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Subject[PATCH net v4 11/13] net/macsonic: Convert to nubus_driver
Date
This resolves an old issue preventing any NuBus SONIC NICs from
working in a Mac with an on-board SONIC device.

Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
---
drivers/net/ethernet/natsemi/macsonic.c | 172 ++++++++++++++++++++++----------
1 file changed, 118 insertions(+), 54 deletions(-)

diff --git a/drivers/net/ethernet/natsemi/macsonic.c b/drivers/net/ethernet/natsemi/macsonic.c
index b922ab5cedea..14b25175dc2f 100644
--- a/drivers/net/ethernet/natsemi/macsonic.c
+++ b/drivers/net/ethernet/natsemi/macsonic.c
@@ -60,8 +60,6 @@
#include <asm/macints.h>
#include <asm/mac_via.h>

-static char mac_sonic_string[] = "macsonic";
-
#include "sonic.h"

/* These should basically be bus-size and endian independent (since
@@ -410,7 +408,7 @@ static int mac_onboard_sonic_probe(struct net_device *dev)
return macsonic_init(dev);
}

-static int mac_nubus_sonic_ethernet_addr(struct net_device *dev,
+static int mac_sonic_nubus_ethernet_addr(struct net_device *dev,
unsigned long prom_addr, int id)
{
int i;
@@ -449,70 +447,49 @@ static int macsonic_ident(struct nubus_rsrc *fres)
return -1;
}

-static int mac_nubus_sonic_probe(struct net_device *dev)
+static int mac_sonic_nubus_probe_board(struct nubus_board *board, int id,
+ struct net_device *dev)
{
- static int slots;
- struct nubus_rsrc *ndev = NULL;
struct sonic_local* lp = netdev_priv(dev);
unsigned long base_addr, prom_addr;
u16 sonic_dcr;
- int id = -1;
int reg_offset, dma_bitmode;

- /* Find the first SONIC that hasn't been initialized already */
- for_each_func_rsrc(ndev) {
- if (ndev->category != NUBUS_CAT_NETWORK ||
- ndev->type != NUBUS_TYPE_ETHERNET)
- continue;
-
- /* Have we seen it already? */
- if (slots & (1<<ndev->board->slot))
- continue;
- slots |= 1<<ndev->board->slot;
-
- /* Is it one of ours? */
- if ((id = macsonic_ident(ndev)) != -1)
- break;
- }
-
- if (ndev == NULL)
- return -ENODEV;
-
switch (id) {
case MACSONIC_DUODOCK:
- base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
- prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
+ base_addr = board->slot_addr + DUODOCK_SONIC_REGISTERS;
+ prom_addr = board->slot_addr + DUODOCK_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
SONIC_DCR_TFT0;
reg_offset = 2;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE:
- base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
- prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
+ base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
+ prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE16:
- base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
- prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
+ base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
+ prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNALINK:
- base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
- prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
+ base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
+ prom_addr = board->slot_addr + DAYNALINK_PROM_BASE;
sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNA:
- base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
- prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
+ base_addr = board->slot_addr + DAYNA_SONIC_REGISTERS;
+ prom_addr = board->slot_addr + DAYNA_SONIC_MAC_ADDR;
sonic_dcr = SONIC_DCR_BMS |
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
reg_offset = 0;
@@ -528,14 +505,14 @@ static int mac_nubus_sonic_probe(struct net_device *dev)
dev->base_addr = base_addr;
lp->reg_offset = reg_offset;
lp->dma_bitmode = dma_bitmode;
- dev->irq = SLOT2IRQ(ndev->board->slot);
+ dev->irq = SLOT2IRQ(board->slot);

if (!sonic_version_printed) {
printk(KERN_INFO "%s", version);
sonic_version_printed = 1;
}
printk(KERN_INFO "%s: %s in slot %X\n",
- dev_name(lp->device), ndev->board->name, ndev->board->slot);
+ dev_name(lp->device), board->name, board->slot);
printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);

@@ -557,14 +534,14 @@ static int mac_nubus_sonic_probe(struct net_device *dev)
SONIC_WRITE(SONIC_ISR, 0x7fff);

/* Now look for the MAC address. */
- if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
+ if (mac_sonic_nubus_ethernet_addr(dev, prom_addr, id) != 0)
return -ENODEV;

/* Shared init code */
return macsonic_init(dev);
}

-static int mac_sonic_probe(struct platform_device *pdev)
+static int mac_sonic_platform_probe(struct platform_device *pdev)
{
struct net_device *dev;
struct sonic_local *lp;
@@ -579,16 +556,10 @@ static int mac_sonic_probe(struct platform_device *pdev)
SET_NETDEV_DEV(dev, &pdev->dev);
platform_set_drvdata(pdev, dev);

- /* This will catch fatal stuff like -ENOMEM as well as success */
err = mac_onboard_sonic_probe(dev);
- if (err == 0)
- goto found;
- if (err != -ENODEV)
- goto out;
- err = mac_nubus_sonic_probe(dev);
if (err)
goto out;
-found:
+
err = register_netdev(dev);
if (err)
goto out;
@@ -610,7 +581,7 @@ MODULE_ALIAS("platform:macsonic");

#include "sonic.c"

-static int mac_sonic_device_remove(struct platform_device *pdev)
+static int mac_sonic_platform_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
struct sonic_local* lp = netdev_priv(dev);
@@ -623,12 +594,105 @@ static int mac_sonic_device_remove(struct platform_device *pdev)
return 0;
}

-static struct platform_driver mac_sonic_driver = {
- .probe = mac_sonic_probe,
- .remove = mac_sonic_device_remove,
- .driver = {
- .name = mac_sonic_string,
+static struct platform_driver mac_sonic_platform_driver = {
+ .probe = mac_sonic_platform_probe,
+ .remove = mac_sonic_platform_remove,
+ .driver = {
+ .name = "macsonic",
+ },
+};
+
+static int mac_sonic_nubus_probe(struct nubus_board *board)
+{
+ struct net_device *ndev;
+ struct sonic_local *lp;
+ struct nubus_rsrc *fres;
+ int id = -1;
+ int err;
+
+ /* The platform driver will handle a PDS or Comm Slot card (even if
+ * it has a pseudoslot declaration ROM).
+ */
+ if (macintosh_config->expansion_type == MAC_EXP_PDS_COMM)
+ return -ENODEV;
+
+ for_each_board_func_rsrc(board, fres) {
+ if (fres->category != NUBUS_CAT_NETWORK ||
+ fres->type != NUBUS_TYPE_ETHERNET)
+ continue;
+
+ id = macsonic_ident(fres);
+ if (id != -1)
+ break;
+ }
+ if (!fres)
+ return -ENODEV;
+
+ ndev = alloc_etherdev(sizeof(struct sonic_local));
+ if (!ndev)
+ return -ENOMEM;
+
+ lp = netdev_priv(ndev);
+ lp->device = &board->dev;
+ SET_NETDEV_DEV(ndev, &board->dev);
+
+ err = mac_sonic_nubus_probe_board(board, id, ndev);
+ if (err)
+ goto out;
+
+ dev_info(lp->device, "MAC %pM, IRQ %d\n", ndev->dev_addr, ndev->irq);
+
+ err = register_netdev(ndev);
+ if (err)
+ goto out;
+
+ nubus_set_drvdata(board, ndev);
+
+ return 0;
+
+out:
+ free_netdev(ndev);
+ return err;
+}
+
+static int mac_sonic_nubus_remove(struct nubus_board *board)
+{
+ struct net_device *ndev = nubus_get_drvdata(board);
+ struct sonic_local *lp = netdev_priv(ndev);
+
+ unregister_netdev(ndev);
+ dma_free_coherent(lp->device,
+ SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
+ lp->descriptors, lp->descriptors_laddr);
+ free_netdev(ndev);
+
+ return 0;
+}
+
+static struct nubus_driver mac_sonic_nubus_driver = {
+ .probe = mac_sonic_nubus_probe,
+ .remove = mac_sonic_nubus_remove,
+ .driver = {
+ .name = "macsonic-nubus",
+ .owner = THIS_MODULE,
},
};

-module_platform_driver(mac_sonic_driver);
+static int perr, nerr;
+
+static int __init mac_sonic_init(void)
+{
+ perr = platform_driver_register(&mac_sonic_platform_driver);
+ nerr = nubus_driver_register(&mac_sonic_nubus_driver);
+ return 0;
+}
+module_init(mac_sonic_init);
+
+static void __exit mac_sonic_exit(void)
+{
+ if (!perr)
+ platform_driver_unregister(&mac_sonic_platform_driver);
+ if (!nerr)
+ nubus_driver_unregister(&mac_sonic_nubus_driver);
+}
+module_exit(mac_sonic_exit);
--
2.13.6
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