WIP "G1-ATA" IDE HDD support. Not enabled by default.

Demonstrated on NetBSD booth at Open Source Conference 2016 Tokyo Fall
and Kansai Open Source 2016:
 http://mail-index.netbsd.org/netbsd-advocacy/2016/11/09/msg000721.html
 http://mail-index.netbsd.org/netbsd-advocacy/2016/11/16/msg000722.html

See my port-dreamcast@ post for more details:
 http://mail-index.netbsd.org/port-dreamcast/2016/12/18/msg000295.html
This commit is contained in:
tsutsui 2016-12-29 11:49:05 +00:00
parent 1913804a7a
commit 240be73e18
7 changed files with 1569 additions and 1 deletions

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@ -0,0 +1,248 @@
# $NetBSD: G1IDE,v 1.1 2016/12/29 11:49:05 tsutsui Exp $
include "arch/dreamcast/conf/std.dreamcast"
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
maxusers 16 # estimated number of users
# Standard system options
#options INSECURE # disable kernel security levels
#options RTC_OFFSET=-540
options HZ=100 # clock interrupt generates every 1/HZ sec
options NTP # NTP phase/frequency locked loop
options KTRACE # system call tracing via ktrace(1)
options USERCONF # userconf(4) support
#options PIPE_SOCKETPAIR # smaller, but slower pipe(2)
options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel
options SYSVMSG # System V-like message queues
options SYSVSEM # System V-like semaphores
options SYSVSHM # System V-like memory sharing
#options MODULAR # new style module(7) framework
#options MODULAR_DEFAULT_AUTOLOAD
# Alternate buffer queue strategies for better responsiveness under high
# disk I/O load.
#options BUFQ_READPRIO
options BUFQ_PRIOCSCAN
# Diagnostic/debugging support options
options DIAGNOSTIC # cheap kernel consistency checks
#options DEBUG # expensive debugging checks/support
options DDB # in-kernel debugger
#options KGDB # remote debugger
#options "KGDB_DEVNAME=\"scif\"",KGDB_DEVRATE=57600
#makeoptions DEBUG="-g" # compile full symbol table
makeoptions COPY_SYMTAB=1
#options SYSCALL_DEBUG
#options UVMHIST
#options UVMHIST_PRINT
# Compatibility options
options COMPAT_16 # NetBSD 1.6,
options COMPAT_20 # NetBSD 2.0,
options COMPAT_30 # NetBSD 3.0,
options COMPAT_40 # NetBSD 4.0,
options COMPAT_50 # NetBSD 5.0,
options COMPAT_60 # NetBSD 6.0, and
options COMPAT_70 # NetBSD 7.0 binary compatibility.
options COMPAT_43 # and 4.3BSD
#options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended.
options COMPAT_BSDPTY # /dev/[pt]ty?? ptys.
# Executable format options
options EXEC_COFF # COFF executables
# File systems
file-system FFS # UFS
#file-system EXT2FS # second extended file system (linux)
#file-system LFS # log-structured file system
file-system MFS # memory file system
file-system NFS # Network File System client
file-system CD9660 # CD-ROM file system
file-system MSDOSFS # MS-DOS file system
file-system FDESC # /dev/fd
file-system KERNFS # /kern
file-system PROCFS # /proc
file-system NULLFS # loopback file system
#file-system OVERLAY # overlay file system
#file-system UMAPFS # NULLFS + uid and gid remapping
file-system UNION # union file system
file-system PTYFS # /dev/pts/N support
file-system TMPFS # Efficient memory file-system
#file-system UDF # experimental - OSTA UDF CD/DVD file-system
# File system options
#options QUOTA # legacy UFS quotas
#options QUOTA2 # new, in-filesystem UFS quotas
#options FFS_EI # FFS Endian Independent supoprt
options WAPBL # File system journaling support
#options UFS_DIRHASH # UFS Large Directory Hashing - Experimental
#options NFSSERVER # Network File System server
options FFS_NO_SNAPSHOT # No FFS snapshot support
#options UFS_EXTATTR # Extended attribute support for UFS1
#options EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
# immutable) behave as system flags.
# Networking options
options INET # IP + ICMP + TCP + UDP
options INET6 # IPV6
#options IPSEC # IP security
#options IPSEC_DEBUG # debug for IP security
#options MROUTING # IP multicast routing
#options PIM # Protocol Independent Multicast
#options NETATALK # AppleTalk networking protocols
#options PPP_BSDCOMP # BSD-Compress compression support for PPP
#options PPP_DEFLATE # Deflrate compression support for PPP
#options PPP_FILTER # Active filter support for PPP (requires bpf)
#options IPFILTER_LOG # ipmon(8) log support
#options IPFILTER_LOOKUP # ippool(8) support
#options IPFILTER_DEFAULT_BLOCK # block all packets by default
#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG
#options ALTQ # Manipulate network interfaces' output queues
#options ALTQ_BLUE # Stochastic Fair Blue
#options ALTQ_CBQ # Class-Based Queueing
#options ALTQ_CDNR # Diffserv Traffic Conditioner
#options ALTQ_FIFOQ # First-In First-Out Queue
#options ALTQ_FLOWVALVE # RED/flow-valve (red-penalty-box)
#options ALTQ_HFSC # Hierarchical Fair Service Curve
#options ALTQ_LOCALQ # Local queueing discipline
#options ALTQ_PRIQ # Priority Queueing
#options ALTQ_RED # Random Early Detection
#options ALTQ_RIO # RED with IN/OUT
#options ALTQ_WFQ # Weighted Fair Queueing
#options PCIVERBOSE # verbose PCI device autoconfig messages
#options MIIVERBOSE # verbose PHY autoconfig messages
#options PCI_CONFIG_DUMP # verbosely dump PCI config space
options NFS_BOOT_DHCP # Support DHCP NFS root
options KLOADER # in-kernel bootloader
#options KLOADER_DEBUG
# wscons options
options WSEMUL_VT100 # VT100 / VT220 emulation
options WSDISPLAY_COMPAT_USL # wsconscfg VT handling
options FONT_BOLD8x16
#options FONT_SONY8x16
# Kernel root file system and dump configuration.
#config netbsd root on ? type nfs
#config netbsd root on wd0a type ffs
config netbsd root on ? type ?
#
# Device configuration
#
mainbus0 at root
cpu* at mainbus?
shb* at mainbus?
# Serial Devices
#options SCIFCONSOLE
options SCIFCN_SPEED=57600
scif0 at shb?
pvr0 at shb?
wsdisplay* at pvr? console ?
maple0 at shb?
mkbd* at maple? port ? subunit ?
wskbd* at mkbd? mux 1 console ?
mms* at maple? port ? subunit ?
wsmouse* at mms? mux 0
#mmem* at maple? port ? subunit ?
#mlcd* at maple? port ? subunit ?
#gdrom0 at shb?
g1bus0 at shb?
wdc0 at g1bus?
atabus* at wdc? channel ?
wd* at atabus? drive ? flags 0x0000
#options ATADEBUG
#options ATADEBUG_MASK=DEBUG_PROBE
#options ATADEBUG_MASK="(DEBUG_PROBE|DEBUG_XFERS)"
# To enable "gdrom0 at atapibus?" also edit gdrom lines in conf/files.dreamcast
atapibus* at atabus?
gdrom0 at atapibus?
g2bus0 at shb?
g2rtc0 at g2bus? # time-of-day clock
gapspci* at g2bus? # GAPS PCI bridge
pci* at gapspci?
rtk* at pci? dev ? function ? # SEGA Broadband Adapter
rlphy* at mii? phy ?
mbe* at g2bus? # SEGA LAN Adapter
#aica* at g2bus? # AICA Sound Processing Unit
#audio* at aica?
#spkr* at audio? # PC speaker (synthesized)
#pseudo-device cgd # cryptographic disk devices
pseudo-device md # memory disk device (ramdisk)
pseudo-device vnd # disk-like interface to files
#options VND_COMPRESSION # compressed vnd(4)
# network pseudo-devices
pseudo-device bpfilter # Berkeley packet filter
#pseudo-device carp # Common Address Redundancy Protocol
#pseudo-device ipfilter # IP filter (firewall) and NAT
pseudo-device loop # network loopback
#pseudo-device ppp # Point-to-Point Protocol
#pseudo-device pppoe # PPP over Ethernet (RFC 2516)
#pseudo-device sl # Serial Line IP
#pseudo-device tun # network tunneling over tty
#pseudo-device tap # virtual Ethernet
#pseudo-device gre # generic L3 over IP tunnel
#pseudo-device gif # IPv[46] over IPv[46] tunnel (RFC1933)
#pseudo-device faith # IPv[46] tcp relay translation i/f
#pseudo-device stf # 6to4 IPv6 over IPv4 encapsulation
#pseudo-device vlan # IEEE 802.1q encapsulation
#pseudo-device bridge # simple inter-network bridging
#options BRIDGE_IPF # bridge uses IP/IPv6 pfil hooks too
#pseudo-device agr # IEEE 802.3ad link aggregation
#
# accept filters
pseudo-device accf_data # "dataready" accept filter
pseudo-device accf_http # "httpready" accept filter
# miscellaneous pseudo-devices
pseudo-device pty # pseudo-terminals
pseudo-device clockctl # user control of clock subsystem
pseudo-device wsmux # mouse & keyboard multiplexor
pseudo-device ksyms # /dev/ksyms
#pseudo-device pf # PF packet filter
#pseudo-device pflog # PF log if
# Veriexec
#
# a pseudo device needed for veriexec
#pseudo-device veriexec
#
# Uncomment the fingerprint methods below that are desired. Note that
# removing fingerprint methods will have almost no impact on the kernel
# code size.
#
#options VERIFIED_EXEC_FP_RMD160
#options VERIFIED_EXEC_FP_SHA256
#options VERIFIED_EXEC_FP_SHA384
#options VERIFIED_EXEC_FP_SHA512
#options VERIFIED_EXEC_FP_SHA1
#options VERIFIED_EXEC_FP_MD5

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@ -1,4 +1,4 @@
# $NetBSD: files.dreamcast,v 1.30 2008/02/20 21:43:33 drochner Exp $
# $NetBSD: files.dreamcast,v 1.31 2016/12/29 11:49:05 tsutsui Exp $
# maxpartitions must be first item in files.${MACHINE}
maxpartitions 16
@ -77,9 +77,19 @@ device pvr: wsemuldisplaydev, rasops16
attach pvr at shb
file arch/dreamcast/dev/pvr.c pvr needs-flag
device g1bus { }
attach g1bus at shb
file arch/dreamcast/dev/g1/g1bus.c g1bus
file arch/dreamcast/dev/g1/g1bus_bus_mem.c g1bus
attach wdc at g1bus with wdc_g1bus
file arch/dreamcast/dev/g1/wdc_g1.c wdc_g1bus
device gdrom: disk
attach gdrom at shb
file arch/dreamcast/dev/gdrom.c gdrom needs-flag
#attach gdrom at atapibus
#file arch/dreamcast/dev/g1/gdrom.c gdrom needs-flag
device g2bus { }
attach g2bus at shb

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/* $NetBSD: g1bus.c,v 1.1 2016/12/29 11:49:05 tsutsui Exp $ */
/*-
* Copyright (c) 2001 Marcus Comstedt
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Marcus Comstedt.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: g1bus.c,v 1.1 2016/12/29 11:49:05 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <dreamcast/dev/g1/g1busvar.h>
int g1busmatch(device_t, cfdata_t, void *);
void g1busattach(device_t, device_t, void *);
int g1busprint(void *, const char *);
CFATTACH_DECL_NEW(g1bus, sizeof(struct g1bus_softc),
g1busmatch, g1busattach, NULL, NULL);
int g1bussearch(device_t, cfdata_t, const int *, void *);
int
g1busmatch(device_t parent, cfdata_t cf, void *aux)
{
return 1;
}
void
g1busattach(device_t parent, device_t self, void *aux)
{
struct g1bus_softc *sc = device_private(self);
struct g1bus_attach_args ga;
sc->sc_dev = self;
printf("\n");
g1bus_bus_mem_init(sc);
ga.ga_memt = &sc->sc_memt;
config_search_ia(g1bussearch, self, "g1bus", &ga);
}
int
g1busprint(void *aux, const char *pnp)
{
return UNCONF;
}
int
g1bussearch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
if (config_match(parent, cf, aux) > 0)
config_attach(parent, cf, aux, g1busprint);
return 0;
}

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/* $NetBSD: g1bus_bus_mem.c,v 1.1 2016/12/29 11:49:05 tsutsui Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Bus space implementation for the SEGA G1 bus, for GD-ROM and IDE port.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: g1bus_bus_mem.c,v 1.1 2016/12/29 11:49:05 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <machine/cpu.h>
#include <dreamcast/dev/g1/g1busvar.h>
int g1bus_bus_mem_map(void *, bus_addr_t, bus_size_t, int,
bus_space_handle_t *);
void g1bus_bus_mem_unmap(void *, bus_space_handle_t, bus_size_t);
int g1bus_bus_mem_subregion(void *, bus_space_handle_t, bus_size_t,
bus_size_t, bus_space_handle_t *);
paddr_t g1bus_bus_mem_mmap(void *, bus_addr_t, off_t, int, int);
uint8_t g1bus_bus_mem_read_1(void *, bus_space_handle_t, bus_size_t);
uint16_t g1bus_bus_mem_read_2(void *, bus_space_handle_t, bus_size_t);
uint32_t g1bus_bus_mem_read_4(void *, bus_space_handle_t, bus_size_t);
void g1bus_bus_mem_write_1(void *, bus_space_handle_t, bus_size_t,
uint8_t);
void g1bus_bus_mem_write_2(void *, bus_space_handle_t, bus_size_t,
uint16_t);
void g1bus_bus_mem_write_4(void *, bus_space_handle_t, bus_size_t,
uint32_t);
void g1bus_bus_mem_read_region_1(void *, bus_space_handle_t, bus_size_t,
uint8_t *, bus_size_t);
void g1bus_bus_mem_read_region_2(void *, bus_space_handle_t, bus_size_t,
uint16_t *, bus_size_t);
void g1bus_bus_mem_read_region_4(void *, bus_space_handle_t, bus_size_t,
uint32_t *, bus_size_t);
void g1bus_bus_mem_write_region_1(void *, bus_space_handle_t, bus_size_t,
const uint8_t *, bus_size_t);
void g1bus_bus_mem_write_region_2(void *, bus_space_handle_t, bus_size_t,
const uint16_t *, bus_size_t);
void g1bus_bus_mem_write_region_4(void *, bus_space_handle_t, bus_size_t,
const uint32_t *, bus_size_t);
void g1bus_bus_mem_set_region_4(void *, bus_space_handle_t, bus_size_t,
uint32_t, bus_size_t);
void g1bus_bus_mem_read_multi_1(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
void g1bus_bus_mem_read_multi_2(void *, bus_space_handle_t,
bus_size_t, uint16_t *, bus_size_t);
void g1bus_bus_mem_write_multi_1(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
void g1bus_bus_mem_write_multi_2(void *, bus_space_handle_t,
bus_size_t, const uint16_t *, bus_size_t);
void
g1bus_bus_mem_init(struct g1bus_softc *sc)
{
bus_space_tag_t t = &sc->sc_memt;
memset(t, 0, sizeof(*t));
t->dbs_map = g1bus_bus_mem_map;
t->dbs_unmap = g1bus_bus_mem_unmap;
t->dbs_subregion = g1bus_bus_mem_subregion;
t->dbs_mmap = g1bus_bus_mem_mmap;
t->dbs_r_1 = g1bus_bus_mem_read_1;
t->dbs_r_2 = g1bus_bus_mem_read_2;
t->dbs_r_4 = g1bus_bus_mem_read_4;
t->dbs_w_1 = g1bus_bus_mem_write_1;
t->dbs_w_2 = g1bus_bus_mem_write_2;
t->dbs_w_4 = g1bus_bus_mem_write_4;
t->dbs_rm_1 = g1bus_bus_mem_read_multi_1;
t->dbs_rm_2 = g1bus_bus_mem_read_multi_2;
t->dbs_wm_1 = g1bus_bus_mem_write_multi_1;
t->dbs_wm_2 = g1bus_bus_mem_write_multi_2;
t->dbs_rr_1 = g1bus_bus_mem_read_region_1;
t->dbs_rr_2 = g1bus_bus_mem_read_region_2;
t->dbs_rr_4 = g1bus_bus_mem_read_region_4;
t->dbs_wr_1 = g1bus_bus_mem_write_region_1;
t->dbs_wr_2 = g1bus_bus_mem_write_region_2;
t->dbs_wr_4 = g1bus_bus_mem_write_region_4;
t->dbs_sr_4 = g1bus_bus_mem_set_region_4;
}
int
g1bus_bus_mem_map(void *v, bus_addr_t addr, bus_size_t size, int flags,
bus_space_handle_t *shp)
{
KASSERT((addr & SH3_PHYS_MASK) == addr);
*shp = SH3_PHYS_TO_P2SEG(addr);
return 0;
}
void
g1bus_bus_mem_unmap(void *v, bus_space_handle_t sh, bus_size_t size)
{
KASSERT(sh >= SH3_P2SEG_BASE && sh <= SH3_P2SEG_END);
/* Nothing to do. */
}
int
g1bus_bus_mem_subregion(void *v, bus_space_handle_t handle, bus_size_t offset,
bus_size_t size, bus_space_handle_t *nhandlep)
{
*nhandlep = handle + offset;
return 0;
}
paddr_t
g1bus_bus_mem_mmap(void *v, bus_addr_t addr, off_t offset, int prot, int flags)
{
/* XXX not implemented */
return -1;
}
uint8_t
g1bus_bus_mem_read_1(void *v, bus_space_handle_t sh, bus_size_t off)
{
uint8_t rv;
rv = *(volatile uint8_t *)(sh + off);
return rv;
}
uint16_t
g1bus_bus_mem_read_2(void *v, bus_space_handle_t sh, bus_size_t off)
{
uint16_t rv;
rv = *(volatile uint16_t *)(sh + off);
return rv;
}
uint32_t
g1bus_bus_mem_read_4(void *v, bus_space_handle_t sh, bus_size_t off)
{
uint32_t rv;
rv = *(volatile uint32_t *)(sh + off);
return rv;
}
void
g1bus_bus_mem_write_1(void *v, bus_space_handle_t sh, bus_size_t off,
uint8_t val)
{
*(volatile uint8_t *)(sh + off) = val;
}
void
g1bus_bus_mem_write_2(void *v, bus_space_handle_t sh, bus_size_t off,
uint16_t val)
{
*(volatile uint16_t *)(sh + off) = val;
}
void
g1bus_bus_mem_write_4(void *v, bus_space_handle_t sh, bus_size_t off,
uint32_t val)
{
*(volatile uint32_t *)(sh + off) = val;
}
void
g1bus_bus_mem_read_multi_1(void *v, bus_space_handle_t sh,
bus_size_t off, uint8_t *addr, bus_size_t len)
{
volatile const uint8_t *baddr = (uint8_t *)(sh + off);
while (len--)
*addr++ = *baddr;
}
void
g1bus_bus_mem_read_multi_2(void *v, bus_space_handle_t sh,
bus_size_t off, uint16_t *addr, bus_size_t len)
{
volatile uint16_t *baddr = (uint16_t *)(sh + off);
while (len--)
*addr++ = *baddr;
}
void
g1bus_bus_mem_write_multi_1(void *v, bus_space_handle_t sh,
bus_size_t off, const uint8_t *addr, bus_size_t len)
{
volatile uint8_t *baddr = (uint8_t *)(sh + off);
while (len--)
*baddr = *addr++;
}
void
g1bus_bus_mem_write_multi_2(void *v, bus_space_handle_t sh,
bus_size_t off, const uint16_t *addr, bus_size_t len)
{
volatile uint16_t *baddr = (uint16_t *)(sh + off);
while (len--)
*baddr = *addr++;
}
void
g1bus_bus_mem_read_region_1(void *v, bus_space_handle_t sh, bus_size_t off,
uint8_t *addr, bus_size_t len)
{
volatile const uint8_t *baddr = (uint8_t *)(sh + off);
while (len--)
*addr++ = *baddr++;
}
void
g1bus_bus_mem_read_region_2(void *v, bus_space_handle_t sh, bus_size_t off,
uint16_t *addr, bus_size_t len)
{
volatile const uint16_t *baddr = (uint16_t *)(sh + off);
while (len--)
*addr++ = *baddr++;
}
void
g1bus_bus_mem_read_region_4(void *v, bus_space_handle_t sh, bus_size_t off,
uint32_t *addr, bus_size_t len)
{
volatile const uint32_t *baddr = (uint32_t *)(sh + off);
while (len--)
*addr++ = *baddr++;
}
void
g1bus_bus_mem_write_region_1(void *v, bus_space_handle_t sh, bus_size_t off,
const uint8_t *addr, bus_size_t len)
{
volatile uint8_t *baddr = (uint8_t *)(sh + off);
while (len--)
*baddr++ = *addr++;
}
void
g1bus_bus_mem_write_region_2(void *v, bus_space_handle_t sh, bus_size_t off,
const uint16_t *addr, bus_size_t len)
{
volatile uint16_t *baddr = (uint16_t *)(sh + off);
while (len--)
*baddr++ = *addr++;
}
void
g1bus_bus_mem_write_region_4(void *v, bus_space_handle_t sh, bus_size_t off,
const uint32_t *addr, bus_size_t len)
{
volatile uint32_t *baddr = (uint32_t *)(sh + off);
while (len--)
*baddr++ = *addr++;
}
void
g1bus_bus_mem_set_region_4(void *v, bus_space_handle_t sh, bus_size_t off,
uint32_t val, bus_size_t len)
{
volatile uint32_t *baddr = (uint32_t *)(sh + off);
while (len--)
*baddr++ = val;
}

View File

@ -0,0 +1,64 @@
/* $NetBSD: g1busvar.h,v 1.1 2016/12/29 11:49:05 tsutsui Exp $ */
/*-
* Copyright (c) 2001 Marcus Comstedt
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Marcus Comstedt.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _DREAMCAST_G1BUSVAR_H_
#define _DREAMCAST_G1BUSVAR_H_
#include <sys/bus.h>
/*
* G1 driver attach arguments
*/
struct g1bus_attach_args {
bus_space_tag_t ga_memt;
};
/*
* Per-device G1 variables
*/
struct g1busdev {
device_t gd_dev; /* back pointer to generic */
};
/*
* G1 master bus
*/
struct g1bus_softc {
device_t sc_dev; /* base device */
struct dreamcast_bus_space sc_memt;
};
void g1bus_bus_mem_init(struct g1bus_softc *);
#endif /* _DREAMCAST_G1BUSVAR_H_ */

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@ -0,0 +1,605 @@
/* $NetBSD: gdrom.c,v 1.1 2016/12/29 11:49:05 tsutsui Exp $ */
/*-
* Copyright (c) 2001 Marcus Comstedt
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Marcus Comstedt.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* WIP gdrom driver using MI ATA/ATAPI drivers.
*
* XXX: Still not functional because GD-ROM driver does not generate
* XXX: interrupts after ATAPI command packet xfers and such quirks
* XXX: need to be handled in MI scsipi layer.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: gdrom.c,v 1.1 2016/12/29 11:49:05 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/buf.h>
#include <sys/bufq.h>
#include <sys/ioctl.h>
#include <sys/fcntl.h>
#include <sys/disklabel.h>
#include <sys/disk.h>
#include <sys/cdio.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/scsiio.h>
#include <dev/scsipi/scsi_spc.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsipi_cd.h>
#include <dev/scsipi/scsipi_disk.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsi_disk.h>
#include <dev/scsipi/scsipiconf.h>
#include <dev/scsipi/scsipi_base.h>
#include "ioconf.h"
struct gdrom_softc {
device_t sc_dev; /* generic device info */
struct disk sc_dk; /* generic disk info */
struct bufq_state *sc_bufq; /* device buffer queue */
struct buf curbuf; /* state of current I/O operation */
kmutex_t sc_lock;
struct scsipi_periph *sc_periph;
bool is_open;
bool is_busy;
bool is_active;
int openpart_start; /* start sector of currently open partition */
int cmd_active;
void *cmd_result_buf; /* where to store result data (16 bit aligned) */
int cmd_result_size; /* number of bytes allocated for buf */
int cmd_actual; /* number of bytes actually read */
int cmd_cond; /* resulting condition of command */
};
struct gd_toc {
unsigned int entry[99];
unsigned int first, last;
unsigned int leadout;
};
static int gdrommatch(device_t, cfdata_t, void *);
static void gdromattach(device_t, device_t, void *);
#if 0
static int gdrom_command_sense(struct gdrom_softc *, void *, void *,
unsigned int, int *);
#endif
static int gdrom_read_toc(struct gdrom_softc *, struct gd_toc *);
static int gdrom_read_sectors(struct gdrom_softc *, struct buf *);
static int gdrom_mount_disk(struct gdrom_softc *);
static void gdrom_start(struct scsipi_periph *);
static void gdrom_done(struct scsipi_xfer *, int);
static const struct scsipi_inquiry_pattern gdrom_patterns[] = {
{T_DIRECT, T_FIXED,
"", "DCR-MOD", ""},
};
static dev_type_open(gdromopen);
static dev_type_close(gdromclose);
static dev_type_read(gdromread);
static dev_type_write(gdromwrite);
static dev_type_ioctl(gdromioctl);
static dev_type_strategy(gdromstrategy);
const struct bdevsw gdrom_bdevsw = {
.d_open = gdromopen,
.d_close = gdromclose,
.d_strategy = gdromstrategy,
.d_ioctl = gdromioctl,
.d_dump = nodump,
.d_psize = nosize,
.d_discard = nodiscard,
.d_flag = D_DISK
};
const struct cdevsw gdrom_cdevsw = {
.d_open = gdromopen,
.d_close = gdromclose,
.d_read = gdromread,
.d_write = gdromwrite,
.d_ioctl = gdromioctl,
.d_stop = nostop,
.d_tty = notty,
.d_poll = nopoll,
.d_mmap = nommap,
.d_kqfilter = nokqfilter,
.d_discard = nodiscard,
.d_flag = D_DISK
};
CFATTACH_DECL_NEW(gdrom, sizeof(struct gdrom_softc),
gdrommatch, gdromattach, NULL, NULL);
struct dkdriver gdromdkdriver = {
.d_strategy = gdromstrategy
};
static const struct scsipi_periphsw gdrom_switch = {
NULL/*gdrom_interpret_sense*/, /* use our error handler first */
gdrom_start, /* we have a queue, which is started by this */
NULL, /* we do not have an async handler */
gdrom_done, /* deal with stats at interrupt time */
};
#define GDROMDEBUG
#ifdef GDROMDEBUG
int gdrom_debug = 0; /* patchable */
#define GDROM_DPRINTF(x) if (gdrom_debug) printf x
#else
#define GDROM_DPRINTF(x) /**/
#endif
#define TOC_LBA(n) ((n) & 0xffffff00)
#define TOC_ADR(n) ((n) & 0x0f)
#define TOC_CTRL(n) (((n) & 0xf0) >> 4)
#define TOC_TRACK(n) (((n) & 0x0000ff00) >> 8)
#if 0
int gdrom_command_sense(struct gdrom_softc *sc, void *req, void *buf,
unsigned int nbyt, int *resid)
{
/*
* 76543210 76543210
* 0 0x13 -
* 2 - bufsz(hi)
* 4 bufsz(lo) -
* 6 - -
* 8 - -
* 10 - -
*/
uint16_t sense_data[5];
uint8_t cmd[12];
int cond, sense_key, sense_specific;
cond = scsipi_command(sc->sc_periph, req, 12, buf, nbyt,
4, 3000, NULL, XS_CTL_DATA_IN);
if (resid != NULL)
*resid = nbyt;
if (cond < 0) {
GDROM_DPRINTF(("GDROM: not ready (2:58)\n"));
return EIO;
}
if ((cond & 1) == 0) {
GDROM_DPRINTF(("GDROM: no sense. 0:0\n"));
return 0;
}
memset(cmd, 0, sizeof(cmd));
cmd[0] = 0x13;
cmd[4] = sizeof(sense_data);
scsipi_command(sc->sc_periph, (void *)cmd, sizeof(cmd),
(void *)sense_data, sizeof(sense_data),
4, 3000, NULL, XS_CTL_DATA_IN);
sense_key = sense_data[1] & 0xf;
sense_specific = sense_data[4];
if (sense_key == 11 && sense_specific == 0) {
GDROM_DPRINTF(("GDROM: aborted (ignored). 0:0\n"));
return 0;
}
GDROM_DPRINTF(("GDROM: SENSE %d:", sense_key));
GDROM_DPRINTF(("GDROM: %d\n", sense_specific));
return sense_key == 0 ? 0 : EIO;
}
#endif
int gdrom_read_toc(struct gdrom_softc *sc, struct gd_toc *toc)
{
/*
* 76543210 76543210
* 0 0x14 -
* 2 - bufsz(hi)
* 4 bufsz(lo) -
* 6 - -
* 8 - -
* 10 - -
*/
uint8_t cmd[12];
GDROM_DPRINTF(("%s: called\n", __func__));
memset(cmd, 0, sizeof(cmd));
cmd[0] = 0x14;
cmd[3] = sizeof(struct gd_toc) >> 8;
cmd[4] = sizeof(struct gd_toc) & 0xff;
return scsipi_command(sc->sc_periph, (void *)cmd, 12,
(void *)toc, sizeof(struct gd_toc),
4, 3000, NULL, XS_CTL_DATA_IN);
}
int gdrom_read_sectors(struct gdrom_softc *sc, struct buf *bp)
{
/*
* 76543210 76543210
* 0 0x30 datafmt
* 2 sec(hi) sec(mid)
* 4 sec(lo) -
* 6 - -
* 8 cnt(hi) cnt(mid)
* 10 cnt(lo) -
*/
uint8_t cmd[12];
void *buf;
int sector, cnt;
int cond;
GDROM_DPRINTF(("%s: called\n", __func__));
buf = bp->b_data;
sector = bp->b_rawblkno;
cnt = bp->b_bcount >> 11;
memset(cmd, 0, sizeof(cmd));
cmd[0] = 0x30;
cmd[1] = 0x20;
cmd[2] = sector >> 16;
cmd[3] = sector >> 8;
cmd[4] = sector;
cmd[8] = cnt >> 16;
cmd[9] = cnt >> 8;
cmd[10] = cnt;
cond = scsipi_command(sc->sc_periph, (void *)cmd, 12,
(void *)buf, bp->b_bcount,
4, 3000, bp, XS_CTL_DATA_IN);
GDROM_DPRINTF(("%s: cond = %d\n", __func__, cond));
return cond;
}
int gdrom_mount_disk(struct gdrom_softc *sc)
{
/*
* 76543210 76543210
* 0 0x70 -
* 2 0x1f -
* 4 - -
* 6 - -
* 8 - -
* 10 - -
*/
uint8_t cmd[12];
int cond;
GDROM_DPRINTF(("%s: called\n", __func__));
memset(cmd, 0, sizeof(cmd));
cmd[0] = 0x70;
cmd[2] = 0x1f;
cond = scsipi_command(sc->sc_periph, (void *)cmd, 12, NULL, 0,
4, 3000, NULL, 0);
GDROM_DPRINTF(("%s: cond = %d\n", __func__, cond));
return cond;
}
int
gdrommatch(device_t parent, cfdata_t cf, void *aux)
{
struct scsipibus_attach_args *sa = aux;
int priority;
(void)scsipi_inqmatch(&sa->sa_inqbuf,
gdrom_patterns, __arraycount(gdrom_patterns),
sizeof(gdrom_patterns[0]), &priority);
if (priority > 0) {
/* beat generic direct fixed device */
priority = 255;
}
return priority;
}
void
gdromattach(device_t parent, device_t self, void *aux)
{
struct gdrom_softc *sc;
struct scsipibus_attach_args *sa;
struct scsipi_periph *periph;
sc = device_private(self);
sa = aux;
periph = sa->sa_periph;
sc->sc_dev = self;
sc->sc_periph = periph;
periph->periph_dev = sc->sc_dev;
periph->periph_switch = &gdrom_switch;
mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
bufq_alloc(&sc->sc_bufq, "disksort", BUFQ_SORT_RAWBLOCK);
/*
* Initialize and attach the disk structure.
*/
disk_init(&sc->sc_dk, device_xname(self), &gdromdkdriver);
disk_attach(&sc->sc_dk);
aprint_normal("\n");
aprint_naive("\n");
}
int
gdromopen(dev_t dev, int flags, int devtype, struct lwp *l)
{
struct gdrom_softc *sc;
int s, error, unit, cnt;
struct gd_toc toc;
GDROM_DPRINTF(("%s: called\n", __func__));
unit = DISKUNIT(dev);
sc = device_lookup_private(&gdrom_cd, unit);
if (sc == NULL)
return ENXIO;
if (sc->is_open)
return EBUSY;
s = splbio();
while (sc->is_busy)
tsleep(&sc->is_busy, PRIBIO, "gdbusy", 0);
sc->is_busy = true;
splx(s);
for (cnt = 0; cnt < 1; cnt++)
if ((error = gdrom_mount_disk(sc)) == 0)
break;
if (error == 0)
error = gdrom_read_toc(sc, &toc);
sc->is_busy = false;
wakeup(&sc->is_busy);
if (error != 0)
return error;
sc->is_open = true;
sc->openpart_start = 150;
GDROM_DPRINTF(("%s: open OK\n", __func__));
return 0;
}
int
gdromclose(dev_t dev, int flags, int devtype, struct lwp *l)
{
struct gdrom_softc *sc;
int unit;
GDROM_DPRINTF(("%s: called\n", __func__));
unit = DISKUNIT(dev);
sc = device_lookup_private(&gdrom_cd, unit);
sc->is_open = false;
return 0;
}
void
gdromstrategy(struct buf *bp)
{
struct gdrom_softc *sc;
struct scsipi_periph *periph;
int s, unit;
GDROM_DPRINTF(("%s: called\n", __func__));
unit = DISKUNIT(bp->b_dev);
sc = device_lookup_private(&gdrom_cd, unit);
periph = sc->sc_periph;
if (bp->b_bcount == 0)
goto done;
bp->b_rawblkno = bp->b_blkno / (2048 / DEV_BSIZE) + sc->openpart_start;
GDROM_DPRINTF(("%s: read_sectors(%p, %lld, %d) [%d bytes]\n", __func__,
bp->b_data, bp->b_rawblkno,
bp->b_bcount >> 11, bp->b_bcount));
s = splbio();
bufq_put(sc->sc_bufq, bp);
splx(s);
if (!sc->is_active)
gdrom_start(periph);
return;
done:
bp->b_resid = bp->b_bcount;
biodone(bp);
}
void
gdrom_start(struct scsipi_periph *periph)
{
struct gdrom_softc *sc = device_private(periph->periph_dev);
struct buf *bp;
int error, s;
sc->is_active = true;
for (;;) {
s = splbio();
bp = bufq_get(sc->sc_bufq);
if (bp == NULL) {
splx(s);
break;
}
while (sc->is_busy)
tsleep(&sc->is_busy, PRIBIO, "gdbusy", 0);
sc->is_busy = true;
disk_busy(&sc->sc_dk);
splx(s);
error = gdrom_read_sectors(sc, bp);
bp->b_error = error;
if (error != 0)
bp->b_resid = bp->b_bcount;
sc->is_busy = false;
wakeup(&sc->is_busy);
s = splbio();
disk_unbusy(&sc->sc_dk, bp->b_bcount - bp->b_resid,
(bp->b_flags & B_READ) != 0);
splx(s);
biodone(bp);
}
sc->is_active = false;
}
void
gdrom_done(struct scsipi_xfer *xs, int error)
{
GDROM_DPRINTF(("%s: called\n", __func__));
}
int
gdromioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
{
struct gdrom_softc *sc;
int unit, error;
GDROM_DPRINTF(("%s: cmd %lx\n", __func__, cmd));
unit = DISKUNIT(dev);
sc = device_lookup_private(&gdrom_cd, unit);
switch (cmd) {
case CDIOREADMSADDR: {
int s, track, sessno = *(int *)addr;
struct gd_toc toc;
if (sessno != 0)
return EINVAL;
s = splbio();
while (sc->is_busy)
tsleep(&sc->is_busy, PRIBIO, "gdbusy", 0);
sc->is_busy = true;
splx(s);
error = gdrom_read_toc(sc, &toc);
sc->is_busy = false;
wakeup(&sc->is_busy);
if (error != 0)
return error;
#ifdef GDROMDEBUGTOC
{ /* Dump the GDROM TOC */
unsigned char *ptr = (unsigned char *)&toc;
int i;
printf("gdrom: TOC\n");
for(i = 0; i < sizeof(toc); ++i) {
printf("%02x", *ptr++);
if( i%32 == 31)
printf("\n");
else if( i%4 == 3)
printf(",");
}
printf("\n");
}
#endif
for (track = TOC_TRACK(toc.last);
track >= TOC_TRACK(toc.first);
--track) {
if (track < 1 || track > 100)
return ENXIO;
if (TOC_CTRL(toc.entry[track - 1]))
break;
}
#ifdef GDROMDEBUGTOC
printf("gdrom: Using track %d, LBA %u\n", track,
TOC_LBA(toc.entry[track - 1]));
#endif
*(int *)addr = htonl(TOC_LBA(toc.entry[track - 1])) -
sc->openpart_start;
return 0;
}
default:
return ENOTTY;
}
#ifdef DIAGNOSTIC
panic("gdromioctl: impossible");
#endif
}
int
gdromread(dev_t dev, struct uio *uio, int flags)
{
GDROM_DPRINTF(("%s: called\n", __func__));
return physio(gdromstrategy, NULL, dev, B_READ, minphys, uio);
}
int
gdromwrite(dev_t dev, struct uio *uio, int flags)
{
return EROFS;
}

View File

@ -0,0 +1,217 @@
/* $NetBSD: wdc_g1.c,v 1.1 2016/12/29 11:49:05 tsutsui Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum and by Onno van der Linden.
*
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include "opt_ata.h" /* for ATADEBUG */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/bus.h>
#include <machine/intr.h>
#include <machine/sysasicvar.h>
#include <arch/dreamcast/dev/g1/g1busvar.h>
#include <dev/ata/atavar.h>
#include <dev/ic/wdcvar.h>
#include <dev/ata/atareg.h>
#define WDC_G1_CMD_ADDR 0x005f7080
#define WDC_G1_REG_NPORTS 8
#define WDC_G1_CTL_ADDR 0x005f7018
#define WDC_G1_AUXREG_NPORTS 1
struct wdc_g1_softc {
struct wdc_softc sc_wdcdev;
struct ata_channel *wdc_chanlist[1];
struct ata_channel ata_channel;
struct ata_queue wdc_chqueue;
struct wdc_regs wdc_regs;
void *sc_ih;
int sc_irq;
};
static int wdc_g1_probe(device_t, cfdata_t, void *);
static void wdc_g1_attach(device_t, device_t, void *);
static void wdc_g1_do_reset(struct ata_channel *, int);
static int wdc_g1_intr(void *);
CFATTACH_DECL_NEW(wdc_g1bus, sizeof(struct wdc_g1_softc),
wdc_g1_probe, wdc_g1_attach, NULL, NULL);
static int
wdc_g1_probe(device_t parent, cfdata_t cf, void *aux)
{
struct ata_channel ch;
struct g1bus_attach_args *ga = aux;
struct wdc_softc wdc;
struct wdc_regs wdr;
int result = 0, i;
#ifdef ATADEBUG
struct device dev;
#endif
*((volatile uint32_t *)0xa05f74e4) = 0x1fffff;
for (i = 0; i < 0x200000 / 4; i++)
(void)((volatile uint32_t *)0xa0000000)[i];
memset(&wdc, 0, sizeof(wdc));
memset(&ch, 0, sizeof(ch));
ch.ch_atac = &wdc.sc_atac;
wdc.reset = wdc_g1_do_reset;
wdc.regs = &wdr;
wdr.cmd_iot = ga->ga_memt;
if (bus_space_map(wdr.cmd_iot, WDC_G1_CMD_ADDR,
WDC_G1_REG_NPORTS * 4, 0, &wdr.cmd_baseioh))
goto out;
for (i = 0; i < WDC_G1_REG_NPORTS; i++) {
if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh, i * 4,
i == 0 ? 2 : 1, &wdr.cmd_iohs[i]) != 0)
goto outunmap;
}
wdc_init_shadow_regs(&ch);
wdr.ctl_iot = ga->ga_memt;
if (bus_space_map(wdr.ctl_iot, WDC_G1_CTL_ADDR,
WDC_G1_AUXREG_NPORTS, 0, &wdr.ctl_ioh))
goto outunmap;
#ifdef ATADEBUG
/* fake up device name for ATADEBUG_PRINT() with DEBUG_PROBE */
memset(&dev, 0, sizeof(dev));
strncat(dev.dv_xname, "wdc(g1probe)", sizeof(dev.dv_xname));
wdc.sc_atac.atac_dev = &dev;
#endif
result = wdcprobe(&ch);
bus_space_unmap(wdr.ctl_iot, wdr.ctl_ioh, WDC_G1_AUXREG_NPORTS);
outunmap:
bus_space_unmap(wdr.cmd_iot, wdr.cmd_baseioh, WDC_G1_REG_NPORTS);
out:
return result;
}
static void
wdc_g1_attach(struct device *parent, struct device *self, void *aux)
{
struct wdc_g1_softc *sc = device_private(self);
struct wdc_regs *wdr;
struct g1bus_attach_args *ga = aux;
int i;
sc->sc_wdcdev.sc_atac.atac_dev = self;
sc->sc_wdcdev.regs = wdr = &sc->wdc_regs;
wdr->cmd_iot = ga->ga_memt;
wdr->ctl_iot = ga->ga_memt;
if (bus_space_map(wdr->cmd_iot, WDC_G1_CMD_ADDR,
WDC_G1_REG_NPORTS * 4, 0, &wdr->cmd_baseioh) ||
bus_space_map(wdr->ctl_iot, WDC_G1_CTL_ADDR,
WDC_G1_AUXREG_NPORTS, 0, &wdr->ctl_ioh)) {
aprint_error(": couldn't map registers\n");
return;
}
for (i = 0; i < WDC_G1_REG_NPORTS; i++) {
if (bus_space_subregion(wdr->cmd_iot,
wdr->cmd_baseioh, i * 4, i == 0 ? 2 : 1,
&wdr->cmd_iohs[i]) != 0) {
aprint_error(": couldn't subregion registers\n");
return;
}
}
sc->sc_wdcdev.cap |= WDC_CAPABILITY_PREATA;
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16;
sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
sc->wdc_chanlist[0] = &sc->ata_channel;
sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist;
sc->sc_wdcdev.sc_atac.atac_nchannels = 1;
sc->sc_wdcdev.wdc_maxdrives = 2;
sc->sc_wdcdev.reset = wdc_g1_do_reset;
sc->ata_channel.ch_channel = 0;
sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac;
sc->ata_channel.ch_queue = &sc->wdc_chqueue;
wdc_init_shadow_regs(&sc->ata_channel);
aprint_normal(": %s\n", sysasic_intr_string(SYSASIC_IRL9));
sysasic_intr_establish(SYSASIC_EVENT_GDROM, IPL_BIO, SYSASIC_IRL9,
wdc_g1_intr, &sc->ata_channel);
wdcattach(&sc->ata_channel);
}
int
wdc_g1_intr(void *arg)
{
return wdcintr(arg);
}
static void
wdc_g1_do_reset(struct ata_channel *chp, int poll)
{
struct wdc_softc *wdc = CHAN_TO_WDC(chp);
struct wdc_regs *wdr = &wdc->regs[chp->ch_channel];
int s = 0;
if (poll != 0)
s = splbio();
/* master */
bus_space_write_1(wdr->cmd_iot, wdr->cmd_iohs[wd_sdh], 0,
WDSD_IBM);
delay(10); /* 400ns delay */
/* assert SRST, wait for reset to complete */
bus_space_write_1(wdr->ctl_iot, wdr->ctl_ioh, wd_aux_ctlr,
WDCTL_RST | WDCTL_4BIT | WDCTL_IDS);
delay(2000);
(void) bus_space_read_1(wdr->cmd_iot, wdr->cmd_iohs[wd_error], 0);
bus_space_write_1(wdr->ctl_iot, wdr->ctl_ioh, wd_aux_ctlr,
WDCTL_4BIT | WDCTL_IDS);
delay(10); /* 400ns delay */
/* reset GD-ROM at master via ATAPI command */
bus_space_write_1(wdr->cmd_iot, wdr->cmd_iohs[wd_sdh], 0,
WDSD_IBM);
bus_space_write_1(wdr->cmd_iot, wdr->cmd_iohs[wd_command], 0,
ATAPI_SOFT_RESET);
delay(100 * 1000);
if (poll != 0)
splx(s);
}