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Diffstat (limited to 'sys/powerpc/powermac/cudavar.h')
| -rw-r--r-- | sys/powerpc/powermac/cudavar.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/sys/powerpc/powermac/cudavar.h b/sys/powerpc/powermac/cudavar.h new file mode 100644 index 000000000000..885ef5d2c231 --- /dev/null +++ b/sys/powerpc/powermac/cudavar.h @@ -0,0 +1,110 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 2006 Michael Lorenz + * Copyright (c) 2008 Nathan Whitehorn + * 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. 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 _POWERPC_CUDAVAR_H_ +#define _POWERPC_CUDAVAR_H_ + +#define CUDA_DEVSTR "Apple CUDA I/O Controller" +#define CUDA_MAXPACKETS 10 + +/* Cuda addresses */ +#define CUDA_ADB 0 +#define CUDA_PSEUDO 1 +#define CUDA_ERROR 2 /* error codes? */ +#define CUDA_TIMER 3 +#define CUDA_POWER 4 +#define CUDA_IIC 5 /* XXX ??? */ +#define CUDA_PMU 6 +#define CUDA_ADB_QUERY 7 + +/* Cuda commands */ +#define CMD_AUTOPOLL 1 +#define CMD_READ_RTC 3 +#define CMD_WRITE_RTC 9 +#define CMD_POWEROFF 10 +#define CMD_RESET 17 +#define CMD_IIC 34 + +/* Cuda state codes */ +#define CUDA_NOTREADY 0x1 /* has not been initialized yet */ +#define CUDA_IDLE 0x2 /* the bus is currently idle */ +#define CUDA_OUT 0x3 /* sending out a command */ +#define CUDA_IN 0x4 /* receiving data */ +#define CUDA_POLLING 0x5 /* polling - II only */ + +struct cuda_packet { + uint8_t len; + uint8_t type; + + uint8_t data[253]; + STAILQ_ENTRY(cuda_packet) pkt_q; +}; + +STAILQ_HEAD(cuda_pktq, cuda_packet); + +struct cuda_softc { + device_t sc_dev; + int sc_memrid; + struct resource *sc_memr; + int sc_irqrid; + struct resource *sc_irq; + void *sc_ih; + + struct mtx sc_mutex; + + device_t adb_bus; + + int sc_node; + volatile int sc_state; + int sc_waiting; + int sc_polling; + int sc_iic_done; + volatile int sc_autopoll; + uint32_t sc_rtc; + + int sc_i2c_read_len; + + /* internal buffers */ + uint8_t sc_in[256]; + uint8_t sc_out[256]; + int sc_sent; + int sc_out_length; + int sc_received; + + struct cuda_packet sc_pkts[CUDA_MAXPACKETS]; + struct cuda_pktq sc_inq; + struct cuda_pktq sc_outq; + struct cuda_pktq sc_freeq; +}; + +#endif /* _POWERPC_CUDAVAR_H_ */ |