30 static inline unsigned char mpu401_read(struct snd_emu10k1 *emu,  in mpu401_read()  argument
33 	if (emu->audigy)  in mpu401_read()
34 		return (unsigned char)snd_emu10k1_ptr_read(emu, mpu->port + idx, 0);  in mpu401_read()
36 		return inb(emu->port + mpu->port + idx);  in mpu401_read()
39 static inline void mpu401_write(struct snd_emu10k1 *emu,  in mpu401_write()  argument
42 	if (emu->audigy)  in mpu401_write()
43 		snd_emu10k1_ptr_write(emu, mpu->port + idx, 0, data);  in mpu401_write()
45 		outb(data, emu->port + mpu->port + idx);  in mpu401_write()
48 #define mpu401_write_data(emu, mpu, data)	mpu401_write(emu, mpu, data, 0)  argument
49 #define mpu401_write_cmd(emu, mpu, data)	mpu401_write(emu, mpu, data, 1)  argument
50 #define mpu401_read_data(emu, mpu)		mpu401_read(emu, mpu, 0)  argument
51 #define mpu401_read_stat(emu, mpu)		mpu401_read(emu, mpu, 1)  argument
53 #define mpu401_input_avail(emu,mpu)	(!(mpu401_read_stat(emu,mpu) & 0x80))  argument
54 #define mpu401_output_ready(emu,mpu)	(!(mpu401_read_stat(emu,mpu) & 0x40))  argument
60 static void mpu401_clear_rx(struct snd_emu10k1 *emu, struct snd_emu10k1_midi *mpu)  in mpu401_clear_rx()  argument
63 	for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)  in mpu401_clear_rx()
64 		mpu401_read_data(emu, mpu);  in mpu401_clear_rx()
67 		dev_err(emu->card->dev,  in mpu401_clear_rx()
69 			mpu401_read_stat(emu, mpu));  in mpu401_clear_rx()
77 static void do_emu10k1_midi_interrupt(struct snd_emu10k1 *emu, struct snd_emu10k1_midi *midi, unsig…  in do_emu10k1_midi_interrupt()  argument
82 		snd_emu10k1_intr_disable(emu, midi->tx_enable | midi->rx_enable);  in do_emu10k1_midi_interrupt()
87 	if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {  in do_emu10k1_midi_interrupt()
89 			mpu401_clear_rx(emu, midi);  in do_emu10k1_midi_interrupt()
91 			byte = mpu401_read_data(emu, midi);  in do_emu10k1_midi_interrupt()
99 	if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {  in do_emu10k1_midi_interrupt()
102 			mpu401_write_data(emu, midi, byte);  in do_emu10k1_midi_interrupt()
104 			snd_emu10k1_intr_disable(emu, midi->tx_enable);  in do_emu10k1_midi_interrupt()
110 static void snd_emu10k1_midi_interrupt(struct snd_emu10k1 *emu, unsigned int status)  in snd_emu10k1_midi_interrupt()  argument
112 	do_emu10k1_midi_interrupt(emu, &emu->midi, status);  in snd_emu10k1_midi_interrupt()
115 static void snd_emu10k1_midi_interrupt2(struct snd_emu10k1 *emu, unsigned int status)  in snd_emu10k1_midi_interrupt2()  argument
117 	do_emu10k1_midi_interrupt(emu, &emu->midi2, status);  in snd_emu10k1_midi_interrupt2()
120 static int snd_emu10k1_midi_cmd(struct snd_emu10k1 * emu, struct snd_emu10k1_midi *midi, unsigned c…  in snd_emu10k1_midi_cmd()  argument
126 	mpu401_write_data(emu, midi, 0x00);  in snd_emu10k1_midi_cmd()
129 	mpu401_write_cmd(emu, midi, cmd);  in snd_emu10k1_midi_cmd()
134 			if (mpu401_input_avail(emu, midi)) {  in snd_emu10k1_midi_cmd()
135 				if (mpu401_read_data(emu, midi) == MPU401_ACK)  in snd_emu10k1_midi_cmd()
139 		if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)  in snd_emu10k1_midi_cmd()
146 		dev_err(emu->card->dev,  in snd_emu10k1_midi_cmd()
148 			   cmd, emu->port,  in snd_emu10k1_midi_cmd()
149 			   mpu401_read_stat(emu, midi),  in snd_emu10k1_midi_cmd()
150 			   mpu401_read_data(emu, midi));  in snd_emu10k1_midi_cmd()
158 	struct snd_emu10k1 *emu;  in snd_emu10k1_midi_input_open()  local
162 	emu = midi->emu;  in snd_emu10k1_midi_input_open()
163 	if (snd_BUG_ON(!emu))  in snd_emu10k1_midi_input_open()
170 		if (snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 1))  in snd_emu10k1_midi_input_open()
172 		if (snd_emu10k1_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))  in snd_emu10k1_midi_input_open()
185 	struct snd_emu10k1 *emu;  in snd_emu10k1_midi_output_open()  local
189 	emu = midi->emu;  in snd_emu10k1_midi_output_open()
190 	if (snd_BUG_ON(!emu))  in snd_emu10k1_midi_output_open()
197 		if (snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 1))  in snd_emu10k1_midi_output_open()
199 		if (snd_emu10k1_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))  in snd_emu10k1_midi_output_open()
212 	struct snd_emu10k1 *emu;  in snd_emu10k1_midi_input_close()  local
217 	emu = midi->emu;  in snd_emu10k1_midi_input_close()
218 	if (snd_BUG_ON(!emu))  in snd_emu10k1_midi_input_close()
221 	snd_emu10k1_intr_disable(emu, midi->rx_enable);  in snd_emu10k1_midi_input_close()
226 		err = snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);  in snd_emu10k1_midi_input_close()
235 	struct snd_emu10k1 *emu;  in snd_emu10k1_midi_output_close()  local
240 	emu = midi->emu;  in snd_emu10k1_midi_output_close()
241 	if (snd_BUG_ON(!emu))  in snd_emu10k1_midi_output_close()
244 	snd_emu10k1_intr_disable(emu, midi->tx_enable);  in snd_emu10k1_midi_output_close()
249 		err = snd_emu10k1_midi_cmd(emu, midi, MPU401_RESET, 0);  in snd_emu10k1_midi_output_close()
258 	struct snd_emu10k1 *emu;  in snd_emu10k1_midi_input_trigger()  local
260 	emu = midi->emu;  in snd_emu10k1_midi_input_trigger()
261 	if (snd_BUG_ON(!emu))  in snd_emu10k1_midi_input_trigger()
265 		snd_emu10k1_intr_enable(emu, midi->rx_enable);  in snd_emu10k1_midi_input_trigger()
267 		snd_emu10k1_intr_disable(emu, midi->rx_enable);  in snd_emu10k1_midi_input_trigger()
272 	struct snd_emu10k1 *emu;  in snd_emu10k1_midi_output_trigger()  local
276 	emu = midi->emu;  in snd_emu10k1_midi_output_trigger()
277 	if (snd_BUG_ON(!emu))  in snd_emu10k1_midi_output_trigger()
287 			if (mpu401_output_ready(emu, midi)) {  in snd_emu10k1_midi_output_trigger()
294 				mpu401_write_data(emu, midi, byte);  in snd_emu10k1_midi_output_trigger()
301 		snd_emu10k1_intr_enable(emu, midi->tx_enable);  in snd_emu10k1_midi_output_trigger()
303 		snd_emu10k1_intr_disable(emu, midi->tx_enable);  in snd_emu10k1_midi_output_trigger()
332 static int emu10k1_midi_init(struct snd_emu10k1 *emu, struct snd_emu10k1_midi *midi, int device, ch…  in emu10k1_midi_init()  argument
337 	if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)  in emu10k1_midi_init()
339 	midi->emu = emu;  in emu10k1_midi_init()
355 int snd_emu10k1_midi(struct snd_emu10k1 *emu)  in snd_emu10k1_midi()  argument
357 	struct snd_emu10k1_midi *midi = &emu->midi;  in snd_emu10k1_midi()
360 	if ((err = emu10k1_midi_init(emu, midi, 0, "EMU10K1 MPU-401 (UART)")) < 0)  in snd_emu10k1_midi()
372 int snd_emu10k1_audigy_midi(struct snd_emu10k1 *emu)  in snd_emu10k1_audigy_midi()  argument
377 	midi = &emu->midi;  in snd_emu10k1_audigy_midi()
378 	if ((err = emu10k1_midi_init(emu, midi, 0, "Audigy MPU-401 (UART)")) < 0)  in snd_emu10k1_audigy_midi()
388 	midi = &emu->midi2;  in snd_emu10k1_audigy_midi()
389 	if ((err = emu10k1_midi_init(emu, midi, 1, "Audigy MPU-401 #2")) < 0)  in snd_emu10k1_audigy_midi()