/*
 * JR-IDE Project
 * - (c) 2017 Alan Hightower
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __JRIDE_H__
#define __JRIDE_H__

#if JRIDE_ISA

#define JRIDE_ROM_WINDOW_SIZE   0x4000
#define JRIDE_ROM_RANGE_START   0xc8000
#define JRIDE_ROM_RANGE_END     0xe0000

#define JRIDE_FLASH_PAGE_LOG2   13
#define JRIDE_FLASH_RANGE_START 0xc8000
#define JRIDE_FLASH_RANGE_END   0xe0000

#define JRIDE_ROM_REG_BASE      (15 * 1024)
#define JRIDE_IDE_DATA_WIN      (JRIDE_ROM_REG_BASE + 0)
#define JRIDE_IDE_REG_BASE      (JRIDE_ROM_REG_BASE + 512)
#define JRIDE_FLASH_BASE_REG    (JRIDE_ROM_REG_BASE + 512 + 16)
#define JRIDE_FLASH_PAGE_REG    (JRIDE_ROM_REG_BASE + 512 + 17)

#else // PCjr - default

#define JRIDE_ROM_WINDOW_SIZE   0x4000
#define JRIDE_ROM_RANGE_START   0xc0000
#define JRIDE_ROM_RANGE_END     0xd0000

#define JRIDE_FLASH_PAGE_LOG2   14
#define JRIDE_FLASH_RANGE_START 0xc0000
#define JRIDE_FLASH_RANGE_END   0xd0000

#define JRIDE_ROM_REG_BASE      ((14 * 1024) + 512)
#define JRIDE_IDE_DATA_WIN      (JRIDE_ROM_REG_BASE + 0)
#define JRIDE_IDE_REG_BASE      (JRIDE_ROM_REG_BASE + 512)
#define JRIDE_RAM_MAP_REG       (JRIDE_ROM_REG_BASE + 512 + 16)
#define JRIDE_FLASH_MAP_REG     (JRIDE_ROM_REG_BASE + 512 + 17)
#define JRIDE_SCRATCH_RAM       (JRIDE_ROM_REG_BASE + 512 + 18)

#define JRIDE_POST_DATA_PORT    0x10
#define JRIDE_POST_CTRL_PORT    0x72
#define JRIDE_RTC_ADDR_PORT     0x70
#define JRIDE_RTC_DATA_PORT     0x71

#endif // 'ISA/PCjr

#define JRIDE_FLASH_PAGE_SIZE   (1 << JRIDE_FLASH_PAGE_LOG2)
#define JRIDE_FLASH_PAGE_MASK   (JRIDE_FLASH_PAGE_SIZE - 1)

#define IDE_REG_ERROR         (1) // R
#define IDE_REG_FEATURE       (1) // W
#define IDE_REG_SEC_COUNT     (2)
#define IDE_REG_ADDR_SEC      (3)
#define IDE_REG_ADDR_CYL_L    (4)
#define IDE_REG_ADDR_CYL_H    (5)
#define IDE_REG_ADDR_HEAD     (6)
#define IDE_REG_STATUS        (7) // R
#define IDE_REG_COMMAND       (7) // W

#define IDE_REG_XTIDE_V1      (8) // Conflict with XT-IDEv1/2 latch reg
#define IDE_REG_UART_DATA     (9)
#define IDE_REG_UART_STS     (10) // R
#define IDE_REG_UART_SECR    (11)

#define IDE_REG_ALT_STATUS   (14)
#define IDE_REG_ADDRESS      (15)


#endif