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PCM bottom layer simplification. pcm_rec_peak_addr variable no longer has to be handled there. Driver can just return current pointer for recording peaks. A new define, HAVE_PCM_REC_DMA_ADDRESS, specifies that physical addresses are being used for recording and translation is needed before starting a new block. The drivers need not worry about aligning start and size nor should care if either will be zero. All this will be checked in the logical layer first.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25970 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2010-05-12 14:05:36 +00:00
parent f2df42ee91
commit 4d04132c76
10 changed files with 79 additions and 104 deletions
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1
firmware/export/config/gigabeats.h
View file

@ -220,6 +220,7 @@
/* #define HAVE_ADJUSTABLE_CPU_FREQ */
#define HAVE_PCM_DMA_ADDRESS
#define HAVE_PCM_REC_DMA_ADDRESS
#define BOOTFILE_EXT "gigabeat"
#define BOOTFILE "rockbox." BOOTFILE_EXT

4
firmware/export/pcm.h
View file

@ -140,7 +140,6 @@ void pcm_calculate_rec_peaks(int *left, int *right);
/** The following are for internal use between pcm.c and target-
specific portion **/
extern volatile const void *pcm_rec_peak_addr;
/* the registered callback function for when more data is available */
extern volatile pcm_more_callback_type2 pcm_callback_more_ready;
/* DMA transfer in is currently active */
@ -150,9 +149,10 @@ extern volatile bool pcm_recording;
void pcm_rec_dma_init(void);
void pcm_rec_dma_close(void);
void pcm_rec_dma_start(void *addr, size_t size);
void pcm_rec_dma_record_more(void *start, size_t size);
void pcm_rec_dma_stop(void);
void pcm_rec_dma_stopped_callback(void);
const void * pcm_rec_dma_get_peak_buffer(int *count);
const void * pcm_rec_dma_get_peak_buffer(void);
#endif /* HAVE_RECORDING */

60
firmware/pcm.c
View file

@ -40,7 +40,6 @@
* pcm_play_unlock
* Semi-private -
* pcm_play_dma_init
* pcm_play_dma_init
* pcm_play_dma_start
* pcm_play_dma_stop
* pcm_play_dma_pause
@ -66,10 +65,10 @@
* pcm_rec_dma_init
* pcm_rec_dma_close
* pcm_rec_dma_start
* pcm_rec_dma_record_more
* pcm_rec_dma_stop
* pcm_rec_dma_get_peak_buffer
* Data Read/Written within TSP -
* pcm_rec_peak_addr (R/W)
* pcm_callback_more_ready (R)
* pcm_recording (R)
*
@ -210,6 +209,9 @@ void pcm_init(void)
/* Common code to pcm_play_data and pcm_play_pause */
static void pcm_play_data_start(unsigned char *start, size_t size)
{
start = (unsigned char *)(((uintptr_t)start + 3) & ~3);
size &= ~3;
if (!(start && size))
{
pcm_more_callback_type get_more = pcm_callback_for_more;
@ -218,6 +220,9 @@ static void pcm_play_data_start(unsigned char *start, size_t size)
{
logf(" get_more");
get_more(&start, &size);
start = (unsigned char *)(((uintptr_t)start + 3) & ~3);
size &= ~3;
}
}
@ -359,7 +364,7 @@ bool pcm_is_paused(void)
/** Low level pcm recording apis **/
/* Next start for recording peaks */
const volatile void *pcm_rec_peak_addr SHAREDBSS_ATTR = NULL;
static const void * volatile pcm_rec_peak_addr SHAREDBSS_ATTR = NULL;
/* the registered callback function for when more data is available */
volatile pcm_more_callback_type2
pcm_callback_more_ready SHAREDBSS_ATTR = NULL;
@ -373,17 +378,23 @@ volatile bool pcm_recording SHAREDBSS_ATTR = false;
void pcm_calculate_rec_peaks(int *left, int *right)
{
static int peaks[2];
int count;
const void *addr = pcm_rec_dma_get_peak_buffer(&count);
if (pcm_recording)
{
const void *peak_addr = pcm_rec_peak_addr;
const void *addr = pcm_rec_dma_get_peak_buffer();
if (addr != NULL)
{
int count = (int)(((intptr_t)addr - (intptr_t)peak_addr) >> 2);
if (count > 0)
{
pcm_peak_peeker(addr, count, peaks);
pcm_peak_peeker(peak_addr, count, peaks);
if (addr == pcm_rec_peak_addr)
pcm_rec_peak_addr = (int32_t *)addr + count;
if (peak_addr == pcm_rec_peak_addr)
pcm_rec_peak_addr = addr;
}
}
/* else keep previous peak values */
}
@ -443,6 +454,10 @@ void pcm_record_data(pcm_more_callback_type2 more_ready,
{
logf("pcm_record_data");
/* 32-bit aligned and sized data only */
start = (void *)(((uintptr_t)start + 3) & ~3);
size &= ~3;
if (!(start && size))
{
logf(" no buffer");
@ -453,6 +468,13 @@ void pcm_record_data(pcm_more_callback_type2 more_ready,
pcm_callback_more_ready = more_ready;
#ifdef HAVE_PCM_REC_DMA_ADDRESS
/* Need a physical DMA address translation, if not already physical. */
pcm_rec_peak_addr = pcm_dma_addr(start);
#else
pcm_rec_peak_addr = start;
#endif
logf(" pcm_rec_dma_start");
pcm_apply_settings();
pcm_rec_dma_start(start, size);
@ -477,6 +499,28 @@ void pcm_stop_recording(void)
pcm_rec_unlock();
} /* pcm_stop_recording */
void pcm_record_more(void *start, size_t size)
{
start = (void *)(((uintptr_t)start + 3) & ~3);
size = size & ~3;
if (!size)
{
pcm_rec_dma_stop();
pcm_rec_dma_stopped_callback();
return;
}
#ifdef HAVE_PCM_REC_DMA_ADDRESS
/* Need a physical DMA address translation, if not already physical. */
pcm_rec_peak_addr = pcm_dma_addr(start);
#else
pcm_rec_peak_addr = start;
#endif
pcm_rec_dma_record_more(start, size);
}
bool pcm_is_recording(void)
{
return pcm_recording;

13
firmware/target/arm/as3525/pcm-as3525.c
View file

@ -202,7 +202,7 @@ void pcm_rec_unlock(void)
}
void pcm_record_more(void *start, size_t size)
void pcm_rec_dma_record_more(void *start, size_t size)
{
rec_start_addr = start;
rec_size = size;
@ -331,16 +331,9 @@ void pcm_rec_dma_init(void)
}
const void * pcm_rec_dma_get_peak_buffer(int *count)
const void * pcm_rec_dma_get_peak_buffer(void)
{
const void *peak_buffer;
pcm_rec_lock();
*count = rec_size >> 2;
peak_buffer = (const void*)rec_start_addr;
pcm_rec_unlock();
return peak_buffer;
return (const void*)rec_start_addr;
}
#endif /* HAVE_RECORDING */

27
firmware/target/arm/imx31/gigabeat-s/pcm-gigabeat-s.c
View file

@ -432,17 +432,13 @@ void pcm_rec_unlock(void)
}
}
void pcm_record_more(void *start, size_t size)
void pcm_rec_dma_record_more(void *start, size_t size)
{
start = (void *)(((unsigned long)start + 3) & ~3);
size &= ~3;
/* Invalidate - buffer must be coherent */
dump_dcache_range(start, size);
start = (void *)addr_virt_to_phys((unsigned long)start);
pcm_rec_peak_addr = start;
dma_rec_bd.buf_addr = start;
dma_rec_bd.mode.count = size;
dma_rec_bd.mode.command = TRANSFER_16BIT;
@ -469,12 +465,6 @@ void pcm_rec_dma_start(void *addr, size_t size)
{
pcm_rec_dma_stop();
addr = (void *)(((unsigned long)addr + 3) & ~3);
size &= ~3;
if (size <= 0)
return;
if (!sdma_channel_reset(DMA_REC_CH_NUM))
return;
@ -482,7 +472,6 @@ void pcm_rec_dma_start(void *addr, size_t size)
dump_dcache_range(addr, size);
addr = (void *)addr_virt_to_phys((unsigned long)addr);
pcm_rec_peak_addr = addr;
dma_rec_bd.buf_addr = addr;
dma_rec_bd.mode.count = size;
dma_rec_bd.mode.command = TRANSFER_16BIT;
@ -524,10 +513,10 @@ void pcm_rec_dma_init(void)
sdma_channel_set_priority(DMA_REC_CH_NUM, DMA_REC_CH_PRIORITY);
}
const void * pcm_rec_dma_get_peak_buffer(int *count)
const void * pcm_rec_dma_get_peak_buffer(void)
{
static unsigned long pda NOCACHEBSS_ATTR;
unsigned long buf, addr, end, bufend;
unsigned long buf, end, bufend;
int oldstatus;
/* read burst dma destination address register in channel context */
@ -536,19 +525,13 @@ const void * pcm_rec_dma_get_peak_buffer(int *count)
oldstatus = disable_irq_save();
end = pda;
buf = (unsigned long)dma_rec_bd.buf_addr;
addr = (unsigned long)pcm_rec_peak_addr;
bufend = buf + dma_rec_bd.mode.count;
restore_irq(oldstatus);
/* Be addresses are coherent (no buffer change during read) */
if (addr >= buf && addr < bufend &&
end >= buf && end < bufend)
{
*count = (end >> 2) - (addr >> 2);
return (void *)(addr & ~3);
}
if (end >= buf && end < bufend)
return (void *)(end & ~3);
*count = 0;
return NULL;
}

22
firmware/target/arm/pcm-pp.c
View file

@ -431,9 +431,6 @@ static void play_stop_pcm(void)
void pcm_play_dma_start(const void *addr, size_t size)
{
addr = (void *)(((long)addr + 2) & ~3);
size &= ~3;
#if NUM_CORES > 1
/* This will become more important later - and different ! */
dma_play_data.core = processor_id(); /* save initiating core */
@ -441,9 +438,6 @@ void pcm_play_dma_start(const void *addr, size_t size)
pcm_play_dma_stop();
if (size == 0)
return;
#ifdef CPU_PP502x
if ((unsigned long)addr < UNCACHED_BASE_ADDR) {
/* Flush any pending cache writes */
@ -691,9 +685,8 @@ void fiq_record(void)
#endif /* SANSA_E200 */
/* Continue transferring data in */
void pcm_record_more(void *start, size_t size)
void pcm_rec_dma_record_more(void *start, size_t size)
{
pcm_rec_peak_addr = start; /* Start peaking at dest */
dma_rec_data.addr = (unsigned long)start; /* Start of RX buffer */
dma_rec_data.size = size; /* Bytes to transfer */
}
@ -718,7 +711,6 @@ void pcm_rec_dma_start(void *addr, size_t size)
{
pcm_rec_dma_stop();
pcm_rec_peak_addr = addr;
dma_rec_data.addr = (unsigned long)addr;
dma_rec_data.size = size;
#if NUM_CORES > 1
@ -749,17 +741,9 @@ void pcm_rec_dma_init(void)
pcm_rec_dma_stop();
} /* pcm_init */
const void * pcm_rec_dma_get_peak_buffer(int *count)
const void * pcm_rec_dma_get_peak_buffer(void)
{
unsigned long addr, end;
int status = disable_fiq_save();
addr = (unsigned long)pcm_rec_peak_addr;
end = dma_rec_data.addr;
restore_fiq(status);
*count = (end >> 2) - (addr >> 2);
return (void *)(addr & ~3);
return (void *)((unsigned long)dma_rec_data.addr & ~3);
} /* pcm_rec_dma_get_peak_buffer */
#endif /* HAVE_RECORDING */

7
firmware/target/arm/pcm-telechips.c
View file

@ -141,8 +141,8 @@ static void play_stop_pcm(void)
void pcm_play_dma_start(const void *addr, size_t size)
{
dma_play_data.p = (void *)(((uintptr_t)addr + 2) & ~3);
dma_play_data.size = (size & ~3);
dma_play_data.p = addr;
dma_play_data.size = size;
#if NUM_CORES > 1
/* This will become more important later - and different ! */
@ -229,9 +229,8 @@ void pcm_rec_unlock(void)
{
}
const void * pcm_rec_dma_get_peak_buffer(int *count)
const void * pcm_rec_dma_get_peak_buffer(void)
{
*count = 0;
return NULL;
}

6
firmware/target/arm/s5l8700/pcm-s5l8700.c
View file

@ -367,7 +367,7 @@ void pcm_rec_unlock(void)
{
}
void pcm_record_more(void *start, size_t size)
void pcm_rec_dma_record_more(void *start, size_t size)
{
(void)start;
(void)size;
@ -393,9 +393,9 @@ void pcm_rec_dma_init(void)
}
const void * pcm_rec_dma_get_peak_buffer(int *count)
const void * pcm_rec_dma_get_peak_buffer(void)
{
(void)count;
return NULL;
}
#endif /* HAVE_RECORDING */

34
firmware/target/coldfire/pcm-coldfire.c
View file

@ -235,12 +235,6 @@ void pcm_play_dma_start(const void *addr, size_t size)
/* Stop any DMA in progress */
pcm_play_dma_stop();
addr = (void *)(((long)addr + 3) & ~3);
size &= ~3;
if (size <= 0)
return;
/* Set up DMA transfer */
SAR0 = (unsigned long)addr; /* Source address */
DAR0 = (unsigned long)&PDOR3; /* Destination address */
@ -382,12 +376,6 @@ void pcm_rec_dma_start(void *addr, size_t size)
/* stop any DMA in progress */
pcm_rec_dma_stop();
addr = (void *)(((long)addr + 3) & ~3);
size &= ~3;
if (size <= 0)
return;
and_l(~PDIR2_FIFO_RESET, &DATAINCONTROL);
/* Start the DMA transfer.. */
@ -396,7 +384,6 @@ void pcm_rec_dma_start(void *addr, size_t size)
INTERRUPTCLEAR = (1 << 25) | (1 << 24) | (1 << 23) | (1 << 22);
#endif
pcm_rec_peak_addr = (unsigned long *)addr; /* Start peaking at dest */
SAR1 = (unsigned long)&PDIR2; /* Source address */
DAR1 = (unsigned long)addr; /* Destination address */
BCR1 = (unsigned long)size; /* Bytes to transfer */
@ -490,30 +477,15 @@ void DMA1(void)
} /* DMA1 */
/* Continue transferring data in - call from interrupt callback */
void pcm_record_more(void *start, size_t size)
void pcm_rec_dma_record_more(void *start, size_t size)
{
start = (void *)(((long)start + 3) & ~3);
size &= ~3;
pcm_rec_peak_addr = (unsigned long *)start; /* Start peaking at dest */
DAR1 = (unsigned long)start; /* Destination address */
BCR1 = (unsigned long)size; /* Bytes to transfer */
or_l(DMA_EEXT | DMA_INT, &DCR1); /* per request and int ON */
} /* pcm_record_more */
const void * pcm_rec_dma_get_peak_buffer(int *count)
const void * pcm_rec_dma_get_peak_buffer(void)
{
unsigned long addr, end;
/* Make sure interrupt doesn't change the second value after we read the
* first value. */
int level = set_irq_level(DMA_IRQ_LEVEL);
addr = (unsigned long)pcm_rec_peak_addr;
end = DAR1;
restore_irq(level);
addr >>= 2;
*count = (end >> 2) - addr;
return (void *)(addr << 2);
return (void *)(DAR1 & ~3);
} /* pcm_rec_dma_get_peak_buffer */
#endif

5
firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c
View file

@ -288,13 +288,12 @@ void pcm_rec_unlock(void)
{
}
const void * pcm_rec_dma_get_peak_buffer(int *count)
const void * pcm_rec_dma_get_peak_buffer(void)
{
*count = 0;
return NULL;
}
void pcm_record_more(void *start, size_t size)
void pcm_rec_dma_record_more(void *start, size_t size)
{
(void) start;
(void) size;