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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-09 06:14:34 +02:00
Cássio GabrielandTakashi Iwai
ed060707d4
The WaveFront driver still lacks support for suspend and resume in both the ISA and PnP driver tables. Wire the driver into ALSA PM by storing the WSS codec pointer in the card private data and adding shared suspend/resume callbacks. Resume cannot simply rerun snd_wavefront_start(), because with the default fx_raw=1 setting that would reset the synth on every resume and discard uploaded WaveFront RAM contents. Cache wavefront.os for PM, probe the ICS2115 after resume and only run the full reset/bootstrap path when the board comes back raw. When the firmware is still running, refresh the software slot bookkeeping and restore the MIDI routing state without forcing a synth reset. Also quiesce and restart the WaveFront MIDI output timer across suspend and resume so active rawmidi output does not race the PM transition. This restores the card to a usable baseline after resume while preserving uploaded samples and programs when the hardware state survives suspend. If the board resumes raw, userspace still needs to reload custom synth contents. Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com> Link: https://patch.msgid.link/20260427-wavefront-pm-v1-1-9c1b6a898673@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
144 lines
5.6 KiB
C
144 lines
5.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __SOUND_SND_WAVEFRONT_H__
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#define __SOUND_SND_WAVEFRONT_H__
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#include <sound/mpu401.h>
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#include <sound/hwdep.h>
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#include <sound/rawmidi.h>
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#include <sound/wavefront.h> /* generic OSS/ALSA/user-level wavefront header */
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/* MIDI interface */
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struct _snd_wavefront_midi;
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struct _snd_wavefront_card;
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struct _snd_wavefront;
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struct snd_wss;
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typedef struct _snd_wavefront_midi snd_wavefront_midi_t;
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typedef struct _snd_wavefront_card snd_wavefront_card_t;
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typedef struct _snd_wavefront snd_wavefront_t;
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typedef enum { internal_mpu = 0, external_mpu = 1 } snd_wavefront_mpu_id;
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struct _snd_wavefront_midi {
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unsigned long base; /* I/O port address */
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char isvirtual; /* doing virtual MIDI stuff ? */
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char istimer; /* timer is used */
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snd_wavefront_mpu_id output_mpu; /* most-recently-used */
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snd_wavefront_mpu_id input_mpu; /* most-recently-used */
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unsigned int mode[2]; /* MPU401_MODE_XXX */
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struct snd_rawmidi_substream *substream_output[2];
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struct snd_rawmidi_substream *substream_input[2];
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struct timer_list timer;
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snd_wavefront_card_t *timer_card;
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spinlock_t open;
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spinlock_t virtual; /* protects isvirtual */
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};
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#define OUTPUT_READY 0x40
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#define INPUT_AVAIL 0x80
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#define MPU_ACK 0xFE
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#define UART_MODE_ON 0x3F
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extern const struct snd_rawmidi_ops snd_wavefront_midi_output;
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extern const struct snd_rawmidi_ops snd_wavefront_midi_input;
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extern void snd_wavefront_midi_enable_virtual (snd_wavefront_card_t *);
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extern void snd_wavefront_midi_disable_virtual (snd_wavefront_card_t *);
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extern void snd_wavefront_midi_interrupt (snd_wavefront_card_t *);
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extern int snd_wavefront_midi_start (snd_wavefront_card_t *);
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void snd_wavefront_midi_suspend(snd_wavefront_card_t *card);
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void snd_wavefront_midi_resume(snd_wavefront_card_t *card);
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struct _snd_wavefront {
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unsigned long irq; /* "you were one, one of the few ..." */
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unsigned long base; /* low i/o port address */
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struct resource *res_base; /* i/o port resource allocation */
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#define mpu_data_port base
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#define mpu_command_port base + 1 /* write semantics */
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#define mpu_status_port base + 1 /* read semantics */
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#define data_port base + 2
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#define status_port base + 3 /* read semantics */
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#define control_port base + 3 /* write semantics */
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#define block_port base + 4 /* 16 bit, writeonly */
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#define last_block_port base + 6 /* 16 bit, writeonly */
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/* FX ports. These are mapped through the ICS2115 to the YS225.
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The ICS2115 takes care of flipping the relevant pins on the
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YS225 so that access to each of these ports does the right
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thing. Note: these are NOT documented by Turtle Beach.
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*/
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#define fx_status base + 8
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#define fx_op base + 8
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#define fx_lcr base + 9
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#define fx_dsp_addr base + 0xa
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#define fx_dsp_page base + 0xb
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#define fx_dsp_lsb base + 0xc
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#define fx_dsp_msb base + 0xd
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#define fx_mod_addr base + 0xe
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#define fx_mod_data base + 0xf
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volatile int irq_ok; /* set by interrupt handler */
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volatile int irq_cnt; /* ditto */
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char debug; /* debugging flags */
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int freemem; /* installed RAM, in bytes */
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char fw_version[2]; /* major = [0], minor = [1] */
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char hw_version[2]; /* major = [0], minor = [1] */
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char israw; /* needs Motorola microcode */
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char has_fx; /* has FX processor (Tropez+) */
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char fx_initialized; /* FX's register pages initialized */
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char prog_status[WF_MAX_PROGRAM]; /* WF_SLOT_* */
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char patch_status[WF_MAX_PATCH]; /* WF_SLOT_* */
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char sample_status[WF_MAX_SAMPLE]; /* WF_ST_* | WF_SLOT_* */
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int samples_used; /* how many */
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char interrupts_are_midi; /* h/w MPU interrupts enabled ? */
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char rom_samples_rdonly; /* can we write on ROM samples */
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char midi_in_to_synth; /* route external MIDI to synth */
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spinlock_t irq_lock;
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wait_queue_head_t interrupt_sleeper;
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snd_wavefront_midi_t midi; /* ICS2115 MIDI interface */
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struct snd_card *card;
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};
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struct _snd_wavefront_card {
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snd_wavefront_t wavefront;
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struct snd_wss *chip;
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#ifdef CONFIG_PNP
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struct pnp_dev *wss;
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struct pnp_dev *ctrl;
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struct pnp_dev *mpu;
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struct pnp_dev *synth;
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#endif /* CONFIG_PNP */
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};
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extern void snd_wavefront_internal_interrupt (snd_wavefront_card_t *card);
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void snd_wavefront_cache_firmware(snd_wavefront_t *dev);
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extern int snd_wavefront_start (snd_wavefront_t *dev);
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extern int snd_wavefront_detect (snd_wavefront_card_t *card);
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int snd_wavefront_resume_synth(snd_wavefront_card_t *card);
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extern int snd_wavefront_cmd (snd_wavefront_t *, int, unsigned char *,
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unsigned char *);
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extern int snd_wavefront_synth_ioctl (struct snd_hwdep *,
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struct file *,
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unsigned int cmd,
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unsigned long arg);
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extern int snd_wavefront_synth_open (struct snd_hwdep *, struct file *);
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extern int snd_wavefront_synth_release (struct snd_hwdep *, struct file *);
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/* FX processor - see also yss225.[ch] */
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extern int snd_wavefront_fx_start (snd_wavefront_t *);
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extern int snd_wavefront_fx_detect (snd_wavefront_t *);
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extern int snd_wavefront_fx_ioctl (struct snd_hwdep *,
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struct file *,
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unsigned int cmd,
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unsigned long arg);
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extern int snd_wavefront_fx_open (struct snd_hwdep *, struct file *);
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extern int snd_wavefront_fx_release (struct snd_hwdep *, struct file *);
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#endif /* __SOUND_SND_WAVEFRONT_H__ */
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