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arch/arm/src/lc823450: Assign I2S IRQ handling to CPU0 

Previous commit assumed that the caller is running on CPU0.
However, the caller sometimes runs at CPU1.  This patch will
assign the caller to CPU0 explicitly.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This commit is contained in:
Masayuki Ishikawa 2018-01-18 12:30:43 +09:00
parent e276d4d16d
commit d43c52cf03
1 changed files with 28 additions and 0 deletions
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28
arch/arm/src/lc823450/lc823450_i2s.c
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@ -51,6 +51,10 @@
#include <nuttx/audio/audio.h>
#include <nuttx/audio/i2s.h>
#ifdef CONFIG_SMP
# include <nuttx/signal.h>
#endif
#include "up_arch.h"
#include "lc823450_dma.h"
#include "lc823450_i2s.h"
@ -460,8 +464,32 @@ FAR struct i2s_dev_s *lc823450_i2sdev_initialize(void)
nxsem_init(&_sem_txdma, 0, 0);
nxsem_init(&_sem_buf_under, 0, 0);
#ifdef CONFIG_SMP
cpu_set_t cpuset0;
cpu_set_t cpuset1;
CPU_ZERO(&cpuset1);
CPU_SET(0, &cpuset1);
/* Backup the current affinity */
sched_getaffinity(getpid(), sizeof(cpuset0), &cpuset0);
/* Set the new affinity which assigns to CPU0 */
sched_setaffinity(getpid(), sizeof(cpuset1), &cpuset1);
nxsig_usleep(10 * 1000);
#endif
irq_attach(LC823450_IRQ_AUDIOBUF0, _i2s_isr, NULL);
#ifdef CONFIG_SMP
/* Restore the original affinity */
sched_setaffinity(getpid(), sizeof(cpuset0), &cpuset0);
nxsig_usleep(10 * 1000);
#endif
/* Enable IRQ for Audio Buffer */
up_enable_irq(LC823450_IRQ_AUDIOBUF0);