drivers/net/wireless/ath/ath11k/ahb.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ath/ath11k/ahb.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ath/ath11k/ahb.c
Extension
.c
Size
32581 bytes
Lines
1316
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (irq_grp->napi_enabled) {
			napi_synchronize(&irq_grp->napi);
			napi_disable(&irq_grp->napi);
			irq_grp->napi_enabled = false;
		}
	}
}

static void ath11k_ahb_ext_grp_enable(struct ath11k_ext_irq_grp *irq_grp)
{
	int i;

	for (i = 0; i < irq_grp->num_irq; i++)
		enable_irq(irq_grp->ab->irq_num[irq_grp->irqs[i]]);
}

static void ath11k_ahb_setbit32(struct ath11k_base *ab, u8 bit, u32 offset)
{
	u32 val;

	val = ath11k_ahb_read32(ab, offset);
	ath11k_ahb_write32(ab, offset, val | BIT(bit));
}

static void ath11k_ahb_clearbit32(struct ath11k_base *ab, u8 bit, u32 offset)
{
	u32 val;

	val = ath11k_ahb_read32(ab, offset);
	ath11k_ahb_write32(ab, offset, val & ~BIT(bit));
}

static void ath11k_ahb_ce_irq_enable(struct ath11k_base *ab, u16 ce_id)
{
	const struct ce_attr *ce_attr;
	const struct ce_ie_addr *ce_ie_addr = ab->hw_params.ce_ie_addr;
	u32 ie1_reg_addr, ie2_reg_addr, ie3_reg_addr;

	ie1_reg_addr = ce_ie_addr->ie1_reg_addr + ATH11K_CE_OFFSET(ab);
	ie2_reg_addr = ce_ie_addr->ie2_reg_addr + ATH11K_CE_OFFSET(ab);
	ie3_reg_addr = ce_ie_addr->ie3_reg_addr + ATH11K_CE_OFFSET(ab);

	ce_attr = &ab->hw_params.host_ce_config[ce_id];
	if (ce_attr->src_nentries)
		ath11k_ahb_setbit32(ab, ce_id, ie1_reg_addr);

	if (ce_attr->dest_nentries) {
		ath11k_ahb_setbit32(ab, ce_id, ie2_reg_addr);
		ath11k_ahb_setbit32(ab, ce_id + CE_HOST_IE_3_SHIFT,
				    ie3_reg_addr);
	}
}

static void ath11k_ahb_ce_irq_disable(struct ath11k_base *ab, u16 ce_id)
{
	const struct ce_attr *ce_attr;
	const struct ce_ie_addr *ce_ie_addr = ab->hw_params.ce_ie_addr;
	u32 ie1_reg_addr, ie2_reg_addr, ie3_reg_addr;

	ie1_reg_addr = ce_ie_addr->ie1_reg_addr + ATH11K_CE_OFFSET(ab);
	ie2_reg_addr = ce_ie_addr->ie2_reg_addr + ATH11K_CE_OFFSET(ab);
	ie3_reg_addr = ce_ie_addr->ie3_reg_addr + ATH11K_CE_OFFSET(ab);

	ce_attr = &ab->hw_params.host_ce_config[ce_id];
	if (ce_attr->src_nentries)
		ath11k_ahb_clearbit32(ab, ce_id, ie1_reg_addr);

	if (ce_attr->dest_nentries) {
		ath11k_ahb_clearbit32(ab, ce_id, ie2_reg_addr);
		ath11k_ahb_clearbit32(ab, ce_id + CE_HOST_IE_3_SHIFT,
				      ie3_reg_addr);
	}
}

static void ath11k_ahb_sync_ce_irqs(struct ath11k_base *ab)
{
	int i;
	int irq_idx;

	for (i = 0; i < ab->hw_params.ce_count; i++) {
		if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
			continue;

		irq_idx = ATH11K_IRQ_CE0_OFFSET + i;
		synchronize_irq(ab->irq_num[irq_idx]);
	}
}

static void ath11k_ahb_sync_ext_irqs(struct ath11k_base *ab)
{

Annotation

Implementation Notes