static bool bcma_sprom_ext_available()

in sprom.c [480:511]

• 25 lines of code
• 5 McCabe index (conditional complexity)

static bool bcma_sprom_ext_available(struct bcma_bus *bus)
{
	u32 chip_status;
	u32 srom_control;
	u32 present_mask;

	if (bus->drv_cc.core->id.rev >= 31) {
		if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM))
			return false;

		srom_control = bcma_read32(bus->drv_cc.core,
					   BCMA_CC_SROM_CONTROL);
		return srom_control & BCMA_CC_SROM_CONTROL_PRESENT;
	}

	/* older chipcommon revisions use chip status register */
	chip_status = bcma_read32(bus->drv_cc.core, BCMA_CC_CHIPSTAT);
	switch (bus->chipinfo.id) {
	case BCMA_CHIP_ID_BCM4313:
		present_mask = BCMA_CC_CHIPST_4313_SPROM_PRESENT;
		break;

	case BCMA_CHIP_ID_BCM4331:
		present_mask = BCMA_CC_CHIPST_4331_SPROM_PRESENT;
		break;

	default:
		return true;
	}

	return chip_status & present_mask;
}