diff options
Diffstat (limited to 'hw/goldfish_mmc.c')
| -rw-r--r-- | hw/goldfish_mmc.c | 85 |
1 files changed, 9 insertions, 76 deletions
diff --git a/hw/goldfish_mmc.c b/hw/goldfish_mmc.c index 8b5c137..3824db9 100644 --- a/hw/goldfish_mmc.c +++ b/hw/goldfish_mmc.c @@ -52,7 +52,6 @@ enum { MMC_STAT_END_OF_CMD = 1U << 0, MMC_STAT_END_OF_DATA = 1U << 1, MMC_STAT_STATE_CHANGE = 1U << 2, - MMC_STAT_CMD_TIMEOUT = 1U << 3, /* MMC_STATE bits */ MMC_STATE_INSERTED = 1U << 0, @@ -83,9 +82,6 @@ struct goldfish_mmc_state { uint8_t* buf; }; -#define GOLDFISH_MMC_MAX 2 -static struct goldfish_mmc_state *gDrvState[GOLDFISH_MMC_MAX]; - #define GOLDFISH_MMC_SAVE_VERSION 2 #define QFIELD_STRUCT struct goldfish_mmc_state QFIELD_BEGIN(goldfish_mmc_fields) @@ -222,24 +218,13 @@ static void goldfish_mmc_do_command(struct goldfish_mmc_state *s, uint32_t cmd, int new_status = MMC_STAT_END_OF_CMD; int opcode = cmd & 63; - //fprintf(stderr, "goldfish_mmc_do_command opcode: %s (0x%04X), arg: %d\n", get_command_name(opcode), cmd, arg); +// fprintf(stderr, "goldfish_mmc_do_command opcode: %s (0x%04X), arg: %d\n", get_command_name(opcode), cmd, arg); + s->resp[0] = 0; s->resp[1] = 0; s->resp[2] = 0; s->resp[3] = 0; - if (!s->bs) { - /* - * No backing store available. Signal a command timeout - * to the host. If the command timeout irq enable is set - * then also set the status bit - otherwise we're assuming - * a legacy driver which doesnt support timeouts. - */ - if (s->int_enable & MMC_STAT_CMD_TIMEOUT) - new_status |= MMC_STAT_CMD_TIMEOUT; - goto skip; - } - #define SET_R1_CURRENT_STATE(s) ((s << 9) & 0x00001E00) /* sx, b (4 bits) */ switch (opcode) { @@ -420,7 +405,6 @@ static void goldfish_mmc_do_command(struct goldfish_mmc_state *s, uint32_t cmd, break; } - skip: s->int_status |= new_status; if ((s->int_status & s->int_enable)) { @@ -430,7 +414,7 @@ static void goldfish_mmc_do_command(struct goldfish_mmc_state *s, uint32_t cmd, static uint32_t goldfish_mmc_read(void *opaque, target_phys_addr_t offset) { - uint32_t ret = 0; + uint32_t ret; struct goldfish_mmc_state *s = opaque; switch(offset) { @@ -446,11 +430,9 @@ static uint32_t goldfish_mmc_read(void *opaque, target_phys_addr_t offset) case MMC_RESP_3: return s->resp[3]; case MMC_STATE: { - if (s->bs) { - ret = MMC_STATE_INSERTED; - if (bdrv_is_read_only(s->bs)) { - ret |= MMC_STATE_READ_ONLY; - } + ret = MMC_STATE_INSERTED; + if (bdrv_is_read_only(s->bs)) { + ret |= MMC_STATE_READ_ONLY; } return ret; } @@ -517,71 +499,22 @@ static CPUWriteMemoryFunc *goldfish_mmc_writefn[] = { goldfish_mmc_write }; -void goldfish_mmc_init(uint32_t base, int id) +void goldfish_mmc_init(uint32_t base, int id, BlockDriverState* bs) { struct goldfish_mmc_state *s; - if (id >= GOLDFISH_MMC_MAX) { - fprintf(stderr, "mmc controller %d out of range\n", id); - return; - } - s = (struct goldfish_mmc_state *)qemu_mallocz(sizeof(*s)); s->dev.name = "goldfish_mmc"; s->dev.id = id; s->dev.base = base; s->dev.size = 0x1000; s->dev.irq_count = 1; - s->bs = NULL; + s->bs = bs; s->buf = qemu_memalign(512,512); - gDrvState[id] = s; - goldfish_device_add(&s->dev, goldfish_mmc_readfn, goldfish_mmc_writefn, s); - register_savevm( (!id ? "goldfish_mmc0" : "goldfish_mmc1"), - id, GOLDFISH_MMC_SAVE_VERSION, + register_savevm( "goldfish_mmc", 0, GOLDFISH_MMC_SAVE_VERSION, goldfish_mmc_save, goldfish_mmc_load, s); } -static void goldfish_mmc_setbs(struct goldfish_mmc_state* s, BlockDriverState* bs) -{ - s->bs = bs; - s->int_status |= MMC_STAT_STATE_CHANGE; - - /* - * Legacy - only send state change irq if - * the driver has the CMD_TIMEOUT irq enabled. - */ - if (s->int_enable & MMC_STAT_CMD_TIMEOUT) - goldfish_device_set_irq(&s->dev, 0, (s->int_status & s->int_enable)); -} - -void goldfish_mmc_insert(int id, BlockDriverState* bs) -{ - if (id >= GOLDFISH_MMC_MAX) { - return -1; - } - - goldfish_mmc_setbs(gDrvState[id], bs); -} - -int goldfish_mmc_is_media_inserted(int id) -{ - if (id > GOLDFISH_MMC_MAX) { - return -1; - } - - return (gDrvState[id]->bs != NULL); -} - -void goldfish_mmc_remove(int id) -{ - if (id >= GOLDFISH_MMC_MAX) { - return -1; - } - - goldfish_mmc_setbs(gDrvState[id], NULL); -} - - |