From 58626d8b78f26f0d9c480033d3c3a12e541342b1 Mon Sep 17 00:00:00 2001
From: George Sapountzis <gsap7@yahoo.gr>
Date: Fri, 23 Mar 2007 21:30:19 +0200
Subject: Move {atimach64,r128,radeon}_probe.c from ati to subdrivers.

Subdrivers are now loaded from the wrapper Probe function rather than at screen
creation time.

The wrapper Identify callback only prints chip families now, chip lists are
printed when a subdriver is loaded. This also avoids duplication of subdriver
Identify callbacks.

Unknown radeons should still get a list of known radeon and then probe fails...

Probe for atimisc last to avoid needless loading in most cases (r128, radeon).
---
 src/ati.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 82 insertions(+), 20 deletions(-)

(limited to 'src/ati.c')

diff --git a/src/ati.c b/src/ati.c
index e7a5aeef..fa7d9e8a 100644
--- a/src/ati.c
+++ b/src/ati.c
@@ -59,6 +59,7 @@
 
 #include "ati.h"
 #include "atichip.h"
+#include "atimodule.h"
 #include "ativersion.h"
 #include "atimach64probe.h"
 
@@ -78,10 +79,13 @@ ATIIdentify
     int flags
 )
 {
+    /*
+     * Only print chip families here, chip lists are printed when a subdriver
+     * is loaded.
+     */
     xf86Msg(X_INFO, "%s: %s\n", ATI_NAME,
-            "ATI driver (version " ATI_VERSION_NAME ") for chipset: mach64");
-    R128Identify(flags);
-    RADEONIdentify(flags);
+            "ATI driver wrapper (version " ATI_VERSION_NAME ") for chipsets: "
+            "mach64, rage128, radeon");
 }
 
 /*
@@ -98,7 +102,6 @@ ATIProbe
 )
 {
     pciVideoPtr pVideo, *xf86PciVideoInfo = xf86GetPciVideoInfo();
-    Bool        ProbeSuccess = FALSE;
     Bool        DoMach64 = FALSE;
     Bool        DoRage128 = FALSE, DoRadeon = FALSE;
     int         i;
@@ -138,19 +141,73 @@ ATIProbe
         }
     }
 
-    /* Call Mach64 driver probe */
-    if (DoMach64 && Mach64Probe(pDriver, flags))
-        ProbeSuccess = TRUE;
+    /* Call Radeon driver probe */
+    if (DoRadeon)
+    {
+        pointer radeon = xf86LoadDrvSubModule(pDriver, "radeon");
+
+        if (!radeon)
+        {
+            xf86Msg(X_ERROR,
+                ATI_NAME ":  Failed to load \"radeon\" module.\n");
+            return FALSE;
+        }
+
+        xf86LoaderReqSymLists(RADEONSymbols, NULL);
+
+        RADEONIdentify(flags);
+
+        if (RADEONProbe(pDriver, flags))
+            return TRUE;
+
+        xf86UnloadSubModule(radeon);
+    }
 
     /* Call Rage 128 driver probe */
-    if (DoRage128 && R128Probe(pDriver, flags))
-        ProbeSuccess = TRUE;
+    if (DoRage128)
+    {
+        pointer r128 = xf86LoadDrvSubModule(pDriver, "r128");
 
-    /* Call Radeon driver probe */
-    if (DoRadeon && RADEONProbe(pDriver, flags))
-        ProbeSuccess = TRUE;
+        if (!r128)
+        {
+            xf86Msg(X_ERROR,
+                ATI_NAME ":  Failed to load \"r128\" module.\n");
+            return FALSE;
+        }
+
+        xf86LoaderReqSymLists(R128Symbols, NULL);
 
-    return ProbeSuccess;
+        R128Identify(flags);
+
+        if (R128Probe(pDriver, flags))
+            return TRUE;
+
+        xf86UnloadSubModule(r128);
+    }
+
+    /* Call Mach64 driver probe */
+    if (DoMach64)
+    {
+        pointer atimisc = xf86LoadDrvSubModule(pDriver, "atimisc");
+
+        if (!atimisc)
+        {
+            xf86Msg(X_ERROR,
+                ATI_NAME ":  Failed to load \"atimisc\" module.\n");
+            return FALSE;
+        }
+
+        xf86LoaderReqSymLists(ATISymbols, NULL);
+
+        Mach64Identify(flags);
+
+        if (Mach64Probe(pDriver, flags))
+            return TRUE;
+
+        xf86UnloadSubModule(atimisc);
+    }
+
+    return FALSE;
 }
 
 /*
@@ -158,22 +215,27 @@ ATIProbe
  *
  * Return recognised options that are intended for public consumption.
  */
-const OptionInfoRec *
+static const OptionInfoRec *
 ATIAvailableOptions
 (
     int ChipId,
     int BusId
 )
 {
-    const OptionInfoRec *pOptions;
+    CARD16      ChipType = ChipId & 0xffff;
+    ATIChipType Chip;
 
-    if ((pOptions = R128AvailableOptions(ChipId, BusId)))
-        return pOptions;
+    /* Probe should have loaded the appropriate subdriver by this point */
 
-    if ((pOptions = RADEONAvailableOptions(ChipId, BusId)))
-        return pOptions;
+    Chip = ATIChipID(ChipType, 0x0); /* chip revision is don't care */
+    if (Chip <= ATI_CHIP_Mach64)
+        return Mach64AvailableOptions(ChipId, BusId);
+    else if (Chip <= ATI_CHIP_Rage128)
+        return R128AvailableOptions(ChipId, BusId);
+    else if (Chip <= ATI_CHIP_Radeon)
+        return RADEONAvailableOptions(ChipId, BusId);
 
-    return Mach64AvailableOptions(ChipId, BusId);
+    return NULL;
 }
 
 /* The root of all evil... */
-- 
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