1 files changed, 0 insertions, 65 deletions

diff --git a/firmware/target/arm/imx31/gigabeat-s/pcm-imx31.c b/firmware/target/arm/imx31/gigabeat-s/pcm-imx31.c
index c29c4b2930..b62051e41d 100644
--- a/firmware/target/arm/imx31/gigabeat-s/pcm-imx31.c
+++ b/firmware/target/arm/imx31/gigabeat-s/pcm-imx31.c
@@ -29,66 +29,24 @@ static int pcm_freq = HW_SAMPR_DEFAULT; /* 44.1 is default */
 
 void fiq_handler(void) __attribute__((naked));
 
-/* Implement separately on recording and playback - simply disable the
-   specific DMA interrupt. Disable the FIQ itself only temporarily to sync
-   with the DMA interrupt and restore its previous state. The pcm routines
-   will call the lockout first then call into these low-level routines. */
-struct dma_lock
-{
-    int locked;
-    unsigned long state;
-};
-
-static struct dma_play_lock =
-{
-    .locked = 0,
-    .state = 0, /* Initialize this as disabled */
-};
-
 void pcm_play_lock(void)
 {
-    int status = set_fiq_status(FIQ_DISABLED);
-    if (++dma_play_lock.locked == 1)
-        ; /* Mask the DMA interrupt */
-    set_fiq_status(status);
 }
 
 void pcm_play_unlock(void)
 {
-    int status = set_fiq_status(FIQ_DISABLED);
-    if (--dma_play_lock.locked == 0)
-        ; /* Unmask the DMA interrupt if enabled */
-    set_fiq_status(status);
 }
 
 static void _pcm_apply_settings(void)
 {
-    if (pcm_freq != pcm_curr_sampr)
-    {
-        pcm_curr_sampr = pcm_freq;
-        /* Change hardware sample rate */
-        /* */
-    }
 }
 
 void pcm_apply_settings(void)
 {
-    /* Lockout FIQ and sync the hardware to the settings */
-    int oldstatus = set_fiq_status(FIQ_DISABLED);
-    _pcm_apply_settings();
-    set_fiq_status(oldstatus);
 }
 
 void pcm_play_dma_init(void)
 {
-    pcm_set_frequency(SAMPR_44);
-
-#if 0
-    /* Do basic init enable output in pcm_postinit if popping is a
-       problem at boot to enable a lenghy delay and let the boot
-       process continue */
-    audiohw_init();
-#endif
 }
 
 void pcm_postinit(void)
@@ -98,19 +56,11 @@ void pcm_postinit(void)
 /* Connect the DMA and start filling the FIFO */
 static void play_start_pcm(void)
 {
-#if 0
-    /* unmask DMA interrupt when unlocking */
-    dma_play_lock.state = 0; /* Set to allow pcm_play_unlock to unmask interrupt */
-#endif
 }
 
 /* Disconnect the DMA and wait for the FIFO to clear */
 static void play_stop_pcm(void)
 {
-#if 0
-    /* Keep interrupt masked when unlocking */
-    dma_play_lock.state = 0; /* Set to keep pcm_play_unlock from unmasking interrupt */
-#endif
 }
 
 void pcm_play_dma_start(const void *addr, size_t size)
@@ -121,30 +71,16 @@ void pcm_play_dma_start(const void *addr, size_t size)
 
 void pcm_play_dma_stop(void)
 {
-    play_stop_pcm();
 }
 
 void pcm_play_dma_pause(bool pause)
 {
-    if (pause)
-    {
-        play_stop_pcm();
-    }
-    else
-    {
-        play_start_pcm();
-    }
 }
 
 /* Get more samples to play out - call pcm_play_dma_stop and
    pcm_play_dma_stopped_callback if the data runs out */
 void fiq_handler(void)
 {
-#if 0
-    /* Callback missing or no more DMA to do */
-    pcm_play_dma_stop();
-    pcm_play_dma_stopped_callback();
-#endif
 }
 
 /* Set the pcm frequency hardware will use when play is next started or
@@ -152,7 +88,6 @@ void fiq_handler(void)
    hardware here but simply cache it. */
 void pcm_set_frequency(unsigned int frequency)
 {
-     pcm_freq = frequency;
 }
 
 /* Return the number of bytes waiting - full L-R sample pairs only */