1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Driver for Gravis UltraSound MAX soundcard
22 MODULE_DESCRIPTION("Gravis UltraSound MAX");
25 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
32 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
33 				/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
34 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
35 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
38 MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
40 MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
42 MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
44 MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
46 MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
48 MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
50 MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
52 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver."…
54 MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
56 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
74 		dev_dbg(gus->card->dev, "[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);  in snd_gusmax_detect()
75 		return -ENODEV;  in snd_gusmax_detect()
82 		dev_dbg(gus->card->dev, "[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);  in snd_gusmax_detect()
83 		return -ENODEV;  in snd_gusmax_detect()
92 	int loop, max = 5;  in snd_gusmax_interrupt()  local
97 		if (inb(maxcard->gus_status_reg)) {  in snd_gusmax_interrupt()
99 			snd_gus_interrupt(irq, maxcard->gus);  in snd_gusmax_interrupt()
102 		if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */  in snd_gusmax_interrupt()
104 			snd_wss_interrupt(irq, maxcard->wss);  in snd_gusmax_interrupt()
107 	} while (loop && --max > 0);  in snd_gusmax_interrupt()
114 	gus->equal_irq = 1;  in snd_gusmax_init()
115 	gus->codec_flag = 1;  in snd_gusmax_init()
116 	gus->joystick_dac = joystick_dac[dev];  in snd_gusmax_init()
118 	gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;  in snd_gusmax_init()
119 	if (gus->gf1.dma1 > 3)  in snd_gusmax_init()
120 		gus->max_cntrl_val |= 0x10;  in snd_gusmax_init()
121 	if (gus->gf1.dma2 > 3)  in snd_gusmax_init()
122 		gus->max_cntrl_val |= 0x20;  in snd_gusmax_init()
123 	gus->max_cntrl_val |= 0x40;  in snd_gusmax_init()
124 	outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));  in snd_gusmax_init()
129 	struct snd_card *card = chip->card;  in snd_gusmax_mixer()
187 	static const int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};  in snd_gusmax_probe()
188 	static const int possible_dmas[] = {5, 6, 7, 1, 3, -1};  in snd_gusmax_probe()
199 	maxcard = card->private_data;  in snd_gusmax_probe()
200 	maxcard->card = card;  in snd_gusmax_probe()
201 	maxcard->irq = -1;  in snd_gusmax_probe()
208 			return -EBUSY;  in snd_gusmax_probe()
216 			return -EBUSY;  in snd_gusmax_probe()
224 			return -EBUSY;  in snd_gusmax_probe()
231 				     -xirq, xdma1, xdma2,  in snd_gusmax_probe()
243 					     -xirq, xdma1, xdma2,  in snd_gusmax_probe()
260 	maxcard->gus_status_reg = gus->gf1.reg_irqstat;  in snd_gusmax_probe()
261 	maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;  in snd_gusmax_probe()
267 	if (!gus->max_flag) {  in snd_gusmax_probe()
268 		dev_err(pdev, "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);  in snd_gusmax_probe()
269 		return -ENODEV;  in snd_gusmax_probe()
272 	if (devm_request_irq(card->dev, xirq, snd_gusmax_interrupt, 0,  in snd_gusmax_probe()
273 			     "GUS MAX", (void *)maxcard)) {  in snd_gusmax_probe()
275 		return -EBUSY;  in snd_gusmax_probe()
277 	maxcard->irq = xirq;  in snd_gusmax_probe()
278 	card->sync_irq = maxcard->irq;  in snd_gusmax_probe()
281 			     gus->gf1.port + 0x10c, -1, xirq,  in snd_gusmax_probe()
316 …sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq,…  in snd_gusmax_probe()
318 		sprintf(card->longname + strlen(card->longname), "&%i", xdma2);  in snd_gusmax_probe()
324 	maxcard->gus = gus;  in snd_gusmax_probe()
325 	maxcard->wss = wss;  in snd_gusmax_probe()