diff options
Diffstat (limited to 'hw/sd/bcm2835_sdhost.c')
| -rw-r--r-- | hw/sd/bcm2835_sdhost.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/hw/sd/bcm2835_sdhost.c b/hw/sd/bcm2835_sdhost.c index 4df4de7d67..1b760b2a7c 100644 --- a/hw/sd/bcm2835_sdhost.c +++ b/hw/sd/bcm2835_sdhost.c @@ -179,9 +179,11 @@ static void bcm2835_sdhost_fifo_run(BCM2835SDHostState *s) uint32_t value = 0; int n; int is_read; + int is_write; is_read = (s->cmd & SDCMD_READ_CMD) != 0; - if (s->datacnt != 0 && (!is_read || sdbus_data_ready(&s->sdbus))) { + is_write = (s->cmd & SDCMD_WRITE_CMD) != 0; + if (s->datacnt != 0 && (is_write || sdbus_data_ready(&s->sdbus))) { if (is_read) { n = 0; while (s->datacnt && s->fifo_len < BCM2835_SDHOST_FIFO_LEN) { @@ -201,8 +203,11 @@ static void bcm2835_sdhost_fifo_run(BCM2835SDHostState *s) if (n != 0) { bcm2835_sdhost_fifo_push(s, value); s->status |= SDHSTS_DATA_FLAG; + if (s->config & SDHCFG_DATA_IRPT_EN) { + s->status |= SDHSTS_SDIO_IRPT; + } } - } else { /* write */ + } else if (is_write) { /* write */ n = 0; while (s->datacnt > 0 && (s->fifo_len > 0 || n > 0)) { if (n == 0) { @@ -223,11 +228,18 @@ static void bcm2835_sdhost_fifo_run(BCM2835SDHostState *s) s->edm &= ~SDEDM_FSM_MASK; s->edm |= SDEDM_FSM_DATAMODE; trace_bcm2835_sdhost_edm_change("datacnt 0", s->edm); - - if ((s->cmd & SDCMD_WRITE_CMD) && + } + if (is_write) { + /* set block interrupt at end of each block transfer */ + if (s->hbct && s->datacnt % s->hbct == 0 && (s->config & SDHCFG_BLOCK_IRPT_EN)) { s->status |= SDHSTS_BLOCK_IRPT; } + /* set data interrupt after each transfer */ + s->status |= SDHSTS_DATA_FLAG; + if (s->config & SDHCFG_DATA_IRPT_EN) { + s->status |= SDHSTS_SDIO_IRPT; + } } } |