drivers/net/ethernet/mediatek/mtk_wed_debugfs.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
Extension
.c
Size
20824 bytes
Lines
638
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

struct reg_dump {
	const char *name;
	u16 offset;
	u8 type;
	u8 base;
	u32 mask;
};

enum {
	DUMP_TYPE_STRING,
	DUMP_TYPE_WED,
	DUMP_TYPE_WDMA,
	DUMP_TYPE_WPDMA_TX,
	DUMP_TYPE_WPDMA_TXFREE,
	DUMP_TYPE_WPDMA_RX,
	DUMP_TYPE_WED_RRO,
};

#define DUMP_STR(_str) { _str, 0, DUMP_TYPE_STRING }
#define DUMP_REG(_reg, ...) { #_reg, MTK_##_reg, __VA_ARGS__ }
#define DUMP_REG_MASK(_reg, _mask)	\
	{ #_mask, MTK_##_reg, DUMP_TYPE_WED, 0, MTK_##_mask }
#define DUMP_RING(_prefix, _base, ...)				\
	{ _prefix " BASE", _base, __VA_ARGS__ },		\
	{ _prefix " CNT",  _base + 0x4, __VA_ARGS__ },	\
	{ _prefix " CIDX", _base + 0x8, __VA_ARGS__ },	\
	{ _prefix " DIDX", _base + 0xc, __VA_ARGS__ }

#define DUMP_WED(_reg) DUMP_REG(_reg, DUMP_TYPE_WED)
#define DUMP_WED_MASK(_reg, _mask) DUMP_REG_MASK(_reg, _mask)
#define DUMP_WED_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WED)

#define DUMP_WDMA(_reg) DUMP_REG(_reg, DUMP_TYPE_WDMA)
#define DUMP_WDMA_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WDMA)

#define DUMP_WPDMA_TX_RING(_n) DUMP_RING("WPDMA_TX" #_n, 0, DUMP_TYPE_WPDMA_TX, _n)
#define DUMP_WPDMA_TXFREE_RING DUMP_RING("WPDMA_RX1", 0, DUMP_TYPE_WPDMA_TXFREE)
#define DUMP_WPDMA_RX_RING(_n)	DUMP_RING("WPDMA_RX" #_n, 0, DUMP_TYPE_WPDMA_RX, _n)
#define DUMP_WED_RRO_RING(_base)DUMP_RING("WED_RRO_MIOD", MTK_##_base, DUMP_TYPE_WED_RRO)
#define DUMP_WED_RRO_FDBK(_base)DUMP_RING("WED_RRO_FDBK", MTK_##_base, DUMP_TYPE_WED_RRO)

static void
print_reg_val(struct seq_file *s, const char *name, u32 val)
{
	seq_printf(s, "%-32s %08x\n", name, val);
}

static void
dump_wed_regs(struct seq_file *s, struct mtk_wed_device *dev,
	      const struct reg_dump *regs, int n_regs)
{
	const struct reg_dump *cur;
	u32 val;

	for (cur = regs; cur < &regs[n_regs]; cur++) {
		switch (cur->type) {
		case DUMP_TYPE_STRING:
			seq_printf(s, "%s======== %s:\n",
				   cur > regs ? "\n" : "",
				   cur->name);
			continue;
		case DUMP_TYPE_WED_RRO:
		case DUMP_TYPE_WED:
			val = wed_r32(dev, cur->offset);
			break;
		case DUMP_TYPE_WDMA:
			val = wdma_r32(dev, cur->offset);
			break;
		case DUMP_TYPE_WPDMA_TX:
			val = wpdma_tx_r32(dev, cur->base, cur->offset);
			break;
		case DUMP_TYPE_WPDMA_TXFREE:
			val = wpdma_txfree_r32(dev, cur->offset);
			break;
		case DUMP_TYPE_WPDMA_RX:
			val = wpdma_rx_r32(dev, cur->base, cur->offset);
			break;
		}
		print_reg_val(s, cur->name, val);
	}
}

static int
wed_txinfo_show(struct seq_file *s, void *data)
{
	static const struct reg_dump regs[] = {
		DUMP_STR("WED TX"),
		DUMP_WED(WED_TX_MIB(0)),
		DUMP_WED_RING(WED_RING_TX(0)),

Annotation

Implementation Notes