korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-16 16:54:20 +08:00
Code Issues Packages Projects Releases Wiki Activity
779e86a314
linux/sound/soc/codecs/wm_adsp.h

120 lines
3.2 KiB
C
Raw Normal View History

ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
/*
* wm_adsp.h -- Wolfson ADSP support
*
* Copyright 2012 Wolfson Microelectronics plc
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __WM_ADSP_H
#define __WM_ADSP_H
#include <sound/soc.h>
#include <sound/soc-dapm.h>
ASoC: wm_adsp: Add support for opening a compressed stream Allow user-space to open a compressed stream, although no data will be passed yet, as part of this adding the ability to define supported capabilities per firmware and check these match the stream being opened. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:45 +08:00
#include <sound/compress_driver.h>
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
#include "wmfw.h"
struct wm_adsp_region {
int type;
unsigned int base;
};
ASoC: wm_adsp: Implement support for algorithm-specific coefficient blocks WMDR coefficient files can specify coefficients in terms of algorithm specific data regions. Record the start addresses of these regions while parsing the algorithms and then use them to handle coefficients with these formats. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-09 00:09:31 +08:00
struct wm_adsp_alg_region {
struct list_head list;
unsigned int alg;
int type;
unsigned int base;
};
ASoC: wm_adsp: Add support for opening a compressed stream Allow user-space to open a compressed stream, although no data will be passed yet, as part of this adding the ability to define supported capabilities per firmware and check these match the stream being opened. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:45 +08:00
struct wm_adsp_compr;
ASoC: wm_adsp: Add code to locate and initialise compressed buffer Add code that locates and initialises the buffer of compressed data on the DSP if the firmware supported compressed data capture. The buffer struct (wm_adsp_compr_buf) is kept separate from the stream struct (wm_adsp_compr) this will allow much easier support of multiple streams of data from the one DSP in the future, although support for this will not be added in this patch chain. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:46 +08:00
struct wm_adsp_compr_buf;
ASoC: wm_adsp: Add support for opening a compressed stream Allow user-space to open a compressed stream, although no data will be passed yet, as part of this adding the ability to define supported capabilities per firmware and check these match the stream being opened. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:45 +08:00
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
struct wm_adsp {
const char *part;
int num;
int type;
struct device *dev;
struct regmap *regmap;
ASoC: wm_adsp: Sanitize parameter passing No need to hold on to the `codec' pointer. We can use the `dsp' pointer and grab all the information we need from there. This makes the parameters for the functions a bit more sane and idiomatic. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-01 18:11:28 +08:00
struct snd_soc_card *card;
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
int base;
ASoC: wm_adsp: Set ADSP1 clock rate to match sys clock Sets the ADSP1 clock rate to match the system clock rate. To support this the codec driver provides details of register containing the system clock control bits. Signed-off-by: Chris Rattray <crattray@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-18 16:43:09 +08:00
int sysclk_reg;
int sysclk_mask;
int sysclk_shift;
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
ASoC: wm_adsp: Implement support for algorithm-specific coefficient blocks WMDR coefficient files can specify coefficients in terms of algorithm specific data regions. Record the start addresses of these regions while parsing the algorithms and then use them to handle coefficients with these formats. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-09 00:09:31 +08:00
struct list_head alg_regions;
ASoC: wm_adsp: Fixup some minor formatting and checkpatch errors Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-09 00:08:25 +08:00
unsigned int fw_id;
unsigned int fw_id_version;
ASoC: wm_adsp: Handle old .bin files Older .bin files report the global coefficients as absolute address writes to zero; maintain compatibility with them. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-05 22:39:54 +08:00
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
const struct wm_adsp_region *mem;
int num_mems;
ASoC: wm_adsp: Enable DVFS for ADSP2 Some ADSP devices can make use of DVFS to optimise power consumption depending on the operating frequency of the DSP core. Implement support for this in the generic ADSP code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-29 01:20:32 +08:00
ASoC: wm_adsp: Add basic firmware selection support There are many firmwares available for ADSP devices. Add basic support for selecting between them, including a couple of feature sets in the set of available firmware to start off with. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-12 06:58:28 +08:00
int fw;
ASoC: wm_adsp: Add basic support for rev 1 firmware file format Revision one of the file format includes new algorithm and coefficient blocks which provide additional information about the controls exported by the firmware. This patch updates the processing to handle this version of the file format. Note that whilst this version of the format adds support for specifying a name for the control through the firmware file this has not been used and to keep compatibility with existing deployments no changes to the firmware control naming are made by this patch. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-13 20:28:02 +08:00
int fw_ver;
debugfs: Pass bool pointer to debugfs_create_bool() Its a bit odd that debugfs_create_bool() takes 'u32 *' as an argument, when all it needs is a boolean pointer. It would be better to update this API to make it accept 'bool *' instead, as that will make it more consistent and often more convenient. Over that bool takes just a byte. That required updates to all user sites as well, in the same commit updating the API. regmap core was also using debugfs_{read|write}_file_bool(), directly and variable types were updated for that to be bool as well. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-27 06:04:07 +08:00
bool running;
ASoC: wm_adsp: Add basic firmware selection support There are many firmwares available for ADSP devices. Add basic support for selecting between them, including a couple of feature sets in the set of available firmware to start off with. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-12 06:58:28 +08:00
ASoC: wm_adsp: Simplify kcontrol handling Get rid off the wm_coeff struct and the wm_coeff_add_kcontrol() function. We are now using the snd_soc_card_kcontrol() function to get the kcontrol pointers. No need to call into ALSA code to register the kcontrols. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29 20:51:59 +08:00
struct list_head ctl_list;
ASoC: wm_adsp: Factor out ADSP2 boot proceedure Move the ADSP2 boot proceedure into a work structure in preparation for running it asynchronously with the reset of the audio path bring up. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-09 01:42:18 +08:00
struct work_struct boot_work;
ASoC: wm_adsp: Add basic debugfs entries This patch adds some debugfs nodes to get information about the currently running firmware. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-11 18:32:32 +08:00
ASoC: wm_adsp: Add support for opening a compressed stream Allow user-space to open a compressed stream, although no data will be passed yet, as part of this adding the ability to define supported capabilities per firmware and check these match the stream being opened. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:45 +08:00
struct wm_adsp_compr *compr;
ASoC: wm_adsp: Add code to locate and initialise compressed buffer Add code that locates and initialises the buffer of compressed data on the DSP if the firmware supported compressed data capture. The buffer struct (wm_adsp_compr_buf) is kept separate from the stream struct (wm_adsp_compr) this will allow much easier support of multiple streams of data from the one DSP in the future, although support for this will not be added in this patch chain. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:46 +08:00
struct wm_adsp_compr_buf *buffer;
ASoC: wm_adsp: Add support for opening a compressed stream Allow user-space to open a compressed stream, although no data will be passed yet, as part of this adding the ability to define supported capabilities per firmware and check these match the stream being opened. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:45 +08:00
ASoC: wm_adsp: Replace debugfs lock with more general DSP power lock Most events around the DSP just need to be locked to ensure that the DSP can't change power state whilst they are happening. This includes the debugfs entries and this will make sorting the rest of the locking simpler. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-09 00:08:26 +08:00
struct mutex pwr_lock;
ASoC: wm_adsp: Add basic debugfs entries This patch adds some debugfs nodes to get information about the currently running firmware. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-11 18:32:32 +08:00
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_root;
char *wmfw_file_name;
char *bin_file_name;
#endif
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
};
#define WM_ADSP1(wname, num) \
ASoC: wm_adsp: Use SND_SOC_DAPM_PGA_E() instead of open-coding it Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-06-20 01:34:02 +08:00
SND_SOC_DAPM_PGA_E(wname, SND_SOC_NOPM, num, 0, NULL, 0, \
wm_adsp1_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD)
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
ASoC: wm_adsp: Move setting of DSP speed into CODEC specific code The ADSP code should be agnostic of which CODEC it runs upon, currently there is only one remaining part of the implementation that doesn't follow this. When the DSP is booted on ADSP2 we read ARIZONA_SYSTEM_CLOCK_1 and use that to set the initial speed for the DSP clock. This patch factors that out into CODEC specific code, leaving the ADSP code entirely CODEC agnostic. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-22 01:53:02 +08:00
#define WM_ADSP2(wname, num, event_fn) \
ASoC: wm_adsp: Start DSP booting earlier in the DAPM process Move the start of booting the DSP to earlier in the DAPM process, and move the final starting of the DSP to later in the DAPM process. This allows us to overlap some of the processing with other components of the system being brought up. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-09 01:42:19 +08:00
{ .id = snd_soc_dapm_dai_link, .name = wname " Preloader", \
ASoC: wm_adsp: Move DVFS control into codec driver In theory the ADSP driver should not need to know anything about the codec it is part of. But the WM5102 needs DVFS control based on ADSP clocking speed. This was being handled by bundling part of the knowledge of this into the ADSP driver. This change moves this handling out of the ADSP driver and into the WM5102 driver. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-02 18:53:34 +08:00
.reg = SND_SOC_NOPM, .shift = num, .event = event_fn, \
.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }, \
ASoC: wm_adsp: Start DSP booting earlier in the DAPM process Move the start of booting the DSP to earlier in the DAPM process, and move the final starting of the DSP to later in the DAPM process. This allows us to overlap some of the processing with other components of the system being brought up. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-09 01:42:19 +08:00
{ .id = snd_soc_dapm_out_drv, .name = wname, \
.reg = SND_SOC_NOPM, .shift = num, .event = wm_adsp2_event, \
.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD }
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
ASoC: wm_adsp: Move DSP Rate controls into the codec The rate controls are codec-specific, it's not possible to generically say what the range or the meaning of each control is (or even if they exist at all) - that depends on the particular codec. This is currently being handled for Arizona codecs by putting an Arizona-specific table of controls inside the wm_adsp driver. This creates a dependency between wm_adsp and arizona.c, and is an awkward solution if the ADSP is used in another family of codecs Fix this by moving the Arizona-specific rate controls into the Arizona codec drivers. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-18 20:43:19 +08:00
extern const struct snd_kcontrol_new wm_adsp_fw_controls[];
ASoC: wm_adsp: Add basic firmware selection support There are many firmwares available for ADSP devices. Add basic support for selecting between them, including a couple of feature sets in the set of available firmware to start off with. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-12 06:58:28 +08:00
ASoC: wm_adsp: Improve variable naming We have wm_adsp_region, wm_adsp_alg_region, and wmfw_region, the variables for which are all frequently called region, this can get quite confusing when reviewing the code especially given some functions are quite long. Consistently use mem for wm_adsp_regions, alg_region for wm_adsp_alg_region and region for wmfw_region. Additionally, we use a mix of adsp and dsp for pointers to the wm_adsp structure standardise this on dsp. Finally, we use algs to refer to the number of algorithms quite frequently, change this to the more descriptive n_algs. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-13 20:27:54 +08:00
int wm_adsp1_init(struct wm_adsp *dsp);
ASoC: wm_adsp: Move DVFS control into codec driver In theory the ADSP driver should not need to know anything about the codec it is part of. But the WM5102 needs DVFS control based on ADSP clocking speed. This was being handled by bundling part of the knowledge of this into the ADSP driver. This change moves this handling out of the ADSP driver and into the WM5102 driver. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-02 18:53:34 +08:00
int wm_adsp2_init(struct wm_adsp *dsp);
ASoC: wm_adsp: Add codec_probe and codec_remove stubs Currently the only init function in wm_adsp is called by the codec driver early in its probe before the codec has been registered with SOC. This patch adds stubs for the codec_probe and codec_remove stages and calls them from WM5102 and WM5110 codec drivers. This allows us to hang anything that needs setup during the codec probe stage off these functions without further modification of the codec drivers. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-11 18:32:30 +08:00
int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec);
int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec);
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
int wm_adsp1_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event);
ASoC: wm_adsp: Start DSP booting earlier in the DAPM process Move the start of booting the DSP to earlier in the DAPM process, and move the final starting of the DSP to later in the DAPM process. This allows us to overlap some of the processing with other components of the system being brought up. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-09 01:42:19 +08:00
int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
ASoC: wm_adsp: Move setting of DSP speed into CODEC specific code The ADSP code should be agnostic of which CODEC it runs upon, currently there is only one remaining part of the implementation that doesn't follow this. When the DSP is booted on ADSP2 we read ARIZONA_SYSTEM_CLOCK_1 and use that to set the initial speed for the DSP clock. This patch factors that out into CODEC specific code, leaving the ADSP code entirely CODEC agnostic. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-22 01:53:02 +08:00
struct snd_kcontrol *kcontrol, int event,
unsigned int freq);
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
int wm_adsp2_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event);
ASoC: wm_adsp: Add support for opening a compressed stream Allow user-space to open a compressed stream, although no data will be passed yet, as part of this adding the ability to define supported capabilities per firmware and check these match the stream being opened. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:45 +08:00
extern int wm_adsp_compr_open(struct wm_adsp *dsp,
struct snd_compr_stream *stream);
extern int wm_adsp_compr_free(struct snd_compr_stream *stream);
extern int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
struct snd_compr_params *params);
extern int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
struct snd_compr_caps *caps);
ASoC: wm_adsp: Attach buffers and streams together The stream is created whilst the compressed stream is opened and a buffer is created when the DSP powers up. It is necessary at a point once both the DSP has powered up and the the stream has been opened to connect a stream to a buffer on the DSP. This is done in the trigger callback as this is after the DSP has been powered and obviously the stream must be open. Note that whilst the connect is currently trivial it is expected that this will get more complex when support for multiple buffers/streams per DSP is added. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:47 +08:00
extern int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd);
ASoC: wm_adsp: Add a handler for the compressed IRQ Here support is added for responding to DSP IRQs that are used to indicate data being available on the DSP. The idea is that we check the amount of data available upon receipt of an IRQ and on subsequent calls to the pointer callback we recheck once less than one fragment is available (to avoid excessive SPI traffic), if there is truely less than one fragment available we ack the last IRQ and wait for a new one. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-06 20:33:18 +08:00
extern int wm_adsp_compr_handle_irq(struct wm_adsp *dsp);
extern int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
struct snd_compr_tstamp *tstamp);
ASoC: wm_adsp: Pull data through compressed read Data is read in blocks of up to one fragment is size from the circular buffer on the DSP and is re-packed to remove the padding byte that exists in the DSP memory map. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-06 20:33:19 +08:00
extern int wm_adsp_compr_copy(struct snd_compr_stream *stream,
char __user *buf, size_t count);
ASoC: wm_adsp: Add support for opening a compressed stream Allow user-space to open a compressed stream, although no data will be passed yet, as part of this adding the ability to define supported capabilities per firmware and check these match the stream being opened. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15 19:29:45 +08:00
ASoC: adsp: Add ADSP base support Many current Wolfson devices feature DSPs based around an architecture known as ADSP. Since there is a lot of commonality in the system integration of these devices a common library will be used to provide support for them. This version provides equivalent support for ADSP1 to that currently included in the WM2200 driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-10-11 10:54:02 +08:00
#endif
Reference in New Issue Copy Permalink