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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 | /************************************************** * * * Definition of D-Link Ethernet Pocket adapter * * * **************************************************/ /* * D-Link Ethernet pocket adapter ports */ /* * OK, so I'm cheating, but there are an awful lot of * reads and writes in order to get anything in and out * of the DE-600 with 4 bits at a time in the parallel port, * so every saved instruction really helps :-) */ #ifndef DE600_IO #define DE600_IO 0x378 #endif #define DATA_PORT (DE600_IO) #define STATUS_PORT (DE600_IO + 1) #define COMMAND_PORT (DE600_IO + 2) #ifndef DE600_IRQ #define DE600_IRQ 7 #endif /* * It really should look like this, and autoprobing as well... * #define DATA_PORT (dev->base_addr + 0) #define STATUS_PORT (dev->base_addr + 1) #define COMMAND_PORT (dev->base_addr + 2) #define DE600_IRQ dev->irq */ /* * D-Link COMMAND_PORT commands */ #define SELECT_NIC 0x04 /* select Network Interface Card */ #define SELECT_PRN 0x1c /* select Printer */ #define NML_PRN 0xec /* normal Printer situation */ #define IRQEN 0x10 /* enable IRQ line */ /* * D-Link STATUS_PORT */ #define RX_BUSY 0x80 #define RX_GOOD 0x40 #define TX_FAILED16 0x10 #define TX_BUSY 0x08 /* * D-Link DATA_PORT commands * command in low 4 bits * data in high 4 bits * select current data nibble with HI_NIBBLE bit */ #define WRITE_DATA 0x00 /* write memory */ #define READ_DATA 0x01 /* read memory */ #define STATUS 0x02 /* read status register */ #define COMMAND 0x03 /* write command register (see COMMAND below) */ #define NULL_COMMAND 0x04 /* null command */ #define RX_LEN 0x05 /* read received packet length */ #define TX_ADDR 0x06 /* set adapter transmit memory address */ #define RW_ADDR 0x07 /* set adapter read/write memory address */ #define HI_NIBBLE 0x08 /* read/write the high nibble of data, or-ed with rest of command */ /* * command register, accessed through DATA_PORT with low bits = COMMAND */ #define RX_ALL 0x01 /* PROMISCUOUS */ #define RX_BP 0x02 /* default: BROADCAST & PHYSICAL ADDRESS */ #define RX_MBP 0x03 /* MULTICAST, BROADCAST & PHYSICAL ADDRESS */ #define TX_ENABLE 0x04 /* bit 2 */ #define RX_ENABLE 0x08 /* bit 3 */ #define RESET 0x80 /* set bit 7 high */ #define STOP_RESET 0x00 /* set bit 7 low */ /* * data to command register * (high 4 bits in write to DATA_PORT) */ #define RX_PAGE2_SELECT 0x10 /* bit 4, only 2 pages to select */ #define RX_BASE_PAGE 0x20 /* bit 5, always set when specifying RX_ADDR */ #define FLIP_IRQ 0x40 /* bit 6 */ /* * D-Link adapter internal memory: * * 0-2K 1:st transmit page (send from pointer up to 2K) * 2-4K 2:nd transmit page (send from pointer up to 4K) * * 4-6K 1:st receive page (data from 4K upwards) * 6-8K 2:nd receive page (data from 6K upwards) * * 8K+ Adapter ROM (contains magic code and last 3 bytes of Ethernet address) */ #define MEM_2K 0x0800 /* 2048 */ #define MEM_4K 0x1000 /* 4096 */ #define MEM_6K 0x1800 /* 6144 */ #define NODE_ADDRESS 0x2000 /* 8192 */ #define RUNT 60 /* Too small Ethernet packet */ /************************************************** * * * End of definition * * * **************************************************/ /* * Index to functions, as function prototypes. */ /* Routines used internally. (See "convenience macros") */ static u8 de600_read_status(struct net_device *dev); static u8 de600_read_byte(unsigned char type, struct net_device *dev); /* Put in the device structure. */ static int de600_open(struct net_device *dev); static int de600_close(struct net_device *dev); static struct net_device_stats *get_stats(struct net_device *dev); static int de600_start_xmit(struct sk_buff *skb, struct net_device *dev); /* Dispatch from interrupts. */ static irqreturn_t de600_interrupt(int irq, void *dev_id, struct pt_regs *regs); static int de600_tx_intr(struct net_device *dev, int irq_status); static void de600_rx_intr(struct net_device *dev); /* Initialization */ static void trigger_interrupt(struct net_device *dev); static int adapter_init(struct net_device *dev); /* * Convenience macros/functions for D-Link adapter */ #define select_prn() outb_p(SELECT_PRN, COMMAND_PORT); DE600_SLOW_DOWN #define select_nic() outb_p(SELECT_NIC, COMMAND_PORT); DE600_SLOW_DOWN /* Thanks for hints from Mark Burton <markb@ordern.demon.co.uk> */ #define de600_put_byte(data) ( \ outb_p(((data) << 4) | WRITE_DATA , DATA_PORT), \ outb_p(((data) & 0xf0) | WRITE_DATA | HI_NIBBLE, DATA_PORT)) /* * The first two outb_p()'s below could perhaps be deleted if there * would be more delay in the last two. Not certain about it yet... */ #define de600_put_command(cmd) ( \ outb_p(( rx_page << 4) | COMMAND , DATA_PORT), \ outb_p(( rx_page & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT), \ outb_p(((rx_page | cmd) << 4) | COMMAND , DATA_PORT), \ outb_p(((rx_page | cmd) & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT)) #define de600_setup_address(addr,type) ( \ outb_p((((addr) << 4) & 0xf0) | type , DATA_PORT), \ outb_p(( (addr) & 0xf0) | type | HI_NIBBLE, DATA_PORT), \ outb_p((((addr) >> 4) & 0xf0) | type , DATA_PORT), \ outb_p((((addr) >> 8) & 0xf0) | type | HI_NIBBLE, DATA_PORT)) #define rx_page_adr() ((rx_page & RX_PAGE2_SELECT)?(MEM_6K):(MEM_4K)) /* Flip bit, only 2 pages */ #define next_rx_page() (rx_page ^= RX_PAGE2_SELECT) #define tx_page_adr(a) (((a) + 1) * MEM_2K) |