emumpu401.c (c1f3ee120bb61045b1c0a3ead620d1d65af47130) emumpu401.c (da3cec35dd3c31d8706db4bf379372ce70d92118)
1/*
2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * Routines for control of EMU10K1 MPU-401 in UART mode
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

--- 143 unchanged lines hidden (view full) ---

152
153static int snd_emu10k1_midi_input_open(struct snd_rawmidi_substream *substream)
154{
155 struct snd_emu10k1 *emu;
156 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
157 unsigned long flags;
158
159 emu = midi->emu;
1/*
2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * Routines for control of EMU10K1 MPU-401 in UART mode
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

--- 143 unchanged lines hidden (view full) ---

152
153static int snd_emu10k1_midi_input_open(struct snd_rawmidi_substream *substream)
154{
155 struct snd_emu10k1 *emu;
156 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
157 unsigned long flags;
158
159 emu = midi->emu;
160 snd_assert(emu, return -ENXIO);
160 if (snd_BUG_ON(!emu))
161 return -ENXIO;
161 spin_lock_irqsave(&midi->open_lock, flags);
162 midi->midi_mode |= EMU10K1_MIDI_MODE_INPUT;
163 midi->substream_input = substream;
164 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_OUTPUT)) {
165 spin_unlock_irqrestore(&midi->open_lock, flags);
166 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 1))
167 goto error_out;
168 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))

--- 9 unchanged lines hidden (view full) ---

178
179static int snd_emu10k1_midi_output_open(struct snd_rawmidi_substream *substream)
180{
181 struct snd_emu10k1 *emu;
182 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
183 unsigned long flags;
184
185 emu = midi->emu;
162 spin_lock_irqsave(&midi->open_lock, flags);
163 midi->midi_mode |= EMU10K1_MIDI_MODE_INPUT;
164 midi->substream_input = substream;
165 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_OUTPUT)) {
166 spin_unlock_irqrestore(&midi->open_lock, flags);
167 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 1))
168 goto error_out;
169 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))

--- 9 unchanged lines hidden (view full) ---

179
180static int snd_emu10k1_midi_output_open(struct snd_rawmidi_substream *substream)
181{
182 struct snd_emu10k1 *emu;
183 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
184 unsigned long flags;
185
186 emu = midi->emu;
186 snd_assert(emu, return -ENXIO);
187 if (snd_BUG_ON(!emu))
188 return -ENXIO;
187 spin_lock_irqsave(&midi->open_lock, flags);
188 midi->midi_mode |= EMU10K1_MIDI_MODE_OUTPUT;
189 midi->substream_output = substream;
190 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_INPUT)) {
191 spin_unlock_irqrestore(&midi->open_lock, flags);
192 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 1))
193 goto error_out;
194 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))

--- 10 unchanged lines hidden (view full) ---

205static int snd_emu10k1_midi_input_close(struct snd_rawmidi_substream *substream)
206{
207 struct snd_emu10k1 *emu;
208 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
209 unsigned long flags;
210 int err = 0;
211
212 emu = midi->emu;
189 spin_lock_irqsave(&midi->open_lock, flags);
190 midi->midi_mode |= EMU10K1_MIDI_MODE_OUTPUT;
191 midi->substream_output = substream;
192 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_INPUT)) {
193 spin_unlock_irqrestore(&midi->open_lock, flags);
194 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 1))
195 goto error_out;
196 if (snd_emu10k1_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))

--- 10 unchanged lines hidden (view full) ---

207static int snd_emu10k1_midi_input_close(struct snd_rawmidi_substream *substream)
208{
209 struct snd_emu10k1 *emu;
210 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
211 unsigned long flags;
212 int err = 0;
213
214 emu = midi->emu;
213 snd_assert(emu, return -ENXIO);
215 if (snd_BUG_ON(!emu))
216 return -ENXIO;
214 spin_lock_irqsave(&midi->open_lock, flags);
215 snd_emu10k1_intr_disable(emu, midi->rx_enable);
216 midi->midi_mode &= ~EMU10K1_MIDI_MODE_INPUT;
217 midi->substream_input = NULL;
218 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_OUTPUT)) {
219 spin_unlock_irqrestore(&midi->open_lock, flags);
220 err = snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);
221 } else {

--- 5 unchanged lines hidden (view full) ---

227static int snd_emu10k1_midi_output_close(struct snd_rawmidi_substream *substream)
228{
229 struct snd_emu10k1 *emu;
230 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
231 unsigned long flags;
232 int err = 0;
233
234 emu = midi->emu;
217 spin_lock_irqsave(&midi->open_lock, flags);
218 snd_emu10k1_intr_disable(emu, midi->rx_enable);
219 midi->midi_mode &= ~EMU10K1_MIDI_MODE_INPUT;
220 midi->substream_input = NULL;
221 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_OUTPUT)) {
222 spin_unlock_irqrestore(&midi->open_lock, flags);
223 err = snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);
224 } else {

--- 5 unchanged lines hidden (view full) ---

230static int snd_emu10k1_midi_output_close(struct snd_rawmidi_substream *substream)
231{
232 struct snd_emu10k1 *emu;
233 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
234 unsigned long flags;
235 int err = 0;
236
237 emu = midi->emu;
235 snd_assert(emu, return -ENXIO);
238 if (snd_BUG_ON(!emu))
239 return -ENXIO;
236 spin_lock_irqsave(&midi->open_lock, flags);
237 snd_emu10k1_intr_disable(emu, midi->tx_enable);
238 midi->midi_mode &= ~EMU10K1_MIDI_MODE_OUTPUT;
239 midi->substream_output = NULL;
240 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_INPUT)) {
241 spin_unlock_irqrestore(&midi->open_lock, flags);
242 err = snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);
243 } else {
244 spin_unlock_irqrestore(&midi->open_lock, flags);
245 }
246 return err;
247}
248
249static void snd_emu10k1_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
250{
251 struct snd_emu10k1 *emu;
252 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
253 emu = midi->emu;
240 spin_lock_irqsave(&midi->open_lock, flags);
241 snd_emu10k1_intr_disable(emu, midi->tx_enable);
242 midi->midi_mode &= ~EMU10K1_MIDI_MODE_OUTPUT;
243 midi->substream_output = NULL;
244 if (!(midi->midi_mode & EMU10K1_MIDI_MODE_INPUT)) {
245 spin_unlock_irqrestore(&midi->open_lock, flags);
246 err = snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);
247 } else {
248 spin_unlock_irqrestore(&midi->open_lock, flags);
249 }
250 return err;
251}
252
253static void snd_emu10k1_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
254{
255 struct snd_emu10k1 *emu;
256 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
257 emu = midi->emu;
254 snd_assert(emu, return);
258 if (snd_BUG_ON(!emu))
259 return;
255
256 if (up)
257 snd_emu10k1_intr_enable(emu, midi->rx_enable);
258 else
259 snd_emu10k1_intr_disable(emu, midi->rx_enable);
260}
261
262static void snd_emu10k1_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
263{
264 struct snd_emu10k1 *emu;
265 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
266 unsigned long flags;
267
268 emu = midi->emu;
260
261 if (up)
262 snd_emu10k1_intr_enable(emu, midi->rx_enable);
263 else
264 snd_emu10k1_intr_disable(emu, midi->rx_enable);
265}
266
267static void snd_emu10k1_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
268{
269 struct snd_emu10k1 *emu;
270 struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
271 unsigned long flags;
272
273 emu = midi->emu;
269 snd_assert(emu, return);
274 if (snd_BUG_ON(!emu))
275 return;
270
271 if (up) {
272 int max = 4;
273 unsigned char byte;
274
275 /* try to send some amount of bytes here before interrupts */
276 spin_lock_irqsave(&midi->output_lock, flags);
277 while (max > 0) {

--- 113 unchanged lines hidden --- 		276
277 if (up) {
278 int max = 4;
279 unsigned char byte;
280
281 /* try to send some amount of bytes here before interrupts */
282 spin_lock_irqsave(&midi->output_lock, flags);
283 while (max > 0) {

--- 113 unchanged lines hidden ---