[27/41] ALSA: usb-audio: Constify audioformat pointer references

Message ID	20201123085347.19667-28-tiwai@suse.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=WmXX=E5=alsa-project.org=alsa-devel-bounces@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 116AA20732 From: Takashi Iwai <tiwai@suse.de> To: alsa-devel@alsa-project.org Subject: [PATCH 27/41] ALSA: usb-audio: Constify audioformat pointer references Date: Mon, 23 Nov 2020 09:53:33 +0100 Message-Id: <20201123085347.19667-28-tiwai@suse.de> In-Reply-To: <20201123085347.19667-1-tiwai@suse.de> References: <20201123085347.19667-1-tiwai@suse.de> Cc: Matwey Kornilov <matwey.kornilov@gmail.com>, Dylan Robinson <dylan_robinson@motu.com>, Keith Milner <kamilner@superlative.org> Precedence: list Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" <alsa-devel-bounces@alsa-project.org>
Series	USB audio refactoring for better implicit feedback support \| expand [00/41] USB audio refactoring for better implicit feedback support [01/41] ALSA: usb-audio: Handle discrete rates properly in hw constraints [02/41] ALSA: usb-audio: Don't call usb_set_interface() at trigger callback [03/41] ALSA: usb-audio: Check valid altsetting at parsing rates for UAC2/3 [04/41] ALSA: usb-audio: Check implicit feedback EP generically for UAC2 [05/41] ALSA: usb-audio: Add snd_usb_get_endpoint() helper [06/41] ALSA: usb-audio: Set and clear sync EP link properly [07/41] ALSA: usb-audio: Improve some debug prints [08/41] ALSA: usb-audio: Track implicit fb sync endpoint in audioformat list [09/41] ALSA: usb-audio: Move snd_usb_autoresume() call out of setup_hw_info() [10/41] ALSA: usb-audio: Add hw constraint for implicit fb sync [11/41] ALSA: usb-audio: Simplify hw_params rules [12/41] ALSA: usb-audio: Drop debug.h [13/41] ALSA: usb-audio: Avoid doubly initialization for implicit fb [14/41] ALSA: usb-audio: Create endpoint objects at parsing phase [15/41] ALSA: usb-audio: Drop keep_interface flag again [16/41] ALSA: usb-audio: Add snd_usb_get_host_interface() helper [17/41] ALSA: usb-audio: Don't set altsetting before initializing sample rate [18/41] ALSA: usb-audio: Pass snd_usb_audio object to quirk functions [19/41] ALSA: usb-audio: Simplify snd_usb_init_sample_rate() arguments [20/41] ALSA: usb-audio: Simplify snd_usb_init_pitch() arguments [21/41] ALSA: usb-audio: Stop both endpoints properly at error [22/41] ALSA: usb-audio: Set callbacks via snd_usb_endpoint_set_callback() [23/41] ALSA: usb-audio: Always set up the parameters after resume [24/41] ALSA: usb-audio: Fix EP matching for continuous rates [25/41] ALSA: usb-audio: Refactor endpoint management [26/41] ALSA: usb-audio: Fix possible stall of implicit fb packet ring-buffer [27/41] ALSA: usb-audio: Constify audioformat pointer references [28/41] ALSA: usb-audio: Use atomic_t for endpoint use_count [29/41] ALSA: usb-audio: Refactoring endpoint URB deactivation [30/41] ALSA: usb-audio: Drop unneeded snd_usb_substream fields [31/41] ALSA: usb-audio: Unify the code for the next packet size calculation [32/41] ALSA: usb-audio: Simplify rate_min/max and rates set up [33/41] ALSA: usb-audio: Replace slave/master terms [34/41] ALSA: usb-audio: Use unsigned char for iface and altsettings fields [35/41] ALSA: usb-audio: Show sync endpoint information in proc outputs [36/41] ALSA: usb-audio: Quirk for BOSS GT-001 [37/41] ALSA: usb-audio: Factor out the implicit feedback quirk code [38/41] ALSA: usb-audio: Add generic implicit fb parsing [39/41] ALSA: usb-audio: Add implicit_fb module option [40/41] ALSA: usb-audio: Fix quirks for other BOSS devices [41/41] ALSA: usb-audio: Fix MOTU M-Series quirks

diff --git a/sound/usb/card.h b/sound/usb/card.h index cde492e9581a..53f0ce61f858 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -120,7 +120,7 @@ struct snd_usb_endpoint { bool need_setup; /* (re-)need for configure? */ /* for hw constraints */ - struct audioformat *cur_audiofmt; + const struct audioformat *cur_audiofmt; unsigned int cur_rate; snd_pcm_format_t cur_format; unsigned int cur_channels; @@ -142,7 +142,7 @@ struct snd_usb_substream { int direction; /* playback or capture */ int interface; /* current interface */ int endpoint; /* assigned endpoint */ - struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ + const struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ struct snd_usb_power_domain *str_pd; /* UAC3 Power Domain for streaming path */ snd_pcm_format_t pcm_format; /* current audio format (for hw_params callback) */ unsigned int channels; /* current number of channels (for hw_params callback) */ diff --git a/sound/usb/clock.c b/sound/usb/clock.c index b869a711afbf..e940dcee792b 100644 --- a/sound/usb/clock.c +++ b/sound/usb/clock.c @@ -152,7 +152,7 @@ static int uac_clock_selector_set_val(struct snd_usb_audio *chip, int selector_i } static bool uac_clock_source_is_valid_quirk(struct snd_usb_audio *chip, - struct audioformat *fmt, + const struct audioformat *fmt, int source_id) { bool ret = false; @@ -215,7 +215,7 @@ static bool uac_clock_source_is_valid_quirk(struct snd_usb_audio *chip, } static bool uac_clock_source_is_valid(struct snd_usb_audio *chip, - struct audioformat *fmt, + const struct audioformat *fmt, int source_id) { int err; @@ -264,7 +264,7 @@ static bool uac_clock_source_is_valid(struct snd_usb_audio *chip, } static int __uac_clock_find_source(struct snd_usb_audio *chip, - struct audioformat *fmt, int entity_id, + const struct audioformat *fmt, int entity_id, unsigned long *visited, bool validate) { struct uac_clock_source_descriptor *source; @@ -358,7 +358,7 @@ static int __uac_clock_find_source(struct snd_usb_audio *chip, } static int __uac3_clock_find_source(struct snd_usb_audio *chip, - struct audioformat *fmt, int entity_id, + const struct audioformat *fmt, int entity_id, unsigned long *visited, bool validate) { struct uac3_clock_source_descriptor *source; @@ -464,7 +464,7 @@ static int __uac3_clock_find_source(struct snd_usb_audio *chip, * Returns the clock source UnitID (>=0) on success, or an error. */ int snd_usb_clock_find_source(struct snd_usb_audio *chip, - struct audioformat *fmt, bool validate) + const struct audioformat *fmt, bool validate) { DECLARE_BITMAP(visited, 256); memset(visited, 0, sizeof(visited)); @@ -482,7 +482,7 @@ int snd_usb_clock_find_source(struct snd_usb_audio *chip, } static int set_sample_rate_v1(struct snd_usb_audio *chip, - struct audioformat *fmt, int rate) + const struct audioformat *fmt, int rate) { struct usb_device *dev = chip->dev; struct usb_host_interface *alts; @@ -611,7 +611,7 @@ int snd_usb_set_sample_rate_v2v3(struct snd_usb_audio *chip, } static int set_sample_rate_v2v3(struct snd_usb_audio *chip, - struct audioformat *fmt, int rate) + const struct audioformat *fmt, int rate) { int cur_rate, prev_rate; int clock; @@ -663,7 +663,7 @@ static int set_sample_rate_v2v3(struct snd_usb_audio *chip, } int snd_usb_init_sample_rate(struct snd_usb_audio *chip, - struct audioformat *fmt, int rate) + const struct audioformat *fmt, int rate) { usb_audio_dbg(chip, "%d:%d Set sample rate %d, clock %d\n", fmt->iface, fmt->altsetting, rate, fmt->clock); diff --git a/sound/usb/clock.h b/sound/usb/clock.h index 8d406ed294d6..ed9fc2dc0510 100644 --- a/sound/usb/clock.h +++ b/sound/usb/clock.h @@ -3,10 +3,10 @@ #define __USBAUDIO_CLOCK_H int snd_usb_init_sample_rate(struct snd_usb_audio *chip, - struct audioformat *fmt, int rate); + const struct audioformat *fmt, int rate); int snd_usb_clock_find_source(struct snd_usb_audio *chip, - struct audioformat *fmt, bool validate); + const struct audioformat *fmt, bool validate); int snd_usb_set_sample_rate_v2v3(struct snd_usb_audio *chip, const struct audioformat *fmt, diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index b8f06a75fc2a..49fb934ee432 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -623,7 +623,7 @@ bool snd_usb_endpoint_compatible(struct snd_usb_audio *chip, */ struct snd_usb_endpoint * snd_usb_endpoint_open(struct snd_usb_audio *chip, - struct audioformat *fp, + const struct audioformat *fp, const struct snd_pcm_hw_params *params, bool is_sync_ep) { diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h index 2bfa6d3e029c..201011d89659 100644 --- a/sound/usb/endpoint.h +++ b/sound/usb/endpoint.h @@ -12,7 +12,7 @@ int snd_usb_add_endpoint(struct snd_usb_audio *chip, int ep_num, int type); struct snd_usb_endpoint * snd_usb_endpoint_open(struct snd_usb_audio *chip, - struct audioformat *fp, + const struct audioformat *fp, const struct snd_pcm_hw_params *params, bool is_sync_ep); void snd_usb_endpoint_close(struct snd_usb_audio *chip, diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index e80e8cf1e863..fc028492dd1a 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -80,13 +80,13 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream /* * find a matching audio format */ -static struct audioformat * +static const struct audioformat * find_format(struct list_head *fmt_list_head, snd_pcm_format_t format, unsigned int rate, unsigned int channels, bool strict_match, struct snd_usb_substream *subs) { - struct audioformat *fp; - struct audioformat *found = NULL; + const struct audioformat *fp; + const struct audioformat *found = NULL; int cur_attr = 0, attr; list_for_each_entry(fp, fmt_list_head, list) { @@ -141,7 +141,7 @@ find_format(struct list_head *fmt_list_head, snd_pcm_format_t format, return found; } -static struct audioformat * +static const struct audioformat * find_substream_format(struct snd_usb_substream *subs, const struct snd_pcm_hw_params *params) { @@ -182,7 +182,7 @@ static int init_pitch_v2(struct snd_usb_audio *chip, int ep) * initialize the pitch control and sample rate */ int snd_usb_init_pitch(struct snd_usb_audio *chip, - struct audioformat *fmt) + const struct audioformat *fmt) { int err; @@ -641,14 +641,14 @@ find_matching_substream(struct snd_usb_audio *chip, int stream, int ep_num, return NULL; } -static struct audioformat * +static const struct audioformat * find_implicit_fb_sync_format(struct snd_usb_audio *chip, const struct audioformat *target, const struct snd_pcm_hw_params *params, int stream) { struct snd_usb_substream *subs; - struct audioformat *fp, *sync_fmt; + const struct audioformat *fp, *sync_fmt; int score, high_score; subs = find_matching_substream(chip, stream, target->sync_ep, @@ -726,8 +726,8 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, { struct snd_usb_substream *subs = substream->runtime->private_data; struct snd_usb_audio *chip = subs->stream->chip; - struct audioformat *fmt; - struct audioformat *sync_fmt; + const struct audioformat *fmt; + const struct audioformat *sync_fmt; int ret; ret = snd_media_start_pipeline(subs); @@ -918,7 +918,7 @@ static const struct snd_pcm_hardware snd_usb_hardware = static int hw_check_valid_format(struct snd_usb_substream *subs, struct snd_pcm_hw_params *params, - struct audioformat *fp) + const struct audioformat *fp) { struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); @@ -995,7 +995,7 @@ static int hw_rule_rate(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) { struct snd_usb_substream *subs = rule->private; - struct audioformat *fp; + const struct audioformat *fp; struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); unsigned int rmin, rmax, r; int i; @@ -1028,7 +1028,7 @@ static int hw_rule_channels(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) { struct snd_usb_substream *subs = rule->private; - struct audioformat *fp; + const struct audioformat *fp; struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); unsigned int rmin, rmax; @@ -1049,7 +1049,7 @@ static int hw_rule_format(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) { struct snd_usb_substream *subs = rule->private; - struct audioformat *fp; + const struct audioformat *fp; struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); u64 fbits; u32 oldbits[2]; @@ -1080,7 +1080,7 @@ static int hw_rule_period_time(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) { struct snd_usb_substream *subs = rule->private; - struct audioformat *fp; + const struct audioformat *fp; struct snd_interval *it; unsigned char min_datainterval; unsigned int pmin; @@ -1109,7 +1109,7 @@ static int apply_hw_constraint_from_sync(struct snd_pcm_runtime *runtime, { struct snd_usb_audio *chip = subs->stream->chip; struct snd_usb_endpoint *ep; - struct audioformat *fp; + const struct audioformat *fp; int err; list_for_each_entry(fp, &subs->fmt_list, list) { @@ -1170,7 +1170,7 @@ static int apply_hw_constraint_from_sync(struct snd_pcm_runtime *runtime, static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs) { struct snd_usb_audio *chip = subs->stream->chip; - struct audioformat *fp; + const struct audioformat *fp; unsigned int pt, ptmin; int param_period_time_if_needed = -1; int err; diff --git a/sound/usb/pcm.h b/sound/usb/pcm.h index a4f784225abc..06c586467d3f 100644 --- a/sound/usb/pcm.h +++ b/sound/usb/pcm.h @@ -10,7 +10,7 @@ int snd_usb_pcm_suspend(struct snd_usb_stream *as); int snd_usb_pcm_resume(struct snd_usb_stream *as); int snd_usb_init_pitch(struct snd_usb_audio *chip, - struct audioformat *fmt); + const struct audioformat *fmt); void snd_usb_preallocate_buffer(struct snd_usb_substream *subs); int snd_usb_audioformat_set_sync_ep(struct snd_usb_audio *chip, diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 7e7f258011ff..5510c8a98447 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1375,7 +1375,8 @@ int snd_usb_apply_boot_quirk_once(struct usb_device *dev, /* * check if the device uses big-endian samples */ -int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp) +int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, + const struct audioformat *fp) { /* it depends on altsetting whether the device is big-endian or not */ switch (chip->usb_id) { @@ -1414,7 +1415,7 @@ enum { }; static void set_format_emu_quirk(struct snd_usb_substream *subs, - struct audioformat *fmt) + const struct audioformat *fmt) { unsigned char emu_samplerate_id = 0; @@ -1476,7 +1477,7 @@ static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs) } void snd_usb_set_format_quirk(struct snd_usb_substream *subs, - struct audioformat *fmt) + const struct audioformat *fmt) { switch (subs->stream->chip->usb_id) { case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ @@ -1543,7 +1544,7 @@ static bool is_itf_usb_dsd_dac(unsigned int id) } int snd_usb_select_mode_quirk(struct snd_usb_audio *chip, - struct audioformat *fmt) + const struct audioformat *fmt) { struct usb_device *dev = chip->dev; int err; diff --git a/sound/usb/quirks.h b/sound/usb/quirks.h index 011f22cf2bf6..67a02303c820 100644 --- a/sound/usb/quirks.h +++ b/sound/usb/quirks.h @@ -26,12 +26,12 @@ int snd_usb_apply_boot_quirk_once(struct usb_device *dev, unsigned int usb_id); void snd_usb_set_format_quirk(struct snd_usb_substream *subs, - struct audioformat *fmt); + const struct audioformat *fmt); bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip); int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, - struct audioformat *fp); + const struct audioformat *fp); void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep); @@ -41,7 +41,7 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, __u16 index, void *data, __u16 size); int snd_usb_select_mode_quirk(struct snd_usb_audio *chip, - struct audioformat *fmt); + const struct audioformat *fmt); u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip, struct audioformat *fp,

[27/41] ALSA: usb-audio: Constify audioformat pointer references

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