345 lines
9.3 KiB
C
345 lines
9.3 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Driver for Gravis UltraSound MAX soundcard
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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*/
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/isa.h>
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#include <linux/delay.h>
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#include <linux/time.h>
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#include <linux/module.h>
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#include <asm/dma.h>
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#include <sound/core.h>
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#include <sound/gus.h>
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#include <sound/wss.h>
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#define SNDRV_LEGACY_FIND_FREE_IRQ
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#define SNDRV_LEGACY_FIND_FREE_DMA
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#include <sound/initval.h>
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MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
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MODULE_DESCRIPTION("Gravis UltraSound MAX");
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MODULE_LICENSE("GPL");
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
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static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */
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static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,3,5,9,11,12,15 */
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static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
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static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
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static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
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/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
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static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
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static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
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module_param_hw_array(port, long, ioport, NULL, 0444);
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MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
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module_param_hw_array(irq, int, irq, NULL, 0444);
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MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
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module_param_hw_array(dma1, int, dma, NULL, 0444);
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MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
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module_param_hw_array(dma2, int, dma, NULL, 0444);
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MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
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module_param_array(joystick_dac, int, NULL, 0444);
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MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
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module_param_array(channels, int, NULL, 0444);
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MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
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module_param_array(pcm_channels, int, NULL, 0444);
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MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
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struct snd_gusmax {
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int irq;
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struct snd_card *card;
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struct snd_gus_card *gus;
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struct snd_wss *wss;
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unsigned short gus_status_reg;
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unsigned short pcm_status_reg;
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};
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#define PFX "gusmax: "
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static int snd_gusmax_detect(struct snd_gus_card *gus)
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{
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unsigned char d;
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snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
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d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET);
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if ((d & 0x07) != 0) {
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snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
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return -ENODEV;
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}
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udelay(160);
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snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
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udelay(160);
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d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET);
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if ((d & 0x07) != 1) {
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snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
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return -ENODEV;
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}
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return 0;
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}
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static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
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{
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struct snd_gusmax *maxcard = dev_id;
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int loop, max = 5;
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int handled = 0;
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do {
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loop = 0;
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if (inb(maxcard->gus_status_reg)) {
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handled = 1;
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snd_gus_interrupt(irq, maxcard->gus);
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loop++;
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}
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if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */
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handled = 1;
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snd_wss_interrupt(irq, maxcard->wss);
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loop++;
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}
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} while (loop && --max > 0);
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return IRQ_RETVAL(handled);
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}
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static void snd_gusmax_init(int dev, struct snd_card *card,
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struct snd_gus_card *gus)
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{
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gus->equal_irq = 1;
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gus->codec_flag = 1;
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gus->joystick_dac = joystick_dac[dev];
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/* init control register */
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gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
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if (gus->gf1.dma1 > 3)
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gus->max_cntrl_val |= 0x10;
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if (gus->gf1.dma2 > 3)
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gus->max_cntrl_val |= 0x20;
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gus->max_cntrl_val |= 0x40;
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outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
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}
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static int snd_gusmax_mixer(struct snd_wss *chip)
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{
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struct snd_card *card = chip->card;
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struct snd_ctl_elem_id id1, id2;
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int err;
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memset(&id1, 0, sizeof(id1));
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memset(&id2, 0, sizeof(id2));
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id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
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/* reassign AUXA to SYNTHESIZER */
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strcpy(id1.name, "Aux Playback Switch");
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strcpy(id2.name, "Synth Playback Switch");
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err = snd_ctl_rename_id(card, &id1, &id2);
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if (err < 0)
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return err;
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strcpy(id1.name, "Aux Playback Volume");
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strcpy(id2.name, "Synth Playback Volume");
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err = snd_ctl_rename_id(card, &id1, &id2);
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if (err < 0)
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return err;
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/* reassign AUXB to CD */
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strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
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strcpy(id2.name, "CD Playback Switch");
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err = snd_ctl_rename_id(card, &id1, &id2);
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if (err < 0)
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return err;
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strcpy(id1.name, "Aux Playback Volume");
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strcpy(id2.name, "CD Playback Volume");
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err = snd_ctl_rename_id(card, &id1, &id2);
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if (err < 0)
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return err;
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#if 0
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/* reassign Mono Input to MIC */
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if (snd_mixer_group_rename(mixer,
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SNDRV_MIXER_IN_MONO, 0,
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SNDRV_MIXER_IN_MIC, 0) < 0)
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goto __error;
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if (snd_mixer_elem_rename(mixer,
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SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
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SNDRV_MIXER_IN_MIC, 0) < 0)
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goto __error;
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if (snd_mixer_elem_rename(mixer,
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"Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
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"Mic Capture Volume", 0) < 0)
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goto __error;
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if (snd_mixer_elem_rename(mixer,
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"Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
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"Mic Capture Switch", 0) < 0)
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goto __error;
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#endif
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return 0;
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}
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static int snd_gusmax_match(struct device *pdev, unsigned int dev)
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{
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return enable[dev];
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}
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static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
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{
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static const int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
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static const int possible_dmas[] = {5, 6, 7, 1, 3, -1};
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int xirq, xdma1, xdma2, err;
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struct snd_card *card;
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struct snd_gus_card *gus = NULL;
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struct snd_wss *wss;
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struct snd_gusmax *maxcard;
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err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_gusmax), &card);
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if (err < 0)
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return err;
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maxcard = card->private_data;
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maxcard->card = card;
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maxcard->irq = -1;
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xirq = irq[dev];
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if (xirq == SNDRV_AUTO_IRQ) {
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xirq = snd_legacy_find_free_irq(possible_irqs);
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if (xirq < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
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return -EBUSY;
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}
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}
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xdma1 = dma1[dev];
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if (xdma1 == SNDRV_AUTO_DMA) {
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xdma1 = snd_legacy_find_free_dma(possible_dmas);
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if (xdma1 < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
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return -EBUSY;
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}
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}
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xdma2 = dma2[dev];
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if (xdma2 == SNDRV_AUTO_DMA) {
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xdma2 = snd_legacy_find_free_dma(possible_dmas);
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if (xdma2 < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
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return -EBUSY;
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}
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}
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if (port[dev] != SNDRV_AUTO_PORT) {
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err = snd_gus_create(card,
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port[dev],
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-xirq, xdma1, xdma2,
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0, channels[dev],
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pcm_channels[dev],
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0, &gus);
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} else {
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static const unsigned long possible_ports[] = {
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0x220, 0x230, 0x240, 0x250, 0x260
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};
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int i;
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for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
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err = snd_gus_create(card,
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possible_ports[i],
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-xirq, xdma1, xdma2,
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0, channels[dev],
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pcm_channels[dev],
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0, &gus);
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if (err >= 0) {
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port[dev] = possible_ports[i];
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break;
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}
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}
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}
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if (err < 0)
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return err;
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err = snd_gusmax_detect(gus);
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if (err < 0)
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return err;
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maxcard->gus_status_reg = gus->gf1.reg_irqstat;
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maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
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snd_gusmax_init(dev, card, gus);
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err = snd_gus_initialize(gus);
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if (err < 0)
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return err;
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if (!gus->max_flag) {
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snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
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return -ENODEV;
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}
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if (devm_request_irq(card->dev, xirq, snd_gusmax_interrupt, 0,
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"GUS MAX", (void *)maxcard)) {
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snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
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return -EBUSY;
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}
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maxcard->irq = xirq;
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card->sync_irq = maxcard->irq;
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err = snd_wss_create(card,
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gus->gf1.port + 0x10c, -1, xirq,
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xdma2 < 0 ? xdma1 : xdma2, xdma1,
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WSS_HW_DETECT,
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WSS_HWSHARE_IRQ |
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WSS_HWSHARE_DMA1 |
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WSS_HWSHARE_DMA2,
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&wss);
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if (err < 0)
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return err;
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err = snd_wss_pcm(wss, 0);
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if (err < 0)
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return err;
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err = snd_wss_mixer(wss);
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if (err < 0)
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return err;
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err = snd_wss_timer(wss, 2);
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if (err < 0)
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return err;
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if (pcm_channels[dev] > 0) {
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err = snd_gf1_pcm_new(gus, 1, 1);
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if (err < 0)
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return err;
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}
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err = snd_gusmax_mixer(wss);
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if (err < 0)
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return err;
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err = snd_gf1_rawmidi_new(gus, 0);
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if (err < 0)
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return err;
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sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
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if (xdma2 >= 0)
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sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
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err = snd_card_register(card);
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if (err < 0)
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return err;
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maxcard->gus = gus;
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maxcard->wss = wss;
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dev_set_drvdata(pdev, card);
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return 0;
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}
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#define DEV_NAME "gusmax"
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static struct isa_driver snd_gusmax_driver = {
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.match = snd_gusmax_match,
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.probe = snd_gusmax_probe,
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/* FIXME: suspend/resume */
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.driver = {
|
||
|
|
.name = DEV_NAME
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
module_isa_driver(snd_gusmax_driver, SNDRV_CARDS);
|