ea1b812e77
o Attempt to disable the slot when we detect that there are problems with it in our ISR. This should make polling mode work better for more cards, but more work may be needed. This "disabling" sets the card interrupt register to 0. This worked for me for lots of tests in polling mode. o Now that I've found datasheets, fix a boatload of magic numbers in the source to make it easier to understand. o Use a table of names rather than a big case statement. o Cull a few of the "unused" controller types that we map to other times that were a vestiage of PAO code that we never merged in the same way. o Enforce legal IRQs. You are no longer allowed to try to use IRQs that will fail on all known ISA/PCI <-> PCMCIA bridges. The bridges do not have pins for these illegal interrupts, and all of them are listed as reserved and/or illegeal in the datasheets depending on which one you look at. o Add comments about how IBM-AT based computers and NEC PC-98 based computers map these interrupts and which ones are valid. o Always clear the bit that steers the management interrupt either to the value listed in the PCIC_STAT_INT register. I've seen this bit get set on suspend/resume and after windows boot, and it does't hurt to clear it. NOTE: this might mean we can share this interrupt in the future.
275 lines
11 KiB
C
275 lines
11 KiB
C
/*
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* i82365.h - Definitions for Intel 82365 PCIC
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* PCMCIA Card Interface Controller
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*
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* originally by Barry Jaspan; hacked over by Keith Moore
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* hacked to unrecognisability by Andrew McRae (andrew@mega.com.au)
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*
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* Updated 3/3/95 to include Cirrus Logic stuff.
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*-------------------------------------------------------------------------
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*
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* Copyright (c) 1995 Andrew McRae. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#define PCIC_I82365 0 /* Intel chip */
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#define PCIC_IBM 1 /* IBM clone */
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#define PCIC_VLSI 2 /* VLSI chip */
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#define PCIC_PD672X 3 /* Cirrus logic 672x */
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#define PCIC_PD6710 4 /* Cirrus logic 6710 */
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#define PCIC_VG365 5 /* Vadem 365 */
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#define PCIC_VG465 6 /* Vadem 465 */
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#define PCIC_VG468 7 /* Vadem 468 */
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#define PCIC_VG469 8 /* Vadem 469 */
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#define PCIC_RF5C396 9 /* Ricoh RF5C396 */
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#define PCIC_IBM_KING 10 /* IBM KING PCMCIA Controller */
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/* These last two aren't in normal freebsd */
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#define PCIC_PC98 11 /* NEC PC98 PCMCIA Controller */
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#define PCIC_TI1130 12 /* TI PCI1130 CardBus */
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/*
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* Address of the controllers. Each controller can manage
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* two PCMCIA slots. Up to 8 slots are supported in total.
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* The PCIC controller is accessed via an index port and a
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* data port. The index port has the 8 bit address of the
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* register accessed via the data port. How I long for
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* real memory mapped I/O!
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* The top two bits of the index address are used to
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* identify the port number, and the lower 6 bits
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* select one of the 64 possible data registers.
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*/
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#define PCIC_INDEX_0 0x3e0 /* index reg, chips 0 and 1 */
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#define PCIC_DATA_0 (PCIC_INDEX_0 + 1) /* data reg, chips 0 and 1 */
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#define PCIC_INDEX_1 (PCIC_INDEX_0 + 2) /* index reg, chips 2 and 3 */
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#define PCIC_DATA_1 (PCIC_INDEX_1 + 1) /* data reg, chips 2 and 3 */
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/*
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* Register index addresses.
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*/
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#define PCIC_ID_REV 0x00 /* Identification and Revision */
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#define PCIC_STATUS 0x01 /* Interface Status */
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#define PCIC_POWER 0x02 /* Power and RESETDRV control */
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#define PCIC_INT_GEN 0x03 /* Interrupt and General Control */
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#define PCIC_STAT_CHG 0x04 /* Card Status Change */
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#define PCIC_STAT_INT 0x05 /* Card Status Change Interrupt Config */
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#define PCIC_ADDRWINE 0x06 /* Address Window Enable */
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#define PCIC_IOCTL 0x07 /* I/O Control */
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#define PCIC_IO0 0x08 /* I/O Address 0 */
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#define PCIC_IO1 0x0c /* I/O Address 1 */
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#define PCIC_MEMBASE 0x10 /* Base of memory window registers */
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#define PCIC_CDGC 0x16 /* Card Detect and General Control */
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#define PCIC_MISC1 0x16 /* PD672x: Misc control register 1 per slot */
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#define PCIC_GLO_CTRL 0x1e /* Global Control Register */
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#define PCIC_MISC2 0x1e /* PD672x: Misc control register 2 per chip */
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#define PCIC_CLCHIP 0x1f /* PD67xx: Chip I/D */
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#define PCIC_CVSR 0x2f /* Vadem: Voltage select register */
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#define PCIC_VMISC 0x3a /* Vadem: Misc control register */
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#define PCIC_TIME_SETUP0 0x3a
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#define PCIC_TIME_CMD0 0x3b
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#define PCIC_TIME_RECOV0 0x3c
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#define PCIC_TIME_SETUP1 0x3d
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#define PCIC_TIME_CMD1 0x3e
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#define PCIC_TIME_RECOV1 0x3f
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#define PCIC_SLOT_SIZE 0x40 /* Size of register set for one slot */
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/* Now register bits, ordered by reg # */
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/* For Identification and Revision (PCIC_ID_REV) */
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#define PCIC_INTEL0 0x82 /* Intel 82365SL Rev. 0; Both Memory and I/O */
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#define PCIC_INTEL1 0x83 /* Intel 82365SL Rev. 1; Both Memory and I/O */
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#define PCIC_VLSI82C146 0x84 /* VLSI 82C146 */
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#define PCIC_IBM1 0x88 /* IBM PCIC clone; Both Memory and I/O */
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#define PCIC_IBM2 0x89 /* IBM PCIC clone; Both Memory and I/O */
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#define PCIC_IBM3 0x8a /* IBM KING PCIC clone; Both Memory and I/O */
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/* For Interface Status register (PCIC_STATUS) */
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#define PCIC_VPPV 0x80 /* Vpp_valid */
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#define PCIC_POW 0x40 /* PC Card power active */
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#define PCIC_READY 0x20 /* Ready/~Busy */
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#define PCIC_MWP 0x10 /* Memory Write Protect */
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#define PCIC_CD 0x0C /* Both card detect bits */
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#define PCIC_BVD 0x03 /* Both Battery Voltage Detect bits */
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/* For the Power and RESETDRV register (PCIC_POWER) */
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#define PCIC_OUTENA 0x80 /* Output Enable */
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#define PCIC_DISRST 0x40 /* Disable RESETDRV */
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#define PCIC_APSENA 0x20 /* Auto Pwer Switch Enable */
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#define PCIC_PCPWRE 0x10 /* PC Card Power Enable */
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#define PCIC_VCC 0x18 /* Vcc control bits */
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#define PCIC_VCC_5V 0x10 /* 5 volts */
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#define PCIC_VCC_3V 0x18 /* 3 volts */
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#define PCIC_VCC_5V_KING 0x14 /* 5 volts for KING PCIC */
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#define PCIC_VPP 0x03 /* Vpp control bits */
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#define PCIC_VPP_5V 0x01 /* 5 volts */
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#define PCIC_VPP_12V 0x02 /* 12 volts */
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/* For the Interrupt and General Control register (PCIC_INT_GEN) */
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#define PCIC_CARDTYPE 0x20 /* Card Type 0 = memory, 1 = I/O */
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#define PCIC_IOCARD 0x20
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#define PCIC_MEMCARD 0x00
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#define PCIC_CARDRESET 0x40 /* Card reset 0 = Reset, 1 = Normal */
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#define PCIC_INTR_ENA 0x10 /* Interrupt enable */
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/* For the Card Status Change register (PCIC_STAT_CHG) */
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#define PCIC_CDTCH 0x08 /* Card Detect Change */
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#define PCIC_RDYCH 0x04 /* Ready Change */
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#define PCIC_BATWRN 0x02 /* Battery Warning */
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#define PCIC_BATDED 0x01 /* Battery Dead */
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/*
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* For the Address Window Enable Register (PCIC_ADDRWINE)
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* The lower 6 bits contain enable bits for the memory
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* windows (LSB = memory window 0).
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*/
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#define PCIC_MEMCS16 0x20 /* ~MEMCS16 Decode A23-A12 */
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#define PCIC_IO0_EN 0x40 /* I/O Window 0 Enable */
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#define PCIC_IO1_EN 0x80 /* I/O Window 1 Enable */
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/*
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* For the I/O Control Register (PCIC_IOCTL)
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* The lower nybble is the flags for I/O window 0
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* The upper nybble is the flags for I/O window 1
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*/
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#define PCIC_IO_16BIT 0x01 /* I/O to this segment is 16 bit */
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#define PCIC_IO_CS16 0x02 /* I/O cs16 source is the card */
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#define PCIC_IO_0WS 0x04 /* zero wait states added on 8 bit cycles */
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#define PCIC_IO_WS 0x08 /* Wait states added for 16 bit cycles */
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/*
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* The memory window registers contain the start and end
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* physical host address that the PCIC maps to the card,
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* and an offset calculated from the card memory address.
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* All values are shifted down 12 bits, so allocation is
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* done in 4Kb blocks. Only 12 bits of each value is
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* stored, limiting the range to the ISA address size of
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* 24 bits. The upper 4 bits of the most significant byte
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* within the values are used for various flags.
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*
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* The layout is:
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*
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* base+0 : lower 8 bits of system memory start address
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* base+1 : upper 4 bits of system memory start address + flags
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* base+2 : lower 8 bits of system memory end address
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* base+3 : upper 4 bits of system memory end address + flags
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* base+4 : lower 8 bits of offset to card address
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* base+5 : upper 4 bits of offset to card address + flags
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*
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* The following two bytes are reserved for other use.
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*/
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#define PCIC_MEMSIZE 8
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/*
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* Flags for system memory start address upper byte
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*/
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#define PCIC_ZEROWS 0x40 /* Zero wait states */
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#define PCIC_DATA16 0x80 /* Data width is 16 bits */
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/*
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* Flags for system memory end address upper byte
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*/
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#define PCIC_MW0 0x40 /* Wait state bit 0 */
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#define PCIC_MW1 0x80 /* Wait state bit 1 */
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/*
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* Flags for card offset upper byte
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*/
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#define PCIC_REG 0x40 /* Attribute/Common select (why called Reg?) */
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#define PCIC_WP 0x80 /* Write-protect this window */
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/* For Card Detect and General Control register (PCIC_CDGC) */
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#define PCIC_16_DL_INH 0x01 /* 16-bit memory delay inhibit */
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#define PCIC_CNFG_RST_EN 0x02 /* configuration reset enable */
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#define PCIC_GPI_EN 0x04 /* GPI Enable */
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#define PCIC_GPI_TRANS 0x08 /* GPI Transition Control */
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#define PCIC_CDRES_EN 0x10 /* card detect resume enable */
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#define PCIC_SW_CD_INT 0x20 /* s/w card detect interrupt */
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/* CL-PD67[12]x: For 3.3V cards, etc. (PCIC_MISC1) */
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#define PCIC_MISC1_5V_DETECT 0x01 /* PD6710 only */
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#define PCIC_MISC1_VCC_33 0x02 /* Set Vcc is 3.3V, else 5.0V */
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#define PCIC_MISC1_PMINT 0x04 /* Pulse management intr */
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#define PCIC_MISC1_PCINT 0x08 /* Pulse card interrupt */
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#define PCIC_MISC1_SPEAKER 0x10 /* Enable speaker */
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#define PCIC_MISC1_INPACK 0x80 /* INPACK throttles data */
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/* i82365B and newer (!PD67xx) Global Control register (PCIC_GLO_CTRL) */
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#define PCIC_PWR_DOWN 0x01 /* power down */
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#define PCIC_LVL_MODE 0x02 /* level mode interrupt enable */
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#define PCIC_WB_CSCINT 0x04 /* explicit write-back csc intr */
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/* Rev B only */
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#define PCIC_IRQ0_LEVEL 0x08 /* irq 14 pulse mode enable */
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#define PCIC_IRQ1_LEVEL 0x10
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/* CL-PD67[12]x: For Misc. Control Register 2 (PCIC_MISC2) */
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#define PCIC_LPDM_EN 0x02 /* Cirrus PD672x: low power dynamic mode */
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/* CL-PD67[12]x: Chip info (PCIC_CLCHIP) */
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#define PCIC_CLC_TOGGLE 0xc0 /* These bits toggle 1 -> 0 */
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#define PCIC_CLC_DUAL 0x20 /* Single/dual socket version */
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/* Vadem: Card Voltage Select register (PCIC_CVSR) */
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#define PCIC_CVSR_VS 0x03 /* Voltage select */
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#define PCIC_CVSR_VS_5 0x00 /* 5.0 V */
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#define PCIC_CVSR_VS_33a 0x01 /* alt 3.3V */
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#define PCIC_CVSR_VS_XX 0x02 /* X.XV when available */
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#define PCIC_CVSR_VS_33 0x03 /* 3.3V */
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/* Vadem: misc register (PCIC_VMISC) */
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#define PCIC_VADEMREV 0x40
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/*
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* Mask of allowable interrupts.
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*
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* For IBM-AT machines, irqs 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 are
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* allowed. Nearly all IBM-AT machines with pcic cards or bridges
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* wire these interrupts (or a subset thereof) to the corresponding
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* pins on the ISA bus. Some older laptops are reported to not route
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* all the interrupt pins to the bus because the designers knew that
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* some would conflict with builtin devices.
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*
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* For NEC PC98 machines, irq 3, 5, 6, 9, 10, 11, 12, 13 are allowed.
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* These correspond to the C-BUS signals INT 0, 1, 2, 3, 41, 42, 5, 6
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* respectively. This is with the desktop C-BUS addin card. I don't
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* know if this corresponds to laptop usage or not.
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*
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* I'm not sure the proper way to map these interrupts, but it looks
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* like pc98 is a subset of ibm-at so no actual mapping is required.
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*/
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#ifdef PC98
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#define PCIC_INT_MASK_ALLOWED 0x3E68 /* PC98 */
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#else
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#define PCIC_INT_MASK_ALLOWED 0xDEB8 /* AT */
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#endif
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#define PCIC_IO_WIN 2
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#define PCIC_MEM_WIN 5
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#define PCIC_CARD_SLOTS 4
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#define PCIC_MAX_CARDS 2
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#define PCIC_MAX_SLOTS (PCIC_MAX_CARDS * PCIC_CARD_SLOTS)
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