| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #ifndef PCI_OPS_H |
| #define PCI_OPS_H |
| |
| #include <stdint.h> |
| #include <device/device.h> |
| #include <device/pci_type.h> |
| #include <arch/pci_ops.h> |
| |
| void __noreturn pcidev_die(void); |
| |
| static __always_inline pci_devfn_t pcidev_bdf(const struct device *dev) |
| { |
| return (dev->path.pci.devfn << 12) | (dev->bus->secondary << 20); |
| } |
| |
| static __always_inline pci_devfn_t pcidev_assert(const struct device *dev) |
| { |
| if (!dev) |
| pcidev_die(); |
| return pcidev_bdf(dev); |
| } |
| |
| #if defined(__SIMPLE_DEVICE__) |
| #define ENV_PCI_SIMPLE_DEVICE 1 |
| #else |
| #define ENV_PCI_SIMPLE_DEVICE 0 |
| #endif |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| |
| /* Avoid name collisions as different stages have different signature |
| * for these functions. The _s_ stands for simple, fundamental IO or |
| * MMIO variant. |
| */ |
| #define pci_read_config8 pci_s_read_config8 |
| #define pci_read_config16 pci_s_read_config16 |
| #define pci_read_config32 pci_s_read_config32 |
| #define pci_write_config8 pci_s_write_config8 |
| #define pci_write_config16 pci_s_write_config16 |
| #define pci_write_config32 pci_s_write_config32 |
| #else |
| |
| static __always_inline |
| u8 pci_read_config8(const struct device *dev, u16 reg) |
| { |
| return pci_s_read_config8(PCI_BDF(dev), reg); |
| } |
| |
| static __always_inline |
| u16 pci_read_config16(const struct device *dev, u16 reg) |
| { |
| return pci_s_read_config16(PCI_BDF(dev), reg); |
| } |
| |
| static __always_inline |
| u32 pci_read_config32(const struct device *dev, u16 reg) |
| { |
| return pci_s_read_config32(PCI_BDF(dev), reg); |
| } |
| |
| static __always_inline |
| void pci_write_config8(const struct device *dev, u16 reg, u8 val) |
| { |
| pci_s_write_config8(PCI_BDF(dev), reg, val); |
| } |
| |
| static __always_inline |
| void pci_write_config16(const struct device *dev, u16 reg, u16 val) |
| { |
| pci_s_write_config16(PCI_BDF(dev), reg, val); |
| } |
| |
| static __always_inline |
| void pci_write_config32(const struct device *dev, u16 reg, u32 val) |
| { |
| pci_s_write_config32(PCI_BDF(dev), reg, val); |
| } |
| |
| #endif |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_update_config8(pci_devfn_t dev, u16 reg, u8 mask, u8 or) |
| #else |
| static __always_inline |
| void pci_update_config8(const struct device *dev, u16 reg, u8 mask, u8 or) |
| #endif |
| { |
| u8 reg8; |
| |
| reg8 = pci_read_config8(dev, reg); |
| reg8 &= mask; |
| reg8 |= or; |
| pci_write_config8(dev, reg, reg8); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_update_config16(pci_devfn_t dev, u16 reg, u16 mask, u16 or) |
| #else |
| static __always_inline |
| void pci_update_config16(const struct device *dev, u16 reg, u16 mask, u16 or) |
| #endif |
| { |
| u16 reg16; |
| |
| reg16 = pci_read_config16(dev, reg); |
| reg16 &= mask; |
| reg16 |= or; |
| pci_write_config16(dev, reg, reg16); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_update_config32(pci_devfn_t dev, u16 reg, u32 mask, u32 or) |
| #else |
| static __always_inline |
| void pci_update_config32(const struct device *dev, u16 reg, u32 mask, u32 or) |
| #endif |
| { |
| u32 reg32; |
| |
| reg32 = pci_read_config32(dev, reg); |
| reg32 &= mask; |
| reg32 |= or; |
| pci_write_config32(dev, reg, reg32); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_and_config8(pci_devfn_t dev, u16 reg, u8 andmask) |
| #else |
| static __always_inline |
| void pci_and_config8(const struct device *dev, u16 reg, u8 andmask) |
| #endif |
| { |
| pci_update_config8(dev, reg, andmask, 0); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_and_config16(pci_devfn_t dev, u16 reg, u16 andmask) |
| #else |
| static __always_inline |
| void pci_and_config16(const struct device *dev, u16 reg, u16 andmask) |
| #endif |
| { |
| pci_update_config16(dev, reg, andmask, 0); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_and_config32(pci_devfn_t dev, u16 reg, u32 andmask) |
| #else |
| static __always_inline |
| void pci_and_config32(const struct device *dev, u16 reg, u32 andmask) |
| #endif |
| { |
| pci_update_config32(dev, reg, andmask, 0); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_or_config8(pci_devfn_t dev, u16 reg, u8 ormask) |
| #else |
| static __always_inline |
| void pci_or_config8(const struct device *dev, u16 reg, u8 ormask) |
| #endif |
| { |
| pci_update_config8(dev, reg, 0xff, ormask); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_or_config16(pci_devfn_t dev, u16 reg, u16 ormask) |
| #else |
| static __always_inline |
| void pci_or_config16(const struct device *dev, u16 reg, u16 ormask) |
| #endif |
| { |
| pci_update_config16(dev, reg, 0xffff, ormask); |
| } |
| |
| #if ENV_PCI_SIMPLE_DEVICE |
| static __always_inline |
| void pci_or_config32(pci_devfn_t dev, u16 reg, u32 ormask) |
| #else |
| static __always_inline |
| void pci_or_config32(const struct device *dev, u16 reg, u32 ormask) |
| #endif |
| { |
| pci_update_config32(dev, reg, 0xffffffff, ormask); |
| } |
| |
| u16 pci_s_find_next_capability(pci_devfn_t dev, u16 cap, u16 last); |
| u16 pci_s_find_capability(pci_devfn_t dev, u16 cap); |
| |
| static __always_inline |
| u16 pci_find_next_capability(const struct device *dev, u16 cap, u16 last) |
| { |
| return pci_s_find_next_capability(PCI_BDF(dev), cap, last); |
| } |
| |
| static __always_inline |
| u16 pci_find_capability(const struct device *dev, u16 cap) |
| { |
| return pci_s_find_capability(PCI_BDF(dev), cap); |
| } |
| |
| /* |
| * Determine if the given PCI device is the source of wake from sleep by checking PME_STATUS and |
| * PME_ENABLE bits in PM control and status register. |
| * |
| * Returns true if PCI device is wake source, false otherwise. |
| */ |
| bool pci_dev_is_wake_source(const struct device *dev); |
| |
| #endif /* PCI_OPS_H */ |