diff options
Diffstat (limited to 'sys/dev/e1000/e1000_osdep.h')
| -rw-r--r-- | sys/dev/e1000/e1000_osdep.h | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/sys/dev/e1000/e1000_osdep.h b/sys/dev/e1000/e1000_osdep.h index 893979025f01..ba1c8a16fad1 100644 --- a/sys/dev/e1000/e1000_osdep.h +++ b/sys/dev/e1000/e1000_osdep.h @@ -152,6 +152,9 @@ struct e1000_osdep { bus_space_tag_t mem_bus_space_tag; bus_space_handle_t mem_bus_space_handle; +#ifdef INVARIANTS + bus_size_t mem_bus_space_size; +#endif bus_space_tag_t io_bus_space_tag; bus_space_handle_t io_bus_space_handle; bus_space_tag_t flash_bus_space_tag; @@ -175,27 +178,44 @@ struct e1000_osdep bus_space_write_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \ ((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, offset, value) +static __inline uint32_t +e1000_rd32(struct e1000_osdep *osdep, uint32_t reg) +{ + + KASSERT(reg < osdep->mem_bus_space_size, + ("e1000: register offset %#jx too large (max is %#jx)", + (uintmax_t)reg, (uintmax_t)osdep->mem_bus_space_size)); + + return (bus_space_read_4(osdep->mem_bus_space_tag, + osdep->mem_bus_space_handle, reg)); +} + + +static __inline void +e1000_wr32(struct e1000_osdep *osdep, uint32_t reg, uint32_t value) +{ + + KASSERT(reg < osdep->mem_bus_space_size, + ("e1000: register offset %#jx too large (max is %#jx)", + (uintmax_t)reg, (uintmax_t)osdep->mem_bus_space_size)); + + bus_space_write_4(osdep->mem_bus_space_tag, + osdep->mem_bus_space_handle, reg, value); +} + /* Register READ/WRITE macros */ -#define E1000_READ_REG(hw, reg) \ - bus_space_read_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \ - ((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \ - E1000_REGISTER(hw, reg)) +#define E1000_READ_REG(hw, reg) \ + e1000_rd32((hw)->back, E1000_REGISTER(hw, reg)) #define E1000_WRITE_REG(hw, reg, value) \ - bus_space_write_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \ - ((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \ - E1000_REGISTER(hw, reg), value) + e1000_wr32((hw)->back, E1000_REGISTER(hw, reg), value) #define E1000_READ_REG_ARRAY(hw, reg, index) \ - bus_space_read_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \ - ((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \ - E1000_REGISTER(hw, reg) + ((index)<< 2)) + e1000_rd32((hw)->back, E1000_REGISTER(hw, reg) + ((index) << 2)) #define E1000_WRITE_REG_ARRAY(hw, reg, index, value) \ - bus_space_write_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \ - ((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \ - E1000_REGISTER(hw, reg) + ((index)<< 2), value) + e1000_wr32((hw)->back, E1000_REGISTER(hw, reg) + ((index) << 2), value) #define E1000_READ_REG_ARRAY_DWORD E1000_READ_REG_ARRAY #define E1000_WRITE_REG_ARRAY_DWORD E1000_WRITE_REG_ARRAY |