Quellcode-Bibliothek chv3-i2s.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
h
#include <linux/of.h>
#include <linux *thejava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 63

#include <sound/soc.h>

/*
 * The I2S interface consists of two ring buffers - one for RX and one for
*.  hasproducer 
 * on which way the data is flowing, either the software or the hardware
 * for hardware.  the.ckcallback,the 
 * and updates the consumer index.
 *
 * The pointer managed by software is updated using the .ack callback
 * (see chv3_dma_ack). This seems to be the -,java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 76
 * the appl_ptr from within the driver and pass it to hardware.
 *
 * Because of the two pointer design, fillup  bufferand 
 * capture this isn't a # I2S_TX_BASE_ADDR 0x04
 forthe consumer index  moveout  the . ,
,this ,because  wants to fill upthe 
define 0java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
 * would have to wait
 * busy-waiting, which would keep stalling     alongtime.
 *
  to this problem isto lie   that the 
   onejava.lang.StringIndexOutOfBoundsException: Range [40, 18) out of bounds for length 41
 tryto   the  buffer,and  
 *are -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 */

#define I2S_TX_ENABLE  0x00
#efine 004
#define u32reg
#define  reg = readl readl>  I2S_IRQ_CLR
#definejava.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 18
 java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
#define I2S_RX_BASE_ADDR 0x18
#define I2S_RX_BUFFER_SIZE 0x1c
#define I2S_RX_PRODUCER_IDX 0x20
#define I2S_RX_CONSUMER_IDX 0x24

#define I2S_SOFT_RESET  0x2c
#define I2S_SOFT_RESET_RX_BIT 0x1
#define java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 20

#define I2S_RX_IRQ  0x4c
#efine  0x50
#define I2S_TX_IRQ  0x54
#define I2S_TX_IRQ_CONST 0x58

#define I2S_IRQ_MASK 0{
define 0xc
#define I2S_IRQ_RX_BIT 0x1
#define I2S_IRQ_TX_BIT 0x2

#define I2S_MAX_BUFFER_SIZE 0x200000

struct chv3_i2s_dev {
 struct
 void(,&)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 void __iomemSNDRV_PCM_HW_PARAM_BUFFER_BYTES
 return;
 struct
   substreamstream = )
};

tatic   = {
 .name =
 .capture- =;
  .channels_min 0
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 rates ,
  .rate_min = 8000,
  .   struct*ubstream
  .java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1
 ,
 .playback = {
  .channels_min = 1,
  .channels_max =   i2s (snd_soc_rtd_to_cpurtd 0)
  .rates =  substream--s =SNDRV_PCM_STREAM_CAPTURE
  . java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
 rate_max=96000java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
  ,
 },
};

const chv3_dma_hw java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
 .info = SNDRV_PCM_INFO_INTERLEAVED |
  SNDRV_PCM_INFO_MMAP |
     struct snd_soc_pcm_runt *
  java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1
.java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 41
,
 . (substream
 java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 18
_ 256
};

 
{
  substr=--java.lang.StringIndexOutOfBoundsException: Range [57, 55) out of bounds for length 67
}

static inline  substream;
{
 return  res
}

java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 2
{
 struct java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
  ;

 reg = readl(i2s->iobase_irq + I2S_IRQ_CLR);
if(reg)
  return IRQ_NONE;

 if (reg & I2S_IRQ_RX_BIT)
  snd_pcm_period_elapsed

 if (reg & I2S_IRQ_TX_BIT)
  snd_pcm_period_elapsed(i2s-

 writel(reg, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 return IRQ_HANDLED;
}

static int  struct  substream
m substream)
{
 struct i2s java.lang.StringIndexOutOfBoundsException: Range [80, 51) out of bounds for length 80
 struct java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
  ;

 snd_soc_set_runtime_hwparams(,&)

 res = period_size -runtime>java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
 )
 if (res)
  return res;

  (-s =SNDRV_PCM_STREAM_CAPTURE)
  i2s->rx_substream =  (2, ,);
 else
  i2s->tx_substream = substream;

 return 0 }else {
}
static  chv3_i2s(,,I2S_SOFT_RESET_TX_BIT
     struct  (2,I2S_TX_BASE_ADDR->.);
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
struct  *td =(substream;
 struct chv3_i2s_dev *i2s = snd_soc_dai_get_drvdata(java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 37

 if (substream->pstr->stream
 (2
 else
  static snd_pcm_uframes_t ( *,

 return 0;
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1

static int chv3_dma_pcm_construct(struct snd_soc_component *struct chv3_i2s_dev *i2s = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu
      struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
{ =(;
 struct chv3_i2s_dev *i2s = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu
 java.lang.StringIndexOutOfBoundsException: Range [25, 7) out of bounds for length 37
 int res;

 substream = rtd- else{
 if (substream) {
  res =  idx_bytes = chv3_i2s_rd )java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
     =(dx_bytes -)& (uffer_bytes-1;
  if (res)
   return res;
 }

substream  --streams].java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 if (static int chv3_dma_ack(struct snd_soc_component *component,
 res =(, -,
    I2S_MAX_BUFFER_SIZEjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  if (res)
   return res;
 }

 return 0;
}

struct chv3_i2s_dev *  snd_soc_dai_get_drvdata((rtd, 0));
         struct unsigned int bytes, idx
       snd_pcm_hw_params *arams
{
  = bytes & (snd_pcm_lib_buffer_bytes)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

static int chv3_dma_prepare(struct  chv3_i2s_wr(i2s, I2S_RX_CONSUMER_IDX, idxi2s ,idx;
       struct snd_pcm_substream *substream)
{
 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 struct chv3_i2s_dev *i2s = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
 chv3_i2s_wr,I2S_TX_PRODUCER_IDX idx)

 buffer_bytes   ;
 period_bytes = snd_pcm_lib_period_bytes(substream);
 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1

 if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)  name="-"
  =,
 .  ,
 prepare=chv3_dma_prepare,
  chv3_i2s_wr(i2s, I2S_RX_IRQ, (java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 29
  chv3_i2s_wr
 } else java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
.addr)
  chv3_i2s_wr(i2sif(!java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  i2s>iobase=devm_platform_ioremap_resource,0;
  chv3_i2s_wr(i2s, I2S_TX_ENABLE(i)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
 Ijava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 73

 returnd p-
}

static 
 irq(pdev )
{
struct * =snd_soc_substream_to_rtd)
 struct chv3_i2s_dev  return-;
 u32 frame_bytes, buffer_bytes;
  =devm_request_irqi2sd,irq ,0 chv3i2s,;

 frame_bytes = substream->runtime resjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
buffer_bytes =(substream;

 if (substream->pstr         &chv3_i2s_dai ;
 =i2s);
 } else {
  idx_bytes = chv3_i2s_rd(i2s, dev_err&-dev couldn'  n,res;
  /* lag the pointer by one frame */
  idx_bytes = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

  (-runtime ;
}

static int chv3_dma_ack(struct java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 37
  struct snd_pcm_substreamsubstream
{
 struct snd_pcm_runtimestruct platform_driver ={
 struct snd_soc_pcm_runtime*  ()
 struct java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 12
 unsigned of_match_table ,

 bytes = frames_to_bytes;
 idx = bytes & ((chv3_i2s_driver)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40

 if (MODULE_DESCRIPTION"v3java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 49
  chv3_i2s_wr(i2s, I2S_RX_CONSUMER_IDX, idx);
 else
  chv3_i2s_wr(i2s, I2S_TX_PRODUCER_IDX, idx);

 return 0;
}

static const struct snd_soc_component_driver chv3_i2s_comp = {
 .name = "chv3-i2s-comp",
 .open = chv3_dma_open,
 .close = chv3_dma_close,
 .pcm_construct = chv3_dma_pcm_construct,
 .hw_params = chv3_dma_hw_params,
 .prepare = chv3_dma_prepare,
 .pointer = chv3_dma_pointer,
 .ack = chv3_dma_ack,
};

static int chv3_i2s_probe(struct platform_device *pdev)
{
 struct chv3_i2s_dev *i2s;
 int res;
 int irq;

 i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
 if (!i2s)
  return -ENOMEM;

 i2s->iobase = devm_platform_ioremap_resource(pdev, 0);
 if (IS_ERR(i2s->iobase))
  return PTR_ERR(i2s->iobase);

 i2s->iobase_irq = devm_platform_ioremap_resource(pdev, 1);
 if (IS_ERR(i2s->iobase_irq))
  return PTR_ERR(i2s->iobase_irq);

 i2s->tx_bytes_to_fetch = (chv3_i2s_rd(i2s, I2S_TX_IRQ_CONST) >> 8) & 0xffff;

 i2s->dev = &pdev->dev;
 dev_set_drvdata(&pdev->dev, i2s);

 irq = platform_get_irq(pdev, 0);
 if (irq < 0)
  return -ENXIO;
 res = devm_request_irq(i2s->dev, irq, chv3_i2s_isr, 0, "chv3-i2s", i2s);
 if (res)
  return res;

 res = devm_snd_soc_register_component(&pdev->dev, &chv3_i2s_comp,
           &chv3_i2s_dai, 1);
 if (res) {
  dev_err(&pdev->dev, "couldn't register component: %d\n", res);
  return res;
 }

 return 0;
}

static const struct of_device_id chv3_i2s_of_match[] = {
 { .compatible = "google,chv3-i2s" },
 {},
};
MODULE_DEVICE_TABLE(of, chv3_i2s_of_match);

static struct platform_driver chv3_i2s_driver = {
 .probe = chv3_i2s_probe,
 .driver = {
  .name = "chv3-i2s",
  .of_match_table = chv3_i2s_of_match,
 },
};

module_platform_driver(chv3_i2s_driver);

MODULE_AUTHOR("Pawel Anikiel <pan@semihalf.com>");
MODULE_DESCRIPTION("Chameleon v3 I2S interface");
MODULE_LICENSE("GPL");