static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) { uint32_t tag; uint32_t bufsize; uint32_t tot_len; size_t resplen; uint32_t tmp; value &= ~0xf; s->addr = value; tot_len = ldl_phys(&s->dma_as, value); /* @(addr + 4) : Buffer response code */ value = s->addr + 8; while (value + 8 <= s->addr + tot_len) { tag = ldl_phys(&s->dma_as, value); bufsize = ldl_phys(&s->dma_as, value + 4); /* @(value + 8) : Request/response indicator */ resplen = 0; switch (tag) { case 0x00000000: /* End tag */ break; case 0x00000001: /* Get firmware revision */ stl_phys(&s->dma_as, value + 12, 346337); resplen = 4; break; case 0x00010001: /* Get board model */ qemu_log_mask(LOG_UNIMP, "bcm2835_property: %x get board model NYI\n", tag); resplen = 4; break; case 0x00010002: /* Get board revision */ qemu_log_mask(LOG_UNIMP, "bcm2835_property: %x get board revision NYI\n", tag); resplen = 4; break; case 0x00010003: /* Get board MAC address */ resplen = sizeof(s->macaddr.a); dma_memory_write(&s->dma_as, value + 12, s->macaddr.a, resplen); break; case 0x00010004: /* Get board serial */ qemu_log_mask(LOG_UNIMP, "bcm2835_property: %x get board serial NYI\n", tag); resplen = 8; break; case 0x00010005: /* Get ARM memory */ /* base */ stl_phys(&s->dma_as, value + 12, 0); /* size */ stl_phys(&s->dma_as, value + 16, s->ram_size); resplen = 8; break; case 0x00028001: /* Set power state */ /* Assume that whatever device they asked for exists, * and we'll just claim we set it to the desired state */ tmp = ldl_phys(&s->dma_as, value + 16); stl_phys(&s->dma_as, value + 16, (tmp & 1)); resplen = 8; break; /* Clocks */ case 0x00030001: /* Get clock state */ stl_phys(&s->dma_as, value + 16, 0x1); resplen = 8; break; case 0x00038001: /* Set clock state */ qemu_log_mask(LOG_UNIMP, "bcm2835_property: %x set clock state NYI\n", tag); resplen = 8; break; case 0x00030002: /* Get clock rate */ case 0x00030004: /* Get max clock rate */ case 0x00030007: /* Get min clock rate */ switch (ldl_phys(&s->dma_as, value + 12)) { case 1: /* EMMC */ stl_phys(&s->dma_as, value + 16, 50000000); break; case 2: /* UART */ stl_phys(&s->dma_as, value + 16, 3000000); break; default: stl_phys(&s->dma_as, value + 16, 700000000); break; } resplen = 8; break; case 0x00038002: /* Set clock rate */ case 0x00038004: /* Set max clock rate */ case 0x00038007: /* Set min clock rate */ qemu_log_mask(LOG_UNIMP, "bcm2835_property: %x set clock rates NYI\n", tag); resplen = 8; break; /* Temperature */ case 0x00030006: /* Get temperature */ stl_phys(&s->dma_as, value + 16, 25000); resplen = 8; break; case 0x0003000A: /* Get max temperature */ stl_phys(&s->dma_as, value + 16, 99000); resplen = 8; break; case 0x00060001: /* Get DMA channels */ /* channels 2-5 */ stl_phys(&s->dma_as, value + 12, 0x003C); resplen = 4; break; case 0x00050001: /* Get command line */ resplen = 0; break; default: qemu_log_mask(LOG_GUEST_ERROR, "bcm2835_property: unhandled tag %08x\n", tag); break; } if (tag == 0) { break; } stl_phys(&s->dma_as, value + 8, (1 << 31) | resplen); value += bufsize + 12; } /* Buffer response code */ stl_phys(&s->dma_as, s->addr + 4, (1 << 31)); }