From 0c997cc4eb922a09a3f3dbacf7b472d26b681085 Mon Sep 17 00:00:00 2001
From: Jasmine Iwanek <jasmine@iwanek.co.uk>
Date: Sat, 8 Feb 2025 19:28:37 -0500
Subject: [PATCH] Add ISA, VLB & PCI second channel IDE devs

---
 src/disk/hdc_ide.c      | 61 +++++++++++++++++++++++++++++++++++++++++
 src/include/86box/hdc.h |  3 ++
 2 files changed, 64 insertions(+)

diff --git a/src/disk/hdc_ide.c b/src/disk/hdc_ide.c
index c5f776b3e..3e1ce39f8 100644
--- a/src/disk/hdc_ide.c
+++ b/src/disk/hdc_ide.c
@@ -2902,6 +2902,25 @@ ide_pnp_config_changed(uint8_t ld, isapnp_device_config_t *config, void *priv)
     }
 }
 
+static void *
+ide_sec_init(const device_t *info)
+{
+    /* Don't claim this channel again if it was already claimed. */
+    if (ide_boards[1])
+        return (NULL);
+
+    ide_board_init(1, HDC_SECONDARY_IRQ, HDC_SECONDARY_BASE, HDC_SECONDARY_SIDE, info->local, info->flags);
+
+    return (ide_boards[1]);
+}
+
+/* Close a standalone IDE unit. */
+static void
+ide_sec_close(UNUSED(void *priv))
+{
+    ide_board_close(1);
+}
+
 static void *
 ide_ter_init(const device_t *info)
 {
@@ -3274,6 +3293,20 @@ const device_t ide_isa_device = {
     .config        = NULL
 };
 
+const device_t ide_isa_sec_device = {
+    .name          = "ISA PC/AT IDE Controller (Secondary)",
+    .internal_name = "ide_isa_sec",
+    .flags         = DEVICE_ISA | DEVICE_AT,
+    .local         = 0,
+    .init          = ide_init,
+    .close         = ide_close,
+    .reset         = ide_reset,
+    .available     = NULL,
+    .speed_changed = NULL,
+    .force_redraw  = NULL,
+    .config        = NULL
+};
+
 const device_t ide_isa_2ch_device = {
     .name          = "ISA PC/AT IDE Controller (Dual-Channel)",
     .internal_name = "ide_isa_2ch",
@@ -3302,6 +3335,20 @@ const device_t ide_vlb_device = {
     .config        = NULL
 };
 
+const device_t ide_vlb_sec_device = {
+    .name          = "VLB IDE Controller (Secondary)",
+    .internal_name = "ide_vlb_sec",
+    .flags         = DEVICE_VLB | DEVICE_AT,
+    .local         = 2,
+    .init          = ide_init,
+    .close         = ide_close,
+    .reset         = ide_reset,
+    .available     = NULL,
+    .speed_changed = NULL,
+    .force_redraw  = NULL,
+    .config        = NULL
+};
+
 const device_t ide_vlb_2ch_device = {
     .name          = "VLB IDE Controller (Dual-Channel)",
     .internal_name = "ide_vlb_2ch",
@@ -3330,6 +3377,20 @@ const device_t ide_pci_device = {
     .config        = NULL
 };
 
+const device_t ide_pci_sec_device = {
+    .name          = "PCI IDE Controller (Secondary)",
+    .internal_name = "ide_pci_sec",
+    .flags         = DEVICE_PCI | DEVICE_AT,
+    .local         = 4,
+    .init          = ide_init,
+    .close         = ide_close,
+    .reset         = ide_reset,
+    .available     = NULL,
+    .speed_changed = NULL,
+    .force_redraw  = NULL,
+    .config        = NULL
+};
+
 const device_t ide_pci_2ch_device = {
     .name          = "PCI IDE Controller (Dual-Channel)",
     .internal_name = "ide_pci_2ch",
diff --git a/src/include/86box/hdc.h b/src/include/86box/hdc.h
index 5e09c2242..7731d60d4 100644
--- a/src/include/86box/hdc.h
+++ b/src/include/86box/hdc.h
@@ -50,10 +50,13 @@ extern const device_t esdi_at_wd1007vse1_device; /* esdi_at */
 extern const device_t esdi_ps2_device;           /* esdi_mca */
 
 extern const device_t ide_isa_device;         /* isa_ide */
+extern const device_t ide_isa_sec_device;     /* isa_ide sec*/
 extern const device_t ide_isa_2ch_device;     /* isa_ide_2ch */
 extern const device_t ide_vlb_device;         /* vlb_ide */
+extern const device_t ide_vlb_sec_device;     /* vlb_ide sec */
 extern const device_t ide_vlb_2ch_device;     /* vlb_ide_2ch */
 extern const device_t ide_pci_device;         /* pci_ide */
+extern const device_t ide_pci_sec_device;     /* pci_ide sec */
 extern const device_t ide_pci_2ch_device;     /* pci_ide_2ch */
 
 extern const device_t ide_ali1489_device;                       /* ALi M1489 */