| 0,0 → 1,140 |
|---|
| /* |
| * Copyright (c) 2006 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - 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. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. |
| */ |
| |
| /** @addtogroup sparc64 |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #ifndef KERN_sparc64_Z8530_H_ |
| #define KERN_sparc64_Z8530_H_ |
| |
| #include <arch/types.h> |
| #include <arch/drivers/kbd.h> |
| |
| #define Z8530_CHAN_A 4 |
| #define Z8530_CHAN_B 0 |
| |
| #define WR0 0 |
| #define WR1 1 |
| #define WR2 2 |
| #define WR3 3 |
| #define WR4 4 |
| #define WR5 5 |
| #define WR6 6 |
| #define WR7 7 |
| #define WR8 8 |
| #define WR9 9 |
| #define WR10 10 |
| #define WR11 11 |
| #define WR12 12 |
| #define WR13 13 |
| #define WR14 14 |
| #define WR15 15 |
| |
| #define RR0 0 |
| #define RR1 1 |
| #define RR2 2 |
| #define RR3 3 |
| #define RR8 8 |
| #define RR10 10 |
| #define RR12 12 |
| #define RR13 13 |
| #define RR14 14 |
| #define RR15 15 |
| |
| /* Write Register 0 */ |
| #define WR0_TX_IP_RST (0x5<<3) /** Reset pending TX interrupt. */ |
| #define WR0_ERR_RST (0x6<<3) |
| |
| /* Write Register 1 */ |
| #define WR1_RID (0x0<<3) /** Receive Interrupts Disabled. */ |
| #define WR1_RIFCSC (0x1<<3) /** Receive Interrupt on First Character or Special Condition. */ |
| #define WR1_IARCSC (0x2<<3) /** Interrupt on All Receive Characters or Special Conditions. */ |
| #define WR1_RISC (0x3<<3) /** Receive Interrupt on Special Condition. */ |
| #define WR1_PISC (0x1<<2) /** Parity Is Special Condition. */ |
| |
| /* Write Register 3 */ |
| #define WR3_RX_ENABLE (0x1<<0) /** Rx Enable. */ |
| #define WR3_RX8BITSCH (0x3<<6) /** 8-bits per character. */ |
| |
| /* Write Register 9 */ |
| #define WR9_MIE (0x1<<3) /** Master Interrupt Enable. */ |
| |
| /* Read Register 0 */ |
| #define RR0_RCA (0x1<<0) /** Receive Character Available. */ |
| |
| /** Structure representing the z8530 device. */ |
| typedef struct { |
| devno_t devno; |
| volatile uint8_t *reg; /** Memory mapped registers of the z8530. */ |
| } z8530_t; |
| |
| static inline void z8530_write(z8530_t *dev, index_t chan, uint8_t reg, uint8_t val) |
| { |
| /* |
| * Registers 8-15 will automatically issue the Point High |
| * command as their bit 3 is 1. |
| */ |
| dev->reg[WR0+chan] = reg; /* select register */ |
| dev->reg[WR0+chan] = val; /* write value */ |
| } |
| |
| static inline void z8530_write_a(z8530_t *dev, uint8_t reg, uint8_t val) |
| { |
| z8530_write(dev, Z8530_CHAN_A, reg, val); |
| } |
| static inline void z8530_write_b(z8530_t *dev, uint8_t reg, uint8_t val) |
| { |
| z8530_write(dev, Z8530_CHAN_B, reg, val); |
| } |
| |
| static inline uint8_t z8530_read(z8530_t *dev, index_t chan, uint8_t reg) |
| { |
| /* |
| * Registers 8-15 will automatically issue the Point High |
| * command as their bit 3 is 1. |
| */ |
| dev->reg[WR0+chan] = reg; /* select register */ |
| return dev->reg[WR0+chan]; |
| } |
| |
| static inline uint8_t z8530_read_a(z8530_t *dev, uint8_t reg) |
| { |
| return z8530_read(dev, Z8530_CHAN_A, reg); |
| } |
| static inline uint8_t z8530_read_b(z8530_t *dev, uint8_t reg) |
| { |
| return z8530_read(dev, Z8530_CHAN_B, reg); |
| } |
| |
| #endif |
| |
| /** @} |
| */ |