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freebsd/sys/dev/sr/if_srregs.h

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/*-
* Copyright (c) 1995 - 2001 John Hay.
* Copyright (c) 1996 SDL Communications, Inc.
* 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 author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*
* $FreeBSD$
*/
#ifndef _IF_SRREGS_H_
#define _IF_SRREGS_H_
#define NCHAN 2 /* A HD64570 chip have 2 channels */
#define SR_BUF_SIZ 512
#define SR_TX_BLOCKS 2 /* Sepperate sets of tx buffers */
#define SR_CRD_N2 1
#define SR_CRD_N2PCI 2
/*
* RISCom/N2 ISA card.
*/
#define SRC_IO_SIZ 0x10 /* Actually a lie. It uses a lot more. */
#define SRC_WIN_SIZ 0x00004000
#define SRC_WIN_MSK (SRC_WIN_SIZ - 1)
#define SRC_WIN_SHFT 14
#define SR_FLAGS_NCHAN_MSK 0x0000000F
#define SR_FLAGS_0_CLK_MSK 0x00000030
#define SR_FLAGS_0_EXT_CLK 0x00000000 /* External RX clock shared by TX */
#define SR_FLAGS_0_EXT_SEP_CLK 0x00000010 /* Sepperate external clocks */
#define SR_FLAGS_0_INT_CLK 0x00000020 /* Internal clock */
#define SR_FLAGS_1_CLK_MSK 0x000000C0
#define SR_FLAGS_1_EXT_CLK 0x00000000 /* External RX clock shared by TX */
#define SR_FLAGS_1_EXT_SEP_CLK 0x00000040 /* Sepperate external clocks */
#define SR_FLAGS_1_INT_CLK 0x00000080 /* Internal clock */
#define SR_FLAGS_CLK_SHFT 4
#define SR_FLAGS_CLK_CHAN_SHFT 2
#define SR_FLAGS_EXT_CLK 0x00000000 /* External RX clock shared by TX */
#define SR_FLAGS_EXT_SEP_CLK 0x00000001 /* Sepperate external clocks */
#define SR_FLAGS_INT_CLK 0x00000002 /* Internal clock */
#define SR_PCR 0x00 /* RW, PC Control Register */
#define SR_BAR 0x02 /* RW, Base Address Register */
#define SR_PSR 0x04 /* RW, Page Scan Register */
#define SR_MCR 0x06 /* RW, Modem Control Register */
#define SR_PCR_SCARUN 0x01 /* !Reset */
#define SR_PCR_EN_VPM 0x02 /* Running above 1M */
#define SR_PCR_MEM_WIN 0x04 /* Open memory window */
#define SR_PCR_ISA16 0x08 /* 16 bit ISA mode */
#define SR_PCR_16M_SEL 0xF0 /* A20-A23 Addresses */
#define SR_PSR_PG_SEL 0x1F /* Page 0 - 31 select */
#define SR_PG_MSK 0x1F
#define SR_PSR_WIN_SIZ 0x60 /* Window size select */
#define SR_PSR_WIN_16K 0x00
#define SR_PSR_WIN_32K 0x20
#define SR_PSR_WIN_64K 0x40
#define SR_PSR_WIN_128K 0x60
#define SR_PSR_EN_SCA_DMA 0x80 /* Enable the SCA DMA */
#define SR_MCR_DTR0 0x01 /* Deactivate DTR0 */
#define SR_MCR_DTR1 0x02 /* Deactivate DTR1 */
#define SR_MCR_DSR0 0x04 /* DSR0 Status */
#define SR_MCR_DSR1 0x08 /* DSR1 Status */
#define SR_MCR_TE0 0x10 /* Enable RS422 TXD */
#define SR_MCR_TE1 0x20 /* Enable RS422 TXD */
#define SR_MCR_ETC0 0x40 /* Enable Ext Clock out */
#define SR_MCR_ETC1 0x80 /* Enable Ext Clock out */
/*
* RISCom/N2 PCI card.
*/
#define SR_FECR 0x0200 /* Front End Control Register */
#define SR_FECR_ETC0 0x0001 /* Enable Ext Clock out */
#define SR_FECR_ETC1 0x0002 /* Enable Ext Clock out */
#define SR_FECR_TE0 0x0004 /* Enable RS422 TXD */
#define SR_FECR_TE1 0x0008 /* Enable RS422 TXD */
#define SR_FECR_GPO0 0x0010 /* General Purpose Output */
#define SR_FECR_GPO1 0x0020 /* General Purpose Output */
#define SR_FECR_DTR0 0x0040 /* 0 for active, 1 for inactive */
#define SR_FECR_DTR1 0x0080 /* 0 for active, 1 for inactive */
#define SR_FECR_DSR0 0x0100 /* DSR0 Status */
#define SR_FECR_ID0 0x0E00 /* ID of channel 0 */
#define SR_FECR_DSR1 0x1000 /* DSR1 Status */
#define SR_FECR_ID1 0xE000 /* ID of channel 1 */
#define SR_FE_ID_V35 0x00 /* V.35 Interface */
#define SR_FE_ID_RS232 0x01 /* RS232 Interface */
#define SR_FE_ID_TEST 0x02 /* Test Board */
#define SR_FE_ID_RS422 0x03 /* RS422 Interface */
#define SR_FE_ID_HSSI 0x05 /* HSSI Interface */
#define SR_FE_ID_X21 0x06 /* X.21 Interface */
#define SR_FE_ID_NONE 0x07 /* No card present */
#define SR_FE_ID0_SHFT 9
#define SR_FE_ID1_SHFT 13
/*
* These macros are used to hide the difference between the way the
* ISA N2 cards and the PCI N2 cards access the Hitachi 64570 SCA.
*/
#define SRC_GET8(hc,off) (*hc->src_get8)(hc,(uintptr_t)&off)
#define SRC_GET16(hc,off) (*hc->src_get16)(hc,(uintptr_t)&off)
#define SRC_PUT8(hc,off,d) (*hc->src_put8)(hc,(uintptr_t)&off,d)
#define SRC_PUT16(hc,off,d) (*hc->src_put16)(hc,(uintptr_t)&off,d)
/*
* These macros enable/disable the DPRAM and select the correct
* DPRAM page.
*/
#define SRC_GET_WIN(addr) ((addr >> SRC_WIN_SHFT) & SR_PG_MSK)
#define SRC_SET_ON(hc) sr_outb(hc, SR_PCR, \
SR_PCR_MEM_WIN | sr_inb(hc, SR_PCR))
#define SRC_SET_MEM(hc,win) sr_outb(hc, SR_PSR, SRC_GET_WIN(win) | \
(sr_inb(hc, SR_PSR) & ~SR_PG_MSK))
#define SRC_SET_OFF(hc) sr_outb(hc, SR_PCR, \
~SR_PCR_MEM_WIN & sr_inb(hc, SR_PCR))
/*
* Define the hardware (card information) structure needed to keep
* track of the device itself... There is only one per card.
*/
struct sr_hardc {
struct sr_softc *sc; /* software channels */
int cunit; /* card w/in system */
u_short iobase; /* I/O Base Address */
int cardtype;
int numports; /* # of ports on cd */
int mempages;
u_int memsize; /* DPRAM size: bytes */
u_int winmsk;
vm_offset_t mem_pstart; /* start of buffer */
caddr_t mem_start; /* start of DP RAM */
caddr_t mem_end; /* end of DP RAM */
sca_regs *sca; /* register array */
bus_space_tag_t bt_ioport;
bus_space_tag_t bt_memory;
bus_space_handle_t bh_ioport;
bus_space_handle_t bh_memory;
int rid_ioport;
int rid_memory;
int rid_plx_memory;
int rid_irq;
struct resource* res_ioport; /* resource for port range */
struct resource* res_memory; /* resource for mem range */
struct resource* res_plx_memory;
struct resource* res_irq; /* resource for irq range */
void *intr_cookie;
/*
* We vectorize the following functions to allow re-use between the
* ISA card's needs and those of the PCI card.
*/
void (*src_put8)(struct sr_hardc *hc, u_int off, u_int val);
void (*src_put16)(struct sr_hardc *hc, u_int off, u_int val);
u_int (*src_get8)(struct sr_hardc *hc, u_int off);
u_int (*src_get16)(struct sr_hardc *hc, u_int off);
};
extern devclass_t sr_devclass;
int sr_allocate_ioport(device_t device, int rid, u_long size);
int sr_allocate_irq(device_t device, int rid, u_long size);
int sr_allocate_memory(device_t device, int rid, u_long size);
int sr_allocate_plx_memory(device_t device, int rid, u_long size);
int sr_deallocate_resources(device_t device);
int sr_attach(device_t device);
int sr_detach(device_t device);
#define sr_inb(hc, port) \
bus_space_read_1((hc)->bt_ioport, (hc)->bh_ioport, (port))
#define sr_outb(hc, port, value) \
bus_space_write_1((hc)->bt_ioport, (hc)->bh_ioport, (port), (value))
#define sr_read_fecr(hc) \
bus_space_read_4((hc)->bt_memory, (hc)->bh_memory, SR_FECR)
#define sr_write_fecr(hc, value) \
bus_space_write_4((hc)->bt_memory, (hc)->bh_memory, SR_FECR, (value))
#endif /* _IF_SRREGS_H_ */
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