diff options
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/Kconfig | 28 | ||||
| -rw-r--r-- | sound/usb/Makefile | 2 | ||||
| -rw-r--r-- | sound/usb/caiaq/Makefile | 3 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-audio.c | 706 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-audio.h | 7 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-device.c | 436 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-device.h | 116 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-input.c | 246 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-input.h | 8 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-midi.c | 177 | ||||
| -rw-r--r-- | sound/usb/caiaq/caiaq-midi.h | 8 |
11 files changed, 1736 insertions, 1 deletions
diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig index f05d02f5b69..315360f3127 100644 --- a/sound/usb/Kconfig +++ b/sound/usb/Kconfig @@ -29,5 +29,33 @@ config SND_USB_USX2Y To compile this driver as a module, choose M here: the module will be called snd-usb-usx2y. +config SND_USB_CAIAQ + tristate "Native Instruments USB audio devices" + depends on SND && USB + select SND_HWDEP + select SND_RAWMIDI + select SND_PCM + help + Say Y here to include support for caiaq USB audio interfaces, + namely: + + * Native Instruments RigKontrol2 + * Native Instruments Kore Controller + * Native Instruments Audio Kontrol 1 + * Native Instruments Audio 8 DJ + + To compile this driver as a module, choose M here: the module + will be called snd-usb-caiaq. + +config SND_USB_CAIAQ_INPUT + bool "enable input device for controllers" + depends on SND_USB_CAIAQ + help + Say Y here to support input controllers like buttons, knobs, + alpha dials and analog pedals on the following products: + + * Native Instruments RigKontrol2 + * Native Instruments Audio Kontrol 1 + endmenu diff --git a/sound/usb/Makefile b/sound/usb/Makefile index 2c1dc11a72e..aa252ef2ebf 100644 --- a/sound/usb/Makefile +++ b/sound/usb/Makefile @@ -9,4 +9,4 @@ snd-usb-lib-objs := usbmidi.o obj-$(CONFIG_SND_USB_AUDIO) += snd-usb-audio.o snd-usb-lib.o obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-lib.o -obj-$(CONFIG_SND) += usx2y/ +obj-$(CONFIG_SND) += usx2y/ caiaq/ diff --git a/sound/usb/caiaq/Makefile b/sound/usb/caiaq/Makefile new file mode 100644 index 00000000000..455c8c58a1b --- /dev/null +++ b/sound/usb/caiaq/Makefile @@ -0,0 +1,3 @@ +snd-usb-caiaq-objs := caiaq-device.o caiaq-audio.o caiaq-midi.o caiaq-input.o + +obj-$(CONFIG_SND_USB_CAIAQ) += snd-usb-caiaq.o diff --git a/sound/usb/caiaq/caiaq-audio.c b/sound/usb/caiaq/caiaq-audio.c new file mode 100644 index 00000000000..e80c8db237d --- /dev/null +++ b/sound/usb/caiaq/caiaq-audio.c @@ -0,0 +1,706 @@ +/* + * Copyright (c) 2006,2007 Daniel Mack, Karsten Wiese + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <sound/driver.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/usb.h> +#include <linux/spinlock.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/rawmidi.h> +#ifdef CONFIG_SND_USB_CAIAQ_INPUT +#include <linux/input.h> +#endif + +#include "caiaq-device.h" +#include "caiaq-audio.h" + +#define N_URBS 32 +#define CLOCK_DRIFT_TOLERANCE 5 +#define FRAMES_PER_URB 8 +#define BYTES_PER_FRAME 512 +#define CHANNELS_PER_STREAM 2 +#define BYTES_PER_SAMPLE 3 +#define BYTES_PER_SAMPLE_USB 4 +#define MAX_BUFFER_SIZE (128*1024) + +#define ENDPOINT_CAPTURE 2 +#define ENDPOINT_PLAYBACK 6 + +#define MAKE_CHECKBYTE(dev,stream,i) \ + (stream << 1) | (~(i / (dev->n_streams * BYTES_PER_SAMPLE_USB)) & 1) + +static struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = { + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER), + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .rates = (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000), + .rate_min = 44100, + .rate_max = 0, /* will overwrite later */ + .channels_min = CHANNELS_PER_STREAM, + .channels_max = CHANNELS_PER_STREAM, + .buffer_bytes_max = MAX_BUFFER_SIZE, + .period_bytes_min = 4096, + .period_bytes_max = MAX_BUFFER_SIZE, + .periods_min = 1, + .periods_max = 1024, +}; + +static void +activate_substream(struct snd_usb_caiaqdev *dev, + struct snd_pcm_substream *sub) +{ + if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + dev->sub_playback[sub->number] = sub; + else + dev->sub_capture[sub->number] = sub; +} + +static void +deactivate_substream(struct snd_usb_caiaqdev *dev, + struct snd_pcm_substream *sub) +{ + if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + dev->sub_playback[sub->number] = NULL; + else + dev->sub_capture[sub->number] = NULL; +} + +static int +all_substreams_zero(struct snd_pcm_substream **subs) +{ + int i; + for (i = 0; i < MAX_STREAMS; i++) + if (subs[i] != NULL) + return 0; + return 1; +} + +static int stream_start(struct snd_usb_caiaqdev *dev) +{ + int i, ret; + + debug("stream_start(%p)\n", dev); + spin_lock_irq(&dev->spinlock); + if (dev->streaming) { + spin_unlock_irq(&dev->spinlock); + return -EINVAL; + } + + dev->input_panic = 0; + dev->output_panic = 0; + dev->first_packet = 1; + dev->streaming = 1; + + for (i = 0; i < N_URBS; i++) { + ret = usb_submit_urb(dev->data_urbs_in[i], GFP_ATOMIC); + if (ret) { + log("unable to trigger initial read #%d! (ret = %d)\n", + i, ret); + dev->streaming = 0; + spin_unlock_irq(&dev->spinlock); + return -EPIPE; + } + } + + spin_unlock_irq(&dev->spinlock); + return 0; +} + +static void stream_stop(struct snd_usb_caiaqdev *dev) +{ + int i; + + debug("stream_stop(%p)\n", dev); + if (!dev->streaming) + return; + + dev->streaming = 0; + for (i = 0; i < N_URBS; i++) { + usb_unlink_urb(dev->data_urbs_in[i]); + usb_unlink_urb(dev->data_urbs_out[i]); + } +} + +static int snd_usb_caiaq_substream_open(struct snd_pcm_substream *substream) +{ + struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream); + debug("snd_usb_caiaq_substream_open(%p)\n", substream); + substream->runtime->hw = dev->pcm_info; + snd_pcm_limit_hw_rates(substream->runtime); + return 0; +} + +static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream) +{ + struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream); + + debug("snd_usb_caiaq_substream_close(%p)\n", substream); + if (all_substreams_zero(dev->sub_playback) && + all_substreams_zero(dev->sub_capture)) { + /* when the last client has stopped streaming, + * all sample rates are allowed again */ + stream_stop(dev); + dev->pcm_info.rates = dev->samplerates; + } + + return 0; +} + +static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub, + struct snd_pcm_hw_params *hw_params) +{ + debug("snd_usb_caiaq_pcm_hw_params(%p)\n", sub); + return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params)); +} + +static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub) +{ + struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub); + debug("snd_usb_caiaq_pcm_hw_free(%p)\n", sub); + spin_lock_irq(&dev->spinlock); + deactivate_substream(dev, sub); + spin_unlock_irq(&dev->spinlock); + return snd_pcm_lib_free_pages(sub); +} + +/* this should probably go upstream */ +#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12 +#error "Change this table" +#endif + +static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100, + 48000, 64000, 88200, 96000, 176400, 192000 }; + +static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream) +{ + int bytes_per_sample, bpp, ret, i; + int index = substream->number; + struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + + debug("snd_usb_caiaq_pcm_prepare(%p)\n", substream); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + dev->audio_out_buf_pos[index] = BYTES_PER_SAMPLE + 1; + else + dev->audio_in_buf_pos[index] = 0; + + if (dev->streaming) + return 0; + + /* the first client that opens a stream defines the sample rate + * setting for all subsequent calls, until the last client closed. */ + for (i=0; i < ARRAY_SIZE(rates); i++) + if (runtime->rate == rates[i]) + dev->pcm_info.rates = 1 << i; + + snd_pcm_limit_hw_rates(runtime); + + bytes_per_sample = BYTES_PER_SAMPLE; + if (dev->spec.data_alignment == 2) + bytes_per_sample++; + + bpp = ((runtime->rate / 8000) + CLOCK_DRIFT_TOLERANCE) + * bytes_per_sample * CHANNELS_PER_STREAM * dev->n_streams; + + ret = snd_usb_caiaq_set_audio_params(dev, runtime->rate, + runtime->sample_bits, bpp); + if (ret) + return ret; + + ret = stream_start(dev); + if (ret) + return ret; + + dev->output_running = 0; + wait_event_timeout(dev->prepare_wait_queue, dev->output_running, HZ); + if (!dev->output_running) { + stream_stop(dev); + return -EPIPE; + } + + return 0; +} + +static int snd_usb_caiaq_pcm_trigger(struct snd_pcm_substream *sub, int cmd) +{ + struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + spin_lock(&dev->spinlock); + activate_substream(dev, sub); + spin_unlock(&dev->spinlock); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + spin_lock(&dev->spinlock); + deactivate_substream(dev, sub); + spin_unlock(&dev->spinlock); + break; + default: + return -EINVAL; + } + + return 0; +} + +static snd_pcm_uframes_t +snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub) +{ + int index = sub->number; + struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub); + + if (dev->input_panic || dev->output_panic) + return SNDRV_PCM_POS_XRUN; + + if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + return bytes_to_frames(sub->runtime, + dev->audio_out_buf_pos[index]); + else + return bytes_to_frames(sub->runtime, + dev->audio_in_buf_pos[index]); +} + +/* operators for both playback and capture */ +static struct snd_pcm_ops snd_usb_caiaq_ops = { + .open = snd_usb_caiaq_substream_open, + .close = snd_usb_caiaq_substream_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_usb_caiaq_pcm_hw_params, + .hw_free = snd_usb_caiaq_pcm_hw_free, + .prepare = snd_usb_caiaq_pcm_prepare, + .trigger = snd_usb_caiaq_pcm_trigger, + .pointer = snd_usb_caiaq_pcm_pointer +}; + +static void check_for_elapsed_periods(struct snd_usb_caiaqdev *dev, + struct snd_pcm_substream **subs) +{ + int stream, pb, *cnt; + struct snd_pcm_substream *sub; + + for (stream = 0; stream < dev->n_streams; stream++) { + sub = subs[stream]; + if (!sub) + continue; + + pb = frames_to_bytes(sub->runtime, + sub->runtime->period_size); + cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ? + &dev->period_out_count[stream] : + &dev->period_in_count[stream]; + + if (*cnt >= pb) { + snd_pcm_period_elapsed(sub); + *cnt %= pb; + } + } +} + +static void read_in_urb_mode0(struct snd_usb_caiaqdev *dev, + const struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + struct snd_pcm_substream *sub; + int stream, i; + + if (all_substreams_zero(dev->sub_capture)) + return; + + spin_lock(&dev->spinlock); + + for (i = 0; i < iso->actual_length;) { + for (stream = 0; stream < dev->n_streams; stream++, i++) { + sub = dev->sub_capture[stream]; + if (sub) { + struct snd_pcm_runtime *rt = sub->runtime; + char *audio_buf = rt->dma_area; + int sz = frames_to_bytes(rt, rt->buffer_size); + audio_buf[dev->audio_in_buf_pos[stream]++] + = usb_buf[i]; + dev->period_in_count[stream]++; + if (dev->audio_in_buf_pos[stream] == sz) + dev->audio_in_buf_pos[stream] = 0; + } + } + } + + spin_unlock(&dev->spinlock); +} + +static void read_in_urb_mode2(struct snd_usb_caiaqdev *dev, + const struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + unsigned char check_byte; + struct snd_pcm_substream *sub; + int stream, i; + + spin_lock(&dev->spinlock); + + for (i = 0; i < iso->actual_length;) { + if (i % (dev->n_streams * BYTES_PER_SAMPLE_USB) == 0) { + for (stream = 0; + stream < dev->n_streams; + stream++, i++) { + if (dev->first_packet) + continue; + + check_byte = MAKE_CHECKBYTE(dev, stream, i); + + if ((usb_buf[i] & 0x3f) != check_byte) + dev->input_panic = 1; + + if (usb_buf[i] & 0x80) + dev->output_panic = 1; + } + } + dev->first_packet = 0; + + for (stream = 0; stream < dev->n_streams; stream++, i++) { + sub = dev->sub_capture[stream]; + if (sub) { + struct snd_pcm_runtime *rt = sub->runtime; + char *audio_buf = rt->dma_area; + int sz = frames_to_bytes(rt, rt->buffer_size); + audio_buf[dev->audio_in_buf_pos[stream]++] + = usb_buf[i]; + dev->period_in_count[stream]++; + if (dev->audio_in_buf_pos[stream] == sz) + dev->audio_in_buf_pos[stream] = 0; + } + } + } + + spin_unlock(&dev->spinlock); +} + +static void read_in_urb(struct snd_usb_caiaqdev *dev, + const struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + if (!dev->streaming) + return; + + switch (dev->spec.data_alignment) { + case 0: + read_in_urb_mode0(dev, urb, iso); + break; + case 2: + read_in_urb_mode2(dev, urb, iso); + break; + } + + if (dev->input_panic || dev->output_panic) { + debug("streaming error detected %s %s\n", + dev->input_panic ? "(input)" : "", + dev->output_panic ? "(output)" : ""); + } + + check_for_elapsed_periods(dev, dev->sub_capture); +} + +static void fill_out_urb(struct snd_usb_caiaqdev *dev, + struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + struct snd_pcm_substream *sub; + int stream, i; + + spin_lock(&dev->spinlock); + + for (i = 0; i < iso->length;) { + for (stream = 0; stream < dev->n_streams; stream++) { + sub = dev->sub_playback[stream]; + if (sub) { + struct snd_pcm_runtime *rt = sub->runtime; + char *audio_buf = rt->dma_area; + int sz = frames_to_bytes(rt, rt->buffer_size); + usb_buf[i++] + = audio_buf[dev->audio_out_buf_pos[stream]++]; + dev->audio_out_buf_pos[stream]++; + if (dev->audio_out_buf_pos[stream] == sz) + dev->audio_out_buf_pos[stream] = 0; + } else + usb_buf[i++] = 0; + + /* fill in the check bytes */ + if (dev->spec.data_alignment == 2 && + i % (dev->n_streams * BYTES_PER_SAMPLE_USB) == + (dev->n_streams * CHANNELS_PER_STREAM)) + for (stream = 0; stream < dev->n_streams; stream++, i++) + usb_buf[i] = MAKE_CHECKBYTE(dev, stream, i); + } + } + + spin_unlock(&dev->spinlock); + check_for_elapsed_periods(dev, dev->sub_playback); +} + +static void read_completed(struct urb *urb) +{ + struct snd_usb_caiaq_cb_info *info = urb->context; + struct snd_usb_caiaqdev *dev; + struct urb *out; + int frame, len, send_it = 0, outframe = 0; + + if (urb->status || !info) + return; + + dev = info->dev; + if (!dev->streaming) + return; + + out = dev->data_urbs_out[info->index]; + + /* read the recently received packet and send back one which has + * the same layout */ + for (frame = 0; frame < FRAMES_PER_URB; frame++) { + if (urb->iso_frame_desc[frame].status) + continue; + + len = urb->iso_frame_desc[outframe].actual_length; + out->iso_frame_desc[outframe].length = len; + out->iso_frame_desc[outframe].actual_length = 0; + out->iso_frame_desc[outframe].offset = BYTES_PER_FRAME * frame; + + if (len > 0) { + fill_out_urb(dev, out, &out->iso_frame_desc[outframe]); + read_in_urb(dev, urb, &urb->iso_frame_desc[frame]); + send_it = 1; + } + + outframe++; + } + + if (send_it) { + out->number_of_packets = FRAMES_PER_URB; + out->transfer_flags = URB_ISO_ASAP; + usb_submit_urb(out, GFP_ATOMIC); + } + + /* re-submit inbound urb */ + for (frame = 0; frame < FRAMES_PER_URB; frame++) { + urb->iso_frame_desc[frame].offset = BYTES_PER_FRAME * frame; + urb->iso_frame_desc[frame].length = BYTES_PER_FRAME; + urb->iso_frame_desc[frame].actual_length = 0; + } + + urb->number_of_packets = FRAMES_PER_URB; + urb->transfer_flags = URB_ISO_ASAP; + usb_submit_urb(urb, GFP_ATOMIC); +} + +static void write_completed(struct urb *urb) +{ + struct snd_usb_caiaq_cb_info *info = urb->context; + struct snd_usb_caiaqdev *dev = info->dev; + + if (!dev->output_running) { + dev->output_running = 1; + wake_up(&dev->prepare_wait_queue); + } +} + +static struct urb **alloc_urbs(struct snd_usb_caiaqdev *dev, int dir, int *ret) +{ + int i, frame; + struct urb **urbs; + struct usb_device *usb_dev = dev->chip.dev; + unsigned int pipe; + + pipe = (dir == SNDRV_PCM_STREAM_PLAYBACK) ? + usb_sndisocpipe(usb_dev, ENDPOINT_PLAYBACK) : + usb_rcvisocpipe(usb_dev, ENDPOINT_CAPTURE); + + urbs = kmalloc(N_URBS * sizeof(*urbs), GFP_KERNEL); + if (!urbs) { + log("unable to kmalloc() urbs, OOM!?\n"); + *ret = -ENOMEM; + return NULL; + } + + for (i = 0; i < N_URBS; i++) { + urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL); + if (!urbs[i]) { + log("unable to usb_alloc_urb(), OOM!?\n"); + *ret = -ENOMEM; + return urbs; + } + + urbs[i]->transfer_buffer = + kmalloc(FRAMES_PER_URB * BYTES_PER_FRAME, GFP_KERNEL); + if (!urbs[i]->transfer_buffer) { + log("unable to kmalloc() transfer buffer, OOM!?\n"); + *ret = -ENOMEM; + return urbs; + } + + for (frame = 0; frame < FRAMES_PER_URB; frame++) { + struct usb_iso_packet_descriptor *iso = + &urbs[i]->iso_frame_desc[frame]; + + iso->offset = BYTES_PER_FRAME * frame; + iso->length = BYTES_PER_FRAME; + } + + urbs[i]->dev = usb_dev; + urbs[i]->pipe = pipe; + urbs[i]->transfer_buffer_length = FRAMES_PER_URB + * BYTES_PER_FRAME; + urbs[i]->context = &dev->data_cb_info[i]; + urbs[i]->interval = 1; + urbs[i]->transfer_flags = URB_ISO_ASAP; + urbs[i]->number_of_packets = FRAMES_PER_URB; + urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ? + read_completed : write_completed; + } + + *ret = 0; + return urbs; +} + +static void free_urbs(struct urb **urbs) +{ + int i; + + if (!urbs) + return; + + for (i = 0; i < N_URBS; i++) { + if (!urbs[i]) + continue; + + usb_kill_urb(urbs[i]); + kfree(urbs[i]->transfer_buffer); + usb_free_urb(urbs[i]); + } + + kfree(urbs); +} + +int __devinit snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev) +{ + int i, ret; + + dev->n_audio_in = max(dev->spec.num_analog_audio_in, + dev->spec.num_digital_audio_in) / + CHANNELS_PER_STREAM; + dev->n_audio_out = max(dev->spec.num_analog_audio_out, + dev->spec.num_digital_audio_out) / + CHANNELS_PER_STREAM; + dev->n_streams = max(dev->n_audio_in, dev->n_audio_out); + + debug("dev->n_audio_in = %d\n", dev->n_audio_in); + debug("dev->n_audio_out = %d\n", dev->n_audio_out); + debug("dev->n_streams = %d\n", dev->n_streams); + + if (dev->n_streams > MAX_STREAMS) { + log("unable to initialize device, too many streams.\n"); + return -EINVAL; + } + + ret = snd_pcm_new(dev->chip.card, dev->product_name, 0, + dev->n_audio_out, dev->n_audio_in, &dev->pcm); + + if (ret < 0) { + log("snd_pcm_new() returned %d\n", ret); + return ret; + } + + dev->pcm->private_data = dev; + strcpy(dev->pcm->name, dev->product_name); + + memset(dev->sub_playback, 0, sizeof(dev->sub_playback)); + memset(dev->sub_capture, 0, sizeof(dev->sub_capture)); + + memcpy(&dev->pcm_info, &snd_usb_caiaq_pcm_hardware, + sizeof(snd_usb_caiaq_pcm_hardware)); + + /* setup samplerates */ + dev->samplerates = dev->pcm_info.rates; + switch (dev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + dev->samplerates |= SNDRV_PCM_RATE_88200; + dev->samplerates |= SNDRV_PCM_RATE_192000; + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): + dev->samplerates |= SNDRV_PCM_RATE_88200; + break; + } + + snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_usb_caiaq_ops); + snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_usb_caiaq_ops); + + snd_pcm_lib_preallocate_pages_for_all(dev->pcm, + SNDRV_DMA_TYPE_CONTINUOUS, + snd_dma_continuous_data(GFP_KERNEL), + MAX_BUFFER_SIZE, MAX_BUFFER_SIZE); + + dev->data_cb_info = + kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS, + GFP_KERNEL); + + if (!dev->data_cb_info) + return -ENOMEM; + + for (i = 0; i < N_URBS; i++) { + dev->data_cb_info[i].dev = dev; + dev->data_cb_info[i].index = i; + } + + dev->data_urbs_in = alloc_urbs(dev, SNDRV_PCM_STREAM_CAPTURE, &ret); + if (ret < 0) { + kfree(dev->data_cb_info); + free_urbs(dev->data_urbs_in); + return ret; + } + + dev->data_urbs_out = alloc_urbs(dev, SNDRV_PCM_STREAM_PLAYBACK, &ret); + if (ret < 0) { + kfree(dev->data_cb_info); + free_urbs(dev->data_urbs_in); + free_urbs(dev->data_urbs_out); + return ret; + } + + return 0; +} + +void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev) +{ + debug("snd_usb_caiaq_audio_free (%p)\n", dev); + stream_stop(dev); + free_urbs(dev->data_urbs_in); + free_urbs(dev->data_urbs_out); + kfree(dev->data_cb_info); +} + diff --git a/sound/usb/caiaq/caiaq-audio.h b/sound/usb/caiaq/caiaq-audio.h new file mode 100644 index 00000000000..8ab1f8d9529 --- /dev/null +++ b/sound/usb/caiaq/caiaq-audio.h @@ -0,0 +1,7 @@ +#ifndef CAIAQ_AUDIO_H +#define CAIAQ_AUDIO_H + +int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev); +void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev); + +#endif /* CAIAQ_AUDIO_H */ diff --git a/sound/usb/caiaq/caiaq-device.c b/sound/usb/caiaq/caiaq-device.c new file mode 100644 index 00000000000..4709347326f --- /dev/null +++ b/sound/usb/caiaq/caiaq-device.c @@ -0,0 +1,436 @@ +/* + * caiaq.c: ALSA driver for caiaq/NativeInstruments devices + * + * Copyright (c) 2007 Daniel Mack <daniel@caiaq.de> + * Karsten Wiese <fzu@wemgehoertderstaat.de> + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/usb.h> +#include <linux/input.h> +#include <linux/spinlock.h> +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/rawmidi.h> + +#include "caiaq-device.h" +#include "caiaq-audio.h" +#include "caiaq-midi.h" + +#ifdef CONFIG_SND_USB_CAIAQ_INPUT +#include "caiaq-input.h" +#endif + +MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); +MODULE_DESCRIPTION("caiaq USB audio, version 1.1.0"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2}," + "{Native Instruments, Kore Controller}," + "{Native Instruments, Audio Kontrol 1}" + "{Native Instruments, Audio 8 DJ}}"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ +static int snd_card_used[SNDRV_CARDS]; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for the caiaq sound device"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for the caiaq soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable the caiaq soundcard."); + +enum { + SAMPLERATE_44100 = 0, + SAMPLERATE_48000 = 1, + SAMPLERATE_96000 = 2, + SAMPLERATE_192000 = 3, + SAMPLERATE_88200 = 4, + SAMPLERATE_INVALID = 0xff +}; + +enum { + DEPTH_NONE = 0, + DEPTH_16 = 1, + DEPTH_24 = 2, + DEPTH_32 = 3 +}; + +static struct usb_device_id snd_usb_id_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_RIGKONTROL2 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_KORECONTROLLER + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_AK1 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_AUDIO8DJ + }, + { /* terminator */ } +}; + +static void usb_ep1_command_reply_dispatch (struct urb* urb) +{ + int ret; + struct snd_usb_caiaqdev *dev = urb->context; + unsigned char *buf = urb->transfer_buffer; + + if (urb->status || !dev) { + log("received EP1 urb->status = %i\n", urb->status); + return; + } + + switch(buf[0]) { + case EP1_CMD_GET_DEVICE_INFO: + memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec)); + dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version); + debug("device spec (firmware %d): audio: %d in, %d out, " + "MIDI: %d in, %d out, data alignment %d\n", + dev->spec.fw_version, + dev->spec.num_analog_audio_in, + dev->spec.num_analog_audio_out, + dev->spec.num_midi_in, + dev->spec.num_midi_out, + dev->spec.data_alignment); + + dev->spec_received++; + wake_up(&dev->ep1_wait_queue); + break; + case EP1_CMD_AUDIO_PARAMS: + dev->audio_parm_answer = buf[1]; + wake_up(&dev->ep1_wait_queue); + break; + case EP1_CMD_MIDI_READ: + snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]); + break; + +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + case EP1_CMD_READ_ERP: + case EP1_CMD_READ_ANALOG: + case EP1_CMD_READ_IO: + snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length); + break; +#endif + } + + dev->ep1_in_urb.actual_length = 0; + ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC); + if (ret < 0) + log("unable to submit urb. OOM!?\n"); +} + +static int send_command (struct snd_usb_caiaqdev *dev, + unsigned char command, + const unsigned char *buffer, + int len) +{ + int actual_len; + struct usb_device *usb_dev = dev->chip.dev; + + if (!usb_dev) + return -EIO; + + if (len > EP1_BUFSIZE - 1) + len = EP1_BUFSIZE - 1; + + if (buffer && len > 0) + memcpy(dev->ep1_out_buf+1, buffer, len); + + dev->ep1_out_buf[0] = command; + return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1), + dev->ep1_out_buf, len+1, &actual_len, 200); +} + +int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev, + int rate, int depth, int bpp) +{ + int ret; + char tmp[5]; + + switch (rate) { + case 44100: tmp[0] = SAMPLERATE_44100; break; + case 48000: tmp[0] = SAMPLERATE_48000; break; + case 88200: tmp[0] = SAMPLERATE_88200; break; + case 96000: tmp[0] = SAMPLERATE_96000; break; + case 192000: tmp[0] = SAMPLERATE_192000; break; + default: return -EINVAL; + } + + switch (depth) { + case 16: tmp[1] = DEPTH_16; break; + case 24: tmp[1] = DEPTH_24; break; + default: return -EINVAL; + } + + tmp[2] = bpp & 0xff; + tmp[3] = bpp >> 8; + tmp[4] = 1; /* packets per microframe */ + + debug("setting audio params: %d Hz, %d bits, %d bpp\n", + rate, depth, bpp); + + dev->audio_parm_answer = -1; + ret = send_command(dev, EP1_CMD_AUDIO_PARAMS, tmp, sizeof(tmp)); + + if (ret) + return ret; + + if (!wait_event_timeout(dev->ep1_wait_queue, + dev->audio_parm_answer >= 0, HZ)) + return -EPIPE; + + if (dev->audio_parm_answer != 1) + debug("unable to set the device's audio params\n"); + + return dev->audio_parm_answer == 1 ? 0 : -EINVAL; +} + +int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, + int digital, int analog, int erp) +{ + char tmp[3] = { digital, analog, erp }; + return send_command(dev, EP1_CMD_AUTO_MSG, tmp, sizeof(tmp)); +} + +static void setup_card(struct snd_usb_caiaqdev *dev) +{ + int ret; + char val[3]; + + /* device-specific startup specials */ + switch (dev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2): + /* RigKontrol2 - display centered dash ('-') */ + val[0] = 0x00; + val[1] = 0x00; + val[2] = 0x01; + send_command(dev, EP1_CMD_WRITE_IO, val, 3); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + /* Audio Kontrol 1 - make USB-LED stop blinking */ + val[0] = 0x00; + send_command(dev, EP1_CMD_WRITE_IO, val, 1); + break; + } + + ret = snd_usb_caiaq_audio_init(dev); + if (ret < 0) + log("Unable to set up audio system (ret=%d)\n", ret); + + ret = snd_usb_caiaq_midi_init(dev); + if (ret < 0) + log("Unable to set up MIDI system (ret=%d)\n", ret); + +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + ret = snd_usb_caiaq_input_init(dev); + if (ret < 0) + log("Unable to set up input system (ret=%d)\n", ret); +#endif + + /* finally, register the card and all its sub-instances */ + ret = snd_card_register(dev->chip.card); + if (ret < 0) { + log("snd_card_register() returned %d\n", ret); + snd_card_free(dev->chip.card); + } +} + +static struct snd_card* create_card(struct usb_device* usb_dev) +{ + int devnum; + struct snd_card *card; + struct snd_usb_caiaqdev *dev; + + for (devnum = 0; devnum < SNDRV_CARDS; devnum++) + if (enable[devnum] && !snd_card_used[devnum]) + break; + + if (devnum >= SNDRV_CARDS) + return NULL; + + card = snd_card_new(index[devnum], id[devnum], THIS_MODULE, + sizeof(struct snd_usb_caiaqdev)); + if (!card) + return NULL; + + dev = caiaqdev(card); + dev->chip.dev = usb_dev; + dev->chip.card = card; + dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor, + usb_dev->descriptor.idProduct); + spin_lock_init(&dev->spinlock); + snd_card_set_dev(card, &usb_dev->dev); + + return card; +} + +static int init_card(struct snd_usb_caiaqdev *dev) +{ + char *c; + struct usb_device *usb_dev = dev->chip.dev; + struct snd_card *card = dev->chip.card; + int err, len; + + if (usb_set_interface(usb_dev, 0, 1) != 0) { + log("can't set alt interface.\n"); + return -EIO; + } + + usb_init_urb(&dev->ep1_in_urb); + usb_init_urb(&dev->midi_out_urb); + + usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev, + usb_rcvbulkpipe(usb_dev, 0x1), + dev->ep1_in_buf, EP1_BUFSIZE, + usb_ep1_command_reply_dispatch, dev); + + usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev, + usb_sndbulkpipe(usb_dev, 0x1), + dev->midi_out_buf, EP1_BUFSIZE, + snd_usb_caiaq_midi_output_done, dev); + + init_waitqueue_head(&dev->ep1_wait_queue); + init_waitqueue_head(&dev->prepare_wait_queue); + + if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0) + return -EIO; + + err = send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0); + if (err) + return err; + + if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ)) + return -ENODEV; + + usb_string(usb_dev, usb_dev->descriptor.iManufacturer, + dev->vendor_name, CAIAQ_USB_STR_LEN); + + usb_string(usb_dev, usb_dev->descriptor.iProduct, + dev->product_name, CAIAQ_USB_STR_LEN); + + usb_string(usb_dev, usb_dev->descriptor.iSerialNumber, + dev->serial, CAIAQ_USB_STR_LEN); + + /* terminate serial string at first white space occurence */ + c = strchr(dev->serial, ' '); + if (c) + *c = '\0'; + + strcpy(card->driver, MODNAME); + strcpy(card->shortname, dev->product_name); + + len = snprintf(card->longname, sizeof(card->longname), + "%s %s (serial %s, ", + dev->vendor_name, dev->product_name, dev->serial); + + if (len < sizeof(card->longname) - 2) + len += usb_make_path(usb_dev, card->longname + len, + sizeof(card->longname) - len); + + card->longname[len++] = ')'; + card->longname[len] = '\0'; + setup_card(dev); + return 0; +} + +static int snd_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + int ret; + struct snd_card *card; + struct usb_device *device = interface_to_usbdev(intf); + + card = create_card(device); + + if (!card) + return -ENOMEM; + + dev_set_drvdata(&intf->dev, card); + ret = init_card(caiaqdev(card)); + if (ret < 0) { + log("unable to init card! (ret=%d)\n", ret); + snd_card_free(card); + return ret; + } + + return 0; +} + +static void snd_disconnect(struct usb_interface *intf) +{ + struct snd_usb_caiaqdev *dev; + struct snd_card *card = dev_get_drvdata(&intf->dev); + + debug("snd_disconnect(%p)\n", intf); + + if (!card) + return; + + dev = caiaqdev(card); + snd_card_disconnect(card); + +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + snd_usb_caiaq_input_free(dev); +#endif + snd_usb_caiaq_audio_free(dev); + + usb_kill_urb(&dev->ep1_in_urb); + usb_kill_urb(&dev->midi_out_urb); + + snd_card_free(card); + usb_reset_device(interface_to_usbdev(intf)); +} + + +MODULE_DEVICE_TABLE(usb, snd_usb_id_table); +static struct usb_driver snd_usb_driver = { + .name = MODNAME, + .probe = snd_probe, + .disconnect = snd_disconnect, + .id_table = snd_usb_id_table, +}; + +static int __init snd_module_init(void) +{ + return usb_register(&snd_usb_driver); +} + +static void __exit snd_module_exit(void) +{ + usb_deregister(&snd_usb_driver); +} + +module_init(snd_module_init) +module_exit(snd_module_exit) + diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/caiaq-device.h new file mode 100644 index 00000000000..088d5ec241f --- /dev/null +++ b/sound/usb/caiaq/caiaq-device.h @@ -0,0 +1,116 @@ +#ifndef CAIAQ_DEVICE_H +#define CAIAQ_DEVICE_H + +#include "../usbaudio.h" + +#define USB_VID_NATIVEINSTRUMENTS 0x17cc + +#define USB_PID_RIGKONTROL2 0x1969 +#define USB_PID_KORECONTROLLER 0x4711 +#define USB_PID_AK1 0x0815 +#define USB_PID_AUDIO8DJ 0x1978 + +#define EP1_BUFSIZE 64 +#define CAIAQ_USB_STR_LEN 0xff +#define MAX_STREAMS 32 + +//#define SND_USB_CAIAQ_DEBUG + +#define MODNAME "snd-usb-caiaq" +#define log(x...) snd_printk(KERN_WARNING MODNAME" log: " x) + +#ifdef SND_USB_CAIAQ_DEBUG +#define debug(x...) snd_printk(KERN_WARNING MODNAME " debug: " x) +#else +#define debug(x...) do { } while(0) +#endif + +#define EP1_CMD_GET_DEVICE_INFO 0x1 +#define EP1_CMD_READ_ERP 0x2 +#define EP1_CMD_READ_ANALOG 0x3 +#define EP1_CMD_READ_IO 0x4 +#define EP1_CMD_WRITE_IO 0x5 +#define EP1_CMD_MIDI_READ 0x6 +#define EP1_CMD_MIDI_WRITE 0x7 +#define EP1_CMD_AUDIO_PARAMS 0x9 +#define EP1_CMD_AUTO_MSG 0xb + +struct caiaq_device_spec { + unsigned short fw_version; + unsigned char hw_subtype; + unsigned char num_erp; + unsigned char num_analog_in; + unsigned char num_digital_in; + unsigned char num_digital_out; + unsigned char num_analog_audio_out; + unsigned char num_analog_audio_in; + unsigned char num_digital_audio_out; + unsigned char num_digital_audio_in; + unsigned char num_midi_out; + unsigned char num_midi_in; + unsigned char data_alignment; +} __attribute__ ((packed)); + +struct snd_usb_caiaq_cb_info; + +struct snd_usb_caiaqdev { + struct snd_usb_audio chip; + + struct urb ep1_in_urb; + struct urb midi_out_urb; + struct urb **data_urbs_in; + struct urb **data_urbs_out; + struct snd_usb_caiaq_cb_info *data_cb_info; + + unsigned char ep1_in_buf[EP1_BUFSIZE]; + unsigned char ep1_out_buf[EP1_BUFSIZE]; + unsigned char midi_out_buf[EP1_BUFSIZE]; + + struct caiaq_device_spec spec; + spinlock_t spinlock; + wait_queue_head_t ep1_wait_queue; + wait_queue_head_t prepare_wait_queue; + int spec_received, audio_parm_answer; + + char vendor_name[CAIAQ_USB_STR_LEN]; + char product_name[CAIAQ_USB_STR_LEN]; + char serial[CAIAQ_USB_STR_LEN]; + + int n_streams, n_audio_in, n_audio_out; + int streaming, first_packet, output_running; + int audio_in_buf_pos[MAX_STREAMS]; + int audio_out_buf_pos[MAX_STREAMS]; + int period_in_count[MAX_STREAMS]; + int period_out_count[MAX_STREAMS]; + int input_panic, output_panic; + char *audio_in_buf, *audio_out_buf; + unsigned int samplerates; + + struct snd_pcm_substream *sub_playback[MAX_STREAMS]; + struct snd_pcm_substream *sub_capture[MAX_STREAMS]; + + /* Linux input */ +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + struct input_dev *input_dev; +#endif + + /* ALSA */ + struct snd_pcm *pcm; + struct snd_pcm_hardware pcm_info; + struct snd_rawmidi *rmidi; + struct snd_rawmidi_substream *midi_receive_substream; + struct snd_rawmidi_substream *midi_out_substream; +}; + +struct snd_usb_caiaq_cb_info { + struct snd_usb_caiaqdev *dev; + int index; +}; + +#define caiaqdev(c) ((struct snd_usb_caiaqdev*)(c)->private_data) + +int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev, int rate, int depth, int bbp); +int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, int digital, int analog, int erp); + + +#endif /* CAIAQ_DEVICE_H */ diff --git a/sound/usb/caiaq/caiaq-input.c b/sound/usb/caiaq/caiaq-input.c new file mode 100644 index 00000000000..3acd12db695 --- /dev/null +++ b/sound/usb/caiaq/caiaq-input.c @@ -0,0 +1,246 @@ +/* + * Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/input.h> +#include <linux/usb.h> +#include <linux/spinlock.h> +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/rawmidi.h> +#include <sound/pcm.h> +#include "caiaq-device.h" +#include "caiaq-input.h" + +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + +static unsigned char keycode_ak1[] = { KEY_C, KEY_B, KEY_A }; +static unsigned char keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4, + KEY_5, KEY_6, KEY_7 }; + +#define DEG90 (range/2) +#define DEG180 (range) +#define DEG270 (DEG90 + DEG180) +#define DEG360 (DEG180 * 2) +#define HIGH_PEAK (268) +#define LOW_PEAK (-7) + +/* some of these devices have endless rotation potentiometers + * built in which use two tapers, 90 degrees phase shifted. + * this algorithm decodes them to one single value, ranging + * from 0 to 999 */ +static unsigned int decode_erp(unsigned char a, unsigned char b) +{ + int weight_a, weight_b; + int pos_a, pos_b; + int ret; + int range = HIGH_PEAK - LOW_PEAK; + int mid_value = (HIGH_PEAK + LOW_PEAK) / 2; + + weight_b = abs(mid_value-a) - (range/2 - 100)/2; + + if (weight_b < 0) + weight_b = 0; + + if (weight_b > 100) + weight_b = 100; + + weight_a = 100 - weight_b; + + if (a < mid_value) { + /* 0..90 and 270..360 degrees */ + pos_b = b - LOW_PEAK + DEG270; + if (pos_b >= DEG360) + pos_b -= DEG360; + } else + /* 90..270 degrees */ + pos_b = HIGH_PEAK - b + DEG90; + + + if (b > mid_value) + /* 0..180 degrees */ + pos_a = a - LOW_PEAK; + else + /* 180..360 degrees */ + pos_a = HIGH_PEAK - a + DEG180; + + /* interpolate both slider values, depending on weight factors */ + /* 0..99 x DEG360 */ + ret = pos_a * weight_a + pos_b * weight_b; + + /* normalize to 0..999 */ + ret *= 10; + ret /= DEG360; + + if (ret < 0) + ret += 1000; + + if (ret >= 1000) + ret -= 1000; + + return ret; +} + +#undef DEG90 +#undef DEG180 +#undef DEG270 +#undef DEG360 +#undef HIGH_PEAK +#undef LOW_PEAK + + +static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev, + const char *buf, unsigned int len) +{ + switch(dev->input_dev->id.product) { + case USB_PID_RIGKONTROL2: + input_report_abs(dev->input_dev, ABS_X, (buf[4] << 8) |buf[5]); + input_report_abs(dev->input_dev, ABS_Y, (buf[0] << 8) |buf[1]); + input_report_abs(dev->input_dev, ABS_Z, (buf[2] << 8) |buf[3]); + input_sync(dev->input_dev); + break; + } +} + +static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev, + const char *buf, unsigned int len) +{ + int i; + + switch(dev->input_dev->id.product) { + case USB_PID_AK1: + i = decode_erp(buf[0], buf[1]); + input_report_abs(dev->input_dev, ABS_X, i); + input_sync(dev->input_dev); + break; + } +} + +static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev, + char *buf, unsigned int len) +{ + int i; + unsigned char *keycode = dev->input_dev->keycode; + + if (!keycode) + return; + + if (dev->input_dev->id.product == USB_PID_RIGKONTROL2) + for (i=0; i<len; i++) + buf[i] = ~buf[i]; + + for (i=0; (i<dev->input_dev->keycodemax) && (i < len); i++) + input_report_key(dev->input_dev, keycode[i], + buf[i/8] & (1 << (i%8))); + + input_sync(dev->input_dev); +} + +void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev, + char *buf, + unsigned int len) +{ + if (!dev->input_dev || (len < 1)) + return; + + switch (buf[0]) { + case EP1_CMD_READ_ANALOG: + snd_caiaq_input_read_analog(dev, buf+1, len-1); + break; + case EP1_CMD_READ_ERP: + snd_caiaq_input_read_erp(dev, buf+1, len-1); + break; + case EP1_CMD_READ_IO: + snd_caiaq_input_read_io(dev, buf+1, len-1); + break; + } +} + +int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev) +{ + struct usb_device *usb_dev = dev->chip.dev; + struct input_dev *input; + int i, ret; + + input = input_allocate_device(); + if (!input) + return -ENOMEM; + + input->name = dev->product_name; + input->id.bustype = BUS_USB; + input->id.vendor = usb_dev->descriptor.idVendor; + input->id.product = usb_dev->descriptor.idProduct; + input->id.version = usb_dev->descriptor.bcdDevice; + + switch (dev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2): + input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); + input->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_Z); + input->keycode = keycode_rk2; + input->keycodesize = sizeof(char); + input->keycodemax = ARRAY_SIZE(keycode_rk2); + for (i=0; i<ARRAY_SIZE(keycode_rk2); i++) + set_bit(keycode_rk2[i], input->keybit); + + input_set_abs_params(input, ABS_X, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10); + snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); + input->absbit[0] = BIT(ABS_X); + input->keycode = keycode_ak1; + input->keycodesize = sizeof(char); + input->keycodemax = ARRAY_SIZE(keycode_ak1); + for (i=0; i<ARRAY_SIZE(keycode_ak1); i++) + set_bit(keycode_ak1[i], input->keybit); + + input_set_abs_params(input, ABS_X, 0, 999, 0, 10); + snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5); + break; + default: + /* no input methods supported on this device */ + input_free_device(input); + return 0; + } + + ret = input_register_device(input); + if (ret < 0) { + input_free_device(input); + return ret; + } + + dev->input_dev = input; + return 0; +} + +void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev) +{ + if (!dev || !dev->input_dev) + return; + + input_unregister_device(dev->input_dev); + input_free_device(dev->input_dev); + dev->input_dev = NULL; +} + +#endif /* CONFIG_SND_USB_CAIAQ_INPUT */ + diff --git a/sound/usb/caiaq/caiaq-input.h b/sound/usb/caiaq/caiaq-input.h new file mode 100644 index 00000000000..ced53557786 --- /dev/null +++ b/sound/usb/caiaq/caiaq-input.h @@ -0,0 +1,8 @@ +#ifndef CAIAQ_INPUT_H +#define CAIAQ_INPUT_H + +void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev, char *buf, unsigned int len); +int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev); +void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev); + +#endif diff --git a/sound/usb/caiaq/caiaq-midi.c b/sound/usb/caiaq/caiaq-midi.c new file mode 100644 index 00000000000..793ca20ce34 --- /dev/null +++ b/sound/usb/caiaq/caiaq-midi.c @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2006,2007 Daniel Mack + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/usb.h> +#include <linux/input.h> +#include <linux/spinlock.h> +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/rawmidi.h> +#include <sound/pcm.h> + +#include "caiaq-device.h" +#include "caiaq-midi.h" + + +static int snd_usb_caiaq_midi_input_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int snd_usb_caiaq_midi_input_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void snd_usb_caiaq_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct snd_usb_caiaqdev *dev = substream->rmidi->private_data; + + if (!dev) + return; + + dev->midi_receive_substream = up ? substream : NULL; +} + + +static int snd_usb_caiaq_midi_output_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int snd_usb_caiaq_midi_output_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *dev, + struct snd_rawmidi_substream *substream) +{ + int len, ret; + + dev->midi_out_buf[0] = EP1_CMD_MIDI_WRITE; + dev->midi_out_buf[1] = 0; /* port */ + len = snd_rawmidi_transmit_peek(substream, dev->midi_out_buf+3, EP1_BUFSIZE-3); + + if (len <= 0) + return; + + dev->midi_out_buf[2] = len; + dev->midi_out_urb.transfer_buffer_length = len+3; + + ret = usb_submit_urb(&dev->midi_out_urb, GFP_ATOMIC); + if (ret < 0) + log("snd_usb_caiaq_midi_send(%p): usb_submit_urb() failed, %d\n", + substream, ret); +} + +static void snd_usb_caiaq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct snd_usb_caiaqdev *dev = substream->rmidi->private_data; + + if (dev->midi_out_substream != NULL) + return; + + if (!up) { + dev->midi_out_substream = NULL; + return; + } + + dev->midi_out_substream = substream; + snd_usb_caiaq_midi_send(dev, substream); +} + + +static struct snd_rawmidi_ops snd_usb_caiaq_midi_output = +{ + .open = snd_usb_caiaq_midi_output_open, + .close = snd_usb_caiaq_midi_output_close, + .trigger = snd_usb_caiaq_midi_output_trigger, +}; + +static struct snd_rawmidi_ops snd_usb_caiaq_midi_input = +{ + .open = snd_usb_caiaq_midi_input_open, + .close = snd_usb_caiaq_midi_input_close, + .trigger = snd_usb_caiaq_midi_input_trigger, +}; + +void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev, + int port, const char *buf, int len) +{ + if (!dev->midi_receive_substream) + return; + + snd_rawmidi_receive(dev->midi_receive_substream, buf, len); +} + +int __devinit snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *device) +{ + int ret; + struct snd_rawmidi *rmidi; + + ret = snd_rawmidi_new(device->chip.card, device->product_name, 0, + device->spec.num_midi_out, + device->spec.num_midi_in, + &rmidi); + + if (ret < 0) + return ret; + + strcpy(rmidi->name, device->product_name); + + rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->private_data = device; + + if (device->spec.num_midi_out > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &snd_usb_caiaq_midi_output); + } + + if (device->spec.num_midi_in > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &snd_usb_caiaq_midi_input); + } + + device->rmidi = rmidi; + + return 0; +} + +void snd_usb_caiaq_midi_output_done(struct urb* urb) +{ + struct snd_usb_caiaqdev *dev = urb->context; + char *buf = urb->transfer_buffer; + + if (urb->status != 0) + return; + + if (!dev->midi_out_substream) + return; + + snd_rawmidi_transmit_ack(dev->midi_out_substream, buf[2]); + dev->midi_out_substream = NULL; + snd_usb_caiaq_midi_send(dev, dev->midi_out_substream); +} + diff --git a/sound/usb/caiaq/caiaq-midi.h b/sound/usb/caiaq/caiaq-midi.h new file mode 100644 index 00000000000..9d16db027fc --- /dev/null +++ b/sound/usb/caiaq/caiaq-midi.h @@ -0,0 +1,8 @@ +#ifndef CAIAQ_MIDI_H +#define CAIAQ_MIDI_H + +int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *dev); +void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev, int port, const char *buf, int len); +void snd_usb_caiaq_midi_output_done(struct urb* urb); + +#endif /* CAIAQ_MIDI_H */ |