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https://github.com/bluekitchen/btstack.git
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should have all rfcomm channel states coverd
This commit is contained in:
parent
8daabc2ea1
commit
2668327354
72
src/rfcomm.c
72
src/rfcomm.c
@ -95,12 +95,15 @@ typedef enum {
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typedef enum {
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RFCOMM_CHANNEL_CLOSED = 1,
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RFCOMM_CHANNEL_SEND_DM,
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RFCOMM_CHANNEL_W4_MULTIPLEXER,
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RFCOMM_CHANNEL_W4_CLIENT_AFTER_SABM, // received SABM
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RFCOMM_CHANNEL_SEND_UA,
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RFCOMM_CHANNEL_W4_CLIENT_AFTER_PN_CMD, // received PN_CMD
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RFCOMM_CHANNEL_W4_PN_BEFORE_OPEN,
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RFCOMM_CHANNEL_W4_PN_AFTER_OPEN,
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RFCOMM_CHANNEL_W4_PN_RSP,
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RFCOMM_CHANNEL_SEND_PN_RSP_W4_SABM_OR_PN_CMD,
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RFCOMM_CHANNEL_W4_SABM_OR_PN_CMD,
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RFCOMM_CHANNEL_SEND_SABM_W4_UA,
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RFCOMM_CHANNEL_W4_UA,
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@ -991,10 +994,8 @@ void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packe
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// channel already prepared by incoming PN_CMD
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if (rfChannel && rfChannel->state == RFCOMM_CHANNEL_W4_SABM_OR_PN_CMD){
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// confirm
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log_dbg("-> Sending UA #%u\n", frame_dlci);
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rfcomm_send_ua(multiplexer, frame_dlci);
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rfChannel->state = RFCOMM_CHANNEL_W4_MSC_CMD;
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rfChannel->state = RFCOMM_CHANNEL_SEND_UA;
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break;
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}
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// new channel
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@ -1010,6 +1011,8 @@ void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packe
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rfcomm_emit_connection_request(rfChannel);
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// TODO: if client max frame size is smaller than RFCOMM_DEFAULT_SIZE, send PN
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break;
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}
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} else {
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@ -1269,8 +1272,9 @@ void rfcomm_run(void){
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linked_item_t *it;
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for (it = (linked_item_t *) rfcomm_channels; it ; it = it->next){
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rfcomm_channel_t * channel = ((rfcomm_channel_t *) it);
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rfcomm_multiplexer_t * multiplexer = channel->multiplexer;
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if (!l2cap_can_send_packet_now(channel->multiplexer->l2cap_cid)) continue;
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if (!l2cap_can_send_packet_now(multiplexer->l2cap_cid)) continue;
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switch (channel->state){
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@ -1279,46 +1283,45 @@ void rfcomm_run(void){
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// this can then called after connection open/fail to handle all outgoing requests
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if (channel->outgoing && channel->multiplexer->state == RFCOMM_MULTIPLEXER_OPEN) {
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log_dbg("Sending UIH Parameter Negotiation Command for #%u\n", channel->dlci );
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rfcomm_send_uih_pn_command(channel->multiplexer, channel->dlci, channel->max_frame_size);
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rfcomm_send_uih_pn_command(multiplexer, channel->dlci, channel->max_frame_size);
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channel->state = RFCOMM_CHANNEL_W4_PN_RSP;
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}
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break;
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case RFCOMM_CHANNEL_SEND_SABM_W4_UA:
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log_dbg("Sending SABM #%u\n", channel->dlci);
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rfcomm_send_sabm(channel->multiplexer, channel->dlci);
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rfcomm_send_sabm(multiplexer, channel->dlci);
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channel->state = RFCOMM_CHANNEL_W4_UA;
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break;
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case RFCOMM_CHANNEL_SEND_MSC_CMD_W4_MSC_CMD_OR_MSC_RSP:
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log_dbg("Sending MSC CMD for #%u (RFCOMM_CHANNEL_W4_MSC_CMD_OR_MSC_RSP)\n", channel->dlci);
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rfcomm_send_uih_msc_cmd(channel->multiplexer, channel->dlci , 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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rfcomm_send_uih_msc_cmd(multiplexer, channel->dlci , 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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channel->state = RFCOMM_CHANNEL_W4_MSC_CMD_OR_MSC_RSP;
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break;
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case RFCOMM_CHANNEL_SEND_MSC_RSP_W4_MSC_RSP:
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// outgoing channel
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log_dbg("Sending MSC RSP for #%u\n", channel->dlci);
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rfcomm_send_uih_msc_rsp(channel->multiplexer, channel->dlci, 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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rfcomm_send_uih_msc_rsp(multiplexer, channel->dlci, 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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channel->state = RFCOMM_CHANNEL_W4_MSC_RSP;
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break;
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case RFCOMM_CHANNEL_SEND_MSC_RSP_MSC_CMD_W4_CREDITS:
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// incoming channel
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log_dbg("-> Sending MSC RSP for #%u\n", channel->dlci);
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rfcomm_send_uih_msc_rsp(channel->multiplexer, channel->dlci, 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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rfcomm_send_uih_msc_rsp(multiplexer, channel->dlci, 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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channel->state = RFCOMM_CHANNEL_SEND_MSC_CMD_SEND_CREDITS;
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break;
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case RFCOMM_CHANNEL_SEND_MSC_CMD_SEND_CREDITS:
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// start our negotiation
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log_dbg("Sending MSC CMD for #%u (but should wait for l2cap credits)\n", channel->dlci);
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rfcomm_send_uih_msc_cmd(channel->multiplexer, channel->dlci, 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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rfcomm_send_uih_msc_cmd(multiplexer, channel->dlci, 0x8d); // ea=1,fc=0,rtc=1,rtr=1,ic=0,dv=1
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channel->state = RFCOMM_CHANNEL_SEND_CREDITS;
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break;
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case RFCOMM_CHANNEL_SEND_CREDITS:
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log_dbg("Providing credits for #%u\n", channel->dlci);
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rfcomm_channel_provide_credits(channel);
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@ -1330,7 +1333,30 @@ void rfcomm_run(void){
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log_dbg("Waiting for credits for #%u\n", channel->dlci);
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}
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break;
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case RFCOMM_CHANNEL_SEND_DM:
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log_dbg("Sending DM_PF for #%u\n", channel->dlci);
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rfcomm_send_dm_pf(multiplexer, channel->dlci);
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// remove from list
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linked_list_remove( &rfcomm_channels, (linked_item_t *) channel);
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// free channel
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free(channel);
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rfcomm_multiplexer_prepare_idle_timer(multiplexer);
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break;
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case RFCOMM_CHANNEL_SEND_UA:
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log_dbg("Sending UA #%u\n", channel->dlci);
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rfcomm_send_ua(multiplexer, channel->dlci);
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channel->state = RFCOMM_CHANNEL_W4_MSC_CMD;
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break;
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case RFCOMM_CHANNEL_SEND_PN_RSP_W4_SABM_OR_PN_CMD:
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log_dbg("Sending UIH Parameter Negotiation Respond for #%u\n", channel->dlci);
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rfcomm_send_uih_pn_response(multiplexer, channel->dlci, channel->pn_priority, channel->max_frame_size);
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// wait for SABM #channel or other UIH PN
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channel->state = RFCOMM_CHANNEL_W4_SABM_OR_PN_CMD;
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break;
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default:
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break;
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}
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@ -1513,15 +1539,11 @@ void rfcomm_accept_connection_internal(uint16_t rfcomm_cid){
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if (!channel) return;
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switch (channel->state) {
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case RFCOMM_CHANNEL_W4_CLIENT_AFTER_SABM:
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channel->state = RFCOMM_CHANNEL_W4_MSC_CMD;
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log_dbg("-> Sending UA #%u\n", channel->dlci);
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rfcomm_send_ua(channel->multiplexer, channel->dlci);
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channel->state = RFCOMM_CHANNEL_SEND_UA;
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break;
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case RFCOMM_CHANNEL_W4_CLIENT_AFTER_PN_CMD:
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log_dbg("-> Sending UIH Parameter Negotiation Respond for #%u\n", channel->dlci);
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rfcomm_send_uih_pn_response(channel->multiplexer, channel->dlci, channel->pn_priority, channel->max_frame_size);
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// wait for SABM #channel or other UIH PN
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channel->state = RFCOMM_CHANNEL_W4_SABM_OR_PN_CMD;
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channel->state = RFCOMM_CHANNEL_SEND_PN_RSP_W4_SABM_OR_PN_CMD;
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break;
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default:
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break;
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}
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@ -1531,17 +1553,11 @@ void rfcomm_decline_connection_internal(uint16_t rfcomm_cid){
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log_dbg("Received Decline Connction\n");
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rfcomm_channel_t * channel = rfcomm_channel_for_rfcomm_cid(rfcomm_cid);
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if (!channel) return;
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rfcomm_multiplexer_t * multiplexer = channel->multiplexer;
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switch (channel->state) {
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case RFCOMM_CHANNEL_W4_CLIENT_AFTER_SABM:
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case RFCOMM_CHANNEL_W4_CLIENT_AFTER_PN_CMD:
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log_dbg("-> Sending DM_PF for #%u\n", channel->dlci);
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rfcomm_send_dm_pf(channel->multiplexer, channel->dlci);
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// remove from list
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linked_list_remove( &rfcomm_channels, (linked_item_t *) channel);
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// free channel
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free(channel);
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rfcomm_multiplexer_prepare_idle_timer(multiplexer);
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channel->state = RFCOMM_CHANNEL_SEND_DM;
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break;
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default:
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break;
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}
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