Implement media change flag

1 files changed, 7 insertions, 0 deletions

diff --git a/avr/z180-serv.c b/avr/z180-serv.c
index a49c9f9..d8e412f 100644
--- a/avr/z180-serv.c
+++ b/avr/z180-serv.c
@@ -256,6 +256,13 @@ int drv_detach(uint8_t drv)
 			p->opt = 0;
 			p->flags &= ~DRV_FLG_DIRTY;
 			p->img_name = NULL;
+
+			uint32_t scb = getenv_ulong(ENV_CPM3_SCB, 16, 0);
+			if (scb && (z80_bus_cmd(Request) & ZST_ACQUIRED)) {
+				z80_write(scb + 0xf0, 0xff);
+				z80_write(p->dph + 11, 0xff);
+				z80_bus_cmd(Release);
+			}
 		}
 	}
 	return 0;