[PATCH 0/7] acxsm: Make acxsm modular again (2nd try)

[PATCH 0/7] acxsm: Make acxsm modular again (2nd try)

[Carlos Martin]

Hi,

There are a couple of differences between this and my previos patch,
so I'll list them here:

- Separate the patches properly

- This patchset uses the default generic functions and calls the
  appropiate function using a #define, which should be much clearer
  and saves us from having to migrate the whole common.c file.

- We get the proper string for the _debug family of functions.

- acx_ops.issue_cmd takes different functions depending on the debug
  level so we save a few bytes we weren't going to use otherwise. This
  also saves a function call.

- Denis' sense of style has been applied, though some of it doesn't
  apply anymore and some came from me trying to do too many things at
  once which screwed up the format. I hope these are alright.

 Kconfig      |   40 ++++++++++----------
 Makefile     |   15 +++++--
 acx_func.h   |  112 ++++++++++++++++++++--------------------------------------
 acx_struct.h |   32 ++++++++++++++--
 common.c     |  113 ++++++++++++++++++++++++++++-------------------------------
 ioctl.c      |    2 +
 pci.c        |   31 ++++++++++++++++
 usb.c        |   27 +++++++++++++-
 8 files changed, 212 insertions(+), 160 deletions(-)




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[PATCH 1/7] acxsm: Change Kconfig and Makefile to be modular

[Carlos Martin]

We now only expose ACX_PCI and ACX_USB and the Makefile creates
acx-usb.ko, acx-pci.ko and acx-common.ko

Signed-off-by: Carlos Martin <carlos@cmartin.tk>

---

 Kconfig  |   40 ++++++++++++++++++++--------------------
 Makefile |   15 +++++++++++----
 2 files changed, 31 insertions(+), 24 deletions(-)

66c1585df6e0969806b9608fb3f006eb1eb02637
diff --git a/Kconfig b/Kconfig
index 8ec3879..ba7889e 100644
--- a/Kconfig
+++ b/Kconfig
@@ -1,6 +1,6 @@
-config ACX
-	tristate "TI acx100/acx111 802.11b/g wireless chipsets"
-	depends on NET_RADIO && EXPERIMENTAL && (USB || PCI)
+config ACX_PCI
+	tristate "TI acx100/acx111 802.11b/g PCI"
+	depends on NET_RADIO && EXPERIMENTAL && PCI
 	select FW_LOADER
 	select IEEE80211
 	select IEEE80211_SOFTMAC
@@ -8,20 +8,7 @@ config ACX
 	A driver for 802.11b/g wireless cards based on
 	Texas Instruments acx100 and acx111 chipsets.
 
-	This driver supports Host AP mode that allows
-	your computer to act as an IEEE 802.11 access point.
-	This driver is new and experimental.
-
-	Texas Instruments did not take part in development of this driver
-	in any way, shape or form.
-
-	The driver can be compiled as a module and will be named "acx".
-
-config ACX_PCI
-	bool "TI acx100/acx111 802.11b/g PCI"
-	depends on ACX && PCI
-	---help---
-	Include PCI and CardBus support in acx.
+	This is the PCI code.
 
 	acx chipsets need their firmware loaded at startup.
 	You will need to provide a firmware image via hotplug.
@@ -46,11 +33,20 @@ config ACX_PCI
 	Firmware files are not covered by GPL and are not distributed
 	with this driver for legal reasons.
 
+	Texas Instruments did not take part in development of this driver
+	in any way, shape or form.
+
 config ACX_USB
-	bool "TI acx100/acx111 802.11b/g USB"
-	depends on ACX && (USB=y || USB=ACX)
+	tristate "TI acx100/acx111 802.11b/g USB"
+	depends on NET_RADIO && EXPERIMENTAL && USB
+	select FW_LOADER
+	select IEEE80211
+	select IEEE80211_SOFTMAC
 	---help---
-	Include USB support in acx.
+	A driver for 802.11b/g wireless cards based on
+	Texas Instruments acx100 and acx111 chipsets.
+
+	This is the USB code.
 
 	There is only one currently known device in this category,
 	D-Link DWL-120+, but newer devices seem to be on the horizon.
@@ -63,3 +59,7 @@ config ACX_USB
 
 	Firmware files are not covered by GPL and are not distributed
 	with this driver for legal reasons.
+
+	Texas Instruments did not take part in development of this driver
+	in any way, shape or form.
+
diff --git a/Makefile b/Makefile
index 192e6d3..8aa56af 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,13 @@
-obj-$(CONFIG_ACX) += acx.o
+acx-common-y += wlan.o ioctl.o common.o
+acx-usb-y += usb.o
+acx-pci-y += pci.o
 
-acx-obj-$(CONFIG_ACX_PCI) += pci.o
-acx-obj-$(CONFIG_ACX_USB) += usb.o
+obj-$(CONFIG_ACX_PCI) += acx-common.o acx-pci.o
+obj-$(CONFIG_ACX_USB) += acx-common.o acx-usb.o
 
-acx-objs := wlan.o ioctl.o common.o $(acx-obj-y)
+#obj-$(CONFIG_ACX) += acx.o
+#
+#acx-obj-$(CONFIG_ACX_PCI) += pci.o
+#acx-obj-$(CONFIG_ACX_USB) += usb.o
+#
+#acx-objs := wlan.o ioctl.o common.o $(acx-obj-y)
-- 
1.2.1.g62a4




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[PATCH 3/7] acxsm: Create struct acx_ops

[Carlos Martin]

struct acx_ops is where the device-specific functions go. This allows
us to call these functions from the acx-common.ko module without
creating recursive dependencies.

Signed-off-by: Carlos Martin <carlos@cmartin.tk>

---

 acx_struct.h |   32 ++++++++++++++++++++++++++++----
 1 files changed, 28 insertions(+), 4 deletions(-)

fe7e63091292e78cb523c8060b267c0faeb3b898
diff --git a/acx_struct.h b/acx_struct.h
index 93495e0..227b6e3 100644
--- a/acx_struct.h
+++ b/acx_struct.h
@@ -87,6 +87,31 @@ enum { acx_debug = 0 };
 #define SCHEDULE_WORK schedule_work
 #define FLUSH_SCHEDULED_WORK flush_scheduled_work
 
+/***********************************************************************
+** Chip-specific functions get set here.
+*/
+
+struct acx_ops {
+	int (*create_dma_regions)(acx_device_t *);
+	void (*delete_dma_regions)(acx_device_t *);
+
+#if ACX_DEBUG
+	int (*issue_cmd)(acx_device_t *adev, unsigned cmd, void *param,
+			 unsigned len, unsigned cmd_timeout, const char *cmdstr);
+#else
+	int (*issue_cmd)(acx_device_t *adev, unsigned cmd, void *param,
+			 unsigned len, unsigned cmd_timeout);
+#endif /* ACX_DEBUG */
+	tx_t* (*alloc_tx)(acx_device_t *adev);
+	void (*dealloc_tx)(tx_t *tx_opaque);
+
+	void* (*get_txbuf)(acx_device_t *adev, tx_t *tx_opaque);
+	void (*tx_data)(acx_device_t *adev, tx_t *tx_opaque, int len);
+
+	int (*write_phy_reg)(acx_device_t *adev, u32 reg, u8 value);
+	int (*read_phy_reg)(acx_device_t *adev, u32 reg, u8 *charbuf);
+};
+
 
 /***********************************************************************
 ** Constants
@@ -105,10 +130,6 @@ enum { acx_debug = 0 };
 #define DEVTYPE_PCI		0
 #define DEVTYPE_USB		1
 
-#if !defined(CONFIG_ACX_PCI) && !defined(CONFIG_ACX_USB)
-#error Driver must include PCI and/or USB support. You selected neither.
-#endif
-
 #if defined(CONFIG_ACX_PCI)
  #if !defined(CONFIG_ACX_USB)
   #define IS_PCI(adev)	1
@@ -1198,6 +1219,9 @@ struct acx_device {
 	/*** Linux network device ***/
 	struct net_device	*ndev;		/* pointer to linux netdevice */
 
+	/* Chip-specific functions */
+	struct acx_ops		ops;
+
 	/*** Device statistics ***/
 	struct net_device_stats	stats;		/* net device statistics */
 #ifdef WIRELESS_EXT
-- 
1.2.1.g62a4




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[PATCH 6/7] acxsm: Assign chip-specific ops in the probe functions

[Carlos Martin]

Assign the chip-specific ops in the probe functions. Add extern and
dummy functions where needed.

Signed-off-by: Carlos Martin <carlos@cmartin.tk>

---

 acx_func.h |    1 +
 pci.c      |   24 ++++++++++++++++++++++++
 usb.c      |   19 +++++++++++++++++++
 3 files changed, 44 insertions(+), 0 deletions(-)

1a6bb060d33906c12c6ef161b851cc1fab91d3a9
diff --git a/acx_func.h b/acx_func.h
index 0823aec..238c633 100644
--- a/acx_func.h
+++ b/acx_func.h
@@ -534,6 +534,7 @@ acx_l_alloc_tx(acx_device_t *adev)
 }
 
 void acxusb_l_dealloc_tx(tx_t *tx_opaque);
+void acxpci_l_dealloc_tx(tx_t *tx_opaque);
 static inline void
 acx_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque)
 {
diff --git a/pci.c b/pci.c
index 24224b9..23abb96 100644
--- a/pci.c
+++ b/pci.c
@@ -105,6 +105,9 @@ static int acxpci_e_close(struct net_dev
 static void acxpci_s_up(struct net_device *ndev);
 static void acxpci_s_down(struct net_device *ndev);
 
+extern int acx100_s_create_dma_regions(acx_device_t *);
+extern int acx111_s_create_dma_regions(acx_device_t *);
+
 #ifdef MODULE_LICENSE
 MODULE_LICENSE("Dual MPL/GPL");
 #endif
@@ -1599,6 +1602,22 @@ acxpci_e_probe(struct pci_dev *pdev, con
 	adev->ieee->sec.enabled = 0;
 	adev->ieee->sec.auth_mode = WLAN_AUTH_OPEN;
 
+#if ACX_DEBUG
+       adev->ops.issue_cmd = acxpci_s_issue_cmd_timeo_debug;
+#else
+       adev->ops.issue_cmd  = acxpci_s_issue_cmd_timeo;
+#endif /* ACX_DEBUG */
+       adev->ops.alloc_tx = acxpci_l_alloc_tx;
+       adev->ops.dealloc_tx = acxpci_l_dealloc_tx;
+       adev->ops.delete_dma_regions = acxpci_s_delete_dma_regions;
+       adev->ops.write_phy_reg = acxpci_s_write_phy_reg;
+       adev->ops.read_phy_reg = acxpci_s_read_phy_reg;
+
+       if (IS_ACX100(adev)) {
+	       adev->ops.create_dma_regions = acx100_s_create_dma_regions;
+       } else {
+	       adev->ops.create_dma_regions = acx111_s_create_dma_regions;
+       }
 #ifdef NONESSENTIAL_FEATURES
 	acx_show_card_eeprom_id(adev);
 #endif /* NONESSENTIAL_FEATURES */
@@ -3058,6 +3077,11 @@ end:
 	return (tx_t*)txdesc;
 }
 
+/* Dummy function. */
+static void
+acxpci_l_dealloc_tx(tx_t *tx_opaque)
+{
+}
 
 /***********************************************************************
 */
diff --git a/usb.c b/usb.c
index 6b0b578..5833d04 100644
--- a/usb.c
+++ b/usb.c
@@ -123,6 +123,8 @@ static void acxusb_l_poll_rx(acx_device_
 
 static void acxusb_i_tx_timeout(struct net_device *);
 
+extern int acx100_s_create_dma_regions(acx_device_t *);
+
 /* static void dump_device(struct usb_device *); */
 /* static void dump_device_descriptor(struct usb_device_descriptor *); */
 /* static void dump_config_descriptor(struct usb_config_descriptor *); */
@@ -763,6 +765,11 @@ acxusb_s_fill_configoption(acx_device_t 
 	return OK;
 }
 
+/* Dummy function. */
+static void
+acxusb_s_delete_dma_regions(acx_device_t *adev)
+{
+}
 
 /***********************************************************************
 ** acxusb_e_probe()
@@ -891,6 +898,18 @@ acxusb_e_probe(struct usb_interface *int
 	adev->ieee->sec.encrypt = 0;
 	adev->ieee->sec.auth_mode = WLAN_AUTH_OPEN;
 
+#if ACX_DEBUG
+	adev->ops.issue_cmd = acxusb_s_issue_cmd_timeo_debug;
+#else
+       adev->ops.issue_cmd  = acxusb_s_issue_cmd_timeo;
+#endif /* ACX_DEBUG */
+       adev->ops.alloc_tx = acxusb_l_alloc_tx;
+       adev->ops.dealloc_tx = acxusb_l_dealloc_tx;
+       adev->ops.delete_dma_regions = acxusb_s_delete_dma_regions;
+       adev->ops.write_phy_reg = acxusb_s_write_phy_reg;
+       adev->ops.read_phy_reg = acxusb_s_read_phy_reg;
+       adev->ops.create_dma_regions = acx100_s_create_dma_regions;
+
 	/* Check that this is really the hardware we know about.
 	** If not sure, at least notify the user that he
 	** may be in trouble...
-- 
1.2.1.g62a4




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[PATCH 2/7] acxsm: Move module init/exit to the modules

[Carlos Martin]

We now have the module license and init/exit routines in each module
instead of just calling them through common.c.

Signed-off-by: Carlos Martin <carlos@cmartin.tk>

---

 common.c |   55 +------------------------------------------------------
 pci.c    |   10 ++++++++++
 usb.c    |   11 ++++++++++-
 3 files changed, 21 insertions(+), 55 deletions(-)

147a9817d6d762545fc7c5efc124281b7c8ca8fb
diff --git a/common.c b/common.c
index 7f10725..a78b643 100644
--- a/common.c
+++ b/common.c
@@ -94,7 +94,7 @@ MODULE_LICENSE("Dual MPL/GPL");
 #endif
 /* USB had this: MODULE_AUTHOR("Martin Wawro <martin.wawro AT uni-dortmund.de>"); */
 MODULE_AUTHOR("ACX100 Open Source Driver development team");
-MODULE_DESCRIPTION("Driver for TI ACX1xx based wireless cards (CardBus/PCI/USB)");
+MODULE_DESCRIPTION("Driver for TI ACX1xx based wireless cards (common)");
 
 
 /***********************************************************************
@@ -7407,59 +7407,6 @@ acx_s_parse_configoption(acx_device_t *a
 }
 
 
-/***********************************************************************
-*/
-static int __init
-acx_e_init_module(void)
-{
-	int r1,r2;
-
-	acx_struct_size_check();
-
-	printk("acx: this driver is still EXPERIMENTAL\n"
-		"acx: reading README file and/or Craig's HOWTO is "
-		"recommended, visit http://acx100.sf.net in case "
-		"of further questions/discussion\n");
-
-#if defined(CONFIG_ACX_PCI)
-	r1 = acxpci_e_init_module();
-#else
-	r1 = -EINVAL;
-#endif
-#if defined(CONFIG_ACX_USB)
-	r2 = acxusb_e_init_module();
-#else
-	r2 = -EINVAL;
-#endif
-	if (r2 && r1) /* both failed! */
-		return r2 ? r2 : r1;
-	/* return success if at least one succeeded */
-	return 0;
-}
-
-static void __exit
-acx_e_cleanup_module(void)
-{
-#if defined(CONFIG_ACX_PCI)
-	acxpci_e_cleanup_module();
-#endif
-#if defined(CONFIG_ACX_USB)
-	acxusb_e_cleanup_module();
-#endif
-}
-
-module_init(acx_e_init_module)
-module_exit(acx_e_cleanup_module)
-
-
-
-
-
-
-
-
-
-
 //SM
 void
 acx_e_ieee80211_set_security(struct net_device *ndev,
diff --git a/pci.c b/pci.c
index ea9bee0..24224b9 100644
--- a/pci.c
+++ b/pci.c
@@ -105,6 +105,13 @@ static int acxpci_e_close(struct net_dev
 static void acxpci_s_up(struct net_device *ndev);
 static void acxpci_s_down(struct net_device *ndev);
 
+#ifdef MODULE_LICENSE
+MODULE_LICENSE("Dual MPL/GPL");
+#endif
+/* USB had this: MODULE_AUTHOR("Martin Wawro <martin.wawro AT uni-dortmund.de>"); */
+MODULE_AUTHOR("ACX100 Open Source Driver development team");
+MODULE_DESCRIPTION("Driver for TI ACX1xx based wireless cards (CardBus/PCI)");
+
 
 /***********************************************************************
 ** Register access
@@ -4192,3 +4199,6 @@ acxpci_e_cleanup_module(void)
 
 	FN_EXIT0;
 }
+
+module_init(acxpci_e_init_module);
+module_exit(acxpci_e_cleanup_module);
diff --git a/usb.c b/usb.c
index 116cf90..6b0b578 100644
--- a/usb.c
+++ b/usb.c
@@ -127,6 +127,14 @@ static void acxusb_i_tx_timeout(struct n
 /* static void dump_device_descriptor(struct usb_device_descriptor *); */
 /* static void dump_config_descriptor(struct usb_config_descriptor *); */
 
+#ifdef MODULE_LICENSE
+MODULE_LICENSE("Dual MPL/GPL");
+#endif
+/* USB had this: MODULE_AUTHOR("Martin Wawro <martin.wawro AT uni-dortmund.de>"); */
+MODULE_AUTHOR("ACX100 Open Source Driver development team");
+MODULE_DESCRIPTION("Driver for TI ACX1xx based wireless cards (USB)");
+
+
 /***********************************************************************
 ** Module Data
 */
@@ -1811,7 +1819,8 @@ acxusb_e_cleanup_module()
 	usb_deregister(&acxusb_driver);
 }
 
-
+module_init(acxusb_e_init_module);
+module_exit(acxusb_e_cleanup_module);
 /***********************************************************************
 ** DEBUG STUFF
 */
-- 
1.2.1.g62a4




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