44 int snd_sbdsp_command(struct snd_sb *chip, unsigned char val)  in snd_sbdsp_command()  argument
51 		if ((inb(SBP(chip, STATUS)) & 0x80) == 0) {  in snd_sbdsp_command()
52 			outb(val, SBP(chip, COMMAND));  in snd_sbdsp_command()
55 	snd_printd("%s [0x%lx]: timeout (0x%x)\n", __func__, chip->port, val);  in snd_sbdsp_command()
59 int snd_sbdsp_get_byte(struct snd_sb *chip)  in snd_sbdsp_get_byte()  argument
64 		if (inb(SBP(chip, DATA_AVAIL)) & 0x80) {  in snd_sbdsp_get_byte()
65 			val = inb(SBP(chip, READ));  in snd_sbdsp_get_byte()
72 	snd_printd("%s [0x%lx]: timeout\n", __func__, chip->port);  in snd_sbdsp_get_byte()
76 int snd_sbdsp_reset(struct snd_sb *chip)  in snd_sbdsp_reset()  argument
80 	outb(1, SBP(chip, RESET));  in snd_sbdsp_reset()
82 	outb(0, SBP(chip, RESET));  in snd_sbdsp_reset()
85 		if (inb(SBP(chip, DATA_AVAIL)) & 0x80) {  in snd_sbdsp_reset()
86 			if (inb(SBP(chip, READ)) == 0xaa)  in snd_sbdsp_reset()
91 	snd_printdd("%s [0x%lx] failed...\n", __func__, chip->port);  in snd_sbdsp_reset()
95 static int snd_sbdsp_version(struct snd_sb * chip)  in snd_sbdsp_version()  argument
99 	snd_sbdsp_command(chip, SB_DSP_GET_VERSION);  in snd_sbdsp_version()
100 	result = (short) snd_sbdsp_get_byte(chip) << 8;  in snd_sbdsp_version()
101 	result |= (short) snd_sbdsp_get_byte(chip);  in snd_sbdsp_version()
105 static int snd_sbdsp_probe(struct snd_sb * chip)  in snd_sbdsp_probe()  argument
116 	spin_lock_irqsave(&chip->reg_lock, flags);  in snd_sbdsp_probe()
117 	if (snd_sbdsp_reset(chip) < 0) {  in snd_sbdsp_probe()
118 		spin_unlock_irqrestore(&chip->reg_lock, flags);  in snd_sbdsp_probe()
121 	version = snd_sbdsp_version(chip);  in snd_sbdsp_probe()
123 		spin_unlock_irqrestore(&chip->reg_lock, flags);  in snd_sbdsp_probe()
126 	spin_unlock_irqrestore(&chip->reg_lock, flags);  in snd_sbdsp_probe()
130 		    chip->port, major, minor);  in snd_sbdsp_probe()
132 	switch (chip->hardware) {  in snd_sbdsp_probe()
136 			chip->hardware = SB_HW_10;  in snd_sbdsp_probe()
141 				chip->hardware = SB_HW_201;  in snd_sbdsp_probe()
144 				chip->hardware = SB_HW_20;  in snd_sbdsp_probe()
149 			chip->hardware = SB_HW_PRO;  in snd_sbdsp_probe()
153 			chip->hardware = SB_HW_16;  in snd_sbdsp_probe()
158 				   chip->port, major, minor);  in snd_sbdsp_probe()
180 	sprintf(chip->name, "Sound Blaster %s", str);  in snd_sbdsp_probe()
181 	chip->version = (major << 8) | minor;  in snd_sbdsp_probe()
185 static int snd_sbdsp_free(struct snd_sb *chip)  in snd_sbdsp_free()  argument
187 	release_and_free_resource(chip->res_port);  in snd_sbdsp_free()
188 	if (chip->irq >= 0)  in snd_sbdsp_free()
189 		free_irq(chip->irq, (void *) chip);  in snd_sbdsp_free()
191 	if (chip->dma8 >= 0) {  in snd_sbdsp_free()
192 		disable_dma(chip->dma8);  in snd_sbdsp_free()
193 		free_dma(chip->dma8);  in snd_sbdsp_free()
195 	if (chip->dma16 >= 0 && chip->dma16 != chip->dma8) {  in snd_sbdsp_free()
196 		disable_dma(chip->dma16);  in snd_sbdsp_free()
197 		free_dma(chip->dma16);  in snd_sbdsp_free()
200 	kfree(chip);  in snd_sbdsp_free()
206 	struct snd_sb *chip = device->device_data;  in snd_sbdsp_dev_free()  local
207 	return snd_sbdsp_free(chip);  in snd_sbdsp_dev_free()
219 	struct snd_sb *chip;  in snd_sbdsp_create()  local
228 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);  in snd_sbdsp_create()
229 	if (chip == NULL)  in snd_sbdsp_create()
231 	spin_lock_init(&chip->reg_lock);  in snd_sbdsp_create()
232 	spin_lock_init(&chip->open_lock);  in snd_sbdsp_create()
233 	spin_lock_init(&chip->midi_input_lock);  in snd_sbdsp_create()
234 	spin_lock_init(&chip->mixer_lock);  in snd_sbdsp_create()
235 	chip->irq = -1;  in snd_sbdsp_create()
236 	chip->dma8 = -1;  in snd_sbdsp_create()
237 	chip->dma16 = -1;  in snd_sbdsp_create()
238 	chip->port = port;  in snd_sbdsp_create()
244 			"SoundBlaster", (void *) chip)) {  in snd_sbdsp_create()
246 		snd_sbdsp_free(chip);  in snd_sbdsp_create()
249 	chip->irq = irq;  in snd_sbdsp_create()
254 	if ((chip->res_port = request_region(port, 16, "SoundBlaster")) == NULL) {  in snd_sbdsp_create()
256 		snd_sbdsp_free(chip);  in snd_sbdsp_create()
263 		snd_sbdsp_free(chip);  in snd_sbdsp_create()
266 	chip->dma8 = dma8;  in snd_sbdsp_create()
273 			snd_sbdsp_free(chip);  in snd_sbdsp_create()
277 	chip->dma16 = dma16;  in snd_sbdsp_create()
281 	chip->card = card;  in snd_sbdsp_create()
282 	chip->hardware = hardware;  in snd_sbdsp_create()
283 	if ((err = snd_sbdsp_probe(chip)) < 0) {  in snd_sbdsp_create()
284 		snd_sbdsp_free(chip);  in snd_sbdsp_create()
287 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {  in snd_sbdsp_create()
288 		snd_sbdsp_free(chip);  in snd_sbdsp_create()
291 	*r_chip = chip;  in snd_sbdsp_create()