CrazyRedMachine
f88ffdb854
add aciodrv-proc module explanation : PANB works differently from other acio devices ; you send one "start auto input" command without expecting a reply, and then the piano keeps spamming "recv poll" commands on the acio bus and never replies to any other commands.. failure to process these messages quickly enough will saturate the serial buffer and cause checksum errors after a while. for this reason, aciodrv-proc module was added in order to create a thread which manages these recv poll commands and keeps the latest known button state in memory so that it can be retrieved easily.
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
#define LOG_MODULE "aciodrv-panb"
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#include <string.h>
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#include "aciodrv/device.h"
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#include "aciodrv/panb.h"
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#include "util/thread.h"
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#include "util/log.h"
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bool aciodrv_panb_start_auto_input(struct aciodrv_device_ctx *device, uint8_t node_id, uint8_t node_count)
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{
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log_assert(device);
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struct ac_io_message msg;
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/* only the first node is handling the commands */
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if (node_id != 0) {
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return true;
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}
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msg.addr = node_id + 1;
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msg.cmd.code = ac_io_u16(AC_IO_CMD_PANB_START_AUTO_INPUT);
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msg.cmd.nbytes = 1;
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msg.cmd.count = node_count;
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if (!aciodrv_send(device, &msg)) {
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log_warning("Starting auto input failed");
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return false;
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}
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log_info("Started auto input for %d nodes", node_count);
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return true;
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}
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bool aciodrv_panb_recv_poll(struct aciodrv_device_ctx *device, struct ac_io_panb_poll_in *poll_in)
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{
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log_assert(device);
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struct ac_io_message msg;
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struct ac_io_panb_poll_in *poll_res = (struct ac_io_panb_poll_in *) &msg.cmd.raw;
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msg.cmd.code = ac_io_u16(AC_IO_CMD_PANB_POLL_REPLY);
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msg.cmd.nbytes = sizeof(struct ac_io_panb_poll_in);
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if (!aciodrv_recv(device,
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&msg, offsetof(struct ac_io_message, cmd.raw) + msg.cmd.nbytes + 1)) {
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log_warning("Getting state failed");
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return false;
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}
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if (poll_in != NULL){
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memcpy(poll_in, poll_res, sizeof(struct ac_io_panb_poll_in));
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}
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return true;
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}
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bool aciodrv_panb_send_lamp(struct aciodrv_device_ctx *device,
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uint8_t node_id, struct ac_io_panb_poll_out *state)
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{
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log_assert(device);
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struct ac_io_message msg;
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/* only the first node is handling the commands */
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if (node_id != 0) {
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return true;
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}
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msg.addr = node_id + 1;
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msg.cmd.code = ac_io_u16(AC_IO_CMD_PANB_SEND_LAMP);
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msg.cmd.nbytes = 0x54;
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memcpy(&msg.cmd.raw, state, sizeof(struct ac_io_panb_poll_out));
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if (!aciodrv_send(device, &msg)) {
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log_warning("Sending lamp state failed");
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return false;
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}
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return true;
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} |