* see https://github.com/dewert/nocturn-linux-midi for inspiration.
*/
-#define LOCAL_DEBUG
+#undef LOCAL_DEBUG
#include <ucw/lib.h>
#include <ucw/bitops.h>
#include <ucw/clists.h>
#include <ucw/gary.h>
#include <ucw/mainloop.h>
+#include <ucw/stkstring.h>
#include <ucw/string.h>
#include <stdio.h>
static libusb_context *usb_ctx;
static libusb_device_handle *usb_dev;
+static bool usb_iface_claimed;
+
+static void noct_error(int usb_err, char *text);
static struct main_file **usb_fds;
{ 2, 0x7f, 0x00 },
};
+static struct libusb_transfer *noct_read_xfer;
+static bool noct_read_pending;
+char noct_rotary_touched[10];
+char noct_button_pressed[16];
+
static void noct_read_done(struct libusb_transfer *xfer)
{
byte *pkt = xfer->buffer;
int len = xfer->actual_length;
DBG("USB: Read done: status %d, length %d", xfer->status, len);
+ noct_read_pending = 0;
if (xfer->status != LIBUSB_TRANSFER_COMPLETED)
- {
- msg(L_ERROR, "USB read failed with status %d, not submitting again", xfer->status);
- return;
- }
+ return noct_error(0, stk_printf("USB read failed with status %d", xfer->status));
#ifdef LOCAL_DEBUG
char buf[256];
int r = cmd - 0x40;
int delta = (arg < 0x40 ? arg : arg - 0x80);
DBG("Noct: Rotary %d = %d", r, delta);
+ notify_rotary(r, delta);
continue;
}
break;
if (arg < 0x80)
{
DBG("Noct: Slider value = %d", arg);
+ notify_rotary(9, arg);
continue;
}
break;
{
int delta = (arg < 0x40 ? arg : arg - 0x80);
DBG("Noct: Center = %d", delta);
+ notify_rotary(8, delta);
continue;
}
break;
{
int state = !!arg;
DBG("Noct: Center touch = %d", state);
+ noct_rotary_touched[8] = state;
+ notify_touch(8, state);
continue;
}
break;
{
int state = !!arg;
DBG("Noct: Slider touch = %d", state);
+ noct_rotary_touched[9] = state;
+ notify_touch(9, state);
continue;
}
break;
int r = cmd - 0x60;
int state = !!arg;
DBG("Noct: Rotary %d touch = %d", r, state);
+ noct_rotary_touched[r] = state;
+ notify_touch(r, state);
continue;
}
break;
int b = cmd - 0x70;
int state = !!arg;
DBG("Noct: Button %d = %d", b, state);
+ noct_button_pressed[b] = state;
+ notify_button(b, state);
continue;
}
break;
int err;
if ((err = libusb_submit_transfer(xfer)) < 0)
- die("Cannot submit transfer: error %d", err);
+ noct_error(err, "Cannot submit transfer");
+ else
+ noct_read_pending = 1;
}
static void noct_read_init(void)
{
DBG("Noct: Read init");
- struct libusb_transfer *xfer = libusb_alloc_transfer(0);
- libusb_fill_interrupt_transfer(xfer, usb_dev, 0x81, xmalloc(8), 8, noct_read_done, NULL, 0);
+ noct_read_xfer = libusb_alloc_transfer(0);
+ libusb_fill_interrupt_transfer(noct_read_xfer, usb_dev, 0x81, xmalloc(8), 8, noct_read_done, NULL, 0);
int err;
- if ((err = libusb_submit_transfer(xfer)) < 0)
- die("Cannot submit transfer: error %d", err);
+ if ((err = libusb_submit_transfer(noct_read_xfer)) < 0)
+ noct_error(err, "Cannot submit transfer");
+ else
+ noct_read_pending = 1;
}
-static byte noct_button_state[16];
-static byte noct_ring_mode[8]; // 0=from-min, 1=from-max, 2=from-mid-right, 3=from-mid-both, 4=single-on, 5=single-off
+static byte noct_button_light[16];
+static byte noct_ring_mode[8]; // RING_MODE_xxx
static byte noct_ring_val[9];
-static uns noct_dirty_button;
-static uns noct_dirty_ring_mode;
-static uns noct_dirty_ring_val;
+static uint noct_dirty_button;
+static uint noct_dirty_ring_mode;
+static uint noct_dirty_ring_val;
static struct libusb_transfer *noct_write_xfer;
-static uns noct_write_pending;
+static bool noct_write_pending;
static void noct_sched_write(void);
static void noct_write_done(struct libusb_transfer *xfer)
DBG("USB: Write done: status %d, length %d", xfer->status, len);
if (xfer->status != LIBUSB_TRANSFER_COMPLETED)
- {
- msg(L_ERROR, "USB write failed with status %d", xfer->status);
- return;
- }
+ return noct_error(0, stk_printf("USB write failed with status %d", xfer->status));
+ if (len < xfer->length)
+ msg(L_ERROR, "USB partial write: %d out of %d", len, xfer->length);
noct_write_pending = 0;
noct_sched_write();
}
-static void noct_do_write(uns cmd, uns arg)
+static void noct_do_write(uint cmd, uint arg)
{
DBG("USB: Submitting write %02x %02x", cmd, arg);
ASSERT(!noct_write_pending);
int err;
if ((err = libusb_submit_transfer(xfer)) < 0)
- die("Cannot submit transfer: error %d", err);
+ noct_error(err, "Cannot submit transfer");
}
static void noct_sched_write(void)
{
- if (noct_write_pending)
+ if (!usb_dev || noct_write_pending)
return;
if (noct_dirty_button)
{
int i = bit_ffs(noct_dirty_button);
noct_dirty_button ^= 1U << i;
- noct_do_write(0x70 + i, noct_button_state[i]);
+ noct_do_write(0x70 + i, noct_button_light[i]);
}
else if (noct_dirty_ring_mode)
{
int i = bit_ffs(noct_dirty_ring_val);
noct_dirty_ring_val ^= 1U << i;
if (i == 8)
- noct_do_write(0x50 + i, noct_ring_val[i]);
+ noct_do_write(0x50, noct_ring_val[i]);
else
noct_do_write(0x40 + i, noct_ring_val[i]);
}
}
+void noct_set_ring(int ring, int mode, int val)
+{
+ ASSERT(ring >= 0 && ring <= 8);
+ ASSERT(val >= 0 && val <= 0x7f);
+ ASSERT(mode >= 0 && mode <= 5);
+ ASSERT(ring < 8 || !mode);
+ if (noct_ring_mode[ring] != mode)
+ {
+ noct_ring_mode[ring] = mode;
+ noct_dirty_ring_mode |= 1U << ring;
+ noct_dirty_ring_val |= 1U << ring; // HW needs to re-send the value
+ }
+ if (noct_ring_val[ring] != val)
+ {
+ noct_ring_val[ring] = val;
+ noct_dirty_ring_val |= 1U << ring;
+ }
+ noct_sched_write();
+}
+
+void noct_set_button(int button, int val)
+{
+ ASSERT(button >= 0 && button < 16);
+ ASSERT(val == 0 || val == 1);
+ if (noct_button_light[button] != val)
+ {
+ noct_button_light[button] = val;
+ noct_dirty_button |= 1U << button;
+ noct_sched_write();
+ }
+}
+
+void noct_clear(void)
+{
+ for (int i=0; i<=8; i++)
+ noct_set_ring(i, RING_MODE_LEFT, 0);
+ for (int i=0; i<16; i++)
+ noct_set_button(i, 0);
+}
+
static void noct_write_init(void)
{
DBG("Noct: Write init");
noct_write_xfer = libusb_alloc_transfer(0);
libusb_fill_interrupt_transfer(noct_write_xfer, usb_dev, 0x02, xmalloc(8), 0, noct_write_done, NULL, 1000);
-#if 0 // FIXME
- noct_button_state[2] = 1;
- noct_ring_mode[0] = 4;
- noct_ring_val[0] = 0x40;
-#endif
-
+ bzero(noct_button_pressed, sizeof(noct_button_pressed));
+ bzero(noct_rotary_touched, sizeof(noct_rotary_touched));
noct_dirty_button = 0xffff;
noct_dirty_ring_mode = 0xff;
noct_dirty_ring_val = 0x1ff;
noct_sched_write();
}
-void noct_init(void)
+static struct main_timer noct_connect_timer;
+static struct main_hook noct_error_hook;
+
+static void noct_connect(struct main_timer *t)
{
+ timer_del(t);
+ msg(L_DEBUG, "Looking for Nocturn");
int err;
- if ((err = libusb_init(&usb_ctx)) < 0)
- die("libusb_init failed: error %d", err);
- libusb_set_debug(usb_ctx, 3);
-
libusb_device **dev_list;
libusb_device *found_dev = NULL;
ssize_t len = libusb_get_device_list(usb_ctx, &dev_list);
desc.idVendor == 0x1235 &&
desc.idProduct == 0x000a)
{
- msg(L_DEBUG, "Found device: bus %d, addr %d", libusb_get_bus_number(dev), libusb_get_device_address(dev));
+ msg(L_INFO, "Nocturn found at bus %d, addr %d", libusb_get_bus_number(dev), libusb_get_device_address(dev));
if (found_dev)
- die("Multiple Nocturn devices found. Please fix me to handle it.");
+ {
+ msg(L_ERROR, "Multiple Nocturn devices found. Using the first one.");
+ break;
+ }
found_dev = libusb_ref_device(dev);
}
}
libusb_free_device_list(dev_list, 1);
if (!found_dev)
- die("No Nocturn device found");
+ {
+ msg(L_INFO, "No Nocturn device found");
+ timer_add_rel(t, 5000);
+ return;
+ }
- msg(L_DEBUG, "Initializing device");
+ DBG("Initializing Nocturn");
if ((err = libusb_open(found_dev, &usb_dev)) < 0)
- die("libusb_open failed: error %d", err);
+ return noct_error(err, "libusb_open failed");
// There exist configurations 1 (high brightness) and 2 (power-save)
- if ((err = libusb_set_configuration(usb_dev, 1)) < 0)
- die("libusb_set_configuration: error %d", err);
+ if ((err = libusb_set_configuration(usb_dev, 2)) < 0)
+ return noct_error(err, "libusb_set_configuration failed");
if ((err = libusb_claim_interface(usb_dev, 0)) < 0)
- die("libusb_claim_interface: error %d", err);
+ return noct_error(err, "libusb_claim_interface failed");
+ usb_iface_claimed = 1;
for (int i=0; i<4; i++)
{
int done;
if ((err = libusb_interrupt_transfer(usb_dev, 0x02, (byte *) noct_magic[i] + 1, noct_magic[i][0], &done, 5000)) < 0)
- die("Cannot send init packets: error %d", err);
+ return noct_error(err, "Cannot send init packets");
if (done != noct_magic[i][0])
- die("Partial send of init packet: %d < %d", done, noct_magic[i][0]);
+ return noct_error(err, stk_printf("Partial send of init packet (%d < %d)", done, noct_magic[i][0]));
}
-#if 0
- byte xxx[] = { 0x7f, 0x01 };
- int done;
- libusb_interrupt_transfer(usb_dev, 0x02, xxx, 2, &done, 5000);
-#endif
+ noct_read_init();
+ noct_write_init();
+ schedule_update();
+}
+
+static int noct_error_handler(struct main_hook *h)
+{
+ DBG("Noct: Entered error handling hook");
+ hook_del(h);
+
+ if (usb_dev)
+ {
+ if (noct_read_xfer)
+ {
+ if (noct_read_pending)
+ {
+ DBG("Noct: Cancelling pending read");
+ libusb_cancel_transfer(noct_read_xfer);
+ noct_read_pending = 0;
+ }
+ DBG("Noct: Tearing down read xfer");
+ xfree(noct_read_xfer->buffer);
+ libusb_free_transfer(noct_read_xfer);
+ noct_read_xfer = NULL;
+ }
+ if (noct_write_xfer)
+ {
+ if (noct_write_pending)
+ {
+ DBG("Noct: Cancelling pending write");
+ libusb_cancel_transfer(noct_write_xfer);
+ noct_write_pending = 0;
+ }
+ DBG("Noct: Tearing down write xfer");
+ xfree(noct_write_xfer->buffer);
+ libusb_free_transfer(noct_write_xfer);
+ noct_write_xfer = NULL;
+ }
+ if (usb_iface_claimed)
+ {
+ DBG("Noct: Unclaiming interface");
+ libusb_release_interface(usb_dev, 0);
+ usb_iface_claimed = 0;
+ }
+ DBG("Noct: Resetting device");
+ libusb_reset_device(usb_dev);
+ libusb_close(usb_dev);
+ usb_dev = NULL;
+ }
+
+ DBG("Noct: Scheduling rescan after error");
+ timer_add_rel(&noct_connect_timer, 3000);
- DBG("USB: Connecting libusb to mainloop");
+ return HOOK_IDLE;
+}
+
+static void noct_error(int usb_err, char *text)
+{
+ if (usb_err)
+ msg(L_ERROR, "Nocturn: %s: error %d (%s)", text, usb_err, libusb_error_name(usb_err));
+ else
+ msg(L_ERROR, "Nocturn: %s", text);
+
+ DBG("Noct: Scheduling error handling hook");
+ hook_add(&noct_error_hook);
+}
+
+bool noct_is_ready(void)
+{
+ return !!usb_dev;
+}
+
+void noct_init(void)
+{
+ int err;
+
+ // Initialize libusb
+ if ((err = libusb_init(&usb_ctx)) < 0)
+ die("libusb_init failed: error %d", err);
+ libusb_set_debug(usb_ctx, 3);
+
+ // Connect libusb to UCW mainloop
if (!libusb_pollfds_handle_timeouts(usb_ctx))
die("Unsupported version of libusb, please fix me");
usb_added_fd(fds[i]->fd, fds[i]->events, NULL);
free(fds);
- noct_read_init();
- noct_write_init();
+ // Prepare error handling hook
+ noct_error_hook.handler = noct_error_handler;
+
+ // Schedule search for the Nocturn
+ noct_connect_timer.handler = noct_connect;
+ timer_add_rel(&noct_connect_timer, 100);
}
projects / ursary.git / blobdiff