diff options
Diffstat (limited to 'bsd_eth_drivers/if_em/e1000_osdep.h')
| -rw-r--r-- | bsd_eth_drivers/if_em/e1000_osdep.h | 227 |
1 files changed, 128 insertions, 99 deletions
diff --git a/bsd_eth_drivers/if_em/e1000_osdep.h b/bsd_eth_drivers/if_em/e1000_osdep.h index b5aa603..96a7d84 100644 --- a/bsd_eth_drivers/if_em/e1000_osdep.h +++ b/bsd_eth_drivers/if_em/e1000_osdep.h @@ -37,9 +37,16 @@ POSSIBILITY OF SUCH DAMAGE. #define _FREEBSD_OS_H_ #include <rtems.h> -#define _KERNEL -#include <rtems/rtems_bsdnet_internal.h> #include <bsp.h> +#include <rtems/pci.h> +#include <vm/vm.h> /* for non-_KERNEL boolean_t :-( */ + +#ifdef _KERNEL +#ifndef __INSIDE_RTEMS_BSD_TCPIP_STACK__ +#define __INSIDE_RTEMS_BSD_TCPIP_STACK__ +#endif +#include <rtems/rtems_bsdnet.h> +#include <rtems/rtems_bsdnet_internal.h> #include <sys/types.h> #include <sys/param.h> @@ -50,7 +57,6 @@ POSSIBILITY OF SUCH DAMAGE. #include <sys/malloc.h> #include <sys/kernel.h> #include <sys/bus.h> -#include <rtems/pci.h> #define ASSERT(x) if(!(x)) panic("EM: x") @@ -69,13 +75,30 @@ POSSIBILITY OF SUCH DAMAGE. #define DEBUGOUT3(S,A,B,C) #define DEBUGOUT7(S,A,B,C,D,E,F,G) +#include <devicet.h> + +struct e1000_osdep +{ + uint32_t mem_bus_space_handle; + uint32_t io_bus_space_handle; + uint32_t flash_bus_space_handle; + /* these are currently unused; present for freebsd compatibility only */ + uint32_t mem_bus_space_tag; + uint32_t io_bus_space_tag; + uint32_t flash_bus_space_tag; + device_t dev; +}; + #define STATIC static +#endif + #ifndef FALSE #define FALSE 0 #endif #ifndef TRUE #define TRUE 1 #endif + #define CMD_MEM_WRT_INVALIDATE 0x0010 /* BIT_4 */ #define PCI_COMMAND_REGISTER PCIR_COMMAND @@ -92,90 +115,71 @@ typedef int32_t s32; typedef int16_t s16; typedef int8_t s8 ; -#include <devicet.h> +typedef volatile uint32_t __uint32_va_t __attribute__((may_alias)); +typedef volatile uint16_t __uint16_va_t __attribute__((may_alias)); -struct e1000_osdep -{ - uint32_t mem_bus_space_handle; - uint32_t io_bus_space_handle; - uint32_t flash_bus_space_handle; - /* these are currently unused; present for freebsd compatibility only */ - uint32_t mem_bus_space_tag; - uint32_t io_bus_space_tag; - uint32_t flash_bus_space_tag; - device_t dev; -}; +#ifdef NO_82542_SUPPORT +#define E1000_REGISTER(hw, reg) reg +#else +#define E1000_REGISTER(hw, reg) (((hw)->mac.type >= e1000_82543) \ + ? reg : e1000_translate_register_82542(reg)) +#endif -typedef volatile uint32_t __attribute__((may_alias)) *__uint32_a_p_t; -typedef volatile uint16_t __attribute__((may_alias)) *__uint16_a_p_t; -typedef volatile uint8_t __attribute__((may_alias)) * __uint8_a_p_t; +#define E1000_WRITE_FLUSH(a) E1000_READ_REG(a, E1000_STATUS) +/* Provide our own I/O so that the low-level driver API can + * be used independently from the BSD stuff. + * This is useful for people who want to use an e1000 adapter + * for special ethernet links that do not use BSD TCP/IP. + */ #ifdef __PPC__ -#include <libcpu/io.h> -static inline uint8_t __in_8(uint32_t base, uint32_t offset) -{ -__uint8_a_p_t a = (__uint8_a_p_t)(base+offset); -uint8_t rval; - __asm__ __volatile__( - "sync;\n" - "lbz%U1%X1 %0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (rval) : "m"(*a)); - return rval; -} -static inline void __out_8(uint32_t base, uint32_t offset, uint8_t val) -{ -__uint8_a_p_t a = (__uint8_a_p_t)(base+offset); - __asm__ __volatile__( - "stb%U0%X0 %1,%0; eieio" : "=m" (*a) : "r"(val) - ); -} +#include <libcpu/io.h> -static inline uint16_t __in_le16(uint32_t base, uint32_t offset) +static inline uint16_t __in_le16(uint8_t *base, uint32_t offset) { -__uint16_a_p_t a = (__uint16_a_p_t)(base+offset); uint16_t rval; - __asm__ __volatile__( - "sync;\n" - "lhbrx %0,0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (rval) : "r"(a), "m"(*a)); - return rval; + __asm__ __volatile__( + "lhbrx %0,%2,%1; eieio\n" + : "=r" (rval) + : "r"(base), "b"(offset), "m"(*(__uint16_va_t*)(base + offset)) + ); + return rval; } -static inline void __out_le16(uint32_t base, uint32_t offset, uint16_t val) +static inline void __out_le16(uint8_t *base, uint32_t offset, uint16_t val) { -__uint16_a_p_t a = (__uint16_a_p_t)(base+offset); - __asm__ __volatile__( - "sync; sthbrx %1,0,%2" : "=m" (*a) : "r"(val), "r"(a) - ); + __asm__ __volatile__( + "sthbrx %1,%3,%2; eieio" + : "=o"(*(__uint16_va_t*)(base+offset)) + : "r"(val), "r"(base), "b"(offset) + ); } -static inline uint32_t __in_le32(uint32_t base, uint32_t offset) +static inline uint32_t __in_le32(uint8_t *base, uint32_t offset) { -__uint32_a_p_t a = (__uint32_a_p_t)(base+offset); uint32_t rval; - __asm__ __volatile__( - "sync;\n" - "lwbrx %0,0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (rval) : "r"(a), "m"(*a)); - return rval; + __asm__ __volatile__( + "lwbrx %0,%2,%1; eieio\n" + : "=r" (rval) + : "r"(base), "b"(offset), "m"(*(__uint32_va_t*)(base + offset)) + ); + return rval; } -static inline void __out_le32(uint32_t base, uint32_t offset, uint32_t val) +static inline void __out_le32(uint8_t *base, uint32_t offset, uint32_t val) { -__uint32_a_p_t a = (__uint32_a_p_t)(base+offset); - __asm__ __volatile__( - "sync; stwbrx %1,0,%2" : "=m" (*a) : "r"(val), "r"(a) - ); + __asm__ __volatile__( + "stwbrx %1,%3,%2; eieio" + : "=o"(*(__uint32_va_t*)(base+offset)) + : "r"(val), "r"(base), "b"(offset) + ); } #ifdef _IO_BASE -static inline void __outport_dword(uint32_t base, uint32_t off, uint32_t val) +static inline void __outport_dword(unsigned long base, uint32_t off, uint32_t val) { - __out_le32(_IO_BASE+base+off,0,val); + __out_le32((uint8_t*)(_IO_BASE+base), off, val); } #else #error "_IO_BASE needs to be defined by BSP (bsp.h)" @@ -183,60 +187,38 @@ static inline void __outport_dword(uint32_t base, uint32_t off, uint32_t val) #elif defined(__i386__) #include <libcpu/cpu.h> -static inline uint8_t __in_8(uint32_t base, uint32_t offset) -{ -__uint8_a_p_t a = (__uint8_a_p_t)(base+offset); - return *a; -} - -static inline void __out_8(uint32_t base, uint32_t offset, uint8_t val) -{ -__uint8_a_p_t a = (__uint8_a_p_t)(base+offset); - *a = val; -} -static inline uint16_t __in_le16(uint32_t base, uint32_t offset) +static inline uint16_t __in_le16(uint8_t *base, uint32_t offset) { -__uint16_a_p_t a = (__uint16_a_p_t)(base+offset); - return *a; + return *(__uint16_va_t*)(base + offset); } -static inline void __out_le16(uint32_t base, uint32_t offset, uint16_t val) +static inline void __out_le16(uint8_t *base, uint32_t offset, uint16_t val) { -__uint16_a_p_t a = (__uint16_a_p_t)(base+offset); - *a = val; + *(__uint16_va_t*)(base + offset) = val; } -static inline uint32_t __in_le32(uint32_t base, uint32_t offset) +static inline uint32_t __in_le32(uint8_t *base, uint32_t offset) { -__uint32_a_p_t a = (__uint32_a_p_t)(base+offset); - return *a; + return *(__uint32_va_t*)(base + offset); } -static inline void __out_le32(uint32_t base, uint32_t offset, uint32_t val) +static inline void __out_le32(uint8_t *base, uint32_t offset, uint32_t val) { -__uint32_a_p_t a = (__uint32_a_p_t)(base+offset); - *a = val; + *(__uint32_va_t*)(base + offset) = val; } - -static inline void __outport_dword(uint32_t base, uint32_t off, uint32_t val) +static inline void __outport_dword(unsigned long base, uint32_t off, uint32_t val) { i386_outport_long( (base + off), val ); } #else -#error "not ported to this CPU architecture yet" +#warning "not ported to this CPU architecture yet -- using libbsdport I/O" +#define USE_LIBBSDPORT_IO #endif -#ifdef NO_82542_SUPPORT -#define E1000_REGISTER(hw, reg) reg -#else -#define E1000_REGISTER(hw, reg) (((hw)->mac.type >= e1000_82543) \ - ? reg : e1000_translate_register_82542(reg)) -#endif - -#define E1000_WRITE_FLUSH(a) E1000_READ_REG(a, E1000_STATUS) +#ifdef USE_LIBBSDPORT_IO #define USE_EXPLICIT_BUSTAGS @@ -393,5 +375,52 @@ static inline void __outport_dword(uint32_t base, uint32_t off, uint32_t val) ((struct e1000_osdep *)(hw)->back)->flash_bus_space_handle, reg, value) #endif /* USE_EXPLICIT_BUSTAGS */ +#else /* USE_LIBBSDPORT_IO */ + +/* Read from an absolute offset in the adapter's memory space */ +#define E1000_READ_OFFSET(hw, offset) \ + __in_le32((hw)->hw_addr, offset) + +/* Write to an absolute offset in the adapter's memory space */ +#define E1000_WRITE_OFFSET(hw, offset, value) \ + __out_le32((hw)->hw_addr, offset, value) + +/* Register READ/WRITE macros */ + +#define E1000_READ_REG(hw, reg) \ + __in_le32((hw)->hw_addr, E1000_REGISTER(hw, reg)) + +#define E1000_WRITE_REG(hw, reg, value) \ + __out_le32((hw)->hw_addr, E1000_REGISTER(hw, reg), value) + +#define E1000_READ_REG_ARRAY(hw, reg, index) \ + __in_le32((hw)->hw_addr, E1000_REGISTER(hw, reg) + ((index)<< 2)) + +#define E1000_WRITE_REG_ARRAY(hw, reg, index, value) \ + __out_le32((hw)->hw_addr, 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 + +#define E1000_WRITE_REG_IO(hw, reg, value) do { \ + __outport_dword((hw)->io_base, 0, reg); \ + __outport_dword((hw)->io_base, 4, value); \ + } while (0) + +#define E1000_READ_FLASH_REG(hw, reg) \ + __in_le32( (hw)->flash_address, reg ) + +#define E1000_READ_FLASH_REG16(hw, reg) \ + __in_le16( (hw)->flash_address, reg ) + +#define E1000_WRITE_FLASH_REG(hw, reg, value) \ + __out_le32( (hw)->flash_address, reg, value ) + +#define E1000_WRITE_FLASH_REG16(hw, reg, value) \ + __out_le16( (hw)->flash_address, reg, value ) + +#endif /* USE_LIBBSDPORT_IO */ + + #endif /* _FREEBSD_OS_H_ */ |