Subject: [patch 13/18] PS3: USB system-bus rework

From: Geoff Levand <[email-masked]>
Date: Tue, 05 Jun 2007 20:01:00 -0700

USB HCD glue updates to reflect the new PS3 unifed device support.
 - Fixed remove() routine.
 - Added shutdown() routine.
 - Added request_mem_region() call.
 - Fixed MODULE_ALIAS().
 - Made a proper fix for the hack done to support muti-platform in commit
   48fda45120a819ca40cadc50144b55bff1c4c78d.

Signed-off-by: Geoff Levand <[email-masked]>
---
 drivers/usb/host/ehci-hcd.c |   22 +++--------
 drivers/usb/host/ehci-ps3.c |   86 +++++++++++++++++++++++++++++++++++++------
 drivers/usb/host/ohci-hcd.c |   20 +++-------
 drivers/usb/host/ohci-ps3.c |   87 +++++++++++++++++++++++++++++++++++++-------
 4 files changed, 162 insertions(+), 53 deletions(-)
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -41,10 +41,6 @@
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/unaligned.h>
-#ifdef CONFIG_PPC_PS3
-#include <asm/firmware.h>
-#endif
-
 
 /*-------------------------------------------------------------------------*/
 
@@ -937,7 +933,7 @@ MODULE_LICENSE ("GPL");
 
 #ifdef CONFIG_PPC_PS3
 #include "ehci-ps3.c"
-#define	PS3_SYSTEM_BUS_DRIVER	ps3_ehci_sb_driver
+#define	PS3_SYSTEM_BUS_DRIVER	ps3_ehci_driver
 #endif
 
 #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
@@ -971,18 +967,15 @@ static int __init ehci_hcd_init(void)
 #endif
 
 #ifdef PS3_SYSTEM_BUS_DRIVER
-	if (firmware_has_feature(FW_FEATURE_PS3_LV1)) {
-		retval = ps3_system_bus_driver_register(
-				&PS3_SYSTEM_BUS_DRIVER);
-		if (retval < 0) {
+	retval = ps3_ehci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
+	if (retval < 0) {
 #ifdef PLATFORM_DRIVER
-			platform_driver_unregister(&PLATFORM_DRIVER);
+		platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
 #ifdef PCI_DRIVER
-			pci_unregister_driver(&PCI_DRIVER);
+		pci_unregister_driver(&PCI_DRIVER);
 #endif
-			return retval;
-		}
+		return retval;
 	}
 #endif
 
@@ -999,8 +992,7 @@ static void __exit ehci_hcd_cleanup(void
 	pci_unregister_driver(&PCI_DRIVER);
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
-	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
-		ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+	ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
 }
 module_exit(ehci_hcd_cleanup);
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -18,6 +18,7 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <asm/firmware.h>
 #include <asm/ps3.h>
 
 static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
@@ -73,7 +74,7 @@ static const struct hc_driver ps3_ehci_h
 #endif
 };
 
-static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev)
+static int ps3_ehci_probe(struct ps3_system_bus_device *dev)
 {
 	int result;
 	struct usb_hcd *hcd;
@@ -85,13 +86,30 @@ static int ps3_ehci_sb_probe(struct ps3_
 		goto fail_start;
 	}
 
+	result = ps3_open_hv_device(dev);
+
+	if (result) {
+		dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
+			__func__, __LINE__);
+		goto fail_open;
+	}
+
+	result = ps3_dma_region_create(dev->d_region);
+
+	if (result) {
+		dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
+			"(%d)\n", __func__, __LINE__, result);
+		BUG_ON("check region type");
+		goto fail_dma_region;
+	}
+
 	result = ps3_mmio_region_create(dev->m_region);
 
 	if (result) {
 		dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
 			__func__, __LINE__);
 		result = -EPERM;
-		goto fail_mmio;
+		goto fail_mmio_region;
 	}
 
 	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
@@ -120,6 +138,11 @@ static int ps3_ehci_sb_probe(struct ps3_
 
 	hcd->rsrc_start = dev->m_region->lpar_addr;
 	hcd->rsrc_len = dev->m_region->len;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
+		dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
+			__func__, __LINE__);
+
 	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
 
 	if (!hcd->regs) {
@@ -153,34 +176,73 @@ static int ps3_ehci_sb_probe(struct ps3_
 fail_add_hcd:
 	iounmap(hcd->regs);
 fail_ioremap:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 fail_create_hcd:
 	ps3_io_irq_destroy(virq);
 fail_irq:
 	ps3_free_mmio_region(dev->m_region);
-fail_mmio:
+fail_mmio_region:
+	ps3_dma_region_free(dev->d_region);
+fail_dma_region:
+	ps3_close_hv_device(dev);
+fail_open:
 fail_start:
 	return result;
 }
 
-static int ps3_ehci_sb_remove(struct ps3_system_bus_device *dev)
+static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
 {
+	unsigned int tmp;
 	struct usb_hcd *hcd =
 		(struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
 
-	usb_put_hcd(hcd);
+	BUG_ON(!hcd);
+
+	dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
+	dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
+
+	tmp = hcd->irq;
+
+	usb_remove_hcd(hcd);
+
 	ps3_system_bus_set_driver_data(dev, NULL);
 
+	BUG_ON(!hcd->regs);
+	iounmap(hcd->regs);
+
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+
+	ps3_io_irq_destroy(tmp);
+	ps3_free_mmio_region(dev->m_region);
+
+	ps3_dma_region_free(dev->d_region);
+	ps3_close_hv_device(dev);
+
 	return 0;
 }
 
-MODULE_ALIAS("ps3-ehci");
+static int ps3_ehci_driver_register(struct ps3_system_bus_driver *drv)
+{
+	return firmware_has_feature(FW_FEATURE_PS3_LV1)
+		? ps3_system_bus_driver_register(drv)
+		: -ENODEV;
+}
+
+static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv)
+{
+	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
+		ps3_system_bus_driver_unregister(drv);
+}
+
+MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);
 
-static struct ps3_system_bus_driver ps3_ehci_sb_driver = {
+static struct ps3_system_bus_driver ps3_ehci_driver = {
+	.core.name = "ps3-ehci-driver",
+	.core.owner = THIS_MODULE,
 	.match_id = PS3_MATCH_ID_EHCI,
-	.core = {
-		.name = "ps3-ehci-driver",
-	},
-	.probe = ps3_ehci_sb_probe,
-	.remove = ps3_ehci_sb_remove,
+	.probe = ps3_ehci_probe,
+	.remove = ps3_ehci_remove,
+	.shutdown = ps3_ehci_remove,
 };
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -41,9 +41,6 @@
 #include <asm/system.h>
 #include <asm/unaligned.h>
 #include <asm/byteorder.h>
-#ifdef CONFIG_PPC_PS3
-#include <asm/firmware.h>
-#endif
 
 #include "../core/hcd.h"
 
@@ -917,7 +914,7 @@ MODULE_LICENSE ("GPL");
 
 #ifdef CONFIG_PPC_PS3
 #include "ohci-ps3.c"
-#define PS3_SYSTEM_BUS_DRIVER	ps3_ohci_sb_driver
+#define PS3_SYSTEM_BUS_DRIVER	ps3_ohci_driver
 #endif
 
 #if	!defined(PCI_DRIVER) &&		\
@@ -940,12 +937,9 @@ static int __init ohci_hcd_mod_init(void
 		sizeof (struct ed), sizeof (struct td));
 
 #ifdef PS3_SYSTEM_BUS_DRIVER
-	if (firmware_has_feature(FW_FEATURE_PS3_LV1)) {
-		retval = ps3_system_bus_driver_register(
-				&PS3_SYSTEM_BUS_DRIVER);
-		if (retval < 0)
-			goto error_ps3;
-	}
+	retval = ps3_ohci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
+	if (retval < 0)
+		goto error_ps3;
 #endif
 
 #ifdef PLATFORM_DRIVER
@@ -991,8 +985,7 @@ static int __init ohci_hcd_mod_init(void
  error_platform:
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
-	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
-		ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+	ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
  error_ps3:
 #endif
 	return retval;
@@ -1014,8 +1007,7 @@ static void __exit ohci_hcd_mod_exit(voi
 	platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
-	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
-		ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+	ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
 }
 module_exit(ohci_hcd_mod_exit);
--- a/drivers/usb/host/ohci-ps3.c
+++ b/drivers/usb/host/ohci-ps3.c
@@ -18,6 +18,7 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <asm/firmware.h>
 #include <asm/ps3.h>
 
 static int ps3_ohci_hc_reset(struct usb_hcd *hcd)
@@ -75,7 +76,7 @@ static const struct hc_driver ps3_ohci_h
 #endif
 };
 
-static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev)
+static int ps3_ohci_probe(struct ps3_system_bus_device *dev)
 {
 	int result;
 	struct usb_hcd *hcd;
@@ -87,13 +88,31 @@ static int ps3_ohci_sb_probe(struct ps3_
 		goto fail_start;
 	}
 
+	result = ps3_open_hv_device(dev);
+
+	if (result) {
+		dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		result = -EPERM;
+		goto fail_open;
+	}
+
+	result = ps3_dma_region_create(dev->d_region);
+
+	if (result) {
+		dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
+			"(%d)\n", __func__, __LINE__, result);
+		BUG_ON("check region type");
+		goto fail_dma_region;
+	}
+
 	result = ps3_mmio_region_create(dev->m_region);
 
 	if (result) {
 		dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
 			__func__, __LINE__);
 		result = -EPERM;
-		goto fail_mmio;
+		goto fail_mmio_region;
 	}
 
 	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
@@ -122,6 +141,11 @@ static int ps3_ohci_sb_probe(struct ps3_
 
 	hcd->rsrc_start = dev->m_region->lpar_addr;
 	hcd->rsrc_len = dev->m_region->len;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
+		dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
+			__func__, __LINE__);
+
 	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
 
 	if (!hcd->regs) {
@@ -155,34 +179,73 @@ static int ps3_ohci_sb_probe(struct ps3_
 fail_add_hcd:
 	iounmap(hcd->regs);
 fail_ioremap:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 fail_create_hcd:
 	ps3_io_irq_destroy(virq);
 fail_irq:
 	ps3_free_mmio_region(dev->m_region);
-fail_mmio:
+fail_mmio_region:
+	ps3_dma_region_free(dev->d_region);
+fail_dma_region:
+	ps3_close_hv_device(dev);
+fail_open:
 fail_start:
 	return result;
 }
 
-static int ps3_ohci_sb_remove (struct ps3_system_bus_device *dev)
+static int ps3_ohci_remove (struct ps3_system_bus_device *dev)
 {
+	unsigned int tmp;
 	struct usb_hcd *hcd =
 		(struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
 
-	usb_put_hcd(hcd);
+	BUG_ON(!hcd);
+
+	dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
+	dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
+
+	tmp = hcd->irq;
+
+	usb_remove_hcd(hcd);
+
 	ps3_system_bus_set_driver_data(dev, NULL);
 
+	BUG_ON(!hcd->regs);
+	iounmap(hcd->regs);
+
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+
+	ps3_io_irq_destroy(tmp);
+	ps3_free_mmio_region(dev->m_region);
+
+	ps3_dma_region_free(dev->d_region);
+	ps3_close_hv_device(dev);
+
 	return 0;
 }
 
-MODULE_ALIAS("ps3-ohci");
+static int ps3_ohci_driver_register(struct ps3_system_bus_driver *drv)
+{
+	return firmware_has_feature(FW_FEATURE_PS3_LV1)
+		? ps3_system_bus_driver_register(drv)
+		: -ENODEV;
+}
+
+static void ps3_ohci_driver_unregister(struct ps3_system_bus_driver *drv)
+{
+	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
+		ps3_system_bus_driver_unregister(drv);
+}
+
+MODULE_ALIAS(PS3_MODULE_ALIAS_OHCI);
 
-static struct ps3_system_bus_driver ps3_ohci_sb_driver = {
+static struct ps3_system_bus_driver ps3_ohci_driver = {
+	.core.name = "ps3-ohci-driver",
+	.core.owner = THIS_MODULE,
 	.match_id = PS3_MATCH_ID_OHCI,
-	.core = {
-		.name = "ps3-ohci-driver",
-	},
-	.probe = ps3_ohci_sb_probe,
-	.remove = ps3_ohci_sb_remove,
+	.probe = ps3_ohci_probe,
+	.remove = ps3_ohci_remove,
+	.shutdown = ps3_ohci_remove,
 };

--