Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 259 insertions, 0 deletions

diff --git a/drivers/net/atp.h b/drivers/net/atp.h
new file mode 100644
index 000000000000..0edc642c2c2f
--- /dev/null
+++ b/drivers/net/atp.h
@@ -0,0 +1,259 @@
+/* Linux header file for the ATP pocket ethernet adapter. */
+/* v1.09 8/9/2000 becker@scyld.com. */
+
+#include <linux/if_ether.h>
+#include <linux/types.h>
+
+/* The header prepended to received packets. */
+struct rx_header {
+    ushort pad;                 /* Pad. */
+    ushort rx_count;
+    ushort rx_status;           /* Unknown bit assignments :-<.  */
+    ushort cur_addr;            /* Apparently the current buffer address(?) */
+};
+
+#define PAR_DATA        0
+#define PAR_STATUS      1
+#define PAR_CONTROL 2
+
+enum chip_type { RTL8002, RTL8012 };
+
+#define Ctrl_LNibRead   0x08    /* LP_PSELECP */
+#define Ctrl_HNibRead   0
+#define Ctrl_LNibWrite  0x08    /* LP_PSELECP */
+#define Ctrl_HNibWrite  0
+#define Ctrl_SelData    0x04    /* LP_PINITP */
+#define Ctrl_IRQEN      0x10    /* LP_PINTEN */
+
+#define EOW     0xE0
+#define EOC     0xE0
+#define WrAddr  0x40    /* Set address of EPLC read, write register. */
+#define RdAddr  0xC0
+#define HNib    0x10
+
+enum page0_regs
+{
+    /* The first six registers hold the ethernet physical station address. */
+    PAR0 = 0, PAR1 = 1, PAR2 = 2, PAR3 = 3, PAR4 = 4, PAR5 = 5,
+    TxCNT0 = 6, TxCNT1 = 7,             /* The transmit byte count. */
+    TxSTAT = 8, RxSTAT = 9,             /* Tx and Rx status. */
+    ISR = 10, IMR = 11,                 /* Interrupt status and mask. */
+    CMR1 = 12,                          /* Command register 1. */
+    CMR2 = 13,                          /* Command register 2. */
+    MODSEL = 14,                        /* Mode select register. */
+    MAR = 14,                           /* Memory address register (?). */
+    CMR2_h = 0x1d, };
+
+enum eepage_regs
+{ PROM_CMD = 6, PROM_DATA = 7 };        /* Note that PROM_CMD is in the "high" bits. */
+
+
+#define ISR_TxOK        0x01
+#define ISR_RxOK        0x04
+#define ISR_TxErr       0x02
+#define ISRh_RxErr      0x11    /* ISR, high nibble */
+
+#define CMR1h_MUX       0x08    /* Select printer multiplexor on 8012. */
+#define CMR1h_RESET     0x04    /* Reset. */
+#define CMR1h_RxENABLE  0x02    /* Rx unit enable.  */
+#define CMR1h_TxENABLE  0x01    /* Tx unit enable.  */
+#define CMR1h_TxRxOFF   0x00
+#define CMR1_ReXmit     0x08    /* Trigger a retransmit. */
+#define CMR1_Xmit       0x04    /* Trigger a transmit. */
+#define CMR1_IRQ        0x02    /* Interrupt active. */
+#define CMR1_BufEnb     0x01    /* Enable the buffer(?). */
+#define CMR1_NextPkt    0x01    /* Enable the buffer(?). */
+
+#define CMR2_NULL       8
+#define CMR2_IRQOUT     9
+#define CMR2_RAMTEST    10
+#define CMR2_EEPROM     12      /* Set to page 1, for reading the EEPROM. */
+
+#define CMR2h_OFF       0       /* No accept mode. */
+#define CMR2h_Physical  1       /* Accept a physical address match only. */
+#define CMR2h_Normal    2       /* Accept physical and broadcast address. */
+#define CMR2h_PROMISC   3       /* Promiscuous mode. */
+
+/* An inline function used below: it differs from inb() by explicitly return an unsigned
+   char, saving a truncation. */
+static inline unsigned char inbyte(unsigned short port)
+{
+    unsigned char _v;
+    __asm__ __volatile__ ("inb %w1,%b0" :"=a" (_v):"d" (port));
+    return _v;
+}
+
+/* Read register OFFSET.
+   This command should always be terminated with read_end(). */
+static inline unsigned char read_nibble(short port, unsigned char offset)
+{
+    unsigned char retval;
+    outb(EOC+offset, port + PAR_DATA);
+    outb(RdAddr+offset, port + PAR_DATA);
+    inbyte(port + PAR_STATUS);          /* Settling time delay */
+    retval = inbyte(port + PAR_STATUS);
+    outb(EOC+offset, port + PAR_DATA);
+
+    return retval;
+}
+
+/* Functions for bulk data read.  The interrupt line is always disabled. */
+/* Get a byte using read mode 0, reading data from the control lines. */
+static inline unsigned char read_byte_mode0(short ioaddr)
+{
+    unsigned char low_nib;
+
+    outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+    inbyte(ioaddr + PAR_STATUS);
+    low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+    outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
+    inbyte(ioaddr + PAR_STATUS);        /* Settling time delay -- needed!  */
+    inbyte(ioaddr + PAR_STATUS);        /* Settling time delay -- needed!  */
+    return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* The same as read_byte_mode0(), but does multiple inb()s for stability. */
+static inline unsigned char read_byte_mode2(short ioaddr)
+{
+    unsigned char low_nib;
+
+    outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+    inbyte(ioaddr + PAR_STATUS);
+    low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+    outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
+    inbyte(ioaddr + PAR_STATUS);        /* Settling time delay -- needed!  */
+    return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* Read a byte through the data register. */
+static inline unsigned char read_byte_mode4(short ioaddr)
+{
+    unsigned char low_nib;
+
+    outb(RdAddr | MAR, ioaddr + PAR_DATA);
+    low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+    outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
+    return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* Read a byte through the data register, double reading to allow settling. */
+static inline unsigned char read_byte_mode6(short ioaddr)
+{
+    unsigned char low_nib;
+
+    outb(RdAddr | MAR, ioaddr + PAR_DATA);
+    inbyte(ioaddr + PAR_STATUS);
+    low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+    outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
+    inbyte(ioaddr + PAR_STATUS);
+    return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+static inline void
+write_reg(short port, unsigned char reg, unsigned char value)
+{
+    unsigned char outval;
+    outb(EOC | reg, port + PAR_DATA);
+    outval = WrAddr | reg;
+    outb(outval, port + PAR_DATA);
+    outb(outval, port + PAR_DATA);      /* Double write for PS/2. */
+
+    outval &= 0xf0;
+    outval |= value;
+    outb(outval, port + PAR_DATA);
+    outval &= 0x1f;
+    outb(outval, port + PAR_DATA);
+    outb(outval, port + PAR_DATA);
+
+    outb(EOC | outval, port + PAR_DATA);
+}
+
+static inline void
+write_reg_high(short port, unsigned char reg, unsigned char value)
+{
+    unsigned char outval = EOC | HNib | reg;
+
+    outb(outval, port + PAR_DATA);
+    outval &= WrAddr | HNib | 0x0f;
+    outb(outval, port + PAR_DATA);
+    outb(outval, port + PAR_DATA);      /* Double write for PS/2. */
+
+    outval = WrAddr | HNib | value;
+    outb(outval, port + PAR_DATA);
+    outval &= HNib | 0x0f;              /* HNib | value */
+    outb(outval, port + PAR_DATA);
+    outb(outval, port + PAR_DATA);
+
+    outb(EOC | HNib | outval, port + PAR_DATA);
+}
+
+/* Write a byte out using nibble mode.  The low nibble is written first. */
+static inline void
+write_reg_byte(short port, unsigned char reg, unsigned char value)
+{
+    unsigned char outval;
+    outb(EOC | reg, port + PAR_DATA);   /* Reset the address register. */
+    outval = WrAddr | reg;
+    outb(outval, port + PAR_DATA);
+    outb(outval, port + PAR_DATA);      /* Double write for PS/2. */
+
+    outb((outval & 0xf0) | (value & 0x0f), port + PAR_DATA);
+    outb(value & 0x0f, port + PAR_DATA);
+    value >>= 4;
+    outb(value, port + PAR_DATA);
+    outb(0x10 | value, port + PAR_DATA);
+    outb(0x10 | value, port + PAR_DATA);
+
+    outb(EOC  | value, port + PAR_DATA);        /* Reset the address register. */
+}
+
+/*
+ * Bulk data writes to the packet buffer.  The interrupt line remains enabled.
+ * The first, faster method uses only the dataport (data modes 0, 2 & 4).
+ * The second (backup) method uses data and control regs (modes 1, 3 & 5).
+ * It should only be needed when there is skew between the individual data
+ * lines.
+ */
+static inline void write_byte_mode0(short ioaddr, unsigned char value)
+{
+    outb(value & 0x0f, ioaddr + PAR_DATA);
+    outb((value>>4) | 0x10, ioaddr + PAR_DATA);
+}
+
+static inline void write_byte_mode1(short ioaddr, unsigned char value)
+{
+    outb(value & 0x0f, ioaddr + PAR_DATA);
+    outb(Ctrl_IRQEN | Ctrl_LNibWrite, ioaddr + PAR_CONTROL);
+    outb((value>>4) | 0x10, ioaddr + PAR_DATA);
+    outb(Ctrl_IRQEN | Ctrl_HNibWrite, ioaddr + PAR_CONTROL);
+}
+
+/* Write 16bit VALUE to the packet buffer: the same as above just doubled. */
+static inline void write_word_mode0(short ioaddr, unsigned short value)
+{
+    outb(value & 0x0f, ioaddr + PAR_DATA);
+    value >>= 4;
+    outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
+    value >>= 4;
+    outb(value & 0x0f, ioaddr + PAR_DATA);
+    value >>= 4;
+    outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
+}
+
+/*  EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK    0x04    /* EEPROM shift clock. */
+#define EE_CS           0x02    /* EEPROM chip select. */
+#define EE_CLK_HIGH     0x12
+#define EE_CLK_LOW      0x16
+#define EE_DATA_WRITE   0x01    /* EEPROM chip data in. */
+#define EE_DATA_READ    0x08    /* EEPROM chip data out. */
+
+/* Delay between EEPROM clock transitions. */
+#define eeprom_delay(ticks) \
+do { int _i = 40; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_WRITE_CMD(offset)    (((5 << 6) + (offset)) << 17)
+#define EE_READ(offset)         (((6 << 6) + (offset)) << 17)
+#define EE_ERASE(offset)        (((7 << 6) + (offset)) << 17)
+#define EE_CMD_SIZE     27      /* The command+address+data size. */