// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (c) by Jaroslav Kysela <[email protected]> * James Courtier-Dutton <[email protected]> * Oswald Buddenhagen <[email protected]> * Creative Labs, Inc. * * Routines for control of EMU10K1 chips */ #include <linux/sched.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/iommu.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/vmalloc.h> #include <linux/mutex.h> #include <sound/core.h> #include <sound/emu10k1.h> #include <linux/firmware.h> #include "p16v.h" #include "tina2.h" #include "p17v.h" #define HANA_FILENAME … #define DOCK_FILENAME … #define EMU1010B_FILENAME … #define MICRO_DOCK_FILENAME … #define EMU0404_FILENAME … #define EMU1010_NOTEBOOK_FILENAME … MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); /************************************************************************* * EMU10K1 init / done *************************************************************************/ void snd_emu10k1_voice_init(struct snd_emu10k1 *emu, int ch) { … } static const unsigned int spi_dac_init[] = …; static const unsigned int i2c_adc_init[][2] = …; static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir) { … } static void snd_emu10k1_audio_enable(struct snd_emu10k1 *emu) { … } int snd_emu10k1_done(struct snd_emu10k1 *emu) { … } /************************************************************************* * ECARD functional implementation *************************************************************************/ /* In A1 Silicon, these bits are in the HC register */ #define HOOKN_BIT … #define HANDN_BIT … #define PULSEN_BIT … #define EC_GDI1 … #define EC_GDI0 … #define EC_NUM_CONTROL_BITS … #define EC_AC3_DATA_SELN … #define EC_EE_DATA_SEL … #define EC_EE_CNTRL_SELN … #define EC_EECLK … #define EC_EECS … #define EC_EESDO … #define EC_TRIM_CSN … #define EC_TRIM_SCLK … #define EC_TRIM_SDATA … #define EC_TRIM_MUTEN … #define EC_ADCCAL … #define EC_ADCRSTN … #define EC_DACCAL … #define EC_DACMUTEN … #define EC_LEDN … #define EC_SPDIF0_SEL_SHIFT … #define EC_SPDIF1_SEL_SHIFT … #define EC_SPDIF0_SEL_MASK … #define EC_SPDIF1_SEL_MASK … #define EC_SPDIF0_SELECT(_x) … #define EC_SPDIF1_SELECT(_x) … #define EC_CURRENT_PROM_VERSION … #define EC_EEPROM_SIZE … /* Addresses for special values stored in to EEPROM */ #define EC_PROM_VERSION_ADDR … #define EC_BOARDREV0_ADDR … #define EC_BOARDREV1_ADDR … #define EC_LAST_PROMFILE_ADDR … #define EC_SERIALNUM_ADDR … #define EC_CHECKSUM_ADDR … /* Most of this stuff is pretty self-evident. According to the hardware * dudes, we need to leave the ADCCAL bit low in order to avoid a DC * offset problem. Weird. */ #define EC_RAW_RUN_MODE … #define EC_DEFAULT_ADC_GAIN … #define EC_DEFAULT_SPDIF0_SEL … #define EC_DEFAULT_SPDIF1_SEL … /************************************************************************** * @func Clock bits into the Ecard's control latch. The Ecard uses a * control latch will is loaded bit-serially by toggling the Modem control * lines from function 2 on the E8010. This function hides these details * and presents the illusion that we are actually writing to a distinct * register. */ static void snd_emu10k1_ecard_write(struct snd_emu10k1 *emu, unsigned int value) { … } /************************************************************************** * @func Set the gain of the ECARD's CS3310 Trim/gain controller. The * trim value consists of a 16bit value which is composed of two * 8 bit gain/trim values, one for the left channel and one for the * right channel. The following table maps from the Gain/Attenuation * value in decibels into the corresponding bit pattern for a single * channel. */ static void snd_emu10k1_ecard_setadcgain(struct snd_emu10k1 *emu, unsigned short gain) { … } static int snd_emu10k1_ecard_init(struct snd_emu10k1 *emu) { … } static int snd_emu10k1_cardbus_init(struct snd_emu10k1 *emu) { … } /* firmware file names, per model, init-fw and dock-fw (optional) */ static const char * const firmware_names[5][2] = …; static int snd_emu1010_load_firmware(struct snd_emu10k1 *emu, int dock, const struct firmware **fw) { … } static void snd_emu1010_load_dock_firmware(struct snd_emu10k1 *emu) { … } static void emu1010_dock_event(struct snd_emu10k1 *emu) { … } static void emu1010_clock_event(struct snd_emu10k1 *emu) { … } static void emu1010_work(struct work_struct *work) { … } static void emu1010_interrupt(struct snd_emu10k1 *emu) { … } /* * Current status of the driver: * ---------------------------- * * only 44.1/48kHz supported (the MS Win driver supports up to 192 kHz) * * PCM device nb. 2: * 16 x 16-bit playback - snd_emu10k1_fx8010_playback_ops * 16 x 32-bit capture - snd_emu10k1_capture_efx_ops */ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu) { … } /* * Create the EMU10K1 instance */ #ifdef CONFIG_PM_SLEEP static int alloc_pm_buffer(struct snd_emu10k1 *emu); static void free_pm_buffer(struct snd_emu10k1 *emu); #endif static void snd_emu10k1_free(struct snd_card *card) { … } static const struct snd_emu_chip_details emu_chip_details[] = …; /* * The chip (at least the Audigy 2 CA0102 chip, but most likely others, too) * has a problem that from time to time it likes to do few DMA reads a bit * beyond its normal allocation and gets very confused if these reads get * blocked by a IOMMU. * * This behaviour has been observed for the first (reserved) page * (for which it happens multiple times at every playback), often for various * synth pages and sometimes for PCM playback buffers and the page table * memory itself. * * As a workaround let's widen these DMA allocations by an extra page if we * detect that the device is behind a non-passthrough IOMMU. */ static void snd_emu10k1_detect_iommu(struct snd_emu10k1 *emu) { … } int snd_emu10k1_create(struct snd_card *card, struct pci_dev *pci, unsigned short extin_mask, unsigned short extout_mask, long max_cache_bytes, int enable_ir, uint subsystem) { … } #ifdef CONFIG_PM_SLEEP static const unsigned char saved_regs[] = …; static const unsigned char saved_regs_audigy[] = …; static int alloc_pm_buffer(struct snd_emu10k1 *emu) { … } static void free_pm_buffer(struct snd_emu10k1 *emu) { … } void snd_emu10k1_suspend_regs(struct snd_emu10k1 *emu) { … } void snd_emu10k1_resume_init(struct snd_emu10k1 *emu) { … } void snd_emu10k1_resume_regs(struct snd_emu10k1 *emu) { … } #endif
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