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, 137 insertions, 0 deletions

diff --git a/include/linux/fdreg.h b/include/linux/fdreg.h
new file mode 100644
index 000000000000..c2eeb63b72db
--- /dev/null
+++ b/include/linux/fdreg.h
@@ -0,0 +1,137 @@
+#ifndef _LINUX_FDREG_H
+#define _LINUX_FDREG_H
+/*
+ * This file contains some defines for the floppy disk controller.
+ * Various sources. Mostly "IBM Microcomputers: A Programmers
+ * Handbook", Sanches and Canton.
+ */
+
+#ifdef FDPATCHES
+#define FD_IOPORT fdc_state[fdc].address
+#else
+/* It would be a lot saner just to force fdc_state[fdc].address to always
+   be set ! FIXME */
+#define FD_IOPORT 0x3f0
+#endif
+
+/* Fd controller regs. S&C, about page 340 */
+#define FD_STATUS       (4 + FD_IOPORT )
+#define FD_DATA         (5 + FD_IOPORT )
+
+/* Digital Output Register */
+#define FD_DOR          (2 + FD_IOPORT )
+
+/* Digital Input Register (read) */
+#define FD_DIR          (7 + FD_IOPORT )
+
+/* Diskette Control Register (write)*/
+#define FD_DCR          (7 + FD_IOPORT )
+
+/* Bits of main status register */
+#define STATUS_BUSYMASK 0x0F            /* drive busy mask */
+#define STATUS_BUSY     0x10            /* FDC busy */
+#define STATUS_DMA      0x20            /* 0- DMA mode */
+#define STATUS_DIR      0x40            /* 0- cpu->fdc */
+#define STATUS_READY    0x80            /* Data reg ready */
+
+/* Bits of FD_ST0 */
+#define ST0_DS          0x03            /* drive select mask */
+#define ST0_HA          0x04            /* Head (Address) */
+#define ST0_NR          0x08            /* Not Ready */
+#define ST0_ECE         0x10            /* Equipment check error */
+#define ST0_SE          0x20            /* Seek end */
+#define ST0_INTR        0xC0            /* Interrupt code mask */
+
+/* Bits of FD_ST1 */
+#define ST1_MAM         0x01            /* Missing Address Mark */
+#define ST1_WP          0x02            /* Write Protect */
+#define ST1_ND          0x04            /* No Data - unreadable */
+#define ST1_OR          0x10            /* OverRun */
+#define ST1_CRC         0x20            /* CRC error in data or addr */
+#define ST1_EOC         0x80            /* End Of Cylinder */
+
+/* Bits of FD_ST2 */
+#define ST2_MAM         0x01            /* Missing Address Mark (again) */
+#define ST2_BC          0x02            /* Bad Cylinder */
+#define ST2_SNS         0x04            /* Scan Not Satisfied */
+#define ST2_SEH         0x08            /* Scan Equal Hit */
+#define ST2_WC          0x10            /* Wrong Cylinder */
+#define ST2_CRC         0x20            /* CRC error in data field */
+#define ST2_CM          0x40            /* Control Mark = deleted */
+
+/* Bits of FD_ST3 */
+#define ST3_HA          0x04            /* Head (Address) */
+#define ST3_DS          0x08            /* drive is double-sided */
+#define ST3_TZ          0x10            /* Track Zero signal (1=track 0) */
+#define ST3_RY          0x20            /* drive is ready */
+#define ST3_WP          0x40            /* Write Protect */
+#define ST3_FT          0x80            /* Drive Fault */
+
+/* Values for FD_COMMAND */
+#define FD_RECALIBRATE          0x07    /* move to track 0 */
+#define FD_SEEK                 0x0F    /* seek track */
+#define FD_READ                 0xE6    /* read with MT, MFM, SKip deleted */
+#define FD_WRITE                0xC5    /* write with MT, MFM */
+#define FD_SENSEI               0x08    /* Sense Interrupt Status */
+#define FD_SPECIFY              0x03    /* specify HUT etc */
+#define FD_FORMAT               0x4D    /* format one track */
+#define FD_VERSION              0x10    /* get version code */
+#define FD_CONFIGURE            0x13    /* configure FIFO operation */
+#define FD_PERPENDICULAR        0x12    /* perpendicular r/w mode */
+#define FD_GETSTATUS            0x04    /* read ST3 */
+#define FD_DUMPREGS             0x0E    /* dump the contents of the fdc regs */
+#define FD_READID               0xEA    /* prints the header of a sector */
+#define FD_UNLOCK               0x14    /* Fifo config unlock */
+#define FD_LOCK                 0x94    /* Fifo config lock */
+#define FD_RSEEK_OUT            0x8f    /* seek out (i.e. to lower tracks) */
+#define FD_RSEEK_IN             0xcf    /* seek in (i.e. to higher tracks) */
+
+/* the following commands are new in the 82078. They are not used in the
+ * floppy driver, except the first three. These commands may be useful for apps
+ * which use the FDRAWCMD interface. For doc, get the 82078 spec sheets at
+ * http://www-techdoc.intel.com/docs/periph/fd_contr/datasheets/ */
+
+#define FD_PARTID               0x18    /* part id ("extended" version cmd) */
+#define FD_SAVE                 0x2e    /* save fdc regs for later restore */
+#define FD_DRIVESPEC            0x8e    /* drive specification: Access to the
+                                         * 2 Mbps data transfer rate for tape
+                                         * drives */
+
+#define FD_RESTORE              0x4e    /* later restore */
+#define FD_POWERDOWN            0x27    /* configure FDC's powersave features */
+#define FD_FORMAT_N_WRITE       0xef    /* format and write in one go. */
+#define FD_OPTION               0x33    /* ISO format (which is a clean way to
+                                         * pack more sectors on a track) */
+
+/* DMA commands */
+#define DMA_READ        0x46
+#define DMA_WRITE       0x4A
+
+/* FDC version return types */
+#define FDC_NONE        0x00
+#define FDC_UNKNOWN     0x10    /* DO NOT USE THIS TYPE EXCEPT IF IDENTIFICATION
+                                   FAILS EARLY */
+#define FDC_8272A       0x20    /* Intel 8272a, NEC 765 */
+#define FDC_765ED       0x30    /* Non-Intel 1MB-compatible FDC, can't detect */
+#define FDC_82072       0x40    /* Intel 82072; 8272a + FIFO + DUMPREGS */
+#define FDC_82072A      0x45    /* 82072A (on Sparcs) */
+#define FDC_82077_ORIG  0x51    /* Original version of 82077AA, sans LOCK */
+#define FDC_82077       0x52    /* 82077AA-1 */
+#define FDC_82078_UNKN  0x5f    /* Unknown 82078 variant */
+#define FDC_82078       0x60    /* 44pin 82078 or 64pin 82078SL */
+#define FDC_82078_1     0x61    /* 82078-1 (2Mbps fdc) */
+#define FDC_S82078B     0x62    /* S82078B (first seen on Adaptec AVA-2825 VLB
+                                 * SCSI/EIDE/Floppy controller) */
+#define FDC_87306       0x63    /* National Semiconductor PC 87306 */
+
+/*
+ * Beware: the fdc type list is roughly sorted by increasing features.
+ * Presence of features is tested by comparing the FDC version id with the
+ * "oldest" version that has the needed feature.
+ * If during FDC detection, an obscure test fails late in the sequence, don't
+ * assign FDC_UNKNOWN. Else the FDC will be treated as a dumb 8272a, or worse.
+ * This is especially true if the tests are unneeded.
+ */
+
+#define FD_RESET_DELAY 20
+#endif