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-rw-r--r--drivers/net/smc91x.c53
-rw-r--r--drivers/net/smc91x.h474
2 files changed, 307 insertions, 220 deletions
diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 75e9b3b910cc..0e9833adf9fe 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -215,15 +215,12 @@ struct smc_local {
215 215
216 spinlock_t lock; 216 spinlock_t lock;
217 217
218#ifdef SMC_CAN_USE_DATACS
219 u32 __iomem *datacs;
220#endif
221
222#ifdef SMC_USE_PXA_DMA 218#ifdef SMC_USE_PXA_DMA
223 /* DMA needs the physical address of the chip */ 219 /* DMA needs the physical address of the chip */
224 u_long physaddr; 220 u_long physaddr;
225#endif 221#endif
226 void __iomem *base; 222 void __iomem *base;
223 void __iomem *datacs;
227}; 224};
228 225
229#if SMC_DEBUG > 0 226#if SMC_DEBUG > 0
@@ -2104,9 +2101,8 @@ static int smc_enable_device(struct platform_device *pdev)
2104 * Set the appropriate byte/word mode. 2101 * Set the appropriate byte/word mode.
2105 */ 2102 */
2106 ecsr = readb(addr + (ECSR << SMC_IO_SHIFT)) & ~ECSR_IOIS8; 2103 ecsr = readb(addr + (ECSR << SMC_IO_SHIFT)) & ~ECSR_IOIS8;
2107#ifndef SMC_CAN_USE_16BIT 2104 if (!SMC_CAN_USE_16BIT)
2108 ecsr |= ECSR_IOIS8; 2105 ecsr |= ECSR_IOIS8;
2109#endif
2110 writeb(ecsr, addr + (ECSR << SMC_IO_SHIFT)); 2106 writeb(ecsr, addr + (ECSR << SMC_IO_SHIFT));
2111 local_irq_restore(flags); 2107 local_irq_restore(flags);
2112 2108
@@ -2143,40 +2139,39 @@ static void smc_release_attrib(struct platform_device *pdev)
2143 release_mem_region(res->start, ATTRIB_SIZE); 2139 release_mem_region(res->start, ATTRIB_SIZE);
2144} 2140}
2145 2141
2146#ifdef SMC_CAN_USE_DATACS 2142static inline void smc_request_datacs(struct platform_device *pdev, struct net_device *ndev)
2147static void smc_request_datacs(struct platform_device *pdev, struct net_device *ndev)
2148{ 2143{
2149 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-data32"); 2144 if (SMC_CAN_USE_DATACS) {
2150 struct smc_local *lp = netdev_priv(ndev); 2145 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-data32");
2146 struct smc_local *lp = netdev_priv(ndev);
2151 2147
2152 if (!res) 2148 if (!res)
2153 return; 2149 return;
2154 2150
2155 if(!request_mem_region(res->start, SMC_DATA_EXTENT, CARDNAME)) { 2151 if(!request_mem_region(res->start, SMC_DATA_EXTENT, CARDNAME)) {
2156 printk(KERN_INFO "%s: failed to request datacs memory region.\n", CARDNAME); 2152 printk(KERN_INFO "%s: failed to request datacs memory region.\n", CARDNAME);
2157 return; 2153 return;
2158 } 2154 }
2159 2155
2160 lp->datacs = ioremap(res->start, SMC_DATA_EXTENT); 2156 lp->datacs = ioremap(res->start, SMC_DATA_EXTENT);
2157 }
2161} 2158}
2162 2159
2163static void smc_release_datacs(struct platform_device *pdev, struct net_device *ndev) 2160static void smc_release_datacs(struct platform_device *pdev, struct net_device *ndev)
2164{ 2161{
2165 struct smc_local *lp = netdev_priv(ndev); 2162 if (SMC_CAN_USE_DATACS) {
2166 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-data32"); 2163 struct smc_local *lp = netdev_priv(ndev);
2164 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-data32");
2167 2165
2168 if (lp->datacs) 2166 if (lp->datacs)
2169 iounmap(lp->datacs); 2167 iounmap(lp->datacs);
2170 2168
2171 lp->datacs = NULL; 2169 lp->datacs = NULL;
2172 2170
2173 if (res) 2171 if (res)
2174 release_mem_region(res->start, SMC_DATA_EXTENT); 2172 release_mem_region(res->start, SMC_DATA_EXTENT);
2173 }
2175} 2174}
2176#else
2177static void smc_request_datacs(struct platform_device *pdev, struct net_device *ndev) {}
2178static void smc_release_datacs(struct platform_device *pdev, struct net_device *ndev) {}
2179#endif
2180 2175
2181/* 2176/*
2182 * smc_init(void) 2177 * smc_init(void)
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index e0efd1964e72..e1be1af51201 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -275,7 +275,10 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
275#define SMC_insw(a,r,p,l) readsw ((void*) ((a) + (r)), p, l) 275#define SMC_insw(a,r,p,l) readsw ((void*) ((a) + (r)), p, l)
276#define SMC_outw(v,a,r) ({ writew ((v), (a) + (r)); LPD7A40X_IOBARRIER; }) 276#define SMC_outw(v,a,r) ({ writew ((v), (a) + (r)); LPD7A40X_IOBARRIER; })
277 277
278static inline void SMC_outsw (unsigned long a, int r, unsigned char* p, int l) 278#define SMC_outsw LPD7A40X_SMC_outsw
279
280static inline void LPD7A40X_SMC_outsw(unsigned long a, int r,
281 unsigned char* p, int l)
279{ 282{
280 unsigned short* ps = (unsigned short*) p; 283 unsigned short* ps = (unsigned short*) p;
281 while (l-- > 0) { 284 while (l-- > 0) {
@@ -342,10 +345,6 @@ static inline void SMC_outsw (unsigned long a, int r, unsigned char* p, int l)
342 345
343#endif 346#endif
344 347
345#ifndef SMC_IRQ_FLAGS
346#define SMC_IRQ_FLAGS SA_TRIGGER_RISING
347#endif
348
349#ifdef SMC_USE_PXA_DMA 348#ifdef SMC_USE_PXA_DMA
350/* 349/*
351 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is 350 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
@@ -441,10 +440,85 @@ smc_pxa_dma_irq(int dma, void *dummy, struct pt_regs *regs)
441#endif /* SMC_USE_PXA_DMA */ 440#endif /* SMC_USE_PXA_DMA */
442 441
443 442
444/* Because of bank switching, the LAN91x uses only 16 I/O ports */ 443/*
444 * Everything a particular hardware setup needs should have been defined
445 * at this point. Add stubs for the undefined cases, mainly to avoid
446 * compilation warnings since they'll be optimized away, or to prevent buggy
447 * use of them.
448 */
449
450#if ! SMC_CAN_USE_32BIT
451#define SMC_inl(ioaddr, reg) ({ BUG(); 0; })
452#define SMC_outl(x, ioaddr, reg) BUG()
453#define SMC_insl(a, r, p, l) BUG()
454#define SMC_outsl(a, r, p, l) BUG()
455#endif
456
457#if !defined(SMC_insl) || !defined(SMC_outsl)
458#define SMC_insl(a, r, p, l) BUG()
459#define SMC_outsl(a, r, p, l) BUG()
460#endif
461
462#if ! SMC_CAN_USE_16BIT
463
464/*
465 * Any 16-bit access is performed with two 8-bit accesses if the hardware
466 * can't do it directly. Most registers are 16-bit so those are mandatory.
467 */
468#define SMC_outw(x, ioaddr, reg) \
469 do { \
470 unsigned int __val16 = (x); \
471 SMC_outb( __val16, ioaddr, reg ); \
472 SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
473 } while (0)
474#define SMC_inw(ioaddr, reg) \
475 ({ \
476 unsigned int __val16; \
477 __val16 = SMC_inb( ioaddr, reg ); \
478 __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
479 __val16; \
480 })
481
482#define SMC_insw(a, r, p, l) BUG()
483#define SMC_outsw(a, r, p, l) BUG()
484
485#endif
486
487#if !defined(SMC_insw) || !defined(SMC_outsw)
488#define SMC_insw(a, r, p, l) BUG()
489#define SMC_outsw(a, r, p, l) BUG()
490#endif
491
492#if ! SMC_CAN_USE_8BIT
493#define SMC_inb(ioaddr, reg) ({ BUG(); 0; })
494#define SMC_outb(x, ioaddr, reg) BUG()
495#define SMC_insb(a, r, p, l) BUG()
496#define SMC_outsb(a, r, p, l) BUG()
497#endif
498
499#if !defined(SMC_insb) || !defined(SMC_outsb)
500#define SMC_insb(a, r, p, l) BUG()
501#define SMC_outsb(a, r, p, l) BUG()
502#endif
503
504#ifndef SMC_CAN_USE_DATACS
505#define SMC_CAN_USE_DATACS 0
506#endif
507
445#ifndef SMC_IO_SHIFT 508#ifndef SMC_IO_SHIFT
446#define SMC_IO_SHIFT 0 509#define SMC_IO_SHIFT 0
447#endif 510#endif
511
512#ifndef SMC_IRQ_FLAGS
513#define SMC_IRQ_FLAGS SA_TRIGGER_RISING
514#endif
515
516#ifndef SMC_INTERRUPT_PREAMBLE
517#define SMC_INTERRUPT_PREAMBLE
518#endif
519
520
521/* Because of bank switching, the LAN91x uses only 16 I/O ports */
448#define SMC_IO_EXTENT (16 << SMC_IO_SHIFT) 522#define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
449#define SMC_DATA_EXTENT (4) 523#define SMC_DATA_EXTENT (4)
450 524
@@ -817,6 +891,11 @@ static const char * chip_ids[ 16 ] = {
817 * Note: the following macros do *not* select the bank -- this must 891 * Note: the following macros do *not* select the bank -- this must
818 * be done separately as needed in the main code. The SMC_REG() macro 892 * be done separately as needed in the main code. The SMC_REG() macro
819 * only uses the bank argument for debugging purposes (when enabled). 893 * only uses the bank argument for debugging purposes (when enabled).
894 *
895 * Note: despite inline functions being safer, everything leading to this
896 * should preferably be macros to let BUG() display the line number in
897 * the core source code since we're interested in the top call site
898 * not in any inline function location.
820 */ 899 */
821 900
822#if SMC_DEBUG > 0 901#if SMC_DEBUG > 0
@@ -834,62 +913,142 @@ static const char * chip_ids[ 16 ] = {
834#define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT) 913#define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT)
835#endif 914#endif
836 915
837#if SMC_CAN_USE_8BIT 916/*
838#define SMC_GET_PN() SMC_inb( ioaddr, PN_REG ) 917 * Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
839#define SMC_SET_PN(x) SMC_outb( x, ioaddr, PN_REG ) 918 * aligned to a 32 bit boundary. I tell you that does exist!
840#define SMC_GET_AR() SMC_inb( ioaddr, AR_REG ) 919 * Fortunately the affected register accesses can be easily worked around
841#define SMC_GET_TXFIFO() SMC_inb( ioaddr, TXFIFO_REG ) 920 * since we can write zeroes to the preceeding 16 bits without adverse
842#define SMC_GET_RXFIFO() SMC_inb( ioaddr, RXFIFO_REG ) 921 * effects and use a 32-bit access.
843#define SMC_GET_INT() SMC_inb( ioaddr, INT_REG ) 922 *
844#define SMC_ACK_INT(x) SMC_outb( x, ioaddr, INT_REG ) 923 * Enforce it on any 32-bit capable setup for now.
845#define SMC_GET_INT_MASK() SMC_inb( ioaddr, IM_REG ) 924 */
846#define SMC_SET_INT_MASK(x) SMC_outb( x, ioaddr, IM_REG ) 925#define SMC_MUST_ALIGN_WRITE SMC_CAN_USE_32BIT
847#else 926
848#define SMC_GET_PN() (SMC_inw( ioaddr, PN_REG ) & 0xFF) 927#define SMC_GET_PN() \
849#define SMC_SET_PN(x) SMC_outw( x, ioaddr, PN_REG ) 928 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, PN_REG)) \
850#define SMC_GET_AR() (SMC_inw( ioaddr, PN_REG ) >> 8) 929 : (SMC_inw(ioaddr, PN_REG) & 0xFF) )
851#define SMC_GET_TXFIFO() (SMC_inw( ioaddr, TXFIFO_REG ) & 0xFF) 930
852#define SMC_GET_RXFIFO() (SMC_inw( ioaddr, TXFIFO_REG ) >> 8) 931#define SMC_SET_PN(x) \
853#define SMC_GET_INT() (SMC_inw( ioaddr, INT_REG ) & 0xFF) 932 do { \
933 if (SMC_MUST_ALIGN_WRITE) \
934 SMC_outl((x)<<16, ioaddr, SMC_REG(0, 2)); \
935 else if (SMC_CAN_USE_8BIT) \
936 SMC_outb(x, ioaddr, PN_REG); \
937 else \
938 SMC_outw(x, ioaddr, PN_REG); \
939 } while (0)
940
941#define SMC_GET_AR() \
942 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, AR_REG)) \
943 : (SMC_inw(ioaddr, PN_REG) >> 8) )
944
945#define SMC_GET_TXFIFO() \
946 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, TXFIFO_REG)) \
947 : (SMC_inw(ioaddr, TXFIFO_REG) & 0xFF) )
948
949#define SMC_GET_RXFIFO() \
950 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, RXFIFO_REG)) \
951 : (SMC_inw(ioaddr, TXFIFO_REG) >> 8) )
952
953#define SMC_GET_INT() \
954 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, INT_REG)) \
955 : (SMC_inw(ioaddr, INT_REG) & 0xFF) )
956
854#define SMC_ACK_INT(x) \ 957#define SMC_ACK_INT(x) \
855 do { \ 958 do { \
856 unsigned long __flags; \ 959 if (SMC_CAN_USE_8BIT) \
857 int __mask; \ 960 SMC_outb(x, ioaddr, INT_REG); \
858 local_irq_save(__flags); \ 961 else { \
859 __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \ 962 unsigned long __flags; \
860 SMC_outw( __mask | (x), ioaddr, INT_REG ); \ 963 int __mask; \
861 local_irq_restore(__flags); \ 964 local_irq_save(__flags); \
965 __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \
966 SMC_outw( __mask | (x), ioaddr, INT_REG ); \
967 local_irq_restore(__flags); \
968 } \
969 } while (0)
970
971#define SMC_GET_INT_MASK() \
972 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, IM_REG)) \
973 : (SMC_inw( ioaddr, INT_REG ) >> 8) )
974
975#define SMC_SET_INT_MASK(x) \
976 do { \
977 if (SMC_CAN_USE_8BIT) \
978 SMC_outb(x, ioaddr, IM_REG); \
979 else \
980 SMC_outw((x) << 8, ioaddr, INT_REG); \
981 } while (0)
982
983#define SMC_CURRENT_BANK() SMC_inw(ioaddr, BANK_SELECT)
984
985#define SMC_SELECT_BANK(x) \
986 do { \
987 if (SMC_MUST_ALIGN_WRITE) \
988 SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \
989 else \
990 SMC_outw(x, ioaddr, BANK_SELECT); \
991 } while (0)
992
993#define SMC_GET_BASE() SMC_inw(ioaddr, BASE_REG)
994
995#define SMC_SET_BASE(x) SMC_outw(x, ioaddr, BASE_REG)
996
997#define SMC_GET_CONFIG() SMC_inw(ioaddr, CONFIG_REG)
998
999#define SMC_SET_CONFIG(x) SMC_outw(x, ioaddr, CONFIG_REG)
1000
1001#define SMC_GET_COUNTER() SMC_inw(ioaddr, COUNTER_REG)
1002
1003#define SMC_GET_CTL() SMC_inw(ioaddr, CTL_REG)
1004
1005#define SMC_SET_CTL(x) SMC_outw(x, ioaddr, CTL_REG)
1006
1007#define SMC_GET_MII() SMC_inw(ioaddr, MII_REG)
1008
1009#define SMC_SET_MII(x) SMC_outw(x, ioaddr, MII_REG)
1010
1011#define SMC_GET_MIR() SMC_inw(ioaddr, MIR_REG)
1012
1013#define SMC_SET_MIR(x) SMC_outw(x, ioaddr, MIR_REG)
1014
1015#define SMC_GET_MMU_CMD() SMC_inw(ioaddr, MMU_CMD_REG)
1016
1017#define SMC_SET_MMU_CMD(x) SMC_outw(x, ioaddr, MMU_CMD_REG)
1018
1019#define SMC_GET_FIFO() SMC_inw(ioaddr, FIFO_REG)
1020
1021#define SMC_GET_PTR() SMC_inw(ioaddr, PTR_REG)
1022
1023#define SMC_SET_PTR(x) \
1024 do { \
1025 if (SMC_MUST_ALIGN_WRITE) \
1026 SMC_outl((x)<<16, ioaddr, SMC_REG(4, 2)); \
1027 else \
1028 SMC_outw(x, ioaddr, PTR_REG); \
862 } while (0) 1029 } while (0)
863#define SMC_GET_INT_MASK() (SMC_inw( ioaddr, INT_REG ) >> 8)
864#define SMC_SET_INT_MASK(x) SMC_outw( (x) << 8, ioaddr, INT_REG )
865#endif
866 1030
867#define SMC_CURRENT_BANK() SMC_inw( ioaddr, BANK_SELECT ) 1031#define SMC_GET_EPH_STATUS() SMC_inw(ioaddr, EPH_STATUS_REG)
868#define SMC_SELECT_BANK(x) SMC_outw( x, ioaddr, BANK_SELECT ) 1032
869#define SMC_GET_BASE() SMC_inw( ioaddr, BASE_REG ) 1033#define SMC_GET_RCR() SMC_inw(ioaddr, RCR_REG)
870#define SMC_SET_BASE(x) SMC_outw( x, ioaddr, BASE_REG ) 1034
871#define SMC_GET_CONFIG() SMC_inw( ioaddr, CONFIG_REG ) 1035#define SMC_SET_RCR(x) SMC_outw(x, ioaddr, RCR_REG)
872#define SMC_SET_CONFIG(x) SMC_outw( x, ioaddr, CONFIG_REG ) 1036
873#define SMC_GET_COUNTER() SMC_inw( ioaddr, COUNTER_REG ) 1037#define SMC_GET_REV() SMC_inw(ioaddr, REV_REG)
874#define SMC_GET_CTL() SMC_inw( ioaddr, CTL_REG ) 1038
875#define SMC_SET_CTL(x) SMC_outw( x, ioaddr, CTL_REG ) 1039#define SMC_GET_RPC() SMC_inw(ioaddr, RPC_REG)
876#define SMC_GET_MII() SMC_inw( ioaddr, MII_REG ) 1040
877#define SMC_SET_MII(x) SMC_outw( x, ioaddr, MII_REG ) 1041#define SMC_SET_RPC(x) \
878#define SMC_GET_MIR() SMC_inw( ioaddr, MIR_REG ) 1042 do { \
879#define SMC_SET_MIR(x) SMC_outw( x, ioaddr, MIR_REG ) 1043 if (SMC_MUST_ALIGN_WRITE) \
880#define SMC_GET_MMU_CMD() SMC_inw( ioaddr, MMU_CMD_REG ) 1044 SMC_outl((x)<<16, ioaddr, SMC_REG(8, 0)); \
881#define SMC_SET_MMU_CMD(x) SMC_outw( x, ioaddr, MMU_CMD_REG ) 1045 else \
882#define SMC_GET_FIFO() SMC_inw( ioaddr, FIFO_REG ) 1046 SMC_outw(x, ioaddr, RPC_REG); \
883#define SMC_GET_PTR() SMC_inw( ioaddr, PTR_REG ) 1047 } while (0)
884#define SMC_SET_PTR(x) SMC_outw( x, ioaddr, PTR_REG ) 1048
885#define SMC_GET_EPH_STATUS() SMC_inw( ioaddr, EPH_STATUS_REG ) 1049#define SMC_GET_TCR() SMC_inw(ioaddr, TCR_REG)
886#define SMC_GET_RCR() SMC_inw( ioaddr, RCR_REG ) 1050
887#define SMC_SET_RCR(x) SMC_outw( x, ioaddr, RCR_REG ) 1051#define SMC_SET_TCR(x) SMC_outw(x, ioaddr, TCR_REG)
888#define SMC_GET_REV() SMC_inw( ioaddr, REV_REG )
889#define SMC_GET_RPC() SMC_inw( ioaddr, RPC_REG )
890#define SMC_SET_RPC(x) SMC_outw( x, ioaddr, RPC_REG )
891#define SMC_GET_TCR() SMC_inw( ioaddr, TCR_REG )
892#define SMC_SET_TCR(x) SMC_outw( x, ioaddr, TCR_REG )
893 1052
894#ifndef SMC_GET_MAC_ADDR 1053#ifndef SMC_GET_MAC_ADDR
895#define SMC_GET_MAC_ADDR(addr) \ 1054#define SMC_GET_MAC_ADDR(addr) \
@@ -920,151 +1079,84 @@ static const char * chip_ids[ 16 ] = {
920 SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \ 1079 SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \
921 } while (0) 1080 } while (0)
922 1081
923#if SMC_CAN_USE_32BIT
924/*
925 * Some setups just can't write 8 or 16 bits reliably when not aligned
926 * to a 32 bit boundary. I tell you that exists!
927 * We re-do the ones here that can be easily worked around if they can have
928 * their low parts written to 0 without adverse effects.
929 */
930#undef SMC_SELECT_BANK
931#define SMC_SELECT_BANK(x) SMC_outl( (x)<<16, ioaddr, 12<<SMC_IO_SHIFT )
932#undef SMC_SET_RPC
933#define SMC_SET_RPC(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(8, 0) )
934#undef SMC_SET_PN
935#define SMC_SET_PN(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(0, 2) )
936#undef SMC_SET_PTR
937#define SMC_SET_PTR(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(4, 2) )
938#endif
939
940#if SMC_CAN_USE_32BIT
941#define SMC_PUT_PKT_HDR(status, length) \
942 SMC_outl( (status) | (length) << 16, ioaddr, DATA_REG )
943#define SMC_GET_PKT_HDR(status, length) \
944 do { \
945 unsigned int __val = SMC_inl( ioaddr, DATA_REG ); \
946 (status) = __val & 0xffff; \
947 (length) = __val >> 16; \
948 } while (0)
949#else
950#define SMC_PUT_PKT_HDR(status, length) \ 1082#define SMC_PUT_PKT_HDR(status, length) \
951 do { \ 1083 do { \
952 SMC_outw( status, ioaddr, DATA_REG ); \ 1084 if (SMC_CAN_USE_32BIT) \
953 SMC_outw( length, ioaddr, DATA_REG ); \ 1085 SMC_outl((status) | (length)<<16, ioaddr, DATA_REG); \
954 } while (0) 1086 else { \
955#define SMC_GET_PKT_HDR(status, length) \ 1087 SMC_outw(status, ioaddr, DATA_REG); \
956 do { \ 1088 SMC_outw(length, ioaddr, DATA_REG); \
957 (status) = SMC_inw( ioaddr, DATA_REG ); \ 1089 } \
958 (length) = SMC_inw( ioaddr, DATA_REG ); \
959 } while (0) 1090 } while (0)
960#endif
961 1091
962#if SMC_CAN_USE_32BIT 1092#define SMC_GET_PKT_HDR(status, length) \
963#define _SMC_PUSH_DATA(p, l) \
964 do { \ 1093 do { \
965 char *__ptr = (p); \ 1094 if (SMC_CAN_USE_32BIT) { \
966 int __len = (l); \ 1095 unsigned int __val = SMC_inl(ioaddr, DATA_REG); \
967 if (__len >= 2 && (unsigned long)__ptr & 2) { \ 1096 (status) = __val & 0xffff; \
968 __len -= 2; \ 1097 (length) = __val >> 16; \
969 SMC_outw( *(u16 *)__ptr, ioaddr, DATA_REG ); \ 1098 } else { \
970 __ptr += 2; \ 1099 (status) = SMC_inw(ioaddr, DATA_REG); \
971 } \ 1100 (length) = SMC_inw(ioaddr, DATA_REG); \
972 SMC_outsl( ioaddr, DATA_REG, __ptr, __len >> 2); \
973 if (__len & 2) { \
974 __ptr += (__len & ~3); \
975 SMC_outw( *((u16 *)__ptr), ioaddr, DATA_REG ); \
976 } \ 1101 } \
977 } while (0) 1102 } while (0)
978#define _SMC_PULL_DATA(p, l) \
979 do { \
980 char *__ptr = (p); \
981 int __len = (l); \
982 if ((unsigned long)__ptr & 2) { \
983 /* \
984 * We want 32bit alignment here. \
985 * Since some buses perform a full 32bit \
986 * fetch even for 16bit data we can't use \
987 * SMC_inw() here. Back both source (on chip \
988 * and destination) pointers of 2 bytes. \
989 */ \
990 __ptr -= 2; \
991 __len += 2; \
992 SMC_SET_PTR( 2|PTR_READ|PTR_RCV|PTR_AUTOINC ); \
993 } \
994 __len += 2; \
995 SMC_insl( ioaddr, DATA_REG, __ptr, __len >> 2); \
996 } while (0)
997#elif SMC_CAN_USE_16BIT
998#define _SMC_PUSH_DATA(p, l) SMC_outsw( ioaddr, DATA_REG, p, (l) >> 1 )
999#define _SMC_PULL_DATA(p, l) SMC_insw ( ioaddr, DATA_REG, p, (l) >> 1 )
1000#elif SMC_CAN_USE_8BIT
1001#define _SMC_PUSH_DATA(p, l) SMC_outsb( ioaddr, DATA_REG, p, l )
1002#define _SMC_PULL_DATA(p, l) SMC_insb ( ioaddr, DATA_REG, p, l )
1003#endif
1004 1103
1005#if ! SMC_CAN_USE_16BIT 1104#define SMC_PUSH_DATA(p, l) \
1006#define SMC_outw(x, ioaddr, reg) \
1007 do { \ 1105 do { \
1008 unsigned int __val16 = (x); \ 1106 if (SMC_CAN_USE_32BIT) { \
1009 SMC_outb( __val16, ioaddr, reg ); \ 1107 void *__ptr = (p); \
1010 SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\ 1108 int __len = (l); \
1109 void *__ioaddr = ioaddr; \
1110 if (__len >= 2 && (unsigned long)__ptr & 2) { \
1111 __len -= 2; \
1112 SMC_outw(*(u16 *)__ptr, ioaddr, DATA_REG); \
1113 __ptr += 2; \
1114 } \
1115 if (SMC_CAN_USE_DATACS && lp->datacs) \
1116 __ioaddr = lp->datacs; \
1117 SMC_outsl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1118 if (__len & 2) { \
1119 __ptr += (__len & ~3); \
1120 SMC_outw(*((u16 *)__ptr), ioaddr, DATA_REG); \
1121 } \
1122 } else if (SMC_CAN_USE_16BIT) \
1123 SMC_outsw(ioaddr, DATA_REG, p, (l) >> 1); \
1124 else if (SMC_CAN_USE_8BIT) \
1125 SMC_outsb(ioaddr, DATA_REG, p, l); \
1011 } while (0) 1126 } while (0)
1012#define SMC_inw(ioaddr, reg) \
1013 ({ \
1014 unsigned int __val16; \
1015 __val16 = SMC_inb( ioaddr, reg ); \
1016 __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
1017 __val16; \
1018 })
1019#endif
1020
1021#ifdef SMC_CAN_USE_DATACS
1022#define SMC_PUSH_DATA(p, l) \
1023 if ( lp->datacs ) { \
1024 unsigned char *__ptr = (p); \
1025 int __len = (l); \
1026 if (__len >= 2 && (unsigned long)__ptr & 2) { \
1027 __len -= 2; \
1028 SMC_outw( *((u16 *)__ptr), ioaddr, DATA_REG ); \
1029 __ptr += 2; \
1030 } \
1031 outsl(lp->datacs, __ptr, __len >> 2); \
1032 if (__len & 2) { \
1033 __ptr += (__len & ~3); \
1034 SMC_outw( *((u16 *)__ptr), ioaddr, DATA_REG ); \
1035 } \
1036 } else { \
1037 _SMC_PUSH_DATA(p, l); \
1038 }
1039 1127
1040#define SMC_PULL_DATA(p, l) \ 1128#define SMC_PULL_DATA(p, l) \
1041 if ( lp->datacs ) { \ 1129 do { \
1042 unsigned char *__ptr = (p); \ 1130 if (SMC_CAN_USE_32BIT) { \
1043 int __len = (l); \ 1131 void *__ptr = (p); \
1044 if ((unsigned long)__ptr & 2) { \ 1132 int __len = (l); \
1045 /* \ 1133 void *__ioaddr = ioaddr; \
1046 * We want 32bit alignment here. \ 1134 if ((unsigned long)__ptr & 2) { \
1047 * Since some buses perform a full 32bit \ 1135 /* \
1048 * fetch even for 16bit data we can't use \ 1136 * We want 32bit alignment here. \
1049 * SMC_inw() here. Back both source (on chip \ 1137 * Since some buses perform a full \
1050 * and destination) pointers of 2 bytes. \ 1138 * 32bit fetch even for 16bit data \
1051 */ \ 1139 * we can't use SMC_inw() here. \
1052 __ptr -= 2; \ 1140 * Back both source (on-chip) and \
1141 * destination pointers of 2 bytes. \
1142 * This is possible since the call to \
1143 * SMC_GET_PKT_HDR() already advanced \
1144 * the source pointer of 4 bytes, and \
1145 * the skb_reserve(skb, 2) advanced \
1146 * the destination pointer of 2 bytes. \
1147 */ \
1148 __ptr -= 2; \
1149 __len += 2; \
1150 SMC_SET_PTR(2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
1151 } \
1152 if (SMC_CAN_USE_DATACS && lp->datacs) \
1153 __ioaddr = lp->datacs; \
1053 __len += 2; \ 1154 __len += 2; \
1054 SMC_SET_PTR( 2|PTR_READ|PTR_RCV|PTR_AUTOINC ); \ 1155 SMC_insl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1055 } \ 1156 } else if (SMC_CAN_USE_16BIT) \
1056 __len += 2; \ 1157 SMC_insw(ioaddr, DATA_REG, p, (l) >> 1); \
1057 insl( lp->datacs, __ptr, __len >> 2); \ 1158 else if (SMC_CAN_USE_8BIT) \
1058 } else { \ 1159 SMC_insb(ioaddr, DATA_REG, p, l); \
1059 _SMC_PULL_DATA(p, l); \ 1160 } while (0)
1060 }
1061#else
1062#define SMC_PUSH_DATA(p, l) _SMC_PUSH_DATA(p, l)
1063#define SMC_PULL_DATA(p, l) _SMC_PULL_DATA(p, l)
1064#endif
1065
1066#if !defined (SMC_INTERRUPT_PREAMBLE)
1067# define SMC_INTERRUPT_PREAMBLE
1068#endif
1069 1161
1070#endif /* _SMC91X_H_ */ 1162#endif /* _SMC91X_H_ */
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