diff options
Diffstat (limited to 'hw/bt-hci.c')
| -rw-r--r-- | hw/bt-hci.c | 2220 |
1 files changed, 2220 insertions, 0 deletions
diff --git a/hw/bt-hci.c b/hw/bt-hci.c new file mode 100644 index 0000000000..36d551f3b4 --- /dev/null +++ b/hw/bt-hci.c @@ -0,0 +1,2220 @@ +/* + * QEMU Bluetooth HCI logic. + * + * Copyright (C) 2007 OpenMoko, Inc. + * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org> + * + * 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., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include "qemu-common.h" +#include "qemu-timer.h" +#include "usb.h" +#include "net.h" +#include "bt.h" + +struct bt_hci_s { + uint8_t *(*evt_packet)(void *opaque); + void (*evt_submit)(void *opaque, int len); + void *opaque; + uint8_t evt_buf[256]; + + uint8_t acl_buf[4096]; + int acl_len; + + uint16_t asb_handle; + uint16_t psb_handle; + + int last_cmd; /* Note: Always little-endian */ + + struct bt_device_s *conn_req_host; + + struct { + int inquire; + int periodic; + int responses_left; + int responses; + QEMUTimer *inquiry_done; + QEMUTimer *inquiry_next; + int inquiry_length; + int inquiry_period; + int inquiry_mode; + +#define HCI_HANDLE_OFFSET 0x20 +#define HCI_HANDLES_MAX 0x10 + struct bt_hci_master_link_s { + struct bt_link_s *link; + void (*lmp_acl_data)(struct bt_link_s *link, + const uint8_t *data, int start, int len); + QEMUTimer *acl_mode_timer; + } handle[HCI_HANDLES_MAX]; + uint32_t role_bmp; + int last_handle; + int connecting; + bdaddr_t awaiting_bdaddr[HCI_HANDLES_MAX]; + } lm; + + uint8_t event_mask[8]; + uint16_t voice_setting; /* Notw: Always little-endian */ + uint16_t conn_accept_tout; + QEMUTimer *conn_accept_timer; + + struct HCIInfo info; + struct bt_device_s device; +}; + +#define DEFAULT_RSSI_DBM 20 + +#define hci_from_info(ptr) container_of((ptr), struct bt_hci_s, info) +#define hci_from_device(ptr) container_of((ptr), struct bt_hci_s, device) + +struct bt_hci_link_s { + struct bt_link_s btlink; + uint16_t handle; /* Local */ +}; + +/* LMP layer emulation */ +void bt_submit_lmp(struct bt_device_s *bt, int length, uint8_t *data) +{ + int resp, resplen, error, op, tr; + uint8_t respdata[17]; + + if (length < 1) + return; + + tr = *data & 1; + op = *(data ++) >> 1; + resp = LMP_ACCEPTED; + resplen = 2; + respdata[1] = op; + error = 0; + length --; + + if (op >= 0x7c) { /* Extended opcode */ + op |= *(data ++) << 8; + resp = LMP_ACCEPTED_EXT; + resplen = 4; + respdata[0] = op >> 8; + respdata[1] = op & 0xff; + length --; + } + + switch (op) { + case LMP_ACCEPTED: + /* data[0] Op code + */ + if (length < 1) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + resp = 0; + break; + + case LMP_ACCEPTED_EXT: + /* data[0] Escape op code + * data[1] Extended op code + */ + if (length < 2) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + resp = 0; + break; + + case LMP_NOT_ACCEPTED: + /* data[0] Op code + * data[1] Error code + */ + if (length < 2) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + resp = 0; + break; + + case LMP_NOT_ACCEPTED_EXT: + /* data[0] Op code + * data[1] Extended op code + * data[2] Error code + */ + if (length < 3) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + resp = 0; + break; + + case LMP_HOST_CONNECTION_REQ: + break; + + case LMP_SETUP_COMPLETE: + resp = LMP_SETUP_COMPLETE; + resplen = 1; + bt->setup = 1; + break; + + case LMP_DETACH: + /* data[0] Error code + */ + if (length < 1) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + bt->setup = 0; + resp = 0; + break; + + case LMP_SUPERVISION_TIMEOUT: + /* data[0,1] Supervision timeout + */ + if (length < 2) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + resp = 0; + break; + + case LMP_QUALITY_OF_SERVICE: + resp = 0; + /* Fall through */ + case LMP_QOS_REQ: + /* data[0,1] Poll interval + * data[2] N(BC) + */ + if (length < 3) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + break; + + case LMP_MAX_SLOT: + resp = 0; + /* Fall through */ + case LMP_MAX_SLOT_REQ: + /* data[0] Max slots + */ + if (length < 1) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + break; + + case LMP_AU_RAND: + case LMP_IN_RAND: + case LMP_COMB_KEY: + /* data[0-15] Random number + */ + if (length < 16) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + if (op == LMP_AU_RAND) { + if (bt->key_present) { + resp = LMP_SRES; + resplen = 5; + /* XXX: [Part H] Section 6.1 on page 801 */ + } else { + error = HCI_PIN_OR_KEY_MISSING; + goto not_accepted; + } + } else if (op == LMP_IN_RAND) { + error = HCI_PAIRING_NOT_ALLOWED; + goto not_accepted; + } else { + /* XXX: [Part H] Section 3.2 on page 779 */ + resp = LMP_UNIT_KEY; + resplen = 17; + memcpy(respdata + 1, bt->key, 16); + + error = HCI_UNIT_LINK_KEY_USED; + goto not_accepted; + } + break; + + case LMP_UNIT_KEY: + /* data[0-15] Key + */ + if (length < 16) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + memcpy(bt->key, data, 16); + bt->key_present = 1; + break; + + case LMP_SRES: + /* data[0-3] Authentication response + */ + if (length < 4) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + break; + + case LMP_CLKOFFSET_REQ: + resp = LMP_CLKOFFSET_RES; + resplen = 3; + respdata[1] = 0x33; + respdata[2] = 0x33; + break; + + case LMP_CLKOFFSET_RES: + /* data[0,1] Clock offset + * (Slave to master only) + */ + if (length < 2) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + break; + + case LMP_VERSION_REQ: + case LMP_VERSION_RES: + /* data[0] VersNr + * data[1,2] CompId + * data[3,4] SubVersNr + */ + if (length < 5) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + if (op == LMP_VERSION_REQ) { + resp = LMP_VERSION_RES; + resplen = 6; + respdata[1] = 0x20; + respdata[2] = 0xff; + respdata[3] = 0xff; + respdata[4] = 0xff; + respdata[5] = 0xff; + } else + resp = 0; + break; + + case LMP_FEATURES_REQ: + case LMP_FEATURES_RES: + /* data[0-7] Features + */ + if (length < 8) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + if (op == LMP_FEATURES_REQ) { + resp = LMP_FEATURES_RES; + resplen = 9; + respdata[1] = (bt->lmp_caps >> 0) & 0xff; + respdata[2] = (bt->lmp_caps >> 8) & 0xff; + respdata[3] = (bt->lmp_caps >> 16) & 0xff; + respdata[4] = (bt->lmp_caps >> 24) & 0xff; + respdata[5] = (bt->lmp_caps >> 32) & 0xff; + respdata[6] = (bt->lmp_caps >> 40) & 0xff; + respdata[7] = (bt->lmp_caps >> 48) & 0xff; + respdata[8] = (bt->lmp_caps >> 56) & 0xff; + } else + resp = 0; + break; + + case LMP_NAME_REQ: + /* data[0] Name offset + */ + if (length < 1) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + resp = LMP_NAME_RES; + resplen = 17; + respdata[1] = data[0]; + respdata[2] = strlen(bt->lmp_name); + memset(respdata + 3, 0x00, 14); + if (respdata[2] > respdata[1]) + memcpy(respdata + 3, bt->lmp_name + respdata[1], + respdata[2] - respdata[1]); + break; + + case LMP_NAME_RES: + /* data[0] Name offset + * data[1] Name length + * data[2-15] Name fragment + */ + if (length < 16) { + error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE; + goto not_accepted; + } + resp = 0; + break; + + default: + error = HCI_UNKNOWN_LMP_PDU; + /* Fall through */ + not_accepted: + if (op >> 8) { + resp = LMP_NOT_ACCEPTED_EXT; + resplen = 5; + respdata[0] = op >> 8; + respdata[1] = op & 0xff; + respdata[2] = error; + } else { + resp = LMP_NOT_ACCEPTED; + resplen = 3; + respdata[0] = op & 0xff; + respdata[1] = error; + } + } + + if (resp == 0) + return; + + if (resp >> 8) { + respdata[0] = resp >> 8; + respdata[1] = resp & 0xff; + } else + respdata[0] = resp & 0xff; + + respdata[0] <<= 1; + respdata[0] |= tr; +} + +void bt_submit_raw_acl(struct bt_piconet_s *net, int length, uint8_t *data) +{ + struct bt_device_s *slave; + if (length < 1) + return; + + slave = 0; +#if 0 + slave = net->slave; +#endif + + switch (data[0] & 3) { + case LLID_ACLC: + bt_submit_lmp(slave, length - 1, data + 1); + break; + case LLID_ACLU_START: +#if 0 + bt_sumbit_l2cap(slave, length - 1, data + 1, (data[0] >> 2) & 1); + breka; +#endif + default: + case LLID_ACLU_CONT: + break; + } +} + +/* HCI layer emulation */ + +/* Note: we could ignore endiannes because unswapped handles will still + * be valid as connection identifiers for the guest - they don't have to + * be continuously allocated. We do it though, to preserve similar + * behaviour between hosts. Some things, like the BD_ADDR cannot be + * preserved though (for example if a real hci is used). */ +#ifdef WORDS_BIGENDIAN +# define HNDL(raw) bswap16(raw) +#else +# define HNDL(raw) (raw) +#endif + +static const uint8_t bt_event_reserved_mask[8] = { + 0xff, 0x9f, 0xfb, 0xff, 0x07, 0x18, 0x00, 0x00, +}; + +static inline uint8_t *bt_hci_event_start(struct bt_hci_s *hci, + int evt, int len) +{ + uint8_t *packet, mask; + int mask_byte; + + if (len > 255) { + fprintf(stderr, "%s: HCI event params too long (%ib)\n", + __FUNCTION__, len); + exit(-1); + } + + mask_byte = (evt - 1) >> 3; + mask = 1 << ((evt - 1) & 3); + if (mask & bt_event_reserved_mask[mask_byte] & ~hci->event_mask[mask_byte]) + return 0; + + packet = hci->evt_packet(hci->opaque); + packet[0] = evt; + packet[1] = len; + + return &packet[2]; +} + +static inline void bt_hci_event(struct bt_hci_s *hci, int evt, + void *params, int len) +{ + uint8_t *packet = bt_hci_event_start(hci, evt, len); + + if (!packet) + return; + + if (len) + memcpy(packet, params, len); + + hci->evt_submit(hci->opaque, len + 2); +} + +static inline void bt_hci_event_status(struct bt_hci_s *hci, int status) +{ + evt_cmd_status params = { + .status = status, + .ncmd = 1, + .opcode = hci->last_cmd, + }; + + bt_hci_event(hci, EVT_CMD_STATUS, ¶ms, EVT_CMD_STATUS_SIZE); +} + +static inline void bt_hci_event_complete(struct bt_hci_s *hci, + void *ret, int len) +{ + uint8_t *packet = bt_hci_event_start(hci, EVT_CMD_COMPLETE, + len + EVT_CMD_COMPLETE_SIZE); + evt_cmd_complete *params = (evt_cmd_complete *) packet; + + if (!packet) + return; + + params->ncmd = 1; + params->opcode = hci->last_cmd; + if (len) + memcpy(&packet[EVT_CMD_COMPLETE_SIZE], ret, len); + + hci->evt_submit(hci->opaque, len + EVT_CMD_COMPLETE_SIZE + 2); +} + +static void bt_hci_inquiry_done(void *opaque) +{ + struct bt_hci_s *hci = (struct bt_hci_s *) opaque; + uint8_t status = HCI_SUCCESS; + + if (!hci->lm.periodic) + hci->lm.inquire = 0; + + /* The specification is inconsistent about this one. Page 565 reads + * "The event parameters of Inquiry Complete event will have a summary + * of the result from the Inquiry process, which reports the number of + * nearby Bluetooth devices that responded [so hci->responses].", but + * Event Parameters (see page 729) has only Status. */ + bt_hci_event(hci, EVT_INQUIRY_COMPLETE, &status, 1); +} + +static void bt_hci_inquiry_result_standard(struct bt_hci_s *hci, + struct bt_device_s *slave) +{ + inquiry_info params = { + .num_responses = 1, + .bdaddr = BAINIT(&slave->bd_addr), + .pscan_rep_mode = 0x00, /* R0 */ + .pscan_period_mode = 0x00, /* P0 - deprecated */ + .pscan_mode = 0x00, /* Standard scan - deprecated */ + .dev_class[0] = slave->class[0], + .dev_class[1] = slave->class[1], + .dev_class[2] = slave->class[2], + /* TODO: return the clkoff *differenece* */ + .clock_offset = slave->clkoff, /* Note: no swapping */ + }; + + bt_hci_event(hci, EVT_INQUIRY_RESULT, ¶ms, INQUIRY_INFO_SIZE); +} + +static void bt_hci_inquiry_result_with_rssi(struct bt_hci_s *hci, + struct bt_device_s *slave) +{ + inquiry_info_with_rssi params = { + .num_responses = 1, + .bdaddr = BAINIT(&slave->bd_addr), + .pscan_rep_mode = 0x00, /* R0 */ + .pscan_period_mode = 0x00, /* P0 - deprecated */ + .dev_class[0] = slave->class[0], + .dev_class[1] = slave->class[1], + .dev_class[2] = slave->class[2], + /* TODO: return the clkoff *differenece* */ + .clock_offset = slave->clkoff, /* Note: no swapping */ + .rssi = DEFAULT_RSSI_DBM, + }; + + bt_hci_event(hci, EVT_INQUIRY_RESULT_WITH_RSSI, + ¶ms, INQUIRY_INFO_WITH_RSSI_SIZE); +} + +static void bt_hci_inquiry_result(struct bt_hci_s *hci, + struct bt_device_s *slave) +{ + if (!slave->inquiry_scan || !hci->lm.responses_left) + return; + + hci->lm.responses_left --; + hci->lm.responses ++; + + switch (hci->lm.inquiry_mode) { + case 0x00: + return bt_hci_inquiry_result_standard(hci, slave); + case 0x01: + return bt_hci_inquiry_result_with_rssi(hci, slave); + default: + fprintf(stderr, "%s: bad inquiry mode %02x\n", __FUNCTION__, + hci->lm.inquiry_mode); + exit(-1); + } +} + +static void bt_hci_mod_timer_1280ms(QEMUTimer *timer, int period) +{ + qemu_mod_timer(timer, qemu_get_clock(vm_clock) + + muldiv64(period << 7, ticks_per_sec, 100)); +} + +static void bt_hci_inquiry_start(struct bt_hci_s *hci, int length) +{ + struct bt_device_s *slave; + + hci->lm.inquiry_length = length; + for (slave = hci->device.net->slave; slave; slave = slave->next) + /* Don't uncover ourselves. */ + if (slave != &hci->device) + bt_hci_inquiry_result(hci, slave); + + /* TODO: register for a callback on a new device's addition to the + * scatternet so that if it's added before inquiry_length expires, + * an Inquiry Result is generated immediately. Alternatively re-loop + * through the devices on the inquiry_length expiration and report + * devices not seen before. */ + if (hci->lm.responses_left) + bt_hci_mod_timer_1280ms(hci->lm.inquiry_done, hci->lm.inquiry_length); + else + bt_hci_inquiry_done(hci); + + if (hci->lm.periodic) + bt_hci_mod_timer_1280ms(hci->lm.inquiry_next, hci->lm.inquiry_period); +} + +static void bt_hci_inquiry_next(void *opaque) +{ + struct bt_hci_s *hci = (struct bt_hci_s *) opaque; + + hci->lm.responses_left += hci->lm.responses; + hci->lm.responses = 0; + bt_hci_inquiry_start(hci, hci->lm.inquiry_length); +} + +static inline int bt_hci_handle_bad(struct bt_hci_s *hci, uint16_t handle) +{ + return !(handle & HCI_HANDLE_OFFSET) || + handle >= (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX) || + !hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link; +} + +static inline int bt_hci_role_master(struct bt_hci_s *hci, uint16_t handle) +{ + return !!(hci->lm.role_bmp & (1 << (handle & ~HCI_HANDLE_OFFSET))); +} + +static inline struct bt_device_s *bt_hci_remote_dev(struct bt_hci_s *hci, + uint16_t handle) +{ + struct bt_link_s *link = hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link; + + return bt_hci_role_master(hci, handle) ? link->slave : link->host; +} + +static void bt_hci_mode_tick(void *opaque); +static void bt_hci_lmp_link_establish(struct bt_hci_s *hci, + struct bt_link_s *link, int master) +{ + hci->lm.handle[hci->lm.last_handle].link = link; + + if (master) { + /* We are the master side of an ACL link */ + hci->lm.role_bmp |= 1 << hci->lm.last_handle; + + hci->lm.handle[hci->lm.last_handle].lmp_acl_data = + link->slave->lmp_acl_data; + } else { + /* We are the slave side of an ACL link */ + hci->lm.role_bmp &= ~(1 << hci->lm.last_handle); + + hci->lm.handle[hci->lm.last_handle].lmp_acl_data = + link->host->lmp_acl_resp; + } + + /* Mode */ + if (master) { + link->acl_mode = acl_active; + hci->lm.handle[hci->lm.last_handle].acl_mode_timer = + qemu_new_timer(vm_clock, bt_hci_mode_tick, link); + } +} + +static void bt_hci_lmp_link_teardown(struct bt_hci_s *hci, uint16_t handle) +{ + handle &= ~HCI_HANDLE_OFFSET; + hci->lm.handle[handle].link = 0; + + if (bt_hci_role_master(hci, handle)) { + qemu_del_timer(hci->lm.handle[handle].acl_mode_timer); + qemu_free_timer(hci->lm.handle[handle].acl_mode_timer); + } +} + +static int bt_hci_connect(struct bt_hci_s *hci, bdaddr_t *bdaddr) +{ + struct bt_device_s *slave; + struct bt_link_s link; + + for (slave = hci->device.net->slave; slave; slave = slave->next) + if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr)) + break; + if (!slave || slave == &hci->device) + return -ENODEV; + + bacpy(&hci->lm.awaiting_bdaddr[hci->lm.connecting ++], &slave->bd_addr); + + link.slave = slave; + link.host = &hci->device; + link.slave->lmp_connection_request(&link); /* Always last */ + + return 0; +} + +static void bt_hci_connection_reject(struct bt_hci_s *hci, + struct bt_device_s *host, uint8_t because) +{ + struct bt_link_s link = { + .slave = &hci->device, + .host = host, + /* Rest uninitialised */ + }; + + host->reject_reason = because; + host->lmp_connection_complete(&link); +} + +static void bt_hci_connection_reject_event(struct bt_hci_s *hci, + bdaddr_t *bdaddr) +{ + evt_conn_complete params; + + params.status = HCI_NO_CONNECTION; + params.handle = 0; + bacpy(¶ms.bdaddr, bdaddr); + params.link_type = ACL_LINK; + params.encr_mode = 0x00; /* Encryption not required */ + bt_hci_event(hci, EVT_CONN_COMPLETE, ¶ms, EVT_CONN_COMPLETE_SIZE); +} + +static void bt_hci_connection_accept(struct bt_hci_s *hci, + struct bt_device_s *host) +{ + struct bt_hci_link_s *link = qemu_mallocz(sizeof(struct bt_hci_link_s)); + evt_conn_complete params; + uint16_t handle; + uint8_t status = HCI_SUCCESS; + int tries = HCI_HANDLES_MAX; + + /* Make a connection handle */ + do { + while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries) + hci->lm.last_handle &= HCI_HANDLES_MAX - 1; + handle = hci->lm.last_handle | HCI_HANDLE_OFFSET; + } while ((handle == hci->asb_handle || handle == hci->psb_handle) && + tries); + + if (!tries) { + qemu_free(link); + bt_hci_connection_reject(hci, host, HCI_REJECTED_LIMITED_RESOURCES); + status = HCI_NO_CONNECTION; + goto complete; + } + + link->btlink.slave = &hci->device; + link->btlink.host = host; + link->handle = handle; + + /* Link established */ + bt_hci_lmp_link_establish(hci, &link->btlink, 0); + +complete: + params.status = status; + params.handle = HNDL(handle); + bacpy(¶ms.bdaddr, &host->bd_addr); + params.link_type = ACL_LINK; + params.encr_mode = 0x00; /* Encryption not required */ + bt_hci_event(hci, EVT_CONN_COMPLETE, ¶ms, EVT_CONN_COMPLETE_SIZE); + + /* Neets to be done at the very end because it can trigger a (nested) + * disconnected, in case the other and had cancelled the request + * locally. */ + if (status == HCI_SUCCESS) { + host->reject_reason = 0; + host->lmp_connection_complete(&link->btlink); + } +} + +static void bt_hci_lmp_connection_request(struct bt_link_s *link) +{ + struct bt_hci_s *hci = hci_from_device(link->slave); + evt_conn_request params; + + if (hci->conn_req_host) + return bt_hci_connection_reject(hci, link->host, + HCI_REJECTED_LIMITED_RESOURCES); + hci->conn_req_host = link->host; + /* TODO: if masked and auto-accept, then auto-accept, + * if masked and not auto-accept, then auto-reject */ + /* TODO: kick the hci->conn_accept_timer, timeout after + * hci->conn_accept_tout * 0.625 msec */ + + bacpy(¶ms.bdaddr, &link->host->bd_addr); + memcpy(¶ms.dev_class, &link->host->class, sizeof(params.dev_class)); + params.link_type = ACL_LINK; + bt_hci_event(hci, EVT_CONN_REQUEST, ¶ms, EVT_CONN_REQUEST_SIZE); + return; +} + +static void bt_hci_conn_accept_timeout(void *opaque) +{ + struct bt_hci_s *hci = (struct bt_hci_s *) opaque; + + if (!hci->conn_req_host) + /* Already accepted or rejected. If the other end cancelled the + * connection request then we still have to reject or accept it + * and then we'll get a disconnect. */ + return; + + /* TODO */ +} + +/* Remove from the list of devices which we wanted to connect to and + * are awaiting a response from. If the callback sees a response from + * a device which is not on the list it will assume it's a connection + * that's been cancelled by the host in the meantime and immediately + * try to detach the link and send a Connection Complete. */ +static int bt_hci_lmp_connection_ready(struct bt_hci_s *hci, + bdaddr_t *bdaddr) +{ + int i; + + for (i = 0; i < hci->lm.connecting; i ++) + if (!bacmp(&hci->lm.awaiting_bdaddr[i], bdaddr)) { + if (i < -- hci->lm.connecting) + bacpy(&hci->lm.awaiting_bdaddr[i], + &hci->lm.awaiting_bdaddr[hci->lm.connecting]); + return 0; + } + + return 1; +} + +static void bt_hci_lmp_connection_complete(struct bt_link_s *link) +{ + struct bt_hci_s *hci = hci_from_device(link->host); + evt_conn_complete params; + uint16_t handle; + uint8_t status = HCI_SUCCESS; + int tries = HCI_HANDLES_MAX; + + if (bt_hci_lmp_connection_ready(hci, &link->slave->bd_addr)) { + if (!hci->device.reject_reason) + link->slave->lmp_disconnect_slave(link); + handle = 0; + status = HCI_NO_CONNECTION; + goto complete; + } + + if (hci->device.reject_reason) { + handle = 0; + status = hci->device.reject_reason; + goto complete; + } + + /* Make a connection handle */ + do { + while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries) + hci->lm.last_handle &= HCI_HANDLES_MAX - 1; + handle = hci->lm.last_handle | HCI_HANDLE_OFFSET; + } while ((handle == hci->asb_handle || handle == hci->psb_handle) && + tries); + + if (!tries) { + link->slave->lmp_disconnect_slave(link); + status = HCI_NO_CONNECTION; + goto complete; + } + + /* Link established */ + link->handle = handle; + bt_hci_lmp_link_establish(hci, link, 1); + +complete: + params.status = status; + params.handle = HNDL(handle); + params.link_type = ACL_LINK; + bacpy(¶ms.bdaddr, &link->slave->bd_addr); + params.encr_mode = 0x00; /* Encryption not required */ + bt_hci_event(hci, EVT_CONN_COMPLETE, ¶ms, EVT_CONN_COMPLETE_SIZE); +} + +static void bt_hci_disconnect(struct bt_hci_s *hci, + uint16_t handle, int reason) +{ + struct bt_link_s *btlink = + hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link; + struct bt_hci_link_s *link; + evt_disconn_complete params; + + if (bt_hci_role_master(hci, handle)) { + btlink->slave->reject_reason = reason; + btlink->slave->lmp_disconnect_slave(btlink); + /* The link pointer is invalid from now on */ + + goto complete; + } + + btlink->host->reject_reason = reason; + btlink->host->lmp_disconnect_master(btlink); + + /* We are the slave, we get to clean this burden */ + link = (struct bt_hci_link_s *) btlink; + qemu_free(link); + +complete: + bt_hci_lmp_link_teardown(hci, handle); + + params.status = HCI_SUCCESS; + params.handle = HNDL(handle); + params.reason = HCI_CONNECTION_TERMINATED; + bt_hci_event(hci, EVT_DISCONN_COMPLETE, + ¶ms, EVT_DISCONN_COMPLETE_SIZE); +} + +/* TODO: use only one function */ +static void bt_hci_lmp_disconnect_host(struct bt_link_s *link) +{ + struct bt_hci_s *hci = hci_from_device(link->host); + uint16_t handle = link->handle; + evt_disconn_complete params; + + bt_hci_lmp_link_teardown(hci, handle); + + params.status = HCI_SUCCESS; + params.handle = HNDL(handle); + params.reason = hci->device.reject_reason; + bt_hci_event(hci, EVT_DISCONN_COMPLETE, + ¶ms, EVT_DISCONN_COMPLETE_SIZE); +} + +static void bt_hci_lmp_disconnect_slave(struct bt_link_s *btlink) +{ + struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink; + struct bt_hci_s *hci = hci_from_device(btlink->slave); + uint16_t handle = link->handle; + evt_disconn_complete params; + + qemu_free(link); + + bt_hci_lmp_link_teardown(hci, handle); + + params.status = HCI_SUCCESS; + params.handle = HNDL(handle); + params.reason = hci->device.reject_reason; + bt_hci_event(hci, EVT_DISCONN_COMPLETE, + ¶ms, EVT_DISCONN_COMPLETE_SIZE); +} + +static int bt_hci_name_req(struct bt_hci_s *hci, bdaddr_t *bdaddr) +{ + struct bt_device_s *slave; + evt_remote_name_req_complete params; + int len; + + for (slave = hci->device.net->slave; slave; slave = slave->next) + if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr)) + break; + if (!slave) + return -ENODEV; + + bt_hci_event_status(hci, HCI_SUCCESS); + + params.status = HCI_SUCCESS; + bacpy(¶ms.bdaddr, &slave->bd_addr); + len = snprintf(params.name, sizeof(params.name), + "%s", slave->lmp_name ?: ""); + memset(params.name + len, 0, sizeof(params.name) - len); + bt_hci_event(hci, EVT_REMOTE_NAME_REQ_COMPLETE, + ¶ms, EVT_REMOTE_NAME_REQ_COMPLETE_SIZE); + + return 0; +} + +static int bt_hci_features_req(struct bt_hci_s *hci, uint16_t handle) +{ + struct bt_device_s *slave; + evt_read_remote_features_complete params; + + if (bt_hci_handle_bad(hci, handle)) + return -ENODEV; + + slave = bt_hci_remote_dev(hci, handle); + + bt_hci_event_status(hci, HCI_SUCCESS); + + params.status = HCI_SUCCESS; + params.handle = HNDL(handle); + params.features[0] = (slave->lmp_caps >> 0) & 0xff; + params.features[1] = (slave->lmp_caps >> 8) & 0xff; + params.features[2] = (slave->lmp_caps >> 16) & 0xff; + params.features[3] = (slave->lmp_caps >> 24) & 0xff; + params.features[4] = (slave->lmp_caps >> 32) & 0xff; + params.features[5] = (slave->lmp_caps >> 40) & 0xff; + params.features[6] = (slave->lmp_caps >> 48) & 0xff; + params.features[7] = (slave->lmp_caps >> 56) & 0xff; + bt_hci_event(hci, EVT_READ_REMOTE_FEATURES_COMPLETE, + ¶ms, EVT_READ_REMOTE_FEATURES_COMPLETE_SIZE); + + return 0; +} + +static int bt_hci_version_req(struct bt_hci_s *hci, uint16_t handle) +{ + struct bt_device_s *slave; + evt_read_remote_version_complete params; + + if (bt_hci_handle_bad(hci, handle)) + return -ENODEV; + + slave = bt_hci_remote_dev(hci, handle); + + bt_hci_event_status(hci, HCI_SUCCESS); + + params.status = HCI_SUCCESS; + params.handle = HNDL(handle); + params.lmp_ver = 0x03; + params.manufacturer = cpu_to_le16(0xa000); + params.lmp_subver = cpu_to_le16(0xa607); + bt_hci_event(hci, EVT_READ_REMOTE_VERSION_COMPLETE, + ¶ms, EVT_READ_REMOTE_VERSION_COMPLETE_SIZE); + + return 0; +} + +static int bt_hci_clkoffset_req(struct bt_hci_s *hci, uint16_t handle) +{ + struct bt_device_s *slave; + evt_read_clock_offset_complete params; + + if (bt_hci_handle_bad(hci, handle)) + return -ENODEV; + + slave = bt_hci_remote_dev(hci, handle); + + bt_hci_event_status(hci, HCI_SUCCESS); + + params.status = HCI_SUCCESS; + params.handle = HNDL(handle); + /* TODO: return the clkoff *differenece* */ + params.clock_offset = slave->clkoff; /* Note: no swapping */ + bt_hci_event(hci, EVT_READ_CLOCK_OFFSET_COMPLETE, + ¶ms, EVT_READ_CLOCK_OFFSET_COMPLETE_SIZE); + + return 0; +} + +static void bt_hci_event_mode(struct bt_hci_s *hci, struct bt_link_s *link, + uint16_t handle) +{ + evt_mode_change params = { + .status = HCI_SUCCESS, + .handle = HNDL(handle), + .mode = link->acl_mode, + .interval = cpu_to_le16(link->acl_interval), + }; + + bt_hci_event(hci, EVT_MODE_CHANGE, ¶ms, EVT_MODE_CHANGE_SIZE); +} + +static void bt_hci_lmp_mode_change_master(struct bt_hci_s *hci, + struct bt_link_s *link, int mode, uint16_t interval) +{ + link->acl_mode = mode; + link->acl_interval = interval; + + bt_hci_event_mode(hci, link, link->handle); + + link->slave->lmp_mode_change(link); +} + +static void bt_hci_lmp_mode_change_slave(struct bt_link_s *btlink) +{ + struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink; + struct bt_hci_s *hci = hci_from_device(btlink->slave); + + bt_hci_event_mode(hci, btlink, link->handle); +} + +static int bt_hci_mode_change(struct bt_hci_s *hci, uint16_t handle, + int interval, int mode) +{ + struct bt_hci_master_link_s *link; + + if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle)) + return -ENODEV; + + link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET]; + if (link->link->acl_mode != acl_active) { + bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED); + return 0; + } + + bt_hci_event_status(hci, HCI_SUCCESS); + + qemu_mod_timer(link->acl_mode_timer, qemu_get_clock(vm_clock) + + muldiv64(interval * 625, ticks_per_sec, 1000000)); + bt_hci_lmp_mode_change_master(hci, link->link, mode, interval); + + return 0; +} + +static int bt_hci_mode_cancel(struct bt_hci_s *hci, uint16_t handle, int mode) +{ + struct bt_hci_master_link_s *link; + + if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle)) + return -ENODEV; + + link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET]; + if (link->link->acl_mode != mode) { + bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED); + + return 0; + } + + bt_hci_event_status(hci, HCI_SUCCESS); + + qemu_del_timer(link->acl_mode_timer); + bt_hci_lmp_mode_change_master(hci, link->link, acl_active, 0); + + return 0; +} + +static void bt_hci_mode_tick(void *opaque) +{ + struct bt_link_s *link = opaque; + struct bt_hci_s *hci = hci_from_device(link->host); + + bt_hci_lmp_mode_change_master(hci, link, acl_active, 0); +} + +void bt_hci_reset(struct bt_hci_s *hci) +{ + hci->acl_len = 0; + hci->last_cmd = 0; + hci->lm.connecting = 0; + + hci->event_mask[0] = 0xff; + hci->event_mask[1] = 0xff; + hci->event_mask[2] = 0xff; + hci->event_mask[3] = 0xff; + hci->event_mask[4] = 0xff; + hci->event_mask[5] = 0x1f; + hci->event_mask[6] = 0x00; + hci->event_mask[7] = 0x00; + hci->device.inquiry_scan = 0; + hci->device.page_scan = 0; + if (hci->device.lmp_name) + free((void *) hci->device.lmp_name); + hci->device.lmp_name = 0; + hci->device.class[0] = 0x00; + hci->device.class[1] = 0x00; + hci->device.class[2] = 0x00; + hci->voice_setting = 0x0000; + hci->conn_accept_tout = 0x1f40; + hci->lm.inquiry_mode = 0x00; + + hci->psb_handle = 0x000; + hci->asb_handle = 0x000; + + /* XXX: qemu_del_timer(sl->acl_mode_timer); for all links */ + qemu_del_timer(hci->lm.inquiry_done); + qemu_del_timer(hci->lm.inquiry_next); + qemu_del_timer(hci->conn_accept_timer); +} + +static void bt_hci_read_local_version_rp(struct bt_hci_s *hci) +{ + read_local_version_rp lv = { + .status = HCI_SUCCESS, + .hci_ver = 0x03, + .hci_rev = cpu_to_le16(0xa607), + .lmp_ver = 0x03, + .manufacturer = cpu_to_le16(0xa000), + .lmp_subver = cpu_to_le16(0xa607), + }; + + bt_hci_event_complete(hci, &lv, READ_LOCAL_VERSION_RP_SIZE); +} + +static void bt_hci_read_local_commands_rp(struct bt_hci_s *hci) +{ + read_local_commands_rp lc = { + .status = HCI_SUCCESS, + .commands = { + /* Keep updated! */ + /* Also, keep in sync with hci->device.lmp_caps in bt_new_hci */ + 0xbf, 0x80, 0xf9, 0x03, 0xb2, 0xc0, 0x03, 0xc3, + 0x00, 0x0f, 0x80, 0x00, 0xc0, 0x00, 0xe8, 0x13, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }, + }; + + bt_hci_event_complete(hci, &lc, READ_LOCAL_COMMANDS_RP_SIZE); +} + +static void bt_hci_read_local_features_rp(struct bt_hci_s *hci) +{ + read_local_features_rp lf = { + .status = HCI_SUCCESS, + .features = { + (hci->device.lmp_caps >> 0) & 0xff, + (hci->device.lmp_caps >> 8) & 0xff, + (hci->device.lmp_caps >> 16) & 0xff, + (hci->device.lmp_caps >> 24) & 0xff, + (hci->device.lmp_caps >> 32) & 0xff, + (hci->device.lmp_caps >> 40) & 0xff, + (hci->device.lmp_caps >> 48) & 0xff, + (hci->device.lmp_caps >> 56) & 0xff, + }, + }; + + bt_hci_event_complete(hci, &lf, READ_LOCAL_FEATURES_RP_SIZE); +} + +static void bt_hci_read_local_ext_features_rp(struct bt_hci_s *hci, int page) +{ + read_local_ext_features_rp lef = { + .status = HCI_SUCCESS, + .page_num = page, + .max_page_num = 0x00, + .features = { + /* Keep updated! */ + 0x5f, 0x35, 0x85, 0x7e, 0x9b, 0x19, 0x00, 0x80, + }, + }; + if (page) + memset(lef.features, 0, sizeof(lef.features)); + + bt_hci_event_complete(hci, &lef, READ_LOCAL_EXT_FEATURES_RP_SIZE); +} + +static void bt_hci_read_buffer_size_rp(struct bt_hci_s *hci) +{ + read_buffer_size_rp bs = { + /* This can be made configurable, for one standard USB dongle HCI + * the four values are cpu_to_le16(0x0180), 0x40, + * cpu_to_le16(0x0008), cpu_to_le16(0x0008). */ + .status = HCI_SUCCESS, + .acl_mtu = cpu_to_le16(0x0200), + .sco_mtu = 0, + .acl_max_pkt = cpu_to_le16(0x0001), + .sco_max_pkt = cpu_to_le16(0x0000), + }; + + bt_hci_event_complete(hci, &bs, READ_BUFFER_SIZE_RP_SIZE); +} + +/* Deprecated in V2.0 (page 661) */ +static void bt_hci_read_country_code_rp(struct bt_hci_s *hci) +{ + read_country_code_rp cc ={ + .status = HCI_SUCCESS, + .country_code = 0x00, /* North America & Europe^1 and Japan */ + }; + + bt_hci_event_complete(hci, &cc, READ_COUNTRY_CODE_RP_SIZE); + + /* ^1. Except France, sorry */ +} + +static void bt_hci_read_bd_addr_rp(struct bt_hci_s *hci) +{ + read_bd_addr_rp ba = { + .status = HCI_SUCCESS, + .bdaddr = BAINIT(&hci->device.bd_addr), + }; + + bt_hci_event_complete(hci, &ba, READ_BD_ADDR_RP_SIZE); +} + +static int bt_hci_link_quality_rp(struct bt_hci_s *hci, uint16_t handle) +{ + read_link_quality_rp lq = { + .status = HCI_SUCCESS, + .handle = HNDL(handle), + .link_quality = 0xff, + }; + + if (bt_hci_handle_bad(hci, handle)) + lq.status = HCI_NO_CONNECTION; + + bt_hci_event_complete(hci, &lq, READ_LINK_QUALITY_RP_SIZE); + return 0; +} + +/* Generate a Command Complete event with only the Status parameter */ +static inline void bt_hci_event_complete_status(struct bt_hci_s *hci, + uint8_t status) +{ + bt_hci_event_complete(hci, &status, 1); +} + +static inline void bt_hci_event_complete_conn_cancel(struct bt_hci_s *hci, + uint8_t status, bdaddr_t *bd_addr) +{ + create_conn_cancel_rp params = { + .status = status, + .bdaddr = BAINIT(bd_addr), + }; + + bt_hci_event_complete(hci, ¶ms, CREATE_CONN_CANCEL_RP_SIZE); +} + +static inline void bt_hci_event_auth_complete(struct bt_hci_s *hci, + uint16_t handle) +{ + evt_auth_complete params = { + .status = HCI_SUCCESS, + .handle = HNDL(handle), + }; + + bt_hci_event(hci, EVT_AUTH_COMPLETE, ¶ms, EVT_AUTH_COMPLETE_SIZE); +} + +static inline void bt_hci_event_encrypt_change(struct bt_hci_s *hci, + uint16_t handle, uint8_t mode) +{ + evt_encrypt_change params = { + .status = HCI_SUCCESS, + .handle = HNDL(handle), + .encrypt = mode, + }; + + bt_hci_event(hci, EVT_ENCRYPT_CHANGE, ¶ms, EVT_ENCRYPT_CHANGE_SIZE); +} + +static inline void bt_hci_event_complete_name_cancel(struct bt_hci_s *hci, + bdaddr_t *bd_addr) +{ + remote_name_req_cancel_rp params = { + .status = HCI_INVALID_PARAMETERS, + .bdaddr = BAINIT(bd_addr), + }; + + bt_hci_event_complete(hci, ¶ms, REMOTE_NAME_REQ_CANCEL_RP_SIZE); +} + +static inline void bt_hci_event_read_remote_ext_features(struct bt_hci_s *hci, + uint16_t handle) +{ + evt_read_remote_ext_features_complete params = { + .status = HCI_UNSUPPORTED_FEATURE, + .handle = HNDL(handle), + /* Rest uninitialised */ + }; + + bt_hci_event(hci, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE, + ¶ms, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE_SIZE); +} + +static inline void bt_hci_event_complete_lmp_handle(struct bt_hci_s *hci, + uint16_t handle) +{ + read_lmp_handle_rp params = { + .status = HCI_NO_CONNECTION, + .handle = HNDL(handle), + .reserved = 0, + /* Rest uninitialised */ + }; + + bt_hci_event_complete(hci, ¶ms, READ_LMP_HANDLE_RP_SIZE); +} + +static inline void bt_hci_event_complete_role_discovery(struct bt_hci_s *hci, + int status, uint16_t handle, int master) +{ + role_discovery_rp params = { + .status = status, + .handle = HNDL(handle), + .role = master ? 0x00 : 0x01, + }; + + bt_hci_event_complete(hci, ¶ms, ROLE_DISCOVERY_RP_SIZE); +} + +static inline void bt_hci_event_complete_flush(struct bt_hci_s *hci, + int status, uint16_t handle) +{ + flush_rp params = { + .status = status, + .handle = HNDL(handle), + }; + + bt_hci_event_complete(hci, ¶ms, FLUSH_RP_SIZE); +} + +static inline void bt_hci_event_complete_read_local_name(struct bt_hci_s *hci) +{ + read_local_name_rp params; + params.status = HCI_SUCCESS; + memset(params.name, 0, sizeof(params.name)); + if (hci->device.lmp_name) + strncpy(params.name, hci->device.lmp_name, sizeof(params.name)); + + bt_hci_event_complete(hci, ¶ms, READ_LOCAL_NAME_RP_SIZE); +} + +static inline void bt_hci_event_complete_read_conn_accept_timeout( + struct bt_hci_s *hci) +{ + read_conn_accept_timeout_rp params = { + .status = HCI_SUCCESS, + .timeout = cpu_to_le16(hci->conn_accept_tout), + }; + + bt_hci_event_complete(hci, ¶ms, READ_CONN_ACCEPT_TIMEOUT_RP_SIZE); +} + +static inline void bt_hci_event_complete_read_scan_enable(struct bt_hci_s *hci) +{ + read_scan_enable_rp params = { + .status = HCI_SUCCESS, + .enable = + (hci->device.inquiry_scan ? SCAN_INQUIRY : 0) | + (hci->device.page_scan ? SCAN_PAGE : 0), + }; + + bt_hci_event_complete(hci, ¶ms, READ_SCAN_ENABLE_RP_SIZE); +} + +static inline void bt_hci_event_complete_read_local_class(struct bt_hci_s *hci) +{ + read_class_of_dev_rp params; + + params.status = HCI_SUCCESS; + memcpy(params.dev_class, hci->device.class, sizeof(params.dev_class)); + + bt_hci_event_complete(hci, ¶ms, READ_CLASS_OF_DEV_RP_SIZE); +} + +static inline void bt_hci_event_complete_voice_setting(struct bt_hci_s *hci) +{ + read_voice_setting_rp params = { + .status = HCI_SUCCESS, + .voice_setting = hci->voice_setting, /* Note: no swapping */ + }; + + bt_hci_event_complete(hci, ¶ms, READ_VOICE_SETTING_RP_SIZE); +} + +static inline void bt_hci_event_complete_read_inquiry_mode( + struct bt_hci_s *hci) +{ + read_inquiry_mode_rp params = { + .status = HCI_SUCCESS, + .mode = hci->lm.inquiry_mode, + }; + + bt_hci_event_complete(hci, ¶ms, READ_INQUIRY_MODE_RP_SIZE); +} + +static inline void bt_hci_event_num_comp_pkts(struct bt_hci_s *hci, + uint16_t handle, int packets) +{ + uint16_t buf[EVT_NUM_COMP_PKTS_SIZE(1) / 2 + 1]; + evt_num_comp_pkts *params = (void *) ((uint8_t *) buf + 1); + + params->num_hndl = 1; + params->connection->handle = HNDL(handle); + params->connection->num_packets = cpu_to_le16(packets); + + bt_hci_event(hci, EVT_NUM_COMP_PKTS, params, EVT_NUM_COMP_PKTS_SIZE(1)); +} + +static void bt_submit_hci(struct HCIInfo *info, + const uint8_t *data, int length) +{ + struct bt_hci_s *hci = hci_from_info(info); + uint16_t cmd; + int paramlen, i; + + if (length < HCI_COMMAND_HDR_SIZE) + goto short_hci; + + memcpy(&hci->last_cmd, data, 2); + + cmd = (data[1] << 8) | data[0]; + paramlen = data[2]; + if (cmd_opcode_ogf(cmd) == 0 || cmd_opcode_ocf(cmd) == 0) /* NOP */ + return; + + data += HCI_COMMAND_HDR_SIZE; + length -= HCI_COMMAND_HDR_SIZE; + + if (paramlen > length) + return; + +#define PARAM(cmd, param) (((cmd##_cp *) data)->param) +#define PARAM16(cmd, param) le16_to_cpup(&PARAM(cmd, param)) +#define PARAMHANDLE(cmd) HNDL(PARAM(cmd, handle)) +#define LENGTH_CHECK(cmd) if (length < sizeof(cmd##_cp)) goto short_hci + /* Note: the supported commands bitmask in bt_hci_read_local_commands_rp + * needs to be updated every time a command is implemented here! */ + switch (cmd) { + case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY): + LENGTH_CHECK(inquiry); + + if (PARAM(inquiry, length) < 1) { + bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + hci->lm.inquire = 1; + hci->lm.periodic = 0; + hci->lm.responses_left = PARAM(inquiry, num_rsp) ?: INT_MAX; + hci->lm.responses = 0; + bt_hci_event_status(hci, HCI_SUCCESS); + bt_hci_inquiry_start(hci, PARAM(inquiry, length)); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY_CANCEL): + if (!hci->lm.inquire || hci->lm.periodic) { + fprintf(stderr, "%s: Inquiry Cancel should only be issued after " + "the Inquiry command has been issued, a Command " + "Status event has been received for the Inquiry " + "command, and before the Inquiry Complete event " + "occurs", __FUNCTION__); + bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED); + break; + } + + hci->lm.inquire = 0; + qemu_del_timer(hci->lm.inquiry_done); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_PERIODIC_INQUIRY): + LENGTH_CHECK(periodic_inquiry); + + if (!(PARAM(periodic_inquiry, length) < + PARAM16(periodic_inquiry, min_period) && + PARAM16(periodic_inquiry, min_period) < + PARAM16(periodic_inquiry, max_period)) || + PARAM(periodic_inquiry, length) < 1 || + PARAM16(periodic_inquiry, min_period) < 2 || + PARAM16(periodic_inquiry, max_period) < 3) { + bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + hci->lm.inquire = 1; + hci->lm.periodic = 1; + hci->lm.responses_left = PARAM(periodic_inquiry, num_rsp); + hci->lm.responses = 0; + hci->lm.inquiry_period = PARAM16(periodic_inquiry, max_period); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + bt_hci_inquiry_start(hci, PARAM(periodic_inquiry, length)); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_EXIT_PERIODIC_INQUIRY): + if (!hci->lm.inquire || !hci->lm.periodic) { + fprintf(stderr, "%s: Inquiry Cancel should only be issued after " + "the Inquiry command has been issued, a Command " + "Status event has been received for the Inquiry " + "command, and before the Inquiry Complete event " + "occurs", __FUNCTION__); + bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED); + break; + } + hci->lm.inquire = 0; + qemu_del_timer(hci->lm.inquiry_done); + qemu_del_timer(hci->lm.inquiry_next); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN): + LENGTH_CHECK(create_conn); + + if (hci->lm.connecting >= HCI_HANDLES_MAX) { + bt_hci_event_status(hci, HCI_REJECTED_LIMITED_RESOURCES); + break; + } + bt_hci_event_status(hci, HCI_SUCCESS); + + if (bt_hci_connect(hci, &PARAM(create_conn, bdaddr))) + bt_hci_connection_reject_event(hci, &PARAM(create_conn, bdaddr)); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_DISCONNECT): + LENGTH_CHECK(disconnect); + + if (bt_hci_handle_bad(hci, PARAMHANDLE(disconnect))) { + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + } + + bt_hci_event_status(hci, HCI_SUCCESS); + bt_hci_disconnect(hci, PARAMHANDLE(disconnect), + PARAM(disconnect, reason)); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN_CANCEL): + LENGTH_CHECK(create_conn_cancel); + + if (bt_hci_lmp_connection_ready(hci, + &PARAM(create_conn_cancel, bdaddr))) { + for (i = 0; i < HCI_HANDLES_MAX; i ++) + if (bt_hci_role_master(hci, i) && hci->lm.handle[i].link && + !bacmp(&hci->lm.handle[i].link->slave->bd_addr, + &PARAM(create_conn_cancel, bdaddr))) + break; + + bt_hci_event_complete_conn_cancel(hci, i < HCI_HANDLES_MAX ? + HCI_ACL_CONNECTION_EXISTS : HCI_NO_CONNECTION, + &PARAM(create_conn_cancel, bdaddr)); + } else + bt_hci_event_complete_conn_cancel(hci, HCI_SUCCESS, + &PARAM(create_conn_cancel, bdaddr)); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ): + LENGTH_CHECK(accept_conn_req); + + if (!hci->conn_req_host || + bacmp(&PARAM(accept_conn_req, bdaddr), + &hci->conn_req_host->bd_addr)) { + bt_hci_event_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + bt_hci_event_status(hci, HCI_SUCCESS); + bt_hci_connection_accept(hci, hci->conn_req_host); + hci->conn_req_host = 0; + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_REJECT_CONN_REQ): + LENGTH_CHECK(reject_conn_req); + + if (!hci->conn_req_host || + bacmp(&PARAM(reject_conn_req, bdaddr), + &hci->conn_req_host->bd_addr)) { + bt_hci_event_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + bt_hci_event_status(hci, HCI_SUCCESS); + bt_hci_connection_reject(hci, hci->conn_req_host, + PARAM(reject_conn_req, reason)); + bt_hci_connection_reject_event(hci, &hci->conn_req_host->bd_addr); + hci->conn_req_host = 0; + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_AUTH_REQUESTED): + LENGTH_CHECK(auth_requested); + + if (bt_hci_handle_bad(hci, PARAMHANDLE(auth_requested))) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + else { + bt_hci_event_status(hci, HCI_SUCCESS); + bt_hci_event_auth_complete(hci, PARAMHANDLE(auth_requested)); + } + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_SET_CONN_ENCRYPT): + LENGTH_CHECK(set_conn_encrypt); + + if (bt_hci_handle_bad(hci, PARAMHANDLE(set_conn_encrypt))) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + else { + bt_hci_event_status(hci, HCI_SUCCESS); + bt_hci_event_encrypt_change(hci, + PARAMHANDLE(set_conn_encrypt), + PARAM(set_conn_encrypt, encrypt)); + } + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ): + LENGTH_CHECK(remote_name_req); + + if (bt_hci_name_req(hci, &PARAM(remote_name_req, bdaddr))) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ_CANCEL): + LENGTH_CHECK(remote_name_req_cancel); + + bt_hci_event_complete_name_cancel(hci, + &PARAM(remote_name_req_cancel, bdaddr)); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_FEATURES): + LENGTH_CHECK(read_remote_features); + + if (bt_hci_features_req(hci, PARAMHANDLE(read_remote_features))) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_EXT_FEATURES): + LENGTH_CHECK(read_remote_ext_features); + + if (bt_hci_handle_bad(hci, PARAMHANDLE(read_remote_ext_features))) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + else { + bt_hci_event_status(hci, HCI_SUCCESS); + bt_hci_event_read_remote_ext_features(hci, + PARAMHANDLE(read_remote_ext_features)); + } + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_VERSION): + LENGTH_CHECK(read_remote_version); + + if (bt_hci_version_req(hci, PARAMHANDLE(read_remote_version))) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_CLOCK_OFFSET): + LENGTH_CHECK(read_clock_offset); + + if (bt_hci_clkoffset_req(hci, PARAMHANDLE(read_clock_offset))) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + + case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_LMP_HANDLE): + LENGTH_CHECK(read_lmp_handle); + + /* TODO: */ + bt_hci_event_complete_lmp_handle(hci, PARAMHANDLE(read_lmp_handle)); + break; + + case cmd_opcode_pack(OGF_LINK_POLICY, OCF_HOLD_MODE): + LENGTH_CHECK(hold_mode); + + if (PARAM16(hold_mode, min_interval) > + PARAM16(hold_mode, max_interval) || + PARAM16(hold_mode, min_interval) < 0x0002 || + PARAM16(hold_mode, max_interval) > 0xff00 || + (PARAM16(hold_mode, min_interval) & 1) || + (PARAM16(hold_mode, max_interval) & 1)) { + bt_hci_event_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + if (bt_hci_mode_change(hci, PARAMHANDLE(hold_mode), + PARAM16(hold_mode, max_interval), + acl_hold)) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + + case cmd_opcode_pack(OGF_LINK_POLICY, OCF_PARK_MODE): + LENGTH_CHECK(park_mode); + + if (PARAM16(park_mode, min_interval) > + PARAM16(park_mode, max_interval) || + PARAM16(park_mode, min_interval) < 0x000e || + (PARAM16(park_mode, min_interval) & 1) || + (PARAM16(park_mode, max_interval) & 1)) { + bt_hci_event_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + if (bt_hci_mode_change(hci, PARAMHANDLE(park_mode), + PARAM16(park_mode, max_interval), + acl_parked)) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + + case cmd_opcode_pack(OGF_LINK_POLICY, OCF_EXIT_PARK_MODE): + LENGTH_CHECK(exit_park_mode); + + if (bt_hci_mode_cancel(hci, PARAMHANDLE(exit_park_mode), + acl_parked)) + bt_hci_event_status(hci, HCI_NO_CONNECTION); + break; + + case cmd_opcode_pack(OGF_LINK_POLICY, OCF_ROLE_DISCOVERY): + LENGTH_CHECK(role_discovery); + + if (bt_hci_handle_bad(hci, PARAMHANDLE(role_discovery))) + bt_hci_event_complete_role_discovery(hci, + HCI_NO_CONNECTION, PARAMHANDLE(role_discovery), 0); + else + bt_hci_event_complete_role_discovery(hci, + HCI_SUCCESS, PARAMHANDLE(role_discovery), + bt_hci_role_master(hci, + PARAMHANDLE(role_discovery))); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_MASK): + LENGTH_CHECK(set_event_mask); + + memcpy(hci->event_mask, PARAM(set_event_mask, mask), 8); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_RESET): + bt_hci_reset(hci); + bt_hci_event_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_FLT): + if (length >= 1 && PARAM(set_event_flt, flt_type) == FLT_CLEAR_ALL) + /* No length check */; + else + LENGTH_CHECK(set_event_flt); + + /* Filters are not implemented */ + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_FLUSH): + LENGTH_CHECK(flush); + + if (bt_hci_handle_bad(hci, PARAMHANDLE(flush))) + bt_hci_event_complete_flush(hci, + HCI_NO_CONNECTION, PARAMHANDLE(flush)); + else { + /* TODO: ordering? */ + bt_hci_event(hci, EVT_FLUSH_OCCURRED, + &PARAM(flush, handle), + EVT_FLUSH_OCCURRED_SIZE); + bt_hci_event_complete_flush(hci, + HCI_SUCCESS, PARAMHANDLE(flush)); + } + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_CHANGE_LOCAL_NAME): + LENGTH_CHECK(change_local_name); + + if (hci->device.lmp_name) + free((void *) hci->device.lmp_name); + hci->device.lmp_name = strndup(PARAM(change_local_name, name), + sizeof(PARAM(change_local_name, name))); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_LOCAL_NAME): + bt_hci_event_complete_read_local_name(hci); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CONN_ACCEPT_TIMEOUT): + bt_hci_event_complete_read_conn_accept_timeout(hci); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CONN_ACCEPT_TIMEOUT): + /* TODO */ + LENGTH_CHECK(write_conn_accept_timeout); + + if (PARAM16(write_conn_accept_timeout, timeout) < 0x0001 || + PARAM16(write_conn_accept_timeout, timeout) > 0xb540) { + bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + hci->conn_accept_tout = PARAM16(write_conn_accept_timeout, timeout); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_SCAN_ENABLE): + bt_hci_event_complete_read_scan_enable(hci); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE): + LENGTH_CHECK(write_scan_enable); + + /* TODO: check that the remaining bits are all 0 */ + hci->device.inquiry_scan = + !!(PARAM(write_scan_enable, scan_enable) & SCAN_INQUIRY); + hci->device.page_scan = + !!(PARAM(write_scan_enable, scan_enable) & SCAN_PAGE); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CLASS_OF_DEV): + bt_hci_event_complete_read_local_class(hci); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CLASS_OF_DEV): + LENGTH_CHECK(write_class_of_dev); + + memcpy(hci->device.class, PARAM(write_class_of_dev, dev_class), + sizeof(PARAM(write_class_of_dev, dev_class))); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_VOICE_SETTING): + bt_hci_event_complete_voice_setting(hci); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING): + LENGTH_CHECK(write_voice_setting); + + hci->voice_setting = PARAM(write_voice_setting, voice_setting); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_HOST_NUMBER_OF_COMPLETED_PACKETS): + if (length < data[0] * 2 + 1) + goto short_hci; + + for (i = 0; i < data[0]; i ++) + if (bt_hci_handle_bad(hci, + data[i * 2 + 1] | (data[i * 2 + 2] << 8))) + bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_INQUIRY_MODE): + /* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x40) + * else + * goto unknown_command */ + bt_hci_event_complete_read_inquiry_mode(hci); + break; + + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_INQUIRY_MODE): + /* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x80) + * else + * goto unknown_command */ + LENGTH_CHECK(write_inquiry_mode); + + if (PARAM(write_inquiry_mode, mode) > 0x01) { + bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS); + break; + } + + hci->lm.inquiry_mode = PARAM(write_inquiry_mode, mode); + bt_hci_event_complete_status(hci, HCI_SUCCESS); + break; + + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_VERSION): + bt_hci_read_local_version_rp(hci); + break; + + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_COMMANDS): + bt_hci_read_local_commands_rp(hci); + break; + + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_FEATURES): + bt_hci_read_local_features_rp(hci); + break; + + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_EXT_FEATURES): + LENGTH_CHECK(read_local_ext_features); + + bt_hci_read_local_ext_features_rp(hci, + PARAM(read_local_ext_features, page_num)); + break; + + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BUFFER_SIZE): + bt_hci_read_buffer_size_rp(hci); + break; + + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_COUNTRY_CODE): + bt_hci_read_country_code_rp(hci); + break; + + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BD_ADDR): + bt_hci_read_bd_addr_rp(hci); + break; + + case cmd_opcode_pack(OGF_STATUS_PARAM, OCF_READ_LINK_QUALITY): + LENGTH_CHECK(read_link_quality); + + bt_hci_link_quality_rp(hci, PARAMHANDLE(read_link_quality)); + break; + + default: + bt_hci_event_status(hci, HCI_UNKNOWN_COMMAND); + break; + + short_hci: + fprintf(stderr, "%s: HCI packet too short (%iB)\n", + __FUNCTION__, length); + bt_hci_event_status(hci, HCI_INVALID_PARAMETERS); + break; + } +} + +/* We could perform fragmentation here, we can't do "recombination" because + * at this layer the length of the payload is not know ahead, so we only + * know that a packet contained the last fragment of the SDU when the next + * SDU starts. */ +static inline void bt_hci_lmp_acl_data(struct bt_hci_s *hci, uint16_t handle, + const uint8_t *data, int start, int len) +{ + struct hci_acl_hdr *pkt = (void *) hci->acl_buf; + + /* TODO: packet flags */ + /* TODO: avoid memcpy'ing */ + + if (len + HCI_ACL_HDR_SIZE > sizeof(hci->acl_buf)) { + fprintf(stderr, "%s: can't take ACL packets %i bytes long\n", + __FUNCTION__, len); + return; + } + memcpy(hci->acl_buf + HCI_ACL_HDR_SIZE, data, len); + + pkt->handle = cpu_to_le16( + acl_handle_pack(handle, start ? ACL_START : ACL_CONT)); + pkt->dlen = cpu_to_le16(len); + hci->info.acl_recv(hci->info.opaque, + hci->acl_buf, len + HCI_ACL_HDR_SIZE); +} + +static void bt_hci_lmp_acl_data_slave(struct bt_link_s *btlink, + const uint8_t *data, int start, int len) +{ + struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink; + + bt_hci_lmp_acl_data(hci_from_device(btlink->slave), + link->handle, data, start, len); +} + +static void bt_hci_lmp_acl_data_host(struct bt_link_s *link, + const uint8_t *data, int start, int len) +{ + bt_hci_lmp_acl_data(hci_from_device(link->host), + link->handle, data, start, len); +} + +static void bt_submit_acl(struct HCIInfo *info, + const uint8_t *data, int length) +{ + struct bt_hci_s *hci = hci_from_info(info); + uint16_t handle; + int datalen, flags; + struct bt_link_s *link; + + if (length < HCI_ACL_HDR_SIZE) { + fprintf(stderr, "%s: ACL packet too short (%iB)\n", + __FUNCTION__, length); + return; + } + + handle = acl_handle((data[1] << 8) | data[0]); + flags = acl_flags((data[1] << 8) | data[0]); + datalen = (data[3] << 8) | data[2]; + data += HCI_ACL_HDR_SIZE; + length -= HCI_ACL_HDR_SIZE; + + if (bt_hci_handle_bad(hci, handle)) { + fprintf(stderr, "%s: invalid ACL handle %03x\n", + __FUNCTION__, handle); + /* TODO: signal an error */ + return; + } + handle &= ~HCI_HANDLE_OFFSET; + + if (datalen > length) { + fprintf(stderr, "%s: ACL packet too short (%iB < %iB)\n", + __FUNCTION__, length, datalen); + return; + } + + link = hci->lm.handle[handle].link; + + if ((flags & ~3) == ACL_ACTIVE_BCAST) { + if (!hci->asb_handle) + hci->asb_handle = handle; + else if (handle != hci->asb_handle) { + fprintf(stderr, "%s: Bad handle %03x in Active Slave Broadcast\n", + __FUNCTION__, handle); + /* TODO: signal an error */ + return; + } + + /* TODO */ + } + + if ((flags & ~3) == ACL_PICO_BCAST) { + if (!hci->psb_handle) + hci->psb_handle = handle; + else if (handle != hci->psb_handle) { + fprintf(stderr, "%s: Bad handle %03x in Parked Slave Broadcast\n", + __FUNCTION__, handle); + /* TODO: signal an error */ + return; + } + + /* TODO */ + } + + /* TODO: increase counter and send EVT_NUM_COMP_PKTS */ + bt_hci_event_num_comp_pkts(hci, handle | HCI_HANDLE_OFFSET, 1); + + /* Do this last as it can trigger further events even in this HCI */ + hci->lm.handle[handle].lmp_acl_data(link, data, + (flags & 3) == ACL_START, length); +} + +static void bt_submit_sco(struct HCIInfo *info, + const uint8_t *data, int length) +{ + struct bt_hci_s *hci = hci_from_info(info); + struct bt_link_s *link; + uint16_t handle; + int datalen; + + if (length < 3) + return; + + handle = acl_handle((data[1] << 8) | data[0]); + datalen = data[2]; + data += 3; + length -= 3; + + if (bt_hci_handle_bad(hci, handle)) { + fprintf(stderr, "%s: invalid SCO handle %03x\n", + __FUNCTION__, handle); + return; + } + handle &= ~HCI_HANDLE_OFFSET; + + if (datalen > length) { + fprintf(stderr, "%s: SCO packet too short (%iB < %iB)\n", + __FUNCTION__, length, datalen); + return; + } + + link = hci->lm.handle[handle].link; + /* TODO */ + + /* TODO: increase counter and send EVT_NUM_COMP_PKTS if synchronous + * Flow Control is enabled. + * (See Read/Write_Synchronous_Flow_Control_Enable on page 513 and + * page 514.) */ +} + +static uint8_t *bt_hci_evt_packet(void *opaque) +{ + /* TODO: allocate a packet from upper layer */ + struct bt_hci_s *s = opaque; + + return s->evt_buf; +} + +static void bt_hci_evt_submit(void *opaque, int len) +{ + /* TODO: notify upper layer */ + struct bt_hci_s *s = opaque; + + return s->info.evt_recv(s->info.opaque, s->evt_buf, len); +} + +static int bt_hci_bdaddr_set(struct HCIInfo *info, const uint8_t *bd_addr) +{ + struct bt_hci_s *hci = hci_from_info(info); + + bacpy(&hci->device.bd_addr, (const bdaddr_t *) bd_addr); + return 0; +} + +void bt_hci_done(struct HCIInfo *info); +static void bt_hci_destroy(struct bt_device_s *dev) +{ + struct bt_hci_s *hci = hci_from_device(dev); + + return bt_hci_done(&hci->info); +} + +struct HCIInfo *bt_new_hci(struct bt_scatternet_s *net) +{ + struct bt_hci_s *s = qemu_mallocz(sizeof(struct bt_hci_s)); + + s->lm.inquiry_done = qemu_new_timer(vm_clock, bt_hci_inquiry_done, s); + s->lm.inquiry_next = qemu_new_timer(vm_clock, bt_hci_inquiry_next, s); + s->conn_accept_timer = + qemu_new_timer(vm_clock, bt_hci_conn_accept_timeout, s); + + s->evt_packet = bt_hci_evt_packet; + s->evt_submit = bt_hci_evt_submit; + s->opaque = s; + + bt_device_init(&s->device, net); + s->device.lmp_connection_request = bt_hci_lmp_connection_request; + s->device.lmp_connection_complete = bt_hci_lmp_connection_complete; + s->device.lmp_disconnect_master = bt_hci_lmp_disconnect_host; + s->device.lmp_disconnect_slave = bt_hci_lmp_disconnect_slave; + s->device.lmp_acl_data = bt_hci_lmp_acl_data_slave; + s->device.lmp_acl_resp = bt_hci_lmp_acl_data_host; + s->device.lmp_mode_change = bt_hci_lmp_mode_change_slave; + + /* Keep updated! */ + /* Also keep in sync with supported commands bitmask in + * bt_hci_read_local_commands_rp */ + s->device.lmp_caps = 0x8000199b7e85355fll; + + bt_hci_reset(s); + + s->info.cmd_send = bt_submit_hci; + s->info.sco_send = bt_submit_sco; + s->info.acl_send = bt_submit_acl; + s->info.bdaddr_set = bt_hci_bdaddr_set; + + s->device.handle_destroy = bt_hci_destroy; + + return &s->info; +} + +void bt_hci_done(struct HCIInfo *info) +{ + struct bt_hci_s *hci = hci_from_info(info); + int handle; + + bt_device_done(&hci->device); + + if (hci->device.lmp_name) + free((void *) hci->device.lmp_name); + + /* Be gentle and send DISCONNECT to all connected peers and those + * currently waiting for us to accept or reject a connection request. + * This frees the links. */ + if (hci->conn_req_host) + return bt_hci_connection_reject(hci, + hci->conn_req_host, HCI_OE_POWER_OFF); + + for (handle = HCI_HANDLE_OFFSET; + handle < (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX); handle ++) + if (!bt_hci_handle_bad(hci, handle)) + bt_hci_disconnect(hci, handle, HCI_OE_POWER_OFF); + + /* TODO: this is not enough actually, there may be slaves from whom + * we have requested a connection who will soon (or not) respond with + * an accept or a reject, so we should also check if hci->lm.connecting + * is non-zero and if so, avoid freeing the hci but otherwise disappear + * from all qemu social life (e.g. stop scanning and request to be + * removed from s->device.net) and arrange for + * s->device.lmp_connection_complete to free the remaining bits once + * hci->lm.awaiting_bdaddr[] is empty. */ + + qemu_free_timer(hci->lm.inquiry_done); + qemu_free_timer(hci->lm.inquiry_next); + qemu_free_timer(hci->conn_accept_timer); + + qemu_free(hci); +} |