -** - Allocate a new buffer if it is a start pakcet of L2CAP +** - Allocate a new buffer if it is a start pakcet of L2CAP ** message. -** - Return the buffer address of the starting L2CAP message -** frame if the packet is the next segment of a fragmented +** - Return the buffer address of the starting L2CAP message +** frame if the packet is the next segment of a fragmented ** L2CAP message. ** ** Returns the address of the receive buffer H4 RX should use @@ -465,8 +466,8 @@ static HC_BT_HDR *acl_rx_frame_buffer_alloc (void) ** Function acl_rx_frame_end_chk ** ** Description This function is called from the HCI transport when the last -** byte of an HCI ACL packet has been received. It checks if -** the L2CAP message is complete, i.e. no more continuation +** byte of an HCI ACL packet has been received. It checks if +** the L2CAP message is complete, i.e. no more continuation ** packets are expected. ** ** Returns TRUE if message complete, FALSE if continuation expected @@ -478,7 +479,7 @@ static uint8_t acl_rx_frame_end_chk (void) uint16_t handle, hci_len, l2cap_len; HC_BT_HDR *p_buf; tHCI_H4_CB *p_cb = &h4_cb; - uint8_t frame_end=TRUE; + uint8_t frame_end=TRUE; p_buf = p_cb->p_rcv_msg; p = (uint8_t *)(p_buf + 1); @@ -491,7 +492,7 @@ static uint8_t acl_rx_frame_end_chk (void) { if (l2cap_len > (p_buf->len-(HCI_ACL_PREAMBLE_SIZE+L2CAP_HEADER_SIZE)) ) { - /* If the L2CAP length has not been reached, tell H4 not to send + /* If the L2CAP length has not been reached, tell H4 not to send * this buffer to stack */ frame_end = FALSE; } @@ -506,8 +507,8 @@ static uint8_t acl_rx_frame_end_chk (void) } } - /**** - ** Print snoop trace + /**** + ** Print snoop trace ****/ if (p_buf->offset) { @@ -532,7 +533,7 @@ static uint8_t acl_rx_frame_end_chk (void) /* roll pointer back */ p = p - HCI_ACL_PREAMBLE_SIZE; - /* adjust `p_buf->offset` & `p_buf->len` + /* adjust `p_buf->offset` & `p_buf->len` * before calling btsnoop_capture() */ p_buf->offset = p_buf->offset - HCI_ACL_PREAMBLE_SIZE; p_buf->len = p_buf->len - p_buf->offset; @@ -574,7 +575,7 @@ static uint8_t acl_rx_frame_end_chk (void) *******************************************************************************/ void hci_h4_init(void) { - HCIH4DBG("hci_h4_init"); + HCIDBG("hci_h4_init"); memset(&h4_cb, 0, sizeof(tHCI_H4_CB)); utils_queue_init(&(h4_cb.acl_rx_q)); @@ -602,7 +603,7 @@ void hci_h4_init(void) *******************************************************************************/ void hci_h4_cleanup(void) { - HCIH4DBG("hci_h4_cleanup"); + HCIDBG("hci_h4_cleanup"); btsnoop_close(); btsnoop_cleanup(); @@ -662,7 +663,7 @@ void hci_h4_send_msg(HC_BT_HDR *p_msg) /* Do all the first chunks */ while (p_msg->len > acl_pkt_size) { - /* remember layer_specific because uart borrow + /* remember layer_specific because uart borrow one byte from layer_specific for packet type */ lay_spec = p_msg->layer_specific; @@ -670,14 +671,14 @@ void hci_h4_send_msg(HC_BT_HDR *p_msg) *p = type; bytes_to_send = acl_pkt_size + 1; /* packet_size + message type */ - bytes_sent = userial_write((uint8_t *) p, bytes_to_send); + bytes_sent = userial_write(event,(uint8_t *) p,bytes_to_send); /* generate snoop trace message */ btsnoop_capture(p_msg, FALSE); p_msg->layer_specific = lay_spec; /* Adjust offset and length for what we just sent */ - p_msg->offset += acl_data_size; + p_msg->offset += acl_data_size; p_msg->len -= acl_data_size; p = ((uint8_t *)(p_msg + 1)) + p_msg->offset; @@ -715,7 +716,7 @@ void hci_h4_send_msg(HC_BT_HDR *p_msg) } - /* remember layer_specific because uart borrow + /* remember layer_specific because uart borrow one byte from layer_specific for packet type */ lay_spec = p_msg->layer_specific; @@ -724,7 +725,7 @@ void hci_h4_send_msg(HC_BT_HDR *p_msg) *p = type; bytes_to_send = p_msg->len + 1; /* message_size + message type */ - bytes_sent = userial_write((uint8_t *) p, bytes_to_send); + bytes_sent = userial_write(event,(uint8_t *) p, bytes_to_send); p_msg->layer_specific = lay_spec; @@ -733,7 +734,7 @@ void hci_h4_send_msg(HC_BT_HDR *p_msg) num_hci_cmd_pkts--; /* If this is an internal Cmd packet, the layer_specific field would - * have stored with the opcode of HCI command. + * have stored with the opcode of HCI command. * Retrieve the opcode from the Cmd packet. */ p++; @@ -769,9 +770,10 @@ void hci_h4_send_msg(HC_BT_HDR *p_msg) ** ** Function hci_h4_receive_msg ** -** Description +** Description Construct HCI EVENT/ACL packets and send them to stack once +** complete packet has been received. ** -** Returns +** Returns Number of read bytes ** *******************************************************************************/ uint16_t hci_h4_receive_msg(void) @@ -785,7 +787,7 @@ uint16_t hci_h4_receive_msg(void) while (TRUE) { /* Read one byte to see if there is anything waiting to be read */ - if (userial_read(&byte, 1) == 0) + if (userial_read(0 /*dummy*/, &byte, 1) == 0) { break; } @@ -837,7 +839,7 @@ uint16_t hci_h4_receive_msg(void) { /* * A start packet & with non-zero data payload length. - * We want to read 2 more bytes to get L2CAP payload + * We want to read 2 more bytes to get L2CAP payload * length. */ p_cb->rcv_len = 2; @@ -847,15 +849,15 @@ uint16_t hci_h4_receive_msg(void) } /* - * Check for segmented packets. If this is a continuation - * packet, then we will continue appending data to the + * Check for segmented packets. If this is a continuation + * packet, then we will continue appending data to the * original rcv buffer. */ p_cb->p_rcv_msg = acl_rx_frame_buffer_alloc(); } else { - /* Received entire preamble. + /* Received entire preamble. * Length is in the last received byte */ msg_len = byte; p_cb->rcv_len = msg_len; @@ -910,7 +912,7 @@ uint16_t hci_h4_receive_msg(void) } else { - /* Message has no additional parameters. + /* Message has no additional parameters. * (Entire message has been received) */ if (p_cb->rcv_msg_type == H4_TYPE_ACL_DATA) acl_rx_frame_end_chk(); /* to print snoop trace */ @@ -930,7 +932,7 @@ uint16_t hci_h4_receive_msg(void) if (p_cb->rcv_len > 0) { /* Read in the rest of the message */ - len = userial_read( \ + len = userial_read(0 /*dummy*/, \ ((uint8_t *)(p_cb->p_rcv_msg+1) + p_cb->p_rcv_msg->len), \ p_cb->rcv_len); p_cb->p_rcv_msg->len += len; @@ -981,13 +983,13 @@ uint16_t hci_h4_receive_msg(void) /* generate snoop trace message */ /* ACL packet tracing had done in acl_rx_frame_end_chk() */ - if (p_cb->p_rcv_msg->event != MSG_HC_TO_STACK_HCI_ACL) + if (p_cb->p_rcv_msg->event != MSG_HC_TO_STACK_HCI_ACL) btsnoop_capture(p_cb->p_rcv_msg, TRUE); if (p_cb->p_rcv_msg->event == MSG_HC_TO_STACK_HCI_EVT) intercepted = internal_event_intercept(); - if ((bt_hc_cbacks) && (intercepted == FALSE)) + if ((bt_hc_cbacks) && (intercepted == FALSE)) { bt_hc_cbacks->data_ind((TRANSAC) p_cb->p_rcv_msg, \ (char *) (p_cb->p_rcv_msg + 1), \ @@ -1085,3 +1087,18 @@ void hci_h4_get_acl_data_length(void) } } + +/****************************************************************************** +** HCI H4 Services interface table +******************************************************************************/ + +const tHCI_IF hci_h4_func_table = +{ + hci_h4_init, + hci_h4_cleanup, + hci_h4_send_msg, + hci_h4_send_int_cmd, + hci_h4_get_acl_data_length, + hci_h4_receive_msg +}; + |