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firesat: avc resend
- Add resending of AVC message to the card if no answer is received - Replace the homebrewed event_wait function with a standard wait queue - Clean up of log/error messages - Increase debug level of avc communication Signed-off-by: Henrik Kurelid <henrik@kurelid.se> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Henrik Kurelid
Stefan Richter
parent
df4846c352
commit
81c67b7f82
3 changed files with 94 additions and 79 deletions
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@ -26,7 +26,7 @@
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static unsigned int avc_comm_debug = 0;
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module_param(avc_comm_debug, int, 0644);
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MODULE_PARM_DESC(avc_comm_debug, "debug logging of AV/C communication, default is 0 (no)");
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MODULE_PARM_DESC(avc_comm_debug, "debug logging level [0..2] of AV/C communication, default is 0 (no)");
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static int __AVCRegisterRemoteControl(struct firesat*firesat, int internal);
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@ -37,22 +37,6 @@ static void avc_free_packet(struct hpsb_packet *packet)
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hpsb_free_packet(packet);
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}
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/*
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* Goofy routine that basically does a down_timeout function.
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* Stolen from sbp2.c
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*/
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static int avc_down_timeout(atomic_t *done, int timeout)
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{
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int i;
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for (i = timeout; (i > 0 && atomic_read(done) == 0); i-= HZ/10) {
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set_current_state(TASK_INTERRUPTIBLE);
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if (schedule_timeout(HZ/10)) /* 100ms */
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return(1);
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}
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return ((i > 0) ? 0:1);
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}
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static const char* get_ctype_string(__u8 ctype)
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{
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switch(ctype)
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@ -135,97 +119,115 @@ static void log_command_frame(const AVCCmdFrm *CmdFrm)
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{
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int k;
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printk(KERN_INFO "AV/C Command Frame:\n");
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printk("CommandType=%s, Address=%s(0x%02X,0x%02X), opcode=%s(0x%02X), "
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"length=%d\n", get_ctype_string(CmdFrm->ctype),
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printk(KERN_INFO "CommandType=%s, Address=%s(0x%02X,0x%02X), "
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"opcode=%s(0x%02X), length=%d\n",
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get_ctype_string(CmdFrm->ctype),
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get_subunit_address(CmdFrm->suid, CmdFrm->sutyp),
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CmdFrm->suid, CmdFrm->sutyp, get_opcode_string(CmdFrm->opcode),
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CmdFrm->opcode, CmdFrm->length);
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for(k = 0; k < CmdFrm->length - 3; k++) {
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if (k % 5 != 0)
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printk(", ");
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else if (k != 0)
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printk("\n");
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printk("operand[%d] = %02X", k, CmdFrm->operand[k]);
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if (avc_comm_debug > 1) {
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for(k = 0; k < CmdFrm->length - 3; k++) {
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if (k % 5 != 0)
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printk(", ");
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else if (k != 0)
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printk("\n");
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printk(KERN_INFO "operand[%d] = %02X", k,
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CmdFrm->operand[k]);
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}
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printk(KERN_INFO "\n");
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}
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printk("\n");
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}
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static void log_response_frame(const AVCRspFrm *RspFrm)
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{
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int k;
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printk(KERN_INFO "AV/C Response Frame:\n");
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printk("Response=%s, Address=%s(0x%02X,0x%02X), opcode=%s(0x%02X), "
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"length=%d\n", get_resp_string(RspFrm->resp),
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printk(KERN_INFO "Response=%s, Address=%s(0x%02X,0x%02X), "
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"opcode=%s(0x%02X), length=%d\n", get_resp_string(RspFrm->resp),
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get_subunit_address(RspFrm->suid, RspFrm->sutyp),
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RspFrm->suid, RspFrm->sutyp, get_opcode_string(RspFrm->opcode),
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RspFrm->opcode, RspFrm->length);
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for(k = 0; k < RspFrm->length - 3; k++) {
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if (k % 5 != 0)
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printk(", ");
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else if (k != 0)
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printk("\n");
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printk("operand[%d] = %02X", k, RspFrm->operand[k]);
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if (avc_comm_debug > 1) {
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for(k = 0; k < RspFrm->length - 3; k++) {
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if (k % 5 != 0)
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printk(KERN_INFO ", ");
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else if (k != 0)
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printk(KERN_INFO "\n");
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printk(KERN_INFO "operand[%d] = %02X", k,
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RspFrm->operand[k]);
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}
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printk(KERN_INFO "\n");
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}
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printk("\n");
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}
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static int __AVCWrite(struct firesat *firesat, const AVCCmdFrm *CmdFrm,
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AVCRspFrm *RspFrm) {
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struct hpsb_packet *packet;
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struct node_entry *ne;
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int num_tries = 0;
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int packet_ok = 0;
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ne = firesat->nodeentry;
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if(!ne) {
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printk("%s: lost node!\n",__func__);
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printk(KERN_ERR "%s: lost node!\n",__func__);
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return -EIO;
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}
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/* need all input data */
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if(!firesat || !ne || !CmdFrm) {
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printk("%s: missing input data!\n",__func__);
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printk(KERN_ERR "%s: missing input data!\n",__func__);
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return -EINVAL;
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}
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if (avc_comm_debug == 1) {
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if (avc_comm_debug > 0) {
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log_command_frame(CmdFrm);
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}
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if(RspFrm)
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atomic_set(&firesat->avc_reply_received, 0);
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packet=hpsb_make_writepacket(ne->host, ne->nodeid,
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COMMAND_REGISTER,
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(quadlet_t*)CmdFrm,
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CmdFrm->length);
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hpsb_set_packet_complete_task(packet,
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(void (*)(void*))avc_free_packet,
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packet);
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hpsb_node_fill_packet(ne, packet);
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while (packet_ok == 0 && num_tries < 6) {
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num_tries++;
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packet_ok = 1;
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packet = hpsb_make_writepacket(ne->host, ne->nodeid,
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COMMAND_REGISTER,
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(quadlet_t*)CmdFrm,
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CmdFrm->length);
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hpsb_set_packet_complete_task(packet,
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(void (*)(void*))avc_free_packet,
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packet);
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hpsb_node_fill_packet(ne, packet);
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if (hpsb_send_packet(packet) < 0) {
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avc_free_packet(packet);
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atomic_set(&firesat->avc_reply_received, 1);
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printk("%s: send failed!\n",__func__);
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return -EIO;
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}
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if(RspFrm) {
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// AV/C specs say that answers should be send within
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// 150 ms so let's time out after 200 ms
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if(avc_down_timeout(&firesat->avc_reply_received,
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HZ / 5)) {
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printk("%s: timeout waiting for avc response\n",
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__func__);
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if (hpsb_send_packet(packet) < 0) {
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avc_free_packet(packet);
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atomic_set(&firesat->avc_reply_received, 1);
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return -ETIMEDOUT;
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printk(KERN_ERR "%s: send failed!\n",__func__);
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return -EIO;
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}
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memcpy(RspFrm, firesat->respfrm,
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firesat->resp_length);
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RspFrm->length = firesat->resp_length;
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if (avc_comm_debug == 1) {
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log_response_frame(RspFrm);
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if(RspFrm) {
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// AV/C specs say that answers should be send within
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// 150 ms so let's time out after 200 ms
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if (wait_event_timeout(firesat->avc_wait,
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atomic_read(&firesat->avc_reply_received) == 1,
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HZ / 5) == 0) {
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packet_ok = 0;
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}
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else {
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memcpy(RspFrm, firesat->respfrm,
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firesat->resp_length);
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RspFrm->length = firesat->resp_length;
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if (avc_comm_debug > 0) {
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log_response_frame(RspFrm);
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}
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}
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}
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}
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if (packet_ok == 0) {
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printk(KERN_ERR "%s: AV/C response timed out 6 times.\n",
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__func__);
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return -ETIMEDOUT;
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}
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return 0;
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}
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@ -292,7 +294,8 @@ int AVCRecv(struct firesat *firesat, u8 *data, size_t length) {
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}
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#endif
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if(atomic_read(&firesat->avc_reply_received) == 1) {
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printk("%s: received out-of-order AVC response, ignored\n",__func__);
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printk(KERN_ERR "%s: received out-of-order AVC response, "
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"ignored\n",__func__);
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return -EINVAL;
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}
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// AVCRspFrm *resp=(AVCRspFrm *)data;
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@ -312,6 +315,7 @@ int AVCRecv(struct firesat *firesat, u8 *data, size_t length) {
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firesat->resp_length=length;
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atomic_set(&firesat->avc_reply_received, 1);
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wake_up(&firesat->avc_wait);
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return 0;
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}
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@ -740,11 +744,12 @@ int AVCIdentifySubunit(struct firesat *firesat, unsigned char *systemId, int *tr
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return -EIO;
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if(RspFrm.resp != STABLE && RspFrm.resp != ACCEPTED) {
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printk("%s: AVCWrite returned error code %d\n",__func__,RspFrm.resp);
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printk(KERN_ERR "%s: AVCWrite returned error code %d\n",
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__func__, RspFrm.resp);
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return -EINVAL;
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}
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if(((RspFrm.operand[3] << 8) + RspFrm.operand[4]) != 8) {
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printk("%s: Invalid response length\n",__func__);
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printk(KERN_ERR "%s: Invalid response length\n", __func__);
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return -EINVAL;
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}
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if(systemId)
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@ -777,7 +782,8 @@ int AVCTunerStatus(struct firesat *firesat, ANTENNA_INPUT_INFO *antenna_input_in
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return -EIO;
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if(RspFrm.resp != STABLE && RspFrm.resp != ACCEPTED) {
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printk("%s: AVCWrite returned code %d\n",__func__,RspFrm.resp);
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printk(KERN_ERR "%s: AVCWrite returned code %d\n",
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__func__, RspFrm.resp);
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return -EINVAL;
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}
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@ -788,7 +794,8 @@ int AVCTunerStatus(struct firesat *firesat, ANTENNA_INPUT_INFO *antenna_input_in
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sizeof(ANTENNA_INPUT_INFO));
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return 0;
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}
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printk("%s: invalid info returned from AVC\n",__func__);
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printk(KERN_ERR "%s: invalid tuner status (op=%d,length=%d) returned "
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"from AVC\n", __func__, RspFrm.operand[1], length);
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return -EINVAL;
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}
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@ -800,7 +807,8 @@ int AVCLNBControl(struct firesat *firesat, char voltage, char burst,
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AVCRspFrm RspFrm;
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int i,j;
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printk(KERN_INFO "%s: voltage = %x, burst = %x, conttone = %x\n",__func__,voltage,burst,conttone);
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printk(KERN_INFO "%s: voltage = %x, burst = %x, conttone = %x\n",
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__func__, voltage, burst, conttone);
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memset(&CmdFrm, 0, sizeof(AVCCmdFrm));
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@ -822,11 +830,13 @@ int AVCLNBControl(struct firesat *firesat, char voltage, char burst,
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for(j=0;j<nrdiseq;j++) {
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int k;
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printk(KERN_INFO "%s: diseq %d len %x\n",__func__,j,diseqcmd[j].msg_len);
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printk(KERN_INFO "%s: diseq %d len %x\n",
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__func__, j, diseqcmd[j].msg_len);
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CmdFrm.operand[i++]=diseqcmd[j].msg_len;
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for(k=0;k<diseqcmd[j].msg_len;k++) {
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printk(KERN_INFO "%s: diseq %d msg[%d] = %x\n",__func__,j,k,diseqcmd[j].msg[k]);
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printk(KERN_INFO "%s: diseq %d msg[%d] = %x\n",
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__func__, j, k, diseqcmd[j].msg[k]);
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CmdFrm.operand[i++]=diseqcmd[j].msg[k];
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}
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}
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@ -847,7 +857,8 @@ int AVCLNBControl(struct firesat *firesat, char voltage, char burst,
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return -EIO;
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if(RspFrm.resp != ACCEPTED) {
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printk("%s: AVCWrite returned code %d\n",__func__,RspFrm.resp);
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printk(KERN_ERR "%s: AVCWrite returned code %d\n",
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__func__, RspFrm.resp);
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return -EINVAL;
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}
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@ -879,7 +890,8 @@ int AVCSubUnitInfo(struct firesat *firesat, char *subunitcount)
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return -EIO;
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if(RspFrm.resp != STABLE) {
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printk("%s: AVCWrite returned code %d\n",__func__,RspFrm.resp);
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printk(KERN_ERR "%s: AVCWrite returned code %d\n",
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__func__, RspFrm.resp);
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return -EINVAL;
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}
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@ -1100,9 +1112,10 @@ int avc_ca_pmt(struct firesat *firesat, char *msg, int length)
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CmdFrm.opcode = VENDOR;
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if (msg[0] != LIST_MANAGEMENT_ONLY) {
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printk(KERN_ERR "The only list_manasgement parameter that is "
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"supported by the firesat driver is \"only\" (3).");
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return -EFAULT;
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printk(KERN_INFO "%s: list_management %d not support. "
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"Forcing list_management to \"only\" (3). \n",
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__func__, msg[0]);
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msg[0] = LIST_MANAGEMENT_ONLY;
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}
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// We take the cmd_id from the programme level only!
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list_management = msg[0];
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@ -140,6 +140,7 @@ struct firesat {
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int ca_time_interval;
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struct semaphore avc_sem;
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wait_queue_head_t avc_wait;
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atomic_t avc_reply_received;
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atomic_t reschedule_remotecontrol;
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@ -208,6 +208,7 @@ static int firesat_probe(struct device *dev)
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}
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sema_init(&firesat->avc_sem, 1);
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init_waitqueue_head(&firesat->avc_wait);
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atomic_set(&firesat->avc_reply_received, 1);
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sema_init(&firesat->demux_sem, 1);
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atomic_set(&firesat->reschedule_remotecontrol, 0);
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