Adapt the DTK FDC to 86Box
Rewrote few parts so the DTK FDC is more adaptive on 86Box standards.
This commit is contained in:
Panagiotis
GitHub
@@ -21,7 +21,7 @@
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* or without modification, are permitted provided that the
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* following conditions are met:
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*
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* 1. Redistributions of source code must retain the entire
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* 1. Redistributions of source code must retain the entire
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* above notice, this list of conditions and the following
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* disclaimer.
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*
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@@ -47,9 +47,6 @@
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define _LARGEFILE_SOURCE
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#define _LARGEFILE64_SOURCE
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#define _GNU_SOURCE
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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@@ -61,57 +58,45 @@
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#include <86box/device.h>
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#include <86box/io.h>
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#include <86box/mem.h>
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#include <86box/pic.h>
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#include <86box/rom.h>
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#include <86box/machine.h>
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#include <86box/timer.h>
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#include <86box/plat.h>
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#include <86box/ui.h>
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#include <86box/fdd.h>
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#include <86box/fdc.h>
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#include <86box/fdc_ext.h>
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#define ROM_PII_151B L"roms/floppy/dtk/pii-151b.rom"
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#define ROM_PII_158B L"roms/floppy/dtk/pii-158b.rom"
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#define ROM_PII_151B L"roms/floppy/dtk/pii-151b.rom"
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#define ROM_PII_158B L"roms/floppy/dtk/pii-158b.rom"
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typedef struct {
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const char *name;
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int type;
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#ifdef ENABLE_PII15XB_LOG
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int pii15xb_do_log = ENABLE_PII15XB_LOG;
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uint32_t bios_addr,
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bios_size;
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rom_t bios_rom;
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fdc_t *fdc;
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} pii_t;
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/* Load and enable a BIOS ROM if we have one, and is enabled. */
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static void
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set_bios(pii_t *dev, wchar_t *fn)
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pii15xb_log(const char *fmt, ...)
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{
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uint32_t temp;
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FILE *fp;
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va_list ap;
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/* Only do this if needed. */
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if ((fn == NULL) || (dev->bios_addr == 0)) return;
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if ((fp = rom_fopen(fn, L"rb")) == NULL) return;
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(void)fseek(fp, 0L, SEEK_END);
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temp = ftell(fp);
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(void)fclose(fp);
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/* Assume 128K, then go down. */
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dev->bios_size = 0x020000;
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while (temp < dev->bios_size)
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dev->bios_size >>= 1;
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/* Create a memory mapping for the space. */
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rom_init(&dev->bios_rom, fn, dev->bios_addr,
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dev->bios_size, dev->bios_size-1, 0, MEM_MAPPING_EXTERNAL);
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if (fdc_do_log)
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{
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va_start(ap, fmt);
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pclog_ex(fmt, ap);
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va_end(ap);
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}
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}
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#else
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#define pii15xb_log(fmt, ...)
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#endif
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typedef struct
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{
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const char *name;
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int type;
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uint32_t bios_addr;
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rom_t bios_rom;
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fdc_t *fdc;
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} pii_t;
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static void
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pii_close(void *priv)
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@@ -121,7 +106,6 @@ pii_close(void *priv)
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free(dev);
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}
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static void *
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pii_init(const device_t *info)
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{
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@@ -133,24 +117,14 @@ pii_init(const device_t *info)
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dev->bios_addr = device_get_config_hex20("bios_addr");
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if (dev->bios_addr != 0x000000) {
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switch (dev->type) {
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case 151:
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set_bios(dev, ROM_PII_151B);
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break;
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case 158:
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set_bios(dev, ROM_PII_158B);
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break;
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}
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}
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if (dev->bios_addr != 0)
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rom_init(&dev->bios_rom, (dev->type == 0x158) ? ROM_PII_158B : ROM_PII_151B, dev->bios_addr, 0x2000, 0x1ffff, 0, MEM_MAPPING_EXTERNAL);
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/* Attach the DP8473 chip. */
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dev->fdc = device_add(&fdc_at_device);
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dev->fdc = device_add(&fdc_at_device); //Our DP8473 emulation is broken. If fixed this has to be changed!
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//pclog("FDC: %s (I/O=%04X, flags=%08x)\n",
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// info->name, dev->fdc->base_address, dev->fdc->flags);
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pii15xb_log("PII15XB: %s (I/O=%04X, flags=%08x)\n", info->name, dev->fdc->base_address, dev->fdc->flags);
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return(dev);
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return (dev);
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}
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static int pii_151b_available(void)
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@@ -163,6 +137,7 @@ static int pii_158_available(void)
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return rom_present(ROM_PII_158B);
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}
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static const device_config_t pii_config[] = {
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{
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"bios_addr", "BIOS address", CONFIG_HEX20, "", 0x0ce000, "", { 0 },
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@@ -193,16 +168,22 @@ const device_t fdc_pii151b_device = {
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"DTK PII-151B (MiniMicro) Floppy Drive Controller",
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DEVICE_ISA,
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151,
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pii_init, pii_close, NULL,
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{ pii_151b_available }, NULL, NULL,
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pii_config
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};
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pii_init,
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pii_close,
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NULL,
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{pii_151b_available},
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NULL,
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NULL,
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pii_config};
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const device_t fdc_pii158b_device = {
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"DTK PII-158B (MiniMicro4) Floppy Drive Controller",
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DEVICE_ISA,
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158,
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pii_init, pii_close, NULL,
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{ pii_158_available }, NULL, NULL,
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pii_config
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};
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pii_init,
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pii_close,
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NULL,
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{pii_158_available},
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NULL,
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NULL,
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pii_config};
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