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#ifndef __MTK_WED_H
#define __MTK_WED_H
#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 {
#ifdef CONFIG_NET_MEDIATEK_SOC_WED
const struct mtk_wed_ops *ops;
struct device *dev;
struct mtk_wed_hw *hw;
bool init_done, running;
int wdma_idx;
int irq;
struct mtk_wed_ring tx_ring[MTK_WED_TX_QUEUES];
struct mtk_wed_ring txfree_ring;
struct mtk_wed_ring tx_wdma[MTK_WED_TX_QUEUES];
struct {
int size;
void **pages;
struct mtk_wdma_desc *desc;
dma_addr_t desc_phys;
} buf_ring;
/* filled by driver: */
struct {
union {
struct platform_device *platform_dev;
struct pci_dev *pci_dev;
};
enum mtk_wed_bus_tye bus_type;
u32 wpdma_phys;
u32 wpdma_int;
u32 wpdma_mask;
u32 wpdma_tx;
u32 wpdma_txfree;
u16 token_start;
unsigned int nbuf;
u8 tx_tbit[MTK_WED_TX_QUEUES];
u8 txfree_tbit;
u32 (*init_buf)(void *ptr, dma_addr_t phys, int token_id);
int (*offload_enable)(struct mtk_wed_device *wed);
void (*offload_disable)(struct mtk_wed_device *wed);
} wlan;
#endif
};
struct mtk_wed_ops {
int (*attach)(struct mtk_wed_device *dev);
int (*tx_ring_setup)(struct mtk_wed_device *dev, int ring,
void __iomem *regs);
int (*txfree_ring_setup)(struct mtk_wed_device *dev,
void __iomem *regs);
void (*detach)(struct mtk_wed_device *dev);
void (*stop)(struct mtk_wed_device *dev);
void (*start)(struct mtk_wed_device *dev, u32 irq_mask);
void (*reset_dma)(struct mtk_wed_device *dev);
u32 (*reg_read)(struct mtk_wed_device *dev, u32 reg);
void (*reg_write)(struct mtk_wed_device *dev, u32 reg, u32 val);
u32 (*irq_get)(struct mtk_wed_device *dev, u32 mask);
void (*irq_set_mask)(struct mtk_wed_device *dev, u32 mask);
};
extern const struct mtk_wed_ops __rcu *mtk_soc_wed_ops;
static inline int
mtk_wed_device_attach(struct mtk_wed_device *dev)
{
int ret = -ENODEV;
#ifdef CONFIG_NET_MEDIATEK_SOC_WED
rcu_read_lock();
dev->ops = rcu_dereference(mtk_soc_wed_ops);
if (dev->ops)
ret = dev->ops->attach(dev);
else
rcu_read_unlock();
if (ret)
dev->ops = NULL;
#endif
return ret;
}
#ifdef CONFIG_NET_MEDIATEK_SOC_WED
#define mtk_wed_device_active(_dev) !!(_dev)->ops
#define mtk_wed_device_detach(_dev) (_dev)->ops->detach(_dev)
#define mtk_wed_device_start(_dev, _mask) (_dev)->ops->start(_dev, _mask)
#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) \
(_dev)->ops->tx_ring_setup(_dev, _ring, _regs)
#define mtk_wed_device_txfree_ring_setup(_dev, _regs) \
(_dev)->ops->txfree_ring_setup(_dev, _regs)
#define mtk_wed_device_reg_read(_dev, _reg) \
(_dev)->ops->reg_read(_dev, _reg)
#define mtk_wed_device_reg_write(_dev, _reg, _val) \
(_dev)->ops->reg_write(_dev, _reg, _val)
#define mtk_wed_device_irq_get(_dev, _mask) \
(_dev)->ops->irq_get(_dev, _mask)
#define mtk_wed_device_irq_set_mask(_dev, _mask) \
(_dev)->ops->irq_set_mask(_dev, _mask)
#else
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
#endif
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