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linux/sound/soc/sh/rcar/src.c
Kees Cook a86854d0c5 treewide: devm_kzalloc() -> devm_kcalloc() 
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc().
This patch replaces cases of:

        devm_kzalloc(handle, a * b, gfp)

with:
        devm_kcalloc(handle, a * b, gfp)

as well as handling cases of:

        devm_kzalloc(handle, a * b * c, gfp)

with:

        devm_kzalloc(handle, array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        devm_kcalloc(handle, array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        devm_kzalloc(handle, 4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

Some manual whitespace fixes were needed in this patch, as Coccinelle
really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...".

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
expression HANDLE;
type TYPE;
expression THING, E;
@@

(
  devm_kzalloc(HANDLE,
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  devm_kzalloc(HANDLE,
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression HANDLE;
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
expression HANDLE;
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
expression HANDLE;
identifier SIZE, COUNT;
@@

- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression HANDLE;
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression HANDLE;
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
expression HANDLE;
identifier STRIDE, SIZE, COUNT;
@@

(
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression HANDLE;
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression HANDLE;
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, sizeof(THING) * C2, ...)
|
  devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...)
|
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE, C1 * C2, ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * E2
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00

640 lines
13 KiB
C
Raw Blame History

/*
* Renesas R-Car SRC support
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.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.
*/
/*
* you can enable below define if you don't need
* SSI interrupt status debug message when debugging
* see rsnd_dbg_irq_status()
*
* #define RSND_DEBUG_NO_IRQ_STATUS 1
*/
#include "rsnd.h"
#define SRC_NAME "src"
/* SCU_SYSTEM_STATUS0/1 */
#define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
struct rsnd_src {
struct rsnd_mod mod;
struct rsnd_mod *dma;
struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
struct rsnd_kctrl_cfg_s sync; /* sync convert */
u32 convert_rate; /* sampling rate convert */
int irq;
};
#define RSND_SRC_NAME_SIZE 16
#define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id)
#define rsnd_src_nr(priv) ((priv)->src_nr)
#define rsnd_src_sync_is_enabled(mod) (rsnd_mod_to_src(mod)->sen.val)
#define rsnd_mod_to_src(_mod) \
container_of((_mod), struct rsnd_src, mod)
#define for_each_rsnd_src(pos, priv, i) \
for ((i) = 0; \
((i) < rsnd_src_nr(priv)) && \
((pos) = (struct rsnd_src *)(priv)->src + i); \
i++)
/*
* image of SRC (Sampling Rate Converter)
*
* 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+
* 48kHz <-> | SRC | <------> | SSI | <-----> | codec |
* 44.1kHz <-> +-----+ +-----+ +-------+
* ...
*
*/
static void rsnd_src_activation(struct rsnd_mod *mod)
{
rsnd_mod_write(mod, SRC_SWRSR, 0);
rsnd_mod_write(mod, SRC_SWRSR, 1);
}
static void rsnd_src_halt(struct rsnd_mod *mod)
{
rsnd_mod_write(mod, SRC_SRCIR, 1);
rsnd_mod_write(mod, SRC_SWRSR, 0);
}
static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
struct rsnd_mod *mod)
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
int is_play = rsnd_io_is_play(io);
return rsnd_dma_request_channel(rsnd_src_of_node(priv),
mod,
is_play ? "rx" : "tx");
}
static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io,
struct rsnd_mod *mod)
{
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
struct rsnd_src *src = rsnd_mod_to_src(mod);
u32 convert_rate;
if (!runtime)
return 0;
if (!rsnd_src_sync_is_enabled(mod))
return src->convert_rate;
convert_rate = src->sync.val;
if (!convert_rate)
convert_rate = src->convert_rate;
if (!convert_rate)
convert_rate = runtime->rate;
return convert_rate;
}
unsigned int rsnd_src_get_rate(struct rsnd_priv *priv,
struct rsnd_dai_stream *io,
int is_in)
{
struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
unsigned int rate = 0;
int is_play = rsnd_io_is_play(io);
/*
* Playback
* runtime_rate -> [SRC] -> convert_rate
*
* Capture
* convert_rate -> [SRC] -> runtime_rate
*/
if (is_play == is_in)
return runtime->rate;
/*
* return convert rate if SRC is used,
* otherwise, return runtime->rate as usual
*/
if (src_mod)
rate = rsnd_src_convert_rate(io, src_mod);
if (!rate)
rate = runtime->rate;
return rate;
}
static int rsnd_src_hw_params(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *fe_params)
{
struct rsnd_src *src = rsnd_mod_to_src(mod);
struct snd_soc_pcm_runtime *fe = substream->private_data;
/*
* SRC assumes that it is used under DPCM if user want to use
* sampling rate convert. Then, SRC should be FE.
* And then, this function will be called *after* BE settings.
* this means, each BE already has fixuped hw_params.
* see
* dpcm_fe_dai_hw_params()
* dpcm_be_dai_hw_params()
*/
src->convert_rate = 0;
if (fe->dai_link->dynamic) {
int stream = substream->stream;
struct snd_soc_dpcm *dpcm;
struct snd_pcm_hw_params *be_params;
list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
be_params = &dpcm->hw_params;
if (params_rate(fe_params) != params_rate(be_params))
src->convert_rate = params_rate(be_params);
}
}
return 0;
}
static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
struct rsnd_mod *mod)
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
struct device *dev = rsnd_priv_to_dev(priv);
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
int is_play = rsnd_io_is_play(io);
int use_src = 0;
u32 fin, fout;
u32 ifscr, fsrate, adinr;
u32 cr, route;
u32 bsdsr, bsisr;
u32 i_busif, o_busif, tmp;
uint ratio;
if (!runtime)
return;
fin = rsnd_src_get_in_rate(priv, io);
fout = rsnd_src_get_out_rate(priv, io);
/* 6 - 1/6 are very enough ratio for SRC_BSDSR */
if (fin == fout)
ratio = 0;
else if (fin > fout)
ratio = 100 * fin / fout;
else
ratio = 100 * fout / fin;
if (ratio > 600) {
dev_err(dev, "FSO/FSI ratio error\n");
return;
}
use_src = (fin != fout) | rsnd_src_sync_is_enabled(mod);
/*
* SRC_ADINR
*/
adinr = rsnd_get_adinr_bit(mod, io) |
rsnd_runtime_channel_original(io);
/*
* SRC_IFSCR / SRC_IFSVR
*/
ifscr = 0;
fsrate = 0;
if (use_src) {
u64 n;
ifscr = 1;
n = (u64)0x0400000 * fin;
do_div(n, fout);
fsrate = n;
}
/*
* SRC_SRCCR / SRC_ROUTE_MODE0
*/
cr = 0x00011110;
route = 0x0;
if (use_src) {
route = 0x1;
if (rsnd_src_sync_is_enabled(mod)) {
cr |= 0x1;
route |= rsnd_io_is_play(io) ?
(0x1 << 24) : (0x1 << 25);
}
}
/*
* SRC_BSDSR / SRC_BSISR
*/
switch (rsnd_mod_id(mod)) {
case 5:
case 6:
case 7:
case 8:
bsdsr = 0x02400000; /* 6 - 1/6 */
bsisr = 0x00100060; /* 6 - 1/6 */
break;
default:
bsdsr = 0x01800000; /* 6 - 1/6 */
bsisr = 0x00100060 ;/* 6 - 1/6 */
break;
}
/* BUSIF_MODE */
tmp = rsnd_get_busif_shift(io, mod);
i_busif = ( is_play ? tmp : 0) | 1;
o_busif = (!is_play ? tmp : 0) | 1;
rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
rsnd_mod_write(mod, SRC_SRCIR, 1); /* initialize */
rsnd_mod_write(mod, SRC_ADINR, adinr);
rsnd_mod_write(mod, SRC_IFSCR, ifscr);
rsnd_mod_write(mod, SRC_IFSVR, fsrate);
rsnd_mod_write(mod, SRC_SRCCR, cr);
rsnd_mod_write(mod, SRC_BSDSR, bsdsr);
rsnd_mod_write(mod, SRC_BSISR, bsisr);
rsnd_mod_write(mod, SRC_SRCIR, 0); /* cancel initialize */
rsnd_mod_write(mod, SRC_I_BUSIF_MODE, i_busif);
rsnd_mod_write(mod, SRC_O_BUSIF_MODE, o_busif);
rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
rsnd_adg_set_src_timesel_gen2(mod, io, fin, fout);
}
static int rsnd_src_irq(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv,
int enable)
{
struct rsnd_src *src = rsnd_mod_to_src(mod);
u32 sys_int_val, int_val, sys_int_mask;
int irq = src->irq;
int id = rsnd_mod_id(mod);
sys_int_val =
sys_int_mask = OUF_SRC(id);
int_val = 0x3300;
/*
* IRQ is not supported on non-DT
* see
* rsnd_src_probe_()
*/
if ((irq <= 0) || !enable) {
sys_int_val = 0;
int_val = 0;
}
/*
* WORKAROUND
*
* ignore over flow error when rsnd_src_sync_is_enabled()
*/
if (rsnd_src_sync_is_enabled(mod))
sys_int_val = sys_int_val & 0xffff;
rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
return 0;
}
static void rsnd_src_status_clear(struct rsnd_mod *mod)
{
u32 val = OUF_SRC(rsnd_mod_id(mod));
rsnd_mod_write(mod, SCU_SYS_STATUS0, val);
rsnd_mod_write(mod, SCU_SYS_STATUS1, val);
}
static bool rsnd_src_error_occurred(struct rsnd_mod *mod)
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
struct device *dev = rsnd_priv_to_dev(priv);
u32 val0, val1;
u32 status0, status1;
bool ret = false;
val0 = val1 = OUF_SRC(rsnd_mod_id(mod));
/*
* WORKAROUND
*
* ignore over flow error when rsnd_src_sync_is_enabled()
*/
if (rsnd_src_sync_is_enabled(mod))
val0 = val0 & 0xffff;
status0 = rsnd_mod_read(mod, SCU_SYS_STATUS0);
status1 = rsnd_mod_read(mod, SCU_SYS_STATUS1);
if ((status0 & val0) || (status1 & val1)) {
rsnd_dbg_irq_status(dev, "%s[%d] err status : 0x%08x, 0x%08x\n",
rsnd_mod_name(mod), rsnd_mod_id(mod),
status0, status1);
ret = true;
}
return ret;
}
static int rsnd_src_start(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
u32 val;
/*
* WORKAROUND
*
* Enable SRC output if you want to use sync convert together with DVC
*/
val = (rsnd_io_to_mod_dvc(io) && !rsnd_src_sync_is_enabled(mod)) ?
0x01 : 0x11;
rsnd_mod_write(mod, SRC_CTRL, val);
return 0;
}
static int rsnd_src_stop(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
rsnd_mod_write(mod, SRC_CTRL, 0);
return 0;
}
static int rsnd_src_init(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
struct rsnd_src *src = rsnd_mod_to_src(mod);
/* reset sync convert_rate */
src->sync.val = 0;
rsnd_mod_power_on(mod);
rsnd_src_activation(mod);
rsnd_src_set_convert_rate(io, mod);
rsnd_src_status_clear(mod);
return 0;
}
static int rsnd_src_quit(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
struct rsnd_src *src = rsnd_mod_to_src(mod);
rsnd_src_halt(mod);
rsnd_mod_power_off(mod);
/* reset sync convert_rate */
src->sync.val = 0;
return 0;
}
static void __rsnd_src_interrupt(struct rsnd_mod *mod,
struct rsnd_dai_stream *io)
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
bool stop = false;
spin_lock(&priv->lock);
/* ignore all cases if not working */
if (!rsnd_io_is_working(io))
goto rsnd_src_interrupt_out;
if (rsnd_src_error_occurred(mod))
stop = true;
rsnd_src_status_clear(mod);
rsnd_src_interrupt_out:
spin_unlock(&priv->lock);
if (stop)
snd_pcm_stop_xrun(io->substream);
}
static irqreturn_t rsnd_src_interrupt(int irq, void *data)
{
struct rsnd_mod *mod = data;
rsnd_mod_interrupt(mod, __rsnd_src_interrupt);
return IRQ_HANDLED;
}
static int rsnd_src_probe_(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
struct rsnd_src *src = rsnd_mod_to_src(mod);
struct device *dev = rsnd_priv_to_dev(priv);
int irq = src->irq;
int ret;
if (irq > 0) {
/*
* IRQ is not supported on non-DT
* see
* rsnd_src_irq()
*/
ret = devm_request_irq(dev, irq,
rsnd_src_interrupt,
IRQF_SHARED,
dev_name(dev), mod);
if (ret)
return ret;
}
ret = rsnd_dma_attach(io, mod, &src->dma);
return ret;
}
static int rsnd_src_pcm_new(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct snd_soc_pcm_runtime *rtd)
{
struct rsnd_src *src = rsnd_mod_to_src(mod);
int ret;
/*
* enable SRC sync convert if possible
*/
/*
* It can't use SRC Synchronous convert
* when Capture if it uses CMD
*/
if (rsnd_io_to_mod_cmd(io) && !rsnd_io_is_play(io))
return 0;
/*
* enable sync convert
*/
ret = rsnd_kctrl_new_s(mod, io, rtd,
rsnd_io_is_play(io) ?
"SRC Out Rate Switch" :
"SRC In Rate Switch",
rsnd_kctrl_accept_anytime,
rsnd_src_set_convert_rate,
&src->sen, 1);
if (ret < 0)
return ret;
ret = rsnd_kctrl_new_s(mod, io, rtd,
rsnd_io_is_play(io) ?
"SRC Out Rate" :
"SRC In Rate",
rsnd_kctrl_accept_runtime,
rsnd_src_set_convert_rate,
&src->sync, 192000);
return ret;
}
static struct rsnd_mod_ops rsnd_src_ops = {
.name = SRC_NAME,
.dma_req = rsnd_src_dma_req,
.probe = rsnd_src_probe_,
.init = rsnd_src_init,
.quit = rsnd_src_quit,
.start = rsnd_src_start,
.stop = rsnd_src_stop,
.irq = rsnd_src_irq,
.hw_params = rsnd_src_hw_params,
.pcm_new = rsnd_src_pcm_new,
};
struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
{
if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
id = 0;
return rsnd_mod_get(rsnd_src_get(priv, id));
}
int rsnd_src_probe(struct rsnd_priv *priv)
{
struct device_node *node;
struct device_node *np;
struct device *dev = rsnd_priv_to_dev(priv);
struct rsnd_src *src;
struct clk *clk;
char name[RSND_SRC_NAME_SIZE];
int i, nr, ret;
/* This driver doesn't support Gen1 at this point */
if (rsnd_is_gen1(priv))
return 0;
node = rsnd_src_of_node(priv);
if (!node)
return 0; /* not used is not error */
nr = of_get_child_count(node);
if (!nr) {
ret = -EINVAL;
goto rsnd_src_probe_done;
}
src = devm_kcalloc(dev, nr, sizeof(*src), GFP_KERNEL);
if (!src) {
ret = -ENOMEM;
goto rsnd_src_probe_done;
}
priv->src_nr = nr;
priv->src = src;
i = 0;
for_each_child_of_node(node, np) {
if (!of_device_is_available(np))
goto skip;
src = rsnd_src_get(priv, i);
snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
SRC_NAME, i);
src->irq = irq_of_parse_and_map(np, 0);
if (!src->irq) {
ret = -EINVAL;
of_node_put(np);
goto rsnd_src_probe_done;
}
clk = devm_clk_get(dev, name);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
of_node_put(np);
goto rsnd_src_probe_done;
}
ret = rsnd_mod_init(priv, rsnd_mod_get(src),
&rsnd_src_ops, clk, rsnd_mod_get_status,
RSND_MOD_SRC, i);
if (ret) {
of_node_put(np);
goto rsnd_src_probe_done;
}
skip:
i++;
}
ret = 0;
rsnd_src_probe_done:
of_node_put(node);
return ret;
}
void rsnd_src_remove(struct rsnd_priv *priv)
{
struct rsnd_src *src;
int i;
for_each_rsnd_src(src, priv, i) {
rsnd_mod_quit(rsnd_mod_get(src));
}
}
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