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freebsd-skq/sys/dev/aic7xxx/aic7xxx_93cx6.h

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Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
/*
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
* Interface to the 93C46/56 serial EEPROM that is used to store BIOS
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
* settings for the aic7xxx based adaptec SCSI controllers. It can
* also be used for 93C26 and 93C06 serial EEPROMS.
*
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
* Copyright (c) 1994, 1995, 2000 Justin T. Gibbs.
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
Update copyright license terms to match the reset of the aic7xxx dirver.
2000-02-03 16:54:11 +00:00
* without modification.
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
Update copyright license terms to match the reset of the aic7xxx dirver.
2000-02-03 16:54:11 +00:00
* Alternatively, this software may be distributed under the terms of the
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* GNU Public License ("GPL").
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
Add Perforce RCSIDs for easy revision correlation to my local tree. ahc_pci.c: Bring back the AHC_ALLOW_MEMIO option at least until the memory mapped I/O problem on the SuperMicro 370DR3 is better understood. aic7xxx.c: If we see a spurious SCSI interrupt, attempt to clear it and continue by unpausing the sequencer. Change the interface to ahc_send_async(). Some async messages need to be broadcast to all the luns of a target or all the targets of a bus. This is easier to achieve by passing explicit channel, target, and lun parameters instead of attempting to construct a device info struct to match. Filter the sync parameters for the PPR message in exactly the same way we do for an old fashioned SDTR message. Correct some typos and correct a panic message. Handle rejected PPR messages. In ahc_handle_msg_reject(), let ahc_build_transfer_msg() build any additional transfer messages instead of doing this inline. aic7xxx.h: Increase the size of both msgout_buf and msgin_buf to better accomodate PPR messages. aic7xxx_freebsd.c: Update for change in ahc_send_async() parameters. aic7xxx_freebsd.h Update for change in ahc_send_async() parameters. Honor AHC_ALLOW_MEMIO. aic7xxx_pci.c: Check the error register before going into full blown PCI interrupt handling. This avoids a few costly PCI configuration space reads when we run our PCI interrupt handler because another device sharing our interrupt line is more active than we are. Also unpause the sequencer after processing a PCI interrupt.
2000-09-22 22:18:05 +00:00
* $Id: //depot/src/aic7xxx/aic7xxx_93cx6.h#3 $
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
*
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
* $FreeBSD$
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
*/
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
#ifndef _AIC7XXX_93CX6_H_
#define _AIC7XXX_93CX6_H_
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
typedef enum {
C46 = 6,
C56_66 = 8
} seeprom_chip_t;
struct seeprom_descriptor {
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
struct ahc_softc *sd_ahc;
u_int sd_control_offset;
u_int sd_status_offset;
u_int sd_dataout_offset;
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
seeprom_chip_t sd_chip;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint16_t sd_MS;
uint16_t sd_RDY;
uint16_t sd_CS;
uint16_t sd_CK;
uint16_t sd_DO;
uint16_t sd_DI;
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
};
/*
* This function will read count 16-bit words from the serial EEPROM and
* return their value in buf. The port address of the aic7xxx serial EEPROM
* control register is passed in as offset. The following parameters are
* also passed in:
*
* CS - Chip select
* CK - Clock
* DO - Data out
* DI - Data in
* RDY - SEEPROM ready
* MS - Memory port mode select
*
* A failed read attempt returns 0, and a successful read returns 1.
*/
#define SEEPROM_INB(sd) \
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
ahc_inb(sd->sd_ahc, sd->sd_control_offset)
#define SEEPROM_OUTB(sd, value) \
do { \
ahc_outb(sd->sd_ahc, sd->sd_control_offset, value); \
ahc_flush_device_writes(sd->sd_ahc); \
} while(0)
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
#define SEEPROM_STATUS_INB(sd) \
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
ahc_inb(sd->sd_ahc, sd->sd_status_offset)
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
#define SEEPROM_DATA_INB(sd) \
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
ahc_inb(sd->sd_ahc, sd->sd_dataout_offset)
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int read_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
u_int start_addr, u_int count);
int verify_cksum(struct seeprom_config *sc);
Massive overhaul of the aic7xxx driver: - Convert to CAM - Use a new DMA based queuing and paging scheme - Add preliminary target mode support - Add support for the aic789X chips - Take advantage of external SRAM on more controllers. - Numerous bug fixes and performance improvements.
1998-09-15 07:24:17 +00:00
Move aicasm to its own subdirectory. Separate our platform independent hooks from core driver functionality shared between platforms (FreeBSD and Linux at this time). Add sequencer workarounds for several chip->chipset interactions. Correct external SCB corruption problem on aic7895 based cards (3940AUW). Lots of cleanups resulting from the port to another OS.
2000-09-16 20:02:28 +00:00
#endif /* _AIC7XXX_93CX6_H_ */
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