Hi Michael,
On Sun, Jun 6, 2021 at 7:54 AM Michael Schmitz <schmitzmic@xxxxxxxxx> wrote:
Add code to support 10 Mbit and 100 Mbit mode for APNE driver.
A new ISA type ISA_TYPE_AG100 switches the Amiga ISA inb accessor
to word access as required by the 100 Mbit cards.
missing "dynamically".
Patch modified after patch "[PATCH RFC net-next] Amiga PCMCIA
100 MBit card support" submitted to netdev 2018/09/16 by Alex
Kazik <alex@xxxxxxxx>.
Signed-off-by: Michael Schmitz <schmitzmic@xxxxxxxxx>
Thanks for your patch!
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -101,6 +101,11 @@
#define ISA_TYPE_Q40 (1)
#define ISA_TYPE_AG (2)
#define ISA_TYPE_ENEC (3)
+#define ISA_TYPE_AG100 (4) /* for 100 MBit APNE card */
As this type may be needed for other cards, perhaps it should be
named after what it really does, i.e. always using 16-bit accesses?
ISA_TYPE_AG16?
+
+#if defined(CONFIG_APNE100MBIT)
#ifdef
+#define MULTI_ISA 1
+#endif
#if defined(CONFIG_Q40) && !defined(MULTI_ISA)
#define ISA_TYPE ISA_TYPE_Q40
@@ -135,6 +140,9 @@ static inline u8 __iomem *isa_itb(unsigned long addr)
#ifdef CONFIG_Q40
case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_IO_B(addr);
#endif
+#if defined(CONFIG_APNE100MBIT)
#ifdef
+ case ISA_TYPE_AG100: fallthrough;
Fallthrough to what? Oh, to ISA_TYPE_AG.
Please make this clear, and safer, by moving this inside the #ifdef
below (CONFIG_APNE100MBIT depends on CONFIG_AMIGA_PCMCIA).
+#endif
#ifdef CONFIG_AMIGA_PCMCIA
case ISA_TYPE_AG: return (u8 __iomem *)AG_ISA_IO_B(addr);
#endif
@@ -212,13 +232,16 @@ static inline u16 __iomem *isa_mtw(unsigned long addr)
}
-#define isa_inb(port) in_8(isa_itb(port))
Why move it below? Because its comment does not apply to the below?
#define isa_inw(port) (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port)))
#define isa_inl(port) (ISA_SEX ? in_be32(isa_itl(port)) : in_le32(isa_itl(port)))
#define isa_outb(val,port) out_8(isa_itb(port),(val))
#define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val)))
#define isa_outl(val,port) (ISA_SEX ? out_be32(isa_itl(port),(val)) : out_le32(isa_itl(port),(val)))
+/* for APNE 100 Mbit cards - hope the APNE 100 case will be eliminated as
+ * dead code if MULTI_ISA is not set */
I don't think this comment is needed.
+#define isa_inb(port) ((ISA_TYPE == ISA_TYPE_AG100) ? ((port) & 1 ? isa_inw((port) - 1) & 0xff : isa_inw(port) >> 8) : in_8(isa_itb(port))
+
#define isa_readb(p) in_8(isa_mtb((unsigned long)(p)))
#define isa_readw(p) \
(ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
