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d34e1b7b9a
PCM core deals the empty ioctl field now as default(*).
Let's kill the redundant lines.
(*) commit fc033cbf6f
("ALSA: pcm: Allow NULL ioctl ops")
Link: https://lore.kernel.org/r/20191210061145.24641-16-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
1003 lines
30 KiB
C
1003 lines
30 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* card-als4000.c - driver for Avance Logic ALS4000 based soundcards.
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* Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>,
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* Jaroslav Kysela <perex@perex.cz>
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* Copyright (C) 2002, 2008 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
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*
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* Framework borrowed from Massimo Piccioni's card-als100.c.
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*
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* NOTES
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*
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* Since Avance does not provide any meaningful documentation, and I
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* bought an ALS4000 based soundcard, I was forced to base this driver
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* on reverse engineering.
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*
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* Note: this is no longer true (thank you!):
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* pretty verbose chip docu (ALS4000a.PDF) can be found on the ALSA web site.
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* Page numbers stated anywhere below with the "SPECS_PAGE:" tag
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* refer to: ALS4000a.PDF specs Ver 1.0, May 28th, 1998.
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*
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* The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an
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* ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport
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* interface. These subsystems can be mapped into ISA io-port space,
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* using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ
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* services to the subsystems.
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*
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* While ALS4000 is very similar to a SoundBlaster, the differences in
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* DMA and capturing require more changes to the SoundBlaster than
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* desirable, so I made this separate driver.
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*
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* The ALS4000 can do real full duplex playback/capture.
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*
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* FMDAC:
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* - 0x4f -> port 0x14
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* - port 0x15 |= 1
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*
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* Enable/disable 3D sound:
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* - 0x50 -> port 0x14
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* - change bit 6 (0x40) of port 0x15
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*
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* Set QSound:
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* - 0xdb -> port 0x14
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* - set port 0x15:
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* 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0)
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*
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* Set KSound:
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* - value -> some port 0x0c0d
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*
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* ToDo:
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* - by default, don't enable legacy game and use PCI game I/O
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* - power management? (card can do voice wakeup according to datasheet!!)
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*/
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#include <linux/io.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/gameport.h>
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#include <linux/module.h>
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#include <linux/dma-mapping.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/rawmidi.h>
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#include <sound/mpu401.h>
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#include <sound/opl3.h>
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#include <sound/sb.h>
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#include <sound/initval.h>
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MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>, Andreas Mohr");
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MODULE_DESCRIPTION("Avance Logic ALS4000");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}");
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#if IS_REACHABLE(CONFIG_GAMEPORT)
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#define SUPPORT_JOYSTICK 1
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#endif
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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_PNP; /* Enable this card */
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#ifdef SUPPORT_JOYSTICK
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static int joystick_port[SNDRV_CARDS];
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#endif
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard.");
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#ifdef SUPPORT_JOYSTICK
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module_param_hw_array(joystick_port, int, ioport, NULL, 0444);
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MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)");
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#endif
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struct snd_card_als4000 {
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/* most frequent access first */
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unsigned long iobase;
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struct pci_dev *pci;
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struct snd_sb *chip;
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#ifdef SUPPORT_JOYSTICK
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struct gameport *gameport;
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#endif
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};
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static const struct pci_device_id snd_als4000_ids[] = {
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{ 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */
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{ 0, }
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};
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MODULE_DEVICE_TABLE(pci, snd_als4000_ids);
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enum als4k_iobase_t {
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/* IOx: B == Byte, W = Word, D = DWord; SPECS_PAGE: 37 */
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ALS4K_IOD_00_AC97_ACCESS = 0x00,
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ALS4K_IOW_04_AC97_READ = 0x04,
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ALS4K_IOB_06_AC97_STATUS = 0x06,
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ALS4K_IOB_07_IRQSTATUS = 0x07,
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ALS4K_IOD_08_GCR_DATA = 0x08,
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ALS4K_IOB_0C_GCR_INDEX = 0x0c,
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ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU = 0x0e,
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ALS4K_IOB_10_ADLIB_ADDR0 = 0x10,
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ALS4K_IOB_11_ADLIB_ADDR1 = 0x11,
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ALS4K_IOB_12_ADLIB_ADDR2 = 0x12,
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ALS4K_IOB_13_ADLIB_ADDR3 = 0x13,
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ALS4K_IOB_14_MIXER_INDEX = 0x14,
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ALS4K_IOB_15_MIXER_DATA = 0x15,
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ALS4K_IOB_16_ESP_RESET = 0x16,
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ALS4K_IOB_16_ACK_FOR_CR1E = 0x16, /* 2nd function */
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ALS4K_IOB_18_OPL_ADDR0 = 0x18,
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ALS4K_IOB_19_OPL_ADDR1 = 0x19,
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ALS4K_IOB_1A_ESP_RD_DATA = 0x1a,
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ALS4K_IOB_1C_ESP_CMD_DATA = 0x1c,
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ALS4K_IOB_1C_ESP_WR_STATUS = 0x1c, /* 2nd function */
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ALS4K_IOB_1E_ESP_RD_STATUS8 = 0x1e,
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ALS4K_IOB_1F_ESP_RD_STATUS16 = 0x1f,
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ALS4K_IOB_20_ESP_GAMEPORT_200 = 0x20,
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ALS4K_IOB_21_ESP_GAMEPORT_201 = 0x21,
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ALS4K_IOB_30_MIDI_DATA = 0x30,
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ALS4K_IOB_31_MIDI_STATUS = 0x31,
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ALS4K_IOB_31_MIDI_COMMAND = 0x31, /* 2nd function */
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};
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enum als4k_iobase_0e_t {
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ALS4K_IOB_0E_MPU_IRQ = 0x10,
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ALS4K_IOB_0E_CR1E_IRQ = 0x40,
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ALS4K_IOB_0E_SB_DMA_IRQ = 0x80,
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};
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enum als4k_gcr_t { /* all registers 32bit wide; SPECS_PAGE: 38 to 42 */
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ALS4K_GCR8C_MISC_CTRL = 0x8c,
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ALS4K_GCR90_TEST_MODE_REG = 0x90,
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ALS4K_GCR91_DMA0_ADDR = 0x91,
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ALS4K_GCR92_DMA0_MODE_COUNT = 0x92,
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ALS4K_GCR93_DMA1_ADDR = 0x93,
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ALS4K_GCR94_DMA1_MODE_COUNT = 0x94,
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ALS4K_GCR95_DMA3_ADDR = 0x95,
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ALS4K_GCR96_DMA3_MODE_COUNT = 0x96,
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ALS4K_GCR99_DMA_EMULATION_CTRL = 0x99,
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ALS4K_GCRA0_FIFO1_CURRENT_ADDR = 0xa0,
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ALS4K_GCRA1_FIFO1_STATUS_BYTECOUNT = 0xa1,
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ALS4K_GCRA2_FIFO2_PCIADDR = 0xa2,
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ALS4K_GCRA3_FIFO2_COUNT = 0xa3,
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ALS4K_GCRA4_FIFO2_CURRENT_ADDR = 0xa4,
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ALS4K_GCRA5_FIFO1_STATUS_BYTECOUNT = 0xa5,
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ALS4K_GCRA6_PM_CTRL = 0xa6,
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ALS4K_GCRA7_PCI_ACCESS_STORAGE = 0xa7,
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ALS4K_GCRA8_LEGACY_CFG1 = 0xa8,
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ALS4K_GCRA9_LEGACY_CFG2 = 0xa9,
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ALS4K_GCRFF_DUMMY_SCRATCH = 0xff,
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};
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enum als4k_gcr8c_t {
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ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE = 0x8000,
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ALS4K_GCR8C_CHIP_REV_MASK = 0xf0000
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};
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static inline void snd_als4k_iobase_writeb(unsigned long iobase,
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enum als4k_iobase_t reg,
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u8 val)
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{
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outb(val, iobase + reg);
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}
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static inline void snd_als4k_iobase_writel(unsigned long iobase,
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enum als4k_iobase_t reg,
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u32 val)
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{
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outl(val, iobase + reg);
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}
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static inline u8 snd_als4k_iobase_readb(unsigned long iobase,
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enum als4k_iobase_t reg)
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{
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return inb(iobase + reg);
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}
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static inline u32 snd_als4k_iobase_readl(unsigned long iobase,
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enum als4k_iobase_t reg)
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{
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return inl(iobase + reg);
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}
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static inline void snd_als4k_gcr_write_addr(unsigned long iobase,
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enum als4k_gcr_t reg,
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u32 val)
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{
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snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg);
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snd_als4k_iobase_writel(iobase, ALS4K_IOD_08_GCR_DATA, val);
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}
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static inline void snd_als4k_gcr_write(struct snd_sb *sb,
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enum als4k_gcr_t reg,
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u32 val)
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{
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snd_als4k_gcr_write_addr(sb->alt_port, reg, val);
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}
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static inline u32 snd_als4k_gcr_read_addr(unsigned long iobase,
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enum als4k_gcr_t reg)
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{
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/* SPECS_PAGE: 37/38 */
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snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg);
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return snd_als4k_iobase_readl(iobase, ALS4K_IOD_08_GCR_DATA);
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}
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static inline u32 snd_als4k_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg)
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{
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return snd_als4k_gcr_read_addr(sb->alt_port, reg);
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}
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enum als4k_cr_t { /* all registers 8bit wide; SPECS_PAGE: 20 to 23 */
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ALS4K_CR0_SB_CONFIG = 0x00,
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ALS4K_CR2_MISC_CONTROL = 0x02,
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ALS4K_CR3_CONFIGURATION = 0x03,
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ALS4K_CR17_FIFO_STATUS = 0x17,
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ALS4K_CR18_ESP_MAJOR_VERSION = 0x18,
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ALS4K_CR19_ESP_MINOR_VERSION = 0x19,
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ALS4K_CR1A_MPU401_UART_MODE_CONTROL = 0x1a,
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ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO = 0x1c,
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ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI = 0x1d,
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ALS4K_CR1E_FIFO2_CONTROL = 0x1e, /* secondary PCM FIFO (recording) */
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ALS4K_CR3A_MISC_CONTROL = 0x3a,
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ALS4K_CR3B_CRC32_BYTE0 = 0x3b, /* for testing, activate via CR3A */
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ALS4K_CR3C_CRC32_BYTE1 = 0x3c,
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ALS4K_CR3D_CRC32_BYTE2 = 0x3d,
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ALS4K_CR3E_CRC32_BYTE3 = 0x3e,
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};
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enum als4k_cr0_t {
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ALS4K_CR0_DMA_CONTIN_MODE_CTRL = 0x02, /* IRQ/FIFO controlled for 0/1 */
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ALS4K_CR0_DMA_90H_MODE_CTRL = 0x04, /* IRQ/FIFO controlled for 0/1 */
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ALS4K_CR0_MX80_81_REG_WRITE_ENABLE = 0x80,
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};
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static inline void snd_als4_cr_write(struct snd_sb *chip,
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enum als4k_cr_t reg,
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u8 data)
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{
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/* Control Register is reg | 0xc0 (bit 7, 6 set) on sbmixer_index
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* NOTE: assumes chip->mixer_lock to be locked externally already!
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* SPECS_PAGE: 6 */
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snd_sbmixer_write(chip, reg | 0xc0, data);
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}
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static inline u8 snd_als4_cr_read(struct snd_sb *chip,
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enum als4k_cr_t reg)
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{
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/* NOTE: assumes chip->mixer_lock to be locked externally already! */
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return snd_sbmixer_read(chip, reg | 0xc0);
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}
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static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate)
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{
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if (!(chip->mode & SB_RATE_LOCK)) {
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snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT);
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snd_sbdsp_command(chip, rate>>8);
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snd_sbdsp_command(chip, rate);
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}
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}
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static inline void snd_als4000_set_capture_dma(struct snd_sb *chip,
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dma_addr_t addr, unsigned size)
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{
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/* SPECS_PAGE: 40 */
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snd_als4k_gcr_write(chip, ALS4K_GCRA2_FIFO2_PCIADDR, addr);
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snd_als4k_gcr_write(chip, ALS4K_GCRA3_FIFO2_COUNT, (size-1));
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}
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static inline void snd_als4000_set_playback_dma(struct snd_sb *chip,
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dma_addr_t addr,
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unsigned size)
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{
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/* SPECS_PAGE: 38 */
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snd_als4k_gcr_write(chip, ALS4K_GCR91_DMA0_ADDR, addr);
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snd_als4k_gcr_write(chip, ALS4K_GCR92_DMA0_MODE_COUNT,
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(size-1)|0x180000);
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}
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#define ALS4000_FORMAT_SIGNED (1<<0)
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#define ALS4000_FORMAT_16BIT (1<<1)
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#define ALS4000_FORMAT_STEREO (1<<2)
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static int snd_als4000_get_format(struct snd_pcm_runtime *runtime)
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{
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int result;
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result = 0;
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if (snd_pcm_format_signed(runtime->format))
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result |= ALS4000_FORMAT_SIGNED;
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if (snd_pcm_format_physical_width(runtime->format) == 16)
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result |= ALS4000_FORMAT_16BIT;
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if (runtime->channels > 1)
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result |= ALS4000_FORMAT_STEREO;
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return result;
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}
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/* structure for setting up playback */
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static const struct {
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unsigned char dsp_cmd, dma_on, dma_off, format;
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} playback_cmd_vals[]={
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/* ALS4000_FORMAT_U8_MONO */
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{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO },
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/* ALS4000_FORMAT_S8_MONO */
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{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO },
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/* ALS4000_FORMAT_U16L_MONO */
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{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO },
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/* ALS4000_FORMAT_S16L_MONO */
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{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO },
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/* ALS4000_FORMAT_U8_STEREO */
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{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO },
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/* ALS4000_FORMAT_S8_STEREO */
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{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO },
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/* ALS4000_FORMAT_U16L_STEREO */
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{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO },
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/* ALS4000_FORMAT_S16L_STEREO */
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{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO },
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};
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#define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format])
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/* structure for setting up capture */
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enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 };
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static const unsigned char capture_cmd_vals[]=
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{
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CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */
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CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */
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CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */
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CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */
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CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */
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CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */
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CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */
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CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */
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};
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#define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format])
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static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_sb *chip = snd_pcm_substream_chip(substream);
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struct snd_pcm_runtime *runtime = substream->runtime;
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unsigned long size;
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unsigned count;
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chip->capture_format = snd_als4000_get_format(runtime);
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size = snd_pcm_lib_buffer_bytes(substream);
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count = snd_pcm_lib_period_bytes(substream);
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if (chip->capture_format & ALS4000_FORMAT_16BIT)
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count >>= 1;
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count--;
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spin_lock_irq(&chip->reg_lock);
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snd_als4000_set_rate(chip, runtime->rate);
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snd_als4000_set_capture_dma(chip, runtime->dma_addr, size);
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spin_unlock_irq(&chip->reg_lock);
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spin_lock_irq(&chip->mixer_lock);
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snd_als4_cr_write(chip, ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO, count & 0xff);
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snd_als4_cr_write(chip, ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI, count >> 8);
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spin_unlock_irq(&chip->mixer_lock);
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return 0;
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}
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static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_sb *chip = snd_pcm_substream_chip(substream);
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struct snd_pcm_runtime *runtime = substream->runtime;
|
|
unsigned long size;
|
|
unsigned count;
|
|
|
|
chip->playback_format = snd_als4000_get_format(runtime);
|
|
|
|
size = snd_pcm_lib_buffer_bytes(substream);
|
|
count = snd_pcm_lib_period_bytes(substream);
|
|
|
|
if (chip->playback_format & ALS4000_FORMAT_16BIT)
|
|
count >>= 1;
|
|
count--;
|
|
|
|
/* FIXME: from second playback on, there's a lot more clicks and pops
|
|
* involved here than on first playback. Fiddling with
|
|
* tons of different settings didn't help (DMA, speaker on/off,
|
|
* reordering, ...). Something seems to get enabled on playback
|
|
* that I haven't found out how to disable again, which then causes
|
|
* the switching pops to reach the speakers the next time here. */
|
|
spin_lock_irq(&chip->reg_lock);
|
|
snd_als4000_set_rate(chip, runtime->rate);
|
|
snd_als4000_set_playback_dma(chip, runtime->dma_addr, size);
|
|
|
|
/* SPEAKER_ON not needed, since dma_on seems to also enable speaker */
|
|
/* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */
|
|
snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd);
|
|
snd_sbdsp_command(chip, playback_cmd(chip).format);
|
|
snd_sbdsp_command(chip, count & 0xff);
|
|
snd_sbdsp_command(chip, count >> 8);
|
|
snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
int result = 0;
|
|
|
|
/* FIXME race condition in here!!!
|
|
chip->mode non-atomic update gets consistently protected
|
|
by reg_lock always, _except_ for this place!!
|
|
Probably need to take reg_lock as outer (or inner??) lock, too.
|
|
(or serialize both lock operations? probably not, though... - racy?)
|
|
*/
|
|
spin_lock(&chip->mixer_lock);
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
case SNDRV_PCM_TRIGGER_RESUME:
|
|
chip->mode |= SB_RATE_LOCK_CAPTURE;
|
|
snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL,
|
|
capture_cmd(chip));
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
case SNDRV_PCM_TRIGGER_SUSPEND:
|
|
chip->mode &= ~SB_RATE_LOCK_CAPTURE;
|
|
snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL,
|
|
capture_cmd(chip));
|
|
break;
|
|
default:
|
|
result = -EINVAL;
|
|
break;
|
|
}
|
|
spin_unlock(&chip->mixer_lock);
|
|
return result;
|
|
}
|
|
|
|
static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
int result = 0;
|
|
|
|
spin_lock(&chip->reg_lock);
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
case SNDRV_PCM_TRIGGER_RESUME:
|
|
chip->mode |= SB_RATE_LOCK_PLAYBACK;
|
|
snd_sbdsp_command(chip, playback_cmd(chip).dma_on);
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
case SNDRV_PCM_TRIGGER_SUSPEND:
|
|
snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
|
|
chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
|
|
break;
|
|
default:
|
|
result = -EINVAL;
|
|
break;
|
|
}
|
|
spin_unlock(&chip->reg_lock);
|
|
return result;
|
|
}
|
|
|
|
static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
unsigned int result;
|
|
|
|
spin_lock(&chip->reg_lock);
|
|
result = snd_als4k_gcr_read(chip, ALS4K_GCRA4_FIFO2_CURRENT_ADDR);
|
|
spin_unlock(&chip->reg_lock);
|
|
result &= 0xffff;
|
|
return bytes_to_frames( substream->runtime, result );
|
|
}
|
|
|
|
static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
unsigned result;
|
|
|
|
spin_lock(&chip->reg_lock);
|
|
result = snd_als4k_gcr_read(chip, ALS4K_GCRA0_FIFO1_CURRENT_ADDR);
|
|
spin_unlock(&chip->reg_lock);
|
|
result &= 0xffff;
|
|
return bytes_to_frames( substream->runtime, result );
|
|
}
|
|
|
|
/* FIXME: this IRQ routine doesn't really support IRQ sharing (we always
|
|
* return IRQ_HANDLED no matter whether we actually had an IRQ flag or not).
|
|
* ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK
|
|
* the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ
|
|
* register (alt_port + ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU). Probably something
|
|
* could be optimized here to query/write one register only...
|
|
* And even if both registers need to be queried, then there's still the
|
|
* question of whether it's actually correct to ACK PCI IRQ before reading
|
|
* SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear*
|
|
* SB IRQ status.
|
|
* (hmm, SPECS_PAGE: 38 mentions it the other way around!)
|
|
* And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS??
|
|
* */
|
|
static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id)
|
|
{
|
|
struct snd_sb *chip = dev_id;
|
|
unsigned pci_irqstatus;
|
|
unsigned sb_irqstatus;
|
|
|
|
/* find out which bit of the ALS4000 PCI block produced the interrupt,
|
|
SPECS_PAGE: 38, 5 */
|
|
pci_irqstatus = snd_als4k_iobase_readb(chip->alt_port,
|
|
ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU);
|
|
if ((pci_irqstatus & ALS4K_IOB_0E_SB_DMA_IRQ)
|
|
&& (chip->playback_substream)) /* playback */
|
|
snd_pcm_period_elapsed(chip->playback_substream);
|
|
if ((pci_irqstatus & ALS4K_IOB_0E_CR1E_IRQ)
|
|
&& (chip->capture_substream)) /* capturing */
|
|
snd_pcm_period_elapsed(chip->capture_substream);
|
|
if ((pci_irqstatus & ALS4K_IOB_0E_MPU_IRQ)
|
|
&& (chip->rmidi)) /* MPU401 interrupt */
|
|
snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
|
|
/* ACK the PCI block IRQ */
|
|
snd_als4k_iobase_writeb(chip->alt_port,
|
|
ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU, pci_irqstatus);
|
|
|
|
spin_lock(&chip->mixer_lock);
|
|
/* SPECS_PAGE: 20 */
|
|
sb_irqstatus = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
|
|
spin_unlock(&chip->mixer_lock);
|
|
|
|
if (sb_irqstatus & SB_IRQTYPE_8BIT)
|
|
snd_sb_ack_8bit(chip);
|
|
if (sb_irqstatus & SB_IRQTYPE_16BIT)
|
|
snd_sb_ack_16bit(chip);
|
|
if (sb_irqstatus & SB_IRQTYPE_MPUIN)
|
|
inb(chip->mpu_port);
|
|
if (sb_irqstatus & ALS4K_IRQTYPE_CR1E_DMA)
|
|
snd_als4k_iobase_readb(chip->alt_port,
|
|
ALS4K_IOB_16_ACK_FOR_CR1E);
|
|
|
|
/* dev_dbg(chip->card->dev, "als4000: irq 0x%04x 0x%04x\n",
|
|
pci_irqstatus, sb_irqstatus); */
|
|
|
|
/* only ack the things we actually handled above */
|
|
return IRQ_RETVAL(
|
|
(pci_irqstatus & (ALS4K_IOB_0E_SB_DMA_IRQ|ALS4K_IOB_0E_CR1E_IRQ|
|
|
ALS4K_IOB_0E_MPU_IRQ))
|
|
|| (sb_irqstatus & (SB_IRQTYPE_8BIT|SB_IRQTYPE_16BIT|
|
|
SB_IRQTYPE_MPUIN|ALS4K_IRQTYPE_CR1E_DMA))
|
|
);
|
|
}
|
|
|
|
/*****************************************************************/
|
|
|
|
static const struct snd_pcm_hardware snd_als4000_playback =
|
|
{
|
|
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID),
|
|
.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
|
|
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
|
|
.rate_min = 4000,
|
|
.rate_max = 48000,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = 65536,
|
|
.period_bytes_min = 64,
|
|
.period_bytes_max = 65536,
|
|
.periods_min = 1,
|
|
.periods_max = 1024,
|
|
.fifo_size = 0
|
|
};
|
|
|
|
static const struct snd_pcm_hardware snd_als4000_capture =
|
|
{
|
|
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID),
|
|
.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
|
|
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
|
|
.rate_min = 4000,
|
|
.rate_max = 48000,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = 65536,
|
|
.period_bytes_min = 64,
|
|
.period_bytes_max = 65536,
|
|
.periods_min = 1,
|
|
.periods_max = 1024,
|
|
.fifo_size = 0
|
|
};
|
|
|
|
/*****************************************************************/
|
|
|
|
static int snd_als4000_playback_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
|
|
chip->playback_substream = substream;
|
|
runtime->hw = snd_als4000_playback;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_als4000_playback_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
|
|
chip->playback_substream = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_als4000_capture_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
|
|
chip->capture_substream = substream;
|
|
runtime->hw = snd_als4000_capture;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_als4000_capture_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_sb *chip = snd_pcm_substream_chip(substream);
|
|
|
|
chip->capture_substream = NULL;
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************/
|
|
|
|
static const struct snd_pcm_ops snd_als4000_playback_ops = {
|
|
.open = snd_als4000_playback_open,
|
|
.close = snd_als4000_playback_close,
|
|
.prepare = snd_als4000_playback_prepare,
|
|
.trigger = snd_als4000_playback_trigger,
|
|
.pointer = snd_als4000_playback_pointer
|
|
};
|
|
|
|
static const struct snd_pcm_ops snd_als4000_capture_ops = {
|
|
.open = snd_als4000_capture_open,
|
|
.close = snd_als4000_capture_close,
|
|
.prepare = snd_als4000_capture_prepare,
|
|
.trigger = snd_als4000_capture_trigger,
|
|
.pointer = snd_als4000_capture_pointer
|
|
};
|
|
|
|
static int snd_als4000_pcm(struct snd_sb *chip, int device)
|
|
{
|
|
struct snd_pcm *pcm;
|
|
int err;
|
|
|
|
err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm);
|
|
if (err < 0)
|
|
return err;
|
|
pcm->private_data = chip;
|
|
pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops);
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops);
|
|
|
|
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
|
|
&chip->pci->dev, 64*1024, 64*1024);
|
|
|
|
chip->pcm = pcm;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************/
|
|
|
|
static void snd_als4000_set_addr(unsigned long iobase,
|
|
unsigned int sb_io,
|
|
unsigned int mpu_io,
|
|
unsigned int opl_io,
|
|
unsigned int game_io)
|
|
{
|
|
u32 cfg1 = 0;
|
|
u32 cfg2 = 0;
|
|
|
|
if (mpu_io > 0)
|
|
cfg2 |= (mpu_io | 1) << 16;
|
|
if (sb_io > 0)
|
|
cfg2 |= (sb_io | 1);
|
|
if (game_io > 0)
|
|
cfg1 |= (game_io | 1) << 16;
|
|
if (opl_io > 0)
|
|
cfg1 |= (opl_io | 1);
|
|
snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA8_LEGACY_CFG1, cfg1);
|
|
snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA9_LEGACY_CFG2, cfg2);
|
|
}
|
|
|
|
static void snd_als4000_configure(struct snd_sb *chip)
|
|
{
|
|
u8 tmp;
|
|
int i;
|
|
|
|
/* do some more configuration */
|
|
spin_lock_irq(&chip->mixer_lock);
|
|
tmp = snd_als4_cr_read(chip, ALS4K_CR0_SB_CONFIG);
|
|
snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG,
|
|
tmp|ALS4K_CR0_MX80_81_REG_WRITE_ENABLE);
|
|
/* always select DMA channel 0, since we do not actually use DMA
|
|
* SPECS_PAGE: 19/20 */
|
|
snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0);
|
|
snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG,
|
|
tmp & ~ALS4K_CR0_MX80_81_REG_WRITE_ENABLE);
|
|
spin_unlock_irq(&chip->mixer_lock);
|
|
|
|
spin_lock_irq(&chip->reg_lock);
|
|
/* enable interrupts */
|
|
snd_als4k_gcr_write(chip, ALS4K_GCR8C_MISC_CTRL,
|
|
ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE);
|
|
|
|
/* SPECS_PAGE: 39 */
|
|
for (i = ALS4K_GCR91_DMA0_ADDR; i <= ALS4K_GCR96_DMA3_MODE_COUNT; ++i)
|
|
snd_als4k_gcr_write(chip, i, 0);
|
|
/* enable burst mode to prevent dropouts during high PCI bus usage */
|
|
snd_als4k_gcr_write(chip, ALS4K_GCR99_DMA_EMULATION_CTRL,
|
|
(snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL) & ~0x07) | 0x04);
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
}
|
|
|
|
#ifdef SUPPORT_JOYSTICK
|
|
static int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev)
|
|
{
|
|
struct gameport *gp;
|
|
struct resource *r;
|
|
int io_port;
|
|
|
|
if (joystick_port[dev] == 0)
|
|
return -ENODEV;
|
|
|
|
if (joystick_port[dev] == 1) { /* auto-detect */
|
|
for (io_port = 0x200; io_port <= 0x218; io_port += 8) {
|
|
r = request_region(io_port, 8, "ALS4000 gameport");
|
|
if (r)
|
|
break;
|
|
}
|
|
} else {
|
|
io_port = joystick_port[dev];
|
|
r = request_region(io_port, 8, "ALS4000 gameport");
|
|
}
|
|
|
|
if (!r) {
|
|
dev_warn(&acard->pci->dev, "cannot reserve joystick ports\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
acard->gameport = gp = gameport_allocate_port();
|
|
if (!gp) {
|
|
dev_err(&acard->pci->dev, "cannot allocate memory for gameport\n");
|
|
release_and_free_resource(r);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
gameport_set_name(gp, "ALS4000 Gameport");
|
|
gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci));
|
|
gameport_set_dev_parent(gp, &acard->pci->dev);
|
|
gp->io = io_port;
|
|
gameport_set_port_data(gp, r);
|
|
|
|
/* Enable legacy joystick port */
|
|
snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1);
|
|
|
|
gameport_register_port(acard->gameport);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void snd_als4000_free_gameport(struct snd_card_als4000 *acard)
|
|
{
|
|
if (acard->gameport) {
|
|
struct resource *r = gameport_get_port_data(acard->gameport);
|
|
|
|
gameport_unregister_port(acard->gameport);
|
|
acard->gameport = NULL;
|
|
|
|
/* disable joystick */
|
|
snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0);
|
|
|
|
release_and_free_resource(r);
|
|
}
|
|
}
|
|
#else
|
|
static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; }
|
|
static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { }
|
|
#endif
|
|
|
|
static void snd_card_als4000_free( struct snd_card *card )
|
|
{
|
|
struct snd_card_als4000 *acard = card->private_data;
|
|
|
|
/* make sure that interrupts are disabled */
|
|
snd_als4k_gcr_write_addr(acard->iobase, ALS4K_GCR8C_MISC_CTRL, 0);
|
|
/* free resources */
|
|
snd_als4000_free_gameport(acard);
|
|
pci_release_regions(acard->pci);
|
|
pci_disable_device(acard->pci);
|
|
}
|
|
|
|
static int snd_card_als4000_probe(struct pci_dev *pci,
|
|
const struct pci_device_id *pci_id)
|
|
{
|
|
static int dev;
|
|
struct snd_card *card;
|
|
struct snd_card_als4000 *acard;
|
|
unsigned long iobase;
|
|
struct snd_sb *chip;
|
|
struct snd_opl3 *opl3;
|
|
unsigned short word;
|
|
int err;
|
|
|
|
if (dev >= SNDRV_CARDS)
|
|
return -ENODEV;
|
|
if (!enable[dev]) {
|
|
dev++;
|
|
return -ENOENT;
|
|
}
|
|
|
|
/* enable PCI device */
|
|
if ((err = pci_enable_device(pci)) < 0) {
|
|
return err;
|
|
}
|
|
/* check, if we can restrict PCI DMA transfers to 24 bits */
|
|
if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 ||
|
|
dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) {
|
|
dev_err(&pci->dev, "architecture does not support 24bit PCI busmaster DMA\n");
|
|
pci_disable_device(pci);
|
|
return -ENXIO;
|
|
}
|
|
|
|
if ((err = pci_request_regions(pci, "ALS4000")) < 0) {
|
|
pci_disable_device(pci);
|
|
return err;
|
|
}
|
|
iobase = pci_resource_start(pci, 0);
|
|
|
|
pci_read_config_word(pci, PCI_COMMAND, &word);
|
|
pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO);
|
|
pci_set_master(pci);
|
|
|
|
err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
|
|
sizeof(*acard) /* private_data: acard */,
|
|
&card);
|
|
if (err < 0) {
|
|
pci_release_regions(pci);
|
|
pci_disable_device(pci);
|
|
return err;
|
|
}
|
|
|
|
acard = card->private_data;
|
|
acard->pci = pci;
|
|
acard->iobase = iobase;
|
|
card->private_free = snd_card_als4000_free;
|
|
|
|
/* disable all legacy ISA stuff */
|
|
snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0);
|
|
|
|
if ((err = snd_sbdsp_create(card,
|
|
iobase + ALS4K_IOB_10_ADLIB_ADDR0,
|
|
pci->irq,
|
|
/* internally registered as IRQF_SHARED in case of ALS4000 SB */
|
|
snd_als4000_interrupt,
|
|
-1,
|
|
-1,
|
|
SB_HW_ALS4000,
|
|
&chip)) < 0) {
|
|
goto out_err;
|
|
}
|
|
acard->chip = chip;
|
|
|
|
chip->pci = pci;
|
|
chip->alt_port = iobase;
|
|
|
|
snd_als4000_configure(chip);
|
|
|
|
strcpy(card->driver, "ALS4000");
|
|
strcpy(card->shortname, "Avance Logic ALS4000");
|
|
sprintf(card->longname, "%s at 0x%lx, irq %i",
|
|
card->shortname, chip->alt_port, chip->irq);
|
|
|
|
if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000,
|
|
iobase + ALS4K_IOB_30_MIDI_DATA,
|
|
MPU401_INFO_INTEGRATED |
|
|
MPU401_INFO_IRQ_HOOK,
|
|
-1, &chip->rmidi)) < 0) {
|
|
dev_err(&pci->dev, "no MPU-401 device at 0x%lx?\n",
|
|
iobase + ALS4K_IOB_30_MIDI_DATA);
|
|
goto out_err;
|
|
}
|
|
/* FIXME: ALS4000 has interesting MPU401 configuration features
|
|
* at ALS4K_CR1A_MPU401_UART_MODE_CONTROL
|
|
* (pass-thru / UART switching, fast MIDI clock, etc.),
|
|
* however there doesn't seem to be an ALSA API for this...
|
|
* SPECS_PAGE: 21 */
|
|
|
|
if ((err = snd_als4000_pcm(chip, 0)) < 0) {
|
|
goto out_err;
|
|
}
|
|
if ((err = snd_sbmixer_new(chip)) < 0) {
|
|
goto out_err;
|
|
}
|
|
|
|
if (snd_opl3_create(card,
|
|
iobase + ALS4K_IOB_10_ADLIB_ADDR0,
|
|
iobase + ALS4K_IOB_12_ADLIB_ADDR2,
|
|
OPL3_HW_AUTO, 1, &opl3) < 0) {
|
|
dev_err(&pci->dev, "no OPL device at 0x%lx-0x%lx?\n",
|
|
iobase + ALS4K_IOB_10_ADLIB_ADDR0,
|
|
iobase + ALS4K_IOB_12_ADLIB_ADDR2);
|
|
} else {
|
|
if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
|
|
goto out_err;
|
|
}
|
|
}
|
|
|
|
snd_als4000_create_gameport(acard, dev);
|
|
|
|
if ((err = snd_card_register(card)) < 0) {
|
|
goto out_err;
|
|
}
|
|
pci_set_drvdata(pci, card);
|
|
dev++;
|
|
err = 0;
|
|
goto out;
|
|
|
|
out_err:
|
|
snd_card_free(card);
|
|
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
static void snd_card_als4000_remove(struct pci_dev *pci)
|
|
{
|
|
snd_card_free(pci_get_drvdata(pci));
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int snd_als4000_suspend(struct device *dev)
|
|
{
|
|
struct snd_card *card = dev_get_drvdata(dev);
|
|
struct snd_card_als4000 *acard = card->private_data;
|
|
struct snd_sb *chip = acard->chip;
|
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
|
|
|
|
snd_sbmixer_suspend(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_als4000_resume(struct device *dev)
|
|
{
|
|
struct snd_card *card = dev_get_drvdata(dev);
|
|
struct snd_card_als4000 *acard = card->private_data;
|
|
struct snd_sb *chip = acard->chip;
|
|
|
|
snd_als4000_configure(chip);
|
|
snd_sbdsp_reset(chip);
|
|
snd_sbmixer_resume(chip);
|
|
|
|
#ifdef SUPPORT_JOYSTICK
|
|
if (acard->gameport)
|
|
snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1);
|
|
#endif
|
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
|
|
return 0;
|
|
}
|
|
|
|
static SIMPLE_DEV_PM_OPS(snd_als4000_pm, snd_als4000_suspend, snd_als4000_resume);
|
|
#define SND_ALS4000_PM_OPS &snd_als4000_pm
|
|
#else
|
|
#define SND_ALS4000_PM_OPS NULL
|
|
#endif /* CONFIG_PM_SLEEP */
|
|
|
|
static struct pci_driver als4000_driver = {
|
|
.name = KBUILD_MODNAME,
|
|
.id_table = snd_als4000_ids,
|
|
.probe = snd_card_als4000_probe,
|
|
.remove = snd_card_als4000_remove,
|
|
.driver = {
|
|
.pm = SND_ALS4000_PM_OPS,
|
|
},
|
|
};
|
|
|
|
module_pci_driver(als4000_driver);
|