[Qemu-devel] [PULL 5/8] sii3112: Remove duplicated code and use PCI IDE ops instead

[John Snow <jsnow@redhat.com>]

From: BALATON Zoltan <balaton@eik.bme.hu>

Parts of the SiI3112 mmio are identical to PCI IDE registers so we can
use the corresponding functions that were factored out into ide/pci.c.
This removes code duplication and simplifies the SiI3112 model which
also helped to spot a copy paste error where reading status of the
2nd channel read the 1st channel instead. This is also fixed here.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 793b6a7934ef2bba26b8d066bec446019efa6c5d.1547166960.git.balaton@eik.bme.hu
Signed-off-by: John Snow <jsnow@redhat.com>
---
 hw/ide/sii3112.c | 52 ++++++++----------------------------------------
 1 file changed, 8 insertions(+), 44 deletions(-)

diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c
index 743a50ed51..59db09cfe4 100644
--- a/hw/ide/sii3112.c
+++ b/hw/ide/sii3112.c
@@ -88,35 +88,19 @@ static uint64_t sii3112_reg_read(void *opaque, hwaddr addr,
         val |= (uint32_t)d->i.bmdma[1].status << 16;
         break;
     case 0x80 ... 0x87:
-        if (size == 1) {
-            val = ide_ioport_read(&d->i.bus[0], addr - 0x80);
-        } else if (addr == 0x80) {
-            val = (size == 2) ? ide_data_readw(&d->i.bus[0], 0) :
-                                ide_data_readl(&d->i.bus[0], 0);
-        } else {
-            val = (1ULL << (size * 8)) - 1;
-        }
+        val = pci_ide_data_le_ops.read(&d->i.bus[0], addr - 0x80, size);
         break;
     case 0x8a:
-        val = (size == 1) ? ide_status_read(&d->i.bus[0], 4) :
-                            (1ULL << (size * 8)) - 1;
+        val = pci_ide_cmd_le_ops.read(&d->i.bus[0], 2, size);
         break;
     case 0xa0:
         val = d->regs[0].confstat;
         break;
     case 0xc0 ... 0xc7:
-        if (size == 1) {
-            val = ide_ioport_read(&d->i.bus[1], addr - 0xc0);
-        } else if (addr == 0xc0) {
-            val = (size == 2) ? ide_data_readw(&d->i.bus[1], 0) :
-                                ide_data_readl(&d->i.bus[1], 0);
-        } else {
-            val = (1ULL << (size * 8)) - 1;
-        }
+        val = pci_ide_data_le_ops.read(&d->i.bus[1], addr - 0xc0, size);
         break;
     case 0xca:
-        val = (size == 1) ? ide_status_read(&d->i.bus[0], 4) :
-                            (1ULL << (size * 8)) - 1;
+        val = pci_ide_cmd_le_ops.read(&d->i.bus[1], 2, size);
         break;
     case 0xe0:
         val = d->regs[1].confstat;
@@ -186,36 +170,16 @@ static void sii3112_reg_write(void *opaque, hwaddr addr,
         bmdma_addr_ioport_ops.write(&d->i.bmdma[1], addr - 12, val, size);
         break;
     case 0x80 ... 0x87:
-        if (size == 1) {
-            ide_ioport_write(&d->i.bus[0], addr - 0x80, val);
-        } else if (addr == 0x80) {
-            if (size == 2) {
-                ide_data_writew(&d->i.bus[0], 0, val);
-            } else {
-                ide_data_writel(&d->i.bus[0], 0, val);
-            }
-        }
+        pci_ide_data_le_ops.write(&d->i.bus[0], addr - 0x80, val, size);
         break;
     case 0x8a:
-        if (size == 1) {
-            ide_cmd_write(&d->i.bus[0], 4, val);
-        }
+        pci_ide_cmd_le_ops.write(&d->i.bus[0], 2, val, size);
         break;
     case 0xc0 ... 0xc7:
-        if (size == 1) {
-            ide_ioport_write(&d->i.bus[1], addr - 0xc0, val);
-        } else if (addr == 0xc0) {
-            if (size == 2) {
-                ide_data_writew(&d->i.bus[1], 0, val);
-            } else {
-                ide_data_writel(&d->i.bus[1], 0, val);
-            }
-        }
+        pci_ide_data_le_ops.write(&d->i.bus[1], addr - 0xc0, val, size);
         break;
     case 0xca:
-        if (size == 1) {
-            ide_cmd_write(&d->i.bus[1], 4, val);
-        }
+        pci_ide_cmd_le_ops.write(&d->i.bus[1], 2, val, size);
         break;
     case 0x100:
         d->regs[0].scontrol = val & 0xfff;
-- 
2.17.2