/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #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. */ /* 82077's auxiliary status registers A & B (R) */ #define FD_SRA … #define FD_SRB … /* Digital Output Register */ #define FD_DOR … /* 82077's tape drive register (R/W) */ #define FD_TDR … /* 82077's data rate select register (W) */ #define FD_DSR … /* Fd controller regs. S&C, about page 340 */ #define FD_STATUS … #define FD_DATA … /* Digital Input Register (read) */ #define FD_DIR … /* Diskette Control Register (write)*/ #define FD_DCR … /* Bits of main status register */ #define STATUS_BUSYMASK … #define STATUS_BUSY … #define STATUS_DMA … #define STATUS_DIR … #define STATUS_READY … /* Bits of FD_ST0 */ #define ST0_DS … #define ST0_HA … #define ST0_NR … #define ST0_ECE … #define ST0_SE … #define ST0_INTR … /* Bits of FD_ST1 */ #define ST1_MAM … #define ST1_WP … #define ST1_ND … #define ST1_OR … #define ST1_CRC … #define ST1_EOC … /* Bits of FD_ST2 */ #define ST2_MAM … #define ST2_BC … #define ST2_SNS … #define ST2_SEH … #define ST2_WC … #define ST2_CRC … #define ST2_CM … /* Bits of FD_ST3 */ #define ST3_HA … #define ST3_DS … #define ST3_TZ … #define ST3_RY … #define ST3_WP … #define ST3_FT … /* Values for FD_COMMAND */ #define FD_RECALIBRATE … #define FD_SEEK … #define FD_READ … #define FD_WRITE … #define FD_SENSEI … #define FD_SPECIFY … #define FD_FORMAT … #define FD_VERSION … #define FD_CONFIGURE … #define FD_PERPENDICULAR … #define FD_GETSTATUS … #define FD_DUMPREGS … #define FD_READID … #define FD_UNLOCK … #define FD_LOCK … #define FD_RSEEK_OUT … #define FD_RSEEK_IN … /* 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.intel.com/design/archives/periphrl/docs/29046803.htm */ #define FD_PARTID … #define FD_SAVE … #define FD_DRIVESPEC … #define FD_RESTORE … #define FD_POWERDOWN … #define FD_FORMAT_N_WRITE … #define FD_OPTION … /* DMA commands */ #define DMA_READ … #define DMA_WRITE … /* FDC version return types */ #define FDC_NONE … #define FDC_UNKNOWN … #define FDC_8272A … #define FDC_765ED … #define FDC_82072 … #define FDC_82072A … #define FDC_82077_ORIG … #define FDC_82077 … #define FDC_82078_UNKN … #define FDC_82078 … #define FDC_82078_1 … #define FDC_S82078B … #define FDC_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 … #endif
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