cregit-Linux how code gets into the kernel

Release 4.7 sound/oss/sb_common.c

Directory: sound/oss
/*
 * sound/oss/sb_common.c
 *
 * Common routines for Sound Blaster compatible cards.
 *
 *
 * Copyright (C) by Hannu Savolainen 1993-1997
 *
 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 * Version 2 (June 1991). See the "COPYING" file distributed with this software
 * for more info.
 *
 *
 * Daniel J. Rodriksson: Modified sbintr to handle 8 and 16 bit interrupts
 *                       for full duplex support ( only sb16 by now )
 * Rolf Fokkens:         Added (BETA?) support for ES1887 chips.
 * (fokkensr@vertis.nl)  Which means: You can adjust the recording levels.
 *
 * 2000/01/18 - separated sb_card and sb_common -
 * Jeff Garzik <jgarzik@pobox.com>
 *
 * 2000/09/18 - got rid of attach_uart401
 * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 *
 * 2001/01/26 - replaced CLI/STI with spinlocks
 * Chris Rankin <rankinc@zipworld.com.au>
 */

#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/slab.h>

#include "sound_config.h"
#include "sound_firmware.h"

#include "mpu401.h"

#include "sb_mixer.h"
#include "sb.h"
#include "sb_ess.h"

/*
 * global module flag
 */


int sb_be_quiet;


static sb_devc *detected_devc;	
/* For communication from probe to init */

static sb_devc *last_devc;	
/* For MPU401 initialization */


static unsigned char jazz_irq_bits[] = {
	0, 0, 2, 3, 0, 1, 0, 4, 0, 2, 5, 0, 0, 0, 0, 6
};


static unsigned char jazz_dma_bits[] = {
	0, 1, 0, 2, 0, 3, 0, 4
};


void *smw_free;

/*
 * Jazz16 chipset specific control variables
 */


static int jazz16_base;			
/* Not detected */

static unsigned char jazz16_bits;	
/* I/O relocation bits */
static DEFINE_SPINLOCK(jazz16_lock);

/*
 * Logitech Soundman Wave specific initialization code
 */

#ifdef SMW_MIDI0001_INCLUDED
#include "smw-midi0001.h"
#else

static unsigned char *smw_ucode;

static int      smw_ucodeLen;

#endif


static sb_devc *last_sb;		
/* Last sb loaded */


int sb_dsp_command(sb_devc * devc, unsigned char val) { int i; unsigned long limit; limit = jiffies + HZ / 10; /* Timeout */ /* * Note! the i<500000 is an emergency exit. The sb_dsp_command() is sometimes * called while interrupts are disabled. This means that the timer is * disabled also. However the timeout situation is a abnormal condition. * Normally the DSP should be ready to accept commands after just couple of * loops. */ for (i = 0; i < 500000 && (limit-jiffies)>0; i++) { if ((inb(DSP_STATUS) & 0x80) == 0) { outb((val), DSP_COMMAND); return 1; } } printk(KERN_WARNING "Sound Blaster: DSP command(%x) timeout.\n", val); return 0; }

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int sb_dsp_get_byte(sb_devc * devc) { int i; for (i = 1000; i; i--) { if (inb(DSP_DATA_AVAIL) & 0x80) return inb(DSP_READ); } return 0xffff; }

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static void sb_intr (sb_devc *devc) { int status; unsigned char src = 0xff; if (devc->model == MDL_SB16) { src = sb_getmixer(devc, IRQ_STAT); /* Interrupt source register */ if (src & 4) /* MPU401 interrupt */ if(devc->midi_irq_cookie) uart401intr(devc->irq, devc->midi_irq_cookie); if (!(src & 3)) return; /* Not a DSP interrupt */ } if (devc->intr_active && (!devc->fullduplex || (src & 0x01))) { switch (devc->irq_mode) { case IMODE_OUTPUT: DMAbuf_outputintr(devc->dev, 1); break; case IMODE_INPUT: DMAbuf_inputintr(devc->dev); break; case IMODE_INIT: break; case IMODE_MIDI: sb_midi_interrupt(devc); break; default: /* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */ ; } } else if (devc->intr_active_16 && (src & 0x02)) { switch (devc->irq_mode_16) { case IMODE_OUTPUT: DMAbuf_outputintr(devc->dev, 1); break; case IMODE_INPUT: DMAbuf_inputintr(devc->dev); break; case IMODE_INIT: break; default: /* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */ ; } } /* * Acknowledge interrupts */ if (src & 0x01) status = inb(DSP_DATA_AVAIL); if (devc->model == MDL_SB16 && src & 0x02) status = inb(DSP_DATA_AVL16); }

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static void pci_intr(sb_devc *devc) { int src = inb(devc->pcibase+0x1A); src&=3; if(src) sb_intr(devc); }

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static irqreturn_t sbintr(int irq, void *dev_id) { sb_devc *devc = dev_id; devc->irq_ok = 1; switch (devc->model) { case MDL_ESSPCI: pci_intr (devc); break; case MDL_ESS: ess_intr (devc); break; default: sb_intr (devc); break; } return IRQ_HANDLED; }

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int sb_dsp_reset(sb_devc * devc) { int loopc; if (devc->model == MDL_ESS) return ess_dsp_reset (devc); /* This is only for non-ESS chips */ outb(1, DSP_RESET); udelay(10); outb(0, DSP_RESET); udelay(30); for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++); if (inb(DSP_READ) != 0xAA) { DDB(printk("sb: No response to RESET\n")); return 0; /* Sorry */ } return 1; }

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static void dsp_get_vers(sb_devc * devc) { int i; unsigned long flags; DDB(printk("Entered dsp_get_vers()\n")); spin_lock_irqsave(&devc->lock, flags); devc->major = devc->minor = 0; sb_dsp_command(devc, 0xe1); /* Get version */ for (i = 100000; i; i--) { if (inb(DSP_DATA_AVAIL) & 0x80) { if (devc->major == 0) devc->major = inb(DSP_READ); else { devc->minor = inb(DSP_READ); break; } } } spin_unlock_irqrestore(&devc->lock, flags); DDB(printk("DSP version %d.%02d\n", devc->major, devc->minor)); }

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static int sb16_set_dma_hw(sb_devc * devc) { int bits; if (devc->dma8 != 0 && devc->dma8 != 1 && devc->dma8 != 3) { printk(KERN_ERR "SB16: Invalid 8 bit DMA (%d)\n", devc->dma8); return 0; } bits = (1 << devc->dma8); if (devc->dma16 >= 5 && devc->dma16 <= 7) bits |= (1 << devc->dma16); sb_setmixer(devc, DMA_NR, bits); return 1; }

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static void sb16_set_mpu_port(sb_devc * devc, struct address_info *hw_config) { /* * This routine initializes new MIDI port setup register of SB Vibra (CT2502). */ unsigned char bits = sb_getmixer(devc, 0x84) & ~0x06; switch (hw_config->io_base) { case 0x300: sb_setmixer(devc, 0x84, bits | 0x04); break; case 0x330: sb_setmixer(devc, 0x84, bits | 0x00); break; default: sb_setmixer(devc, 0x84, bits | 0x02); /* Disable MPU */ printk(KERN_ERR "SB16: Invalid MIDI I/O port %x\n", hw_config->io_base); } }

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static int sb16_set_irq_hw(sb_devc * devc, int level) { int ival; switch (level) { case 5: ival = 2; break; case 7: ival = 4; break; case 9: ival = 1; break; case 10: ival = 8; break; default: printk(KERN_ERR "SB16: Invalid IRQ%d\n", level); return 0; } sb_setmixer(devc, IRQ_NR, ival); return 1; }

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static void relocate_Jazz16(sb_devc * devc, struct address_info *hw_config) { unsigned char bits = 0; unsigned long flags; if (jazz16_base != 0 && jazz16_base != hw_config->io_base) return; switch (hw_config->io_base) { case 0x220: bits = 1; break; case 0x240: bits = 2; break; case 0x260: bits = 3; break; default: return; } bits = jazz16_bits = bits << 5; jazz16_base = hw_config->io_base; /* * Magic wake up sequence by writing to 0x201 (aka Joystick port) */ spin_lock_irqsave(&jazz16_lock, flags); outb((0xAF), 0x201); outb((0x50), 0x201); outb((bits), 0x201); spin_unlock_irqrestore(&jazz16_lock, flags); }

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static int init_Jazz16(sb_devc * devc, struct address_info *hw_config) { char name[100]; /* * First try to check that the card has Jazz16 chip. It identifies itself * by returning 0x12 as response to DSP command 0xfa. */ if (!sb_dsp_command(devc, 0xfa)) return 0; if (sb_dsp_get_byte(devc) != 0x12) return 0; /* * OK so far. Now configure the IRQ and DMA channel used by the card. */ if (hw_config->irq < 1 || hw_config->irq > 15 || jazz_irq_bits[hw_config->irq] == 0) { printk(KERN_ERR "Jazz16: Invalid interrupt (IRQ%d)\n", hw_config->irq); return 0; } if (hw_config->dma < 0 || hw_config->dma > 3 || jazz_dma_bits[hw_config->dma] == 0) { printk(KERN_ERR "Jazz16: Invalid 8 bit DMA (DMA%d)\n", hw_config->dma); return 0; } if (hw_config->dma2 < 0) { printk(KERN_ERR "Jazz16: No 16 bit DMA channel defined\n"); return 0; } if (hw_config->dma2 < 5 || hw_config->dma2 > 7 || jazz_dma_bits[hw_config->dma2] == 0) { printk(KERN_ERR "Jazz16: Invalid 16 bit DMA (DMA%d)\n", hw_config->dma2); return 0; } devc->dma16 = hw_config->dma2; if (!sb_dsp_command(devc, 0xfb)) return 0; if (!sb_dsp_command(devc, jazz_dma_bits[hw_config->dma] | (jazz_dma_bits[hw_config->dma2] << 4))) return 0; if (!sb_dsp_command(devc, jazz_irq_bits[hw_config->irq])) return 0; /* * Now we have configured a standard Jazz16 device. */ devc->model = MDL_JAZZ; strcpy(name, "Jazz16"); hw_config->name = "Jazz16"; devc->caps |= SB_NO_MIDI; return 1; }

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static void relocate_ess1688(sb_devc * devc) { unsigned char bits; switch (devc->base) { case 0x220: bits = 0x04; break; case 0x230: bits = 0x05; break; case 0x240: bits = 0x06; break; case 0x250: bits = 0x07; break; default: return; /* Wrong port */ } DDB(printk("Doing ESS1688 address selection\n")); /* * ES1688 supports two alternative ways for software address config. * First try the so called Read-Sequence-Key method. */ /* Reset the sequence logic */ inb(0x229); inb(0x229); inb(0x229); /* Perform the read sequence */ inb(0x22b); inb(0x229); inb(0x22b); inb(0x229); inb(0x229); inb(0x22b); inb(0x229); /* Select the base address by reading from it. Then probe using the port. */ inb(devc->base); if (sb_dsp_reset(devc)) /* Bingo */ return; #if 0 /* This causes system lockups (Nokia 386/25 at least) */ /* * The last resort is the system control register method. */ outb((0x00), 0xfb); /* 0xFB is the unlock register */ outb((0x00), 0xe0); /* Select index 0 */ outb((bits), 0xe1); /* Write the config bits */ outb((0x00), 0xf9); /* 0xFB is the lock register */ #endif }

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int sb_dsp_detect(struct address_info *hw_config, int pci, int pciio, struct sb_module_options *sbmo) { sb_devc sb_info; sb_devc *devc = &sb_info; memset((char *) &sb_info, 0, sizeof(sb_info)); /* Zero everything */ /* Copy module options in place */ if(sbmo) memcpy(&devc->sbmo, sbmo, sizeof(struct sb_module_options)); sb_info.my_mididev = -1; sb_info.my_mixerdev = -1; sb_info.dev = -1; /* * Initialize variables */ DDB(printk("sb_dsp_detect(%x) entered\n", hw_config->io_base)); spin_lock_init(&devc->lock); devc->type = hw_config->card_subtype; devc->base = hw_config->io_base; devc->irq = hw_config->irq; devc->dma8 = hw_config->dma; devc->dma16 = -1; devc->pcibase = pciio; if(pci == SB_PCI_ESSMAESTRO) { devc->model = MDL_ESSPCI; devc->caps |= SB_PCI_IRQ; hw_config->driver_use_1 |= SB_PCI_IRQ; hw_config->card_subtype = MDL_ESSPCI; } if(pci == SB_PCI_YAMAHA) { devc->model = MDL_YMPCI; devc->caps |= SB_PCI_IRQ; hw_config->driver_use_1 |= SB_PCI_IRQ; hw_config->card_subtype = MDL_YMPCI; printk("Yamaha PCI mode.\n"); } if (devc->sbmo.acer) { unsigned long flags; spin_lock_irqsave(&devc->lock, flags); inb(devc->base + 0x09); inb(devc->base + 0x09); inb(devc->base + 0x09); inb(devc->base + 0x0b); inb(devc->base + 0x09); inb(devc->base + 0x0b); inb(devc->base + 0x09); inb(devc->base + 0x09); inb(devc->base + 0x0b); inb(devc->base + 0x09); inb(devc->base + 0x00); spin_unlock_irqrestore(&devc->lock, flags); } /* * Detect the device */ if (sb_dsp_reset(devc)) dsp_get_vers(devc); else devc->major = 0; if (devc->type == 0 || devc->type == MDL_JAZZ || devc->type == MDL_SMW) if (devc->major == 0 || (devc->major == 3 && devc->minor == 1)) relocate_Jazz16(devc, hw_config); if (devc->major == 0 && (devc->type == MDL_ESS || devc->type == 0)) relocate_ess1688(devc); if (!sb_dsp_reset(devc)) { DDB(printk("SB reset failed\n")); #ifdef MODULE printk(KERN_INFO "sb: dsp reset failed.\n"); #endif return 0; } if (devc->major == 0) dsp_get_vers(devc); if (devc->major == 3 && devc->minor == 1) { if (devc->type == MDL_AZTECH) /* SG Washington? */ { if (sb_dsp_command(devc, 0x09)) if (sb_dsp_command(devc, 0x00)) /* Enter WSS mode */ { int i; /* Have some delay */ for (i = 0; i < 10000; i++) inb(DSP_DATA_AVAIL); devc->caps = SB_NO_AUDIO | SB_NO_MIDI; /* Mixer only */ devc->model = MDL_AZTECH; } } } if(devc->type == MDL_ESSPCI) devc->model = MDL_ESSPCI; if(devc->type == MDL_YMPCI) { printk("YMPCI selected\n"); devc->model = MDL_YMPCI; } /* * Save device information for sb_dsp_init() */ detected_devc = kmemdup(devc, sizeof(sb_devc), GFP_KERNEL); if (detected_devc == NULL) { printk(KERN_ERR "sb: Can't allocate memory for device information\n"); return 0; } MDB(printk(KERN_INFO "SB %d.%02d detected OK (%x)\n", devc->major, devc->minor, hw_config->io_base)); return 1; }

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int sb_dsp_init(struct address_info *hw_config, struct module *owner) { sb_devc *devc; char name[100]; extern int sb_be_quiet; int mixer22, mixer30; /* * Check if we had detected a SB device earlier */ DDB(printk("sb_dsp_init(%x) entered\n", hw_config->io_base)); name[0] = 0; if (detected_devc == NULL) { MDB(printk("No detected device\n")); return 0; } devc = detected_devc; detected_devc = NULL; if (devc->base != hw_config->io_base) { DDB(printk("I/O port mismatch\n")); release_region(devc->base, 16); return 0; } /* * Now continue initialization of the device */ devc->caps = hw_config->driver_use_1; if (!((devc->caps & SB_NO_AUDIO) && (devc->caps & SB_NO_MIDI)) && hw_config->irq > 0) { /* IRQ setup */ /* * ESS PCI cards do shared PCI IRQ stuff. Since they * will get shared PCI irq lines we must cope. */ int i=(devc->caps&SB_PCI_IRQ)?IRQF_SHARED:0; if (request_irq(hw_config->irq, sbintr, i, "soundblaster", devc) < 0) { printk(KERN_ERR "SB: Can't allocate IRQ%d\n", hw_config->irq); release_region(devc->base, 16); return 0; } devc->irq_ok = 0; if (devc->major == 4) if (!sb16_set_irq_hw(devc, devc->irq)) /* Unsupported IRQ */ { free_irq(devc->irq, devc); release_region(devc->base, 16); return 0; } if ((devc->type == 0 || devc->type == MDL_ESS) && devc->major == 3 && devc->minor == 1) { /* Handle various chipsets which claim they are SB Pro compatible */ if ((devc->type != 0 && devc->type != MDL_ESS) || !ess_init(devc, hw_config)) { if ((devc->type != 0 && devc->type != MDL_JAZZ && devc->type != MDL_SMW) || !init_Jazz16(devc, hw_config)) { DDB(printk("This is a genuine SB Pro\n")); } } } if (devc->major == 4 && devc->minor <= 11 ) /* Won't work */ devc->irq_ok = 1; else { int n; for (n = 0; n < 3 && devc->irq_ok == 0; n++) { if (sb_dsp_command(devc, 0xf2)) /* Cause interrupt immediately */ { int i; for (i = 0; !devc->irq_ok && i < 10000; i++); } } if (!devc->irq_ok) printk(KERN_WARNING "sb: Interrupt test on IRQ%d failed - Probable IRQ conflict\n", devc->irq); else { DDB(printk("IRQ test OK (IRQ%d)\n", devc->irq)); } } } /* IRQ setup */ last_sb = devc; switch (devc->major) { case 1: /* SB 1.0 or 1.5 */ devc->model = hw_config->card_subtype = MDL_SB1; break; case 2: /* SB 2.x */ if (devc->minor == 0) devc->model = hw_config->card_subtype = MDL_SB2; else devc->model = hw_config->card_subtype = MDL_SB201; break; case 3: /* SB Pro and most clones */ switch (devc->model) { case 0: devc->model = hw_config->card_subtype = MDL_SBPRO; if (hw_config->name == NULL) hw_config->name = "Sound Blaster Pro (8 BIT ONLY)"; break; case MDL_ESS: ess_dsp_init(devc, hw_config); break; } break; case 4: devc->model = hw_config->card_subtype = MDL_SB16; /* * ALS007 and ALS100 return DSP version 4.2 and have 2 post-reset !=0 * registers at 0x3c and 0x4c (output ctrl registers on ALS007) whereas * a "standard" SB16 doesn't have a register at 0x4c. ALS100 actively * updates register 0x22 whenever 0x30 changes, as per the SB16 spec. * Since ALS007 doesn't, this can be used to differentiate the 2 cards. */ if ((devc->minor == 2) && sb_getmixer(devc,0x3c) && sb_getmixer(devc,0x4c)) { mixer30 = sb_getmixer(devc,0x30); sb_setmixer(devc,0x22,(mixer22=sb_getmixer(devc,0x22)) & 0x0f); sb_setmixer(devc,0x30,0xff); /* ALS100 will force 0x30 to 0xf8 like SB16; ALS007 will allow 0xff. */ /* Register 0x22 & 0xf0 on ALS100 == 0xf0; on ALS007 it == 0x10. */ if ((sb_getmixer(devc,0x30) != 0xff) || ((sb_getmixer(devc,0x22) & 0xf0) != 0x10)) { devc->submodel = SUBMDL_ALS100; if (hw_config->name == NULL) hw_config->name = "Sound Blaster 16 (ALS-100)"; } else { sb_setmixer(devc,0x3c,0x1f); /* Enable all inputs */ sb_setmixer(devc,0x4c,0x1f); sb_setmixer(devc,0x22,mixer22); /* Restore 0x22 to original value */ devc->submodel = SUBMDL_ALS007; if (hw_config->name == NULL) hw_config->name = "Sound Blaster 16 (ALS-007)"; } sb_setmixer(devc,0x30,mixer30); } else if (hw_config->name == NULL) hw_config->name = "Sound Blaster 16"; if (hw_config->dma2 == -1) devc->dma16 = devc->dma8; else if (hw_config->dma2 < 5 || hw_config->dma2 > 7) { printk(KERN_WARNING "SB16: Bad or missing 16 bit DMA channel\n"); devc->dma16 = devc->dma8; } else devc->dma16 = hw_config->dma2; if(!sb16_set_dma_hw(devc)) { free_irq(devc->irq, devc); release_region(hw_config->io_base, 16); return 0; } devc->caps |= SB_NO_MIDI; } if (!(devc->caps & SB_NO_MIXER)) if (devc->major == 3 || devc->major == 4) sb_mixer_init(devc, owner); if (!(devc->caps & SB_NO_MIDI)) sb_dsp_midi_init(devc, owner); if (hw_config->name == NULL) hw_config->name = "Sound Blaster (8 BIT/MONO ONLY)"; sprintf(name, "%s (%d.%02d)", hw_config->name, devc->major, devc->minor); conf_printf(name, hw_config); /* * Assuming that a sound card is Sound Blaster (compatible) is the most common * configuration error and the mother of all problems. Usually sound cards * emulate SB Pro but in addition they have a 16 bit native mode which should be * used in Unix. See Readme.cards for more information about configuring OSS/Free * properly. */ if (devc->model <= MDL_SBPRO) { if (devc->major == 3 && devc->minor != 1) /* "True" SB Pro should have v3.1 (rare ones may have 3.2). */ { printk(KERN_INFO "This sound card may not be fully Sound Blaster Pro compatible.\n"); printk(KERN_INFO "In many cases there is another way to configure OSS so that\n"); printk(KERN_INFO "it works properly with OSS (for example in 16 bit mode).\n"); printk(KERN_INFO "Please ignore this message if you _really_ have a SB Pro.\n"); } else if (!sb_be_quiet && devc->model == MDL_SBPRO) { printk(KERN_INFO "SB DSP version is just %d.%02d which means that your card is\n", devc->major, devc->minor); printk(KERN_INFO "several years old (8 bit only device) or alternatively the sound driver\n"); printk(KERN_INFO "is incorrectly configured.\n"); } } hw_config->card_subtype = devc->model; hw_config->slots[0]=devc->dev; last_devc = devc; /* For SB MPU detection */ if (!(devc->caps & SB_NO_AUDIO) && devc->dma8 >= 0) { if (sound_alloc_dma(devc->dma8, "SoundBlaster8")) { printk(KERN_WARNING "Sound Blaster: Can't allocate 8 bit DMA channel %d\n", devc->dma8); } if (devc->dma16 >= 0 && devc->dma16 != devc->dma8) { if (sound_alloc_dma(devc->dma16, "SoundBlaster16")) printk(KERN_WARNING "Sound Blaster: can't allocate 16 bit DMA channel %d.\n", devc->dma16); } sb_audio_init(devc, name, owner); hw_config->slots[0]=devc->dev; } else { MDB(printk("Sound Blaster: no audio devices found.\n")); } return 1; }

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Total1207100.00%33100.00%

/* if (sbmpu) below we allow mpu401 to manage the midi devs otherwise we have to unload them. (Andrzej Krzysztofowicz) */
void sb_dsp_unload(struct address_info *hw_config, int sbmpu) { sb_devc *devc; devc = audio_devs[hw_config->slots[0]]->devc; if (devc && devc->base == hw_config->io_base) { if ((devc->model & MDL_ESS) && devc->pcibase) release_region(devc->pcibase, 8); release_region(devc->base, 16); if (!(devc->caps & SB_NO_AUDIO)) { sound_free_dma(devc->dma8); if (devc->dma16 >= 0) sound_free_dma(devc->dma16); } if (!(devc->caps & SB_NO_AUDIO && devc->caps & SB_NO_MIDI)) { if (devc->irq > 0) free_irq(devc->irq, devc); sb_mixer_unload(devc); /* We don't have to do this bit any more the UART401 is its own master -- Krzysztof Halasa */ /* But we have to do it, if UART401 is not detected */ if (!sbmpu) sound_unload_mididev(devc->my_mididev); sound_unload_audiodev(devc->dev); } kfree(devc); } else release_region(hw_config->io_base, 16); kfree(detected_devc); }

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pre-gitpre-git194100.00%15100.00%
Total194100.00%15100.00%

/* * Mixer access routines * * ES1887 modifications: some mixer registers reside in the * range above 0xa0. These must be accessed in another way. */
void sb_setmixer(sb_devc * devc, unsigned int port, unsigned int value) { unsigned long flags; if (devc->model == MDL_ESS) { ess_setmixer (devc, port, value); return; } spin_lock_irqsave(&devc->lock, flags); outb(((unsigned char) (port & 0xff)), MIXER_ADDR); udelay(20); outb(((unsigned char) (value & 0xff)), MIXER_DATA); udelay(20); spin_unlock_irqrestore(&devc->lock, flags); }

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pre-gitpre-git8984.76%675.00%
linus torvaldslinus torvalds1211.43%112.50%
al viroal viro43.81%112.50%
Total105100.00%8100.00%


unsigned int sb_getmixer(sb_devc * devc, unsigned int port) { unsigned int val; unsigned long flags; if (devc->model == MDL_ESS) return ess_getmixer (devc, port); spin_lock_irqsave(&devc->lock, flags); outb(((unsigned char) (port & 0xff)), MIXER_ADDR); udelay(20); val = inb(MIXER_DATA); udelay(20); spin_unlock_irqrestore(&devc->lock, flags); return val; }

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pre-gitpre-git8387.37%787.50%
linus torvaldslinus torvalds1212.63%112.50%
Total95100.00%8100.00%


void sb_chgmixer (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val) { int value; value = sb_getmixer(devc, reg); value = (value & ~mask) | (val & mask); sb_setmixer(devc, reg, value); }

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pre-gitpre-git57100.00%2100.00%
Total57100.00%2100.00%

/* * MPU401 MIDI initialization. */
static void smw_putmem(sb_devc * devc, int base, int addr, unsigned char val) { unsigned long flags; spin_lock_irqsave(&jazz16_lock, flags); /* NOT the SB card? */ outb((addr & 0xff), base + 1); /* Low address bits */ outb((addr >> 8), base + 2); /* High address bits */ outb((val), base); /* Data */ spin_unlock_irqrestore(&jazz16_lock, flags); }

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pre-gitpre-git7088.61%480.00%
linus torvaldslinus torvalds911.39%120.00%
Total79100.00%5100.00%


static unsigned char smw_getmem(sb_devc * devc, int base, int addr) { unsigned long flags; unsigned char val; spin_lock_irqsave(&jazz16_lock, flags); /* NOT the SB card? */ outb((addr & 0xff), base + 1); /* Low address bits */ outb((addr >> 8), base + 2); /* High address bits */ val = inb(base); /* Data */ spin_unlock_irqrestore(&jazz16_lock, flags); return val; }

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pre-gitpre-git7288.89%480.00%
linus torvaldslinus torvalds911.11%120.00%
Total81100.00%5100.00%


static int smw_midi_init(sb_devc * devc, struct address_info *hw_config) { int mpu_base = hw_config->io_base; int mp_base = mpu_base + 4; /* Microcontroller base */ int i; unsigned char control; /* * Reset the microcontroller so that the RAM can be accessed */ control = inb(mpu_base + 7); outb((control | 3), mpu_base + 7); /* Set last two bits to 1 (?) */ outb(((control & 0xfe) | 2), mpu_base + 7); /* xxxxxxx0 resets the mc */ mdelay(3); /* Wait at least 1ms */ outb((control & 0xfc), mpu_base + 7); /* xxxxxx00 enables RAM */ /* * Detect microcontroller by probing the 8k RAM area */ smw_putmem(devc, mp_base, 0, 0x00); smw_putmem(devc, mp_base, 1, 0xff); udelay(10); if (smw_getmem(devc, mp_base, 0) != 0x00 || smw_getmem(devc, mp_base, 1) != 0xff) { DDB(printk("SM Wave: No microcontroller RAM detected (%02x, %02x)\n", smw_getmem(devc, mp_base, 0), smw_getmem(devc, mp_base, 1))); return 0; /* No RAM */ } /* * There is RAM so assume it's really a SM Wave */ devc->model = MDL_SMW; smw_mixer_init(devc); #ifdef MODULE if (!smw_ucode) { smw_ucodeLen = mod_firmware_load("/etc/sound/midi0001.bin", (void *) &smw_ucode); smw_free = smw_ucode; } #endif if (smw_ucodeLen > 0) { if (smw_ucodeLen != 8192) { printk(KERN_ERR "SM Wave: Invalid microcode (MIDI0001.BIN) length\n"); return 1; } /* * Download microcode */ for (i = 0; i < 8192; i++) smw_putmem(devc, mp_base, i, smw_ucode[i]); /* * Verify microcode */ for (i = 0; i < 8192; i++) if (smw_getmem(devc, mp_base, i) != smw_ucode[i]) { printk(KERN_ERR "SM Wave: Microcode verification failed\n"); return 0; } } control = 0; #ifdef SMW_SCSI_IRQ /* * Set the SCSI interrupt (IRQ2/9, IRQ3 or IRQ10). The SCSI interrupt * is disabled by default. * * FIXME - make this a module option * * BTW the Zilog 5380 SCSI controller is located at MPU base + 0x10. */ { static unsigned char scsi_irq_bits[] = { 0, 0, 3, 1, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0 }; control |= scsi_irq_bits[SMW_SCSI_IRQ] << 6; } #endif #ifdef SMW_OPL4_ENABLE /* * Make the OPL4 chip visible on the PC bus at 0x380. * * There is no need to enable this feature since this driver * doesn't support OPL4 yet. Also there is no RAM in SM Wave so * enabling OPL4 is pretty useless. */ control |= 0x10; /* Uses IRQ12 if bit 0x20 == 0 */ /* control |= 0x20; Uncomment this if you want to use IRQ7 */ #endif outb((control | 0x03), mpu_base + 7); /* xxxxxx11 restarts */ hw_config->name = "SoundMan Wave"; return 1; }

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Total415100.00%9100.00%


static int init_Jazz16_midi(sb_devc * devc, struct address_info *hw_config) { int mpu_base = hw_config->io_base; int sb_base = devc->base; int irq = hw_config->irq; unsigned char bits = 0; unsigned long flags; if (irq < 0) irq *= -1; if (irq < 1 || irq > 15 || jazz_irq_bits[irq] == 0) { printk(KERN_ERR "Jazz16: Invalid MIDI interrupt (IRQ%d)\n", irq); return 0; } switch (sb_base) { case 0x220: bits = 1; break; case 0x240: bits = 2; break; case 0x260: bits = 3; break; default: return 0; } bits = jazz16_bits = bits << 5; switch (mpu_base) { case 0x310: bits |= 1; break; case 0x320: bits |= 2; break; case 0x330: bits |= 3; break; default: printk(KERN_ERR "Jazz16: Invalid MIDI I/O port %x\n", mpu_base); return 0; } /* * Magic wake up sequence by writing to 0x201 (aka Joystick port) */ spin_lock_irqsave(&jazz16_lock, flags); outb(0xAF, 0x201); outb(0x50, 0x201); outb(bits, 0x201); spin_unlock_irqrestore(&jazz16_lock, flags); hw_config->name = "Jazz16"; smw_midi_init(devc, hw_config); if (!sb_dsp_command(devc, 0xfb)) return 0; if (!sb_dsp_command(devc, jazz_dma_bits[devc->dma8] | (jazz_dma_bits[devc->dma16] << 4))) return 0; if (!sb_dsp_command(devc, jazz_irq_bits[devc->irq] | (jazz_irq_bits[irq] << 4))) return 0; return 1; }

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pre-gitpre-git28697.28%1493.33%
linus torvaldslinus torvalds82.72%16.67%
Total294100.00%15100.00%


int probe_sbmpu(struct address_info *hw_config, struct module *owner) { sb_devc *devc = last_devc; int ret; if (last_devc == NULL) return 0; last_devc = NULL; if (hw_config->io_base <= 0) { /* The real vibra16 is fine about this, but we have to go wipe up after Cyrix again */ if(devc->model == MDL_SB16 && devc->minor >= 12) { unsigned char bits = sb_getmixer(devc, 0x84) & ~0x06; sb_setmixer(devc, 0x84, bits | 0x02); /* Disable MPU */ } return 0; } #if defined(CONFIG_SOUND_MPU401) if (devc->model == MDL_ESS) { struct resource *ports; ports = request_region(hw_config->io_base, 2, "mpu401"); if (!ports) { printk(KERN_ERR "sbmpu: I/O port conflict (%x)\n", hw_config->io_base); return 0; } if (!ess_midi_init(devc, hw_config)) { release_region(hw_config->io_base, 2); return 0; } hw_config->name = "ESS1xxx MPU"; devc->midi_irq_cookie = NULL; if (!probe_mpu401(hw_config, ports)) { release_region(hw_config->io_base, 2); return 0; } attach_mpu401(hw_config, owner); if (last_sb->irq == -hw_config->irq) last_sb->midi_irq_cookie = (void *)(long) hw_config->slots[1]; return 1; } #endif switch (devc->model) { case MDL_SB16: if (hw_config->io_base != 0x300 && hw_config->io_base != 0x330) { printk(KERN_ERR "SB16: Invalid MIDI port %x\n", hw_config->io_base); return 0; } hw_config->name = "Sound Blaster 16"; if (hw_config->irq < 3 || hw_config->irq == devc->irq) hw_config->irq = -devc->irq; if (devc->minor > 12) /* What is Vibra's version??? */ sb16_set_mpu_port(devc, hw_config); break; case MDL_JAZZ: if (hw_config->irq < 3 || hw_config->irq == devc->irq) hw_config->irq = -devc->irq; if (!init_Jazz16_midi(devc, hw_config)) return 0; break; case MDL_YMPCI: hw_config->name = "Yamaha PCI Legacy"; printk("Yamaha PCI legacy UART401 check.\n"); break; default: return 0; } ret = probe_uart401(hw_config, owner); if (ret) last_sb->midi_irq_cookie=midi_devs[hw_config->slots[4]]->devc; return ret; }

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pre-gitpre-git38589.74%2184.00%
al viroal viro409.32%28.00%
jeff garzikjeff garzik30.70%14.00%
linus torvaldslinus torvalds10.23%14.00%
Total429100.00%25100.00%


void unload_sbmpu(struct address_info *hw_config) { #if defined(CONFIG_SOUND_MPU401) if (!strcmp (hw_config->name, "ESS1xxx MPU")) { unload_mpu401(hw_config); return; } #endif unload_uart401(hw_config); }

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pre-gitpre-git43100.00%6100.00%
Total43100.00%6100.00%

EXPORT_SYMBOL(sb_dsp_init); EXPORT_SYMBOL(sb_dsp_detect); EXPORT_SYMBOL(sb_dsp_unload); EXPORT_SYMBOL(sb_be_quiet); EXPORT_SYMBOL(probe_sbmpu); EXPORT_SYMBOL(unload_sbmpu); EXPORT_SYMBOL(smw_free); MODULE_LICENSE("GPL");

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pre-gitpre-git518896.09%5976.62%
linus torvaldslinus torvalds1112.06%33.90%
al viroal viro711.32%45.19%
thomas gleixnerthomas gleixner90.17%33.90%
andrew mortonandrew morton40.07%11.30%
alexandru gheorghiualexandru gheorghiu30.06%11.30%
jeff garzikjeff garzik30.06%11.30%
arnaldo carvalho de meloarnaldo carvalho de melo30.06%11.30%
tejun heotejun heo30.06%11.30%
randy dunlaprandy dunlap20.04%11.30%
adrian bunkadrian bunk10.02%11.30%
uwe zeisbergeruwe zeisberger10.02%11.30%
Total5399100.00%77100.00%
Directory: sound/oss
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