[44/75] headers: Add linux/soc/mediatek/mtk_wed.h

Commit Message

Hauke Mehrtens June 27, 2024, 11:47 p.m. UTC

The mt76 driver uses the structures and enums from this header file. We
are not activating this feature on older kernel versions, but allow to
build the mt76 driver.

Signed-off-by: Hauke Mehrtens <[e-mail]>
---
 .../linux/soc/mediatek/mtk_wed.h              | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 backport/backport-include/linux/soc/mediatek/mtk_wed.h

Patch

diff --git a/backport/backport-include/linux/soc/mediatek/mtk_wed.h b/backport/backport-include/linux/soc/mediatek/mtk_wed.h
new file mode 100644
index 00000000..46caa89f
--- /dev/null
+++ b/backport/backport-include/linux/soc/mediatek/mtk_wed.h
@@ -0,0 +1,58 @@ 
+#ifndef __BACKPORT_MTK_WED_H
+#define __BACKPORT_MTK_WED_H
+#include <linux/version.h>
+
+#if LINUX_VERSION_IS_GEQ(5,19,0)
+#include_next <linux/soc/mediatek/mtk_wed.h>
+#else
+#include <linux/kernel.h>
+#include <linux/rcupdate.h>
+#include <linux/regmap.h>
+#include <linux/pci.h>
+
+#define MTK_WED_TX_QUEUES		2
+
+struct mtk_wed_hw;
+struct mtk_wdma_desc;
+
+enum mtk_wed_bus_tye {
+	MTK_WED_BUS_PCIE,
+	MTK_WED_BUS_AXI,
+};
+
+struct mtk_wed_ring {
+	struct mtk_wdma_desc *desc;
+	dma_addr_t desc_phys;
+	u32 desc_size;
+	int size;
+
+	u32 reg_base;
+	void __iomem *wpdma;
+};
+
+struct mtk_wed_device {
+
+};
+
+static inline int
+mtk_wed_device_attach(struct mtk_wed_device *dev)
+{
+	return -ENODEV;
+}
+
+static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
+{
+	return false;
+}
+#define mtk_wed_device_detach(_dev) do {} while (0)
+#define mtk_wed_device_start(_dev, _mask) do {} while (0)
+#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) -ENODEV
+#define mtk_wed_device_txfree_ring_setup(_dev, _ring, _regs) -ENODEV
+#define mtk_wed_device_reg_read(_dev, _reg) 0
+#define mtk_wed_device_reg_write(_dev, _reg, _val) do {} while (0)
+#define mtk_wed_device_irq_get(_dev, _mask) 0
+#define mtk_wed_device_irq_set_mask(_dev, _mask) do {} while (0)
+
+#endif /* >= 5.19.0 */
+
+#endif /* __BACKPORT_MTK_WED_H */