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Message-Id: <200802071920.m17JKJMb029314@cmf.nrl.navy.mil>
Date: Thu, 07 Feb 2008 14:20:19 -0500
From: "chas williams - CONTRACTOR" <chas@....nrl.navy.mil>
To: David Miller <davem@...emloft.net>
cc: netdev@...r.kernel.org
Subject: Re: converting fore200e driver to use request_firmware()
In message <20080206.160542.07994571.davem@...emloft.net>,David Miller writes:
>> however, i ran into a little problem with the sbus interface. what should
>> i pass for 'struct device *' for an sbus device?
>
>"&sdev->ofdev.dev" should work
thanks! that is what i needed. so what i have works on pci and is
quite a bit cleaner than the current mess for the firmware. the only
iffy part is the conversion of the struct fore_200e to a struct device
which is depends your bus. perhaps it should be a seperate routine.
any comments on the following?
diff --git a/drivers/atm/Kconfig b/drivers/atm/Kconfig
index 1c7ae30..a5303ee 100644
--- a/drivers/atm/Kconfig
+++ b/drivers/atm/Kconfig
@@ -325,81 +325,21 @@ config ATM_IA_DEBUG
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
-config ATM_FORE200E_MAYBE
+config ATM_FORE200E
tristate "FORE Systems 200E-series"
- depends on PCI || SBUS
+ depends on (PCI || SBUS)
---help---
This is a driver for the FORE Systems 200E-series ATM adapter
cards. It simultaneously supports PCA-200E and SBA-200E models
on PCI and SBUS hosts. Say Y (or M to compile as a module
named fore_200e) here if you have one of these ATM adapters.
- Note that the driver will actually be compiled only if you
- additionally enable the support for PCA-200E and/or SBA-200E
- cards.
-
See the file <file:Documentation/networking/fore200e.txt> for
further details.
-config ATM_FORE200E_PCA
- bool "PCA-200E support"
- depends on ATM_FORE200E_MAYBE && PCI
- help
- Say Y here if you want your PCA-200E cards to be probed.
-
-config ATM_FORE200E_PCA_DEFAULT_FW
- bool "Use default PCA-200E firmware (normally enabled)"
- depends on ATM_FORE200E_PCA
- help
- Use the default PCA-200E firmware data shipped with the driver.
-
- Normal users do not have to deal with the firmware stuff, so
- they should say Y here.
-
-config ATM_FORE200E_PCA_FW
- string "Pathname of user-supplied binary firmware"
- depends on ATM_FORE200E_PCA && !ATM_FORE200E_PCA_DEFAULT_FW
- default ""
- help
- This defines the pathname of an alternative PCA-200E binary
- firmware image supplied by the user. This pathname may be
- absolute or relative to the drivers/atm directory.
-
- The driver comes with an adequate firmware image, so normal users do
- not have to supply an alternative one. They just say Y to "Use
- default PCA-200E firmware" instead.
-
-config ATM_FORE200E_SBA
- bool "SBA-200E support"
- depends on ATM_FORE200E_MAYBE && SBUS
- help
- Say Y here if you want your SBA-200E cards to be probed.
-
-config ATM_FORE200E_SBA_DEFAULT_FW
- bool "Use default SBA-200E firmware (normally enabled)"
- depends on ATM_FORE200E_SBA
- help
- Use the default SBA-200E firmware data shipped with the driver.
-
- Normal users do not have to deal with the firmware stuff, so
- they should say Y here.
-
-config ATM_FORE200E_SBA_FW
- string "Pathname of user-supplied binary firmware"
- depends on ATM_FORE200E_SBA && !ATM_FORE200E_SBA_DEFAULT_FW
- default ""
- help
- This defines the pathname of an alternative SBA-200E binary
- firmware image supplied by the user. This pathname may be
- absolute or relative to the drivers/atm directory.
-
- The driver comes with an adequate firmware image, so normal users do
- not have to supply an alternative one. They just say Y to "Use
- default SBA-200E firmware", above.
-
config ATM_FORE200E_USE_TASKLET
bool "Defer interrupt work to a tasklet"
- depends on (PCI || SBUS) && (ATM_FORE200E_PCA || ATM_FORE200E_SBA)
+ depends on ATM_FORE200E
default n
help
This defers work to be done by the interrupt handler to a
@@ -408,7 +348,7 @@ config ATM_FORE200E_USE_TASKLET
config ATM_FORE200E_TX_RETRY
int "Maximum number of tx retries"
- depends on (PCI || SBUS) && (ATM_FORE200E_PCA || ATM_FORE200E_SBA)
+ depends on ATM_FORE200E
default "16"
---help---
Specifies the number of times the driver attempts to transmit
@@ -425,7 +365,7 @@ config ATM_FORE200E_TX_RETRY
config ATM_FORE200E_DEBUG
int "Debugging level (0-3)"
- depends on (PCI || SBUS) && (ATM_FORE200E_PCA || ATM_FORE200E_SBA)
+ depends on ATM_FORE200E
default "0"
help
Specifies the level of debugging messages issued by the driver.
@@ -436,12 +376,6 @@ config ATM_FORE200E_DEBUG
the performances of the driver, and the size of your syslog files!
Keep the debugging level to 0 during normal operations.
-config ATM_FORE200E
- tristate
- depends on (PCI || SBUS) && (ATM_FORE200E_PCA || ATM_FORE200E_SBA)
- default m if ATM_FORE200E_MAYBE!=y
- default y if ATM_FORE200E_MAYBE=y
-
config ATM_HE
tristate "ForeRunner HE Series"
depends on PCI
diff --git a/drivers/atm/Makefile b/drivers/atm/Makefile
index e4fa996..4109583 100644
--- a/drivers/atm/Makefile
+++ b/drivers/atm/Makefile
@@ -3,14 +3,11 @@
#
fore_200e-objs := fore200e.o
-hostprogs-y := fore200e_mkfirm
# Files generated that shall be removed upon make clean
clean-files := atmsar11.bin atmsar11.bin1 atmsar11.bin2 pca200e.bin \
pca200e.bin1 pca200e.bin2 pca200e_ecd.bin pca200e_ecd.bin1 \
pca200e_ecd.bin2 sba200e_ecd.bin sba200e_ecd.bin1 sba200e_ecd.bin2
-# Firmware generated that shall be removed upon make clean
-clean-files += fore200e_pca_fw.c fore200e_sba_fw.c
obj-$(CONFIG_ATM_ZATM) += zatm.o uPD98402.o
obj-$(CONFIG_ATM_NICSTAR) += nicstar.o
@@ -36,37 +33,11 @@ obj-$(CONFIG_ATM_TCP) += atmtcp.o
obj-$(CONFIG_ATM_FIRESTREAM) += firestream.o
obj-$(CONFIG_ATM_LANAI) += lanai.o
-ifeq ($(CONFIG_ATM_FORE200E_PCA),y)
- fore_200e-objs += fore200e_pca_fw.o
- # guess the target endianess to choose the right PCA-200E firmware image
- ifeq ($(CONFIG_ATM_FORE200E_PCA_DEFAULT_FW),y)
- byteorder.h := include$(if $(patsubst $(srctree),,$(objtree)),2)/asm/byteorder.h
- CONFIG_ATM_FORE200E_PCA_FW := $(obj)/pca200e$(if $(shell $(CC) $(KBUILD_CPPFLAGS) -E -dM $(byteorder.h) | grep ' __LITTLE_ENDIAN '),.bin,_ecd.bin2)
- endif
-endif
-
-ifeq ($(CONFIG_ATM_FORE200E_SBA),y)
- fore_200e-objs += fore200e_sba_fw.o
- ifeq ($(CONFIG_ATM_FORE200E_SBA_DEFAULT_FW),y)
- CONFIG_ATM_FORE200E_SBA_FW := $(obj)/sba200e_ecd.bin2
- endif
-endif
obj-$(CONFIG_ATM_HE) += he.o
ifeq ($(CONFIG_ATM_HE_USE_SUNI),y)
obj-$(CONFIG_ATM_HE) += suni.o
endif
-# FORE Systems 200E-series firmware magic
-$(obj)/fore200e_pca_fw.c: $(patsubst "%", %, $(CONFIG_ATM_FORE200E_PCA_FW)) \
- $(obj)/fore200e_mkfirm
- $(obj)/fore200e_mkfirm -k -b _fore200e_pca_fw \
- -i $(CONFIG_ATM_FORE200E_PCA_FW) -o $@
-
-$(obj)/fore200e_sba_fw.c: $(patsubst "%", %, $(CONFIG_ATM_FORE200E_SBA_FW)) \
- $(obj)/fore200e_mkfirm
- $(obj)/fore200e_mkfirm -k -b _fore200e_sba_fw \
- -i $(CONFIG_ATM_FORE200E_SBA_FW) -o $@
-
# deal with the various suffixes of the binary firmware images
$(obj)/%.bin $(obj)/%.bin1 $(obj)/%.bin2: $(src)/%.data
objcopy -Iihex $< -Obinary $@.gz
diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
index 6b4512c..f365174 100644
--- a/drivers/atm/fore200e.c
+++ b/drivers/atm/fore200e.c
@@ -36,6 +36,7 @@
#include <linux/atm_suni.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
+#include <linux/firmware.h>
#include <asm/io.h>
#include <asm/string.h>
#include <asm/page.h>
@@ -45,7 +46,7 @@
#include <asm/uaccess.h>
#include <asm/atomic.h>
-#ifdef CONFIG_ATM_FORE200E_SBA
+#ifdef CONFIG_SBUS
#include <asm/idprom.h>
#include <asm/sbus.h>
#include <asm/openprom.h>
@@ -382,9 +383,6 @@ fore200e_shutdown(struct fore200e* fore200e)
case FORE200E_STATE_START_FW:
/* nothing to do for that state */
- case FORE200E_STATE_LOAD_FW:
- /* nothing to do for that state */
-
case FORE200E_STATE_RESET:
/* nothing to do for that state */
@@ -405,7 +403,7 @@ fore200e_shutdown(struct fore200e* fore200e)
}
-#ifdef CONFIG_ATM_FORE200E_PCA
+#ifdef CONFIG_PCI
static u32 fore200e_pca_read(volatile u32 __iomem *addr)
{
@@ -658,10 +656,10 @@ fore200e_pca_proc_read(struct fore200e* fore200e, char *page)
pci_dev->bus->number, PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
}
-#endif /* CONFIG_ATM_FORE200E_PCA */
+#endif /* CONFIG_PCI */
-#ifdef CONFIG_ATM_FORE200E_SBA
+#ifdef CONFIG_SBUS
static u32
fore200e_sba_read(volatile u32 __iomem *addr)
@@ -909,7 +907,7 @@ fore200e_sba_proc_read(struct fore200e* fore200e, char *page)
return sprintf(page, " SBUS slot/device:\t\t%d/'%s'\n", sbus_dev->slot, sbus_dev->prom_name);
}
-#endif /* CONFIG_ATM_FORE200E_SBA */
+#endif /* CONFIG_SBUS */
static void
@@ -2556,11 +2554,45 @@ fore200e_monitor_puts(struct fore200e* fore200e, char* str)
static int __devinit
-fore200e_start_fw(struct fore200e* fore200e)
-{
- int ok;
- char cmd[ 48 ];
- struct fw_header* fw_header = (struct fw_header*) fore200e->bus->fw_data;
+fore200e_load_and_start_fw(struct fore200e* fore200e)
+{
+ const struct firmware *firmware;
+ struct device *device;
+ struct fw_header *fw_header;
+ u32 *fw_data, fw_size;
+ u32 __iomem *load_addr;
+ char buf[48];
+ int err = -ENODEV;
+
+ if (strcmp(fore200e->bus->model_name, "PCA-200E") == 0)
+ device = &((struct pci_dev *) fore200e->bus_dev)->dev;
+#ifdef CONFIG_SBUS
+ else if (strcmp(fore200e->bus->model_name, "SBA-200E") == 0)
+ device = &((struct sbus_dev *) fore200e->bus_dev)->ofdev.dev;
+#endif
+ else
+ return err;
+
+ sprintf(buf, "%s.bin", fore200e->bus->proc_name);
+ if (request_firmware(&firmware, buf, device) == 1) {
+ return err;
+ }
+
+ fw_data = (u32 *) firmware->data;
+ fw_size = firmware->size / sizeof(u32);
+ fw_header = (struct fw_header*) fw_data;
+ load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset);
+
+ DPRINTK(2, "device %s firmware being loaded at 0x%p (%d words)\n",
+ fore200e->name, load_addr, fw_size);
+
+ if (le32_to_cpu(fw_header->magic) != FW_HEADER_MAGIC) {
+ printk(FORE200E "corrupted %s firmware image\n", fore200e->bus->model_name);
+ goto release;
+ }
+
+ for (; fw_size--; fw_data++, load_addr++)
+ fore200e->bus->write(le32_to_cpu(*fw_data), load_addr);
DPRINTK(2, "device %s firmware being started\n", fore200e->name);
@@ -2569,46 +2601,22 @@ fore200e_start_fw(struct fore200e* fore200e)
fore200e_spin(100);
#endif
- sprintf(cmd, "\rgo %x\r", le32_to_cpu(fw_header->start_offset));
-
- fore200e_monitor_puts(fore200e, cmd);
+ sprintf(buf, "\rgo %x\r", le32_to_cpu(fw_header->start_offset));
+ fore200e_monitor_puts(fore200e, buf);
- ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_CP_RUNNING, 1000);
- if (ok == 0) {
+ if (fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_CP_RUNNING, 1000) == 0) {
printk(FORE200E "device %s firmware didn't start\n", fore200e->name);
- return -ENODEV;
+ goto release;
}
printk(FORE200E "device %s firmware started\n", fore200e->name);
fore200e->state = FORE200E_STATE_START_FW;
- return 0;
-}
-
+ err = 0;
-static int __devinit
-fore200e_load_fw(struct fore200e* fore200e)
-{
- u32* fw_data = (u32*) fore200e->bus->fw_data;
- u32 fw_size = (u32) *fore200e->bus->fw_size / sizeof(u32);
-
- struct fw_header* fw_header = (struct fw_header*) fw_data;
-
- u32 __iomem *load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset);
-
- DPRINTK(2, "device %s firmware being loaded at 0x%p (%d words)\n",
- fore200e->name, load_addr, fw_size);
-
- if (le32_to_cpu(fw_header->magic) != FW_HEADER_MAGIC) {
- printk(FORE200E "corrupted %s firmware image\n", fore200e->bus->model_name);
- return -ENODEV;
- }
-
- for (; fw_size--; fw_data++, load_addr++)
- fore200e->bus->write(le32_to_cpu(*fw_data), load_addr);
-
- fore200e->state = FORE200E_STATE_LOAD_FW;
- return 0;
+release:
+ release_firmware(firmware);
+ return err;
}
@@ -2654,10 +2662,7 @@ fore200e_init(struct fore200e* fore200e)
if (fore200e_reset(fore200e, 1) < 0)
return -ENODEV;
- if (fore200e_load_fw(fore200e) < 0)
- return -ENODEV;
-
- if (fore200e_start_fw(fore200e) < 0)
+ if (fore200e_load_and_start_fw(fore200e) < 0)
return -ENODEV;
if (fore200e_initialize(fore200e) < 0)
@@ -2691,7 +2696,7 @@ fore200e_init(struct fore200e* fore200e)
return 0;
}
-#ifdef CONFIG_ATM_FORE200E_PCA
+#ifdef CONFIG_PCI
static int __devinit
fore200e_pca_detect(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent)
{
@@ -2806,7 +2811,7 @@ fore200e_module_init(void)
}
}
-#ifdef CONFIG_ATM_FORE200E_PCA
+#ifdef CONFIG_PCI
if (!pci_register_driver(&fore200e_pca_driver))
return 0;
#endif
@@ -2823,7 +2828,7 @@ fore200e_module_cleanup(void)
{
struct fore200e *fore200e, *next;
-#ifdef CONFIG_ATM_FORE200E_PCA
+#ifdef CONFIG_PCI
pci_unregister_driver(&fore200e_pca_driver);
#endif
@@ -3142,19 +3147,9 @@ static const struct atmdev_ops fore200e_ops =
};
-#ifdef CONFIG_ATM_FORE200E_PCA
-extern const unsigned char _fore200e_pca_fw_data[];
-extern const unsigned int _fore200e_pca_fw_size;
-#endif
-#ifdef CONFIG_ATM_FORE200E_SBA
-extern const unsigned char _fore200e_sba_fw_data[];
-extern const unsigned int _fore200e_sba_fw_size;
-#endif
-
static const struct fore200e_bus fore200e_bus[] = {
-#ifdef CONFIG_ATM_FORE200E_PCA
+#ifdef CONFIG_PCI
{ "PCA-200E", "pca200e", 32, 4, 32,
- _fore200e_pca_fw_data, &_fore200e_pca_fw_size,
fore200e_pca_read,
fore200e_pca_write,
fore200e_pca_dma_map,
@@ -3175,9 +3170,8 @@ static const struct fore200e_bus fore200e_bus[] = {
fore200e_pca_proc_read,
},
#endif
-#ifdef CONFIG_ATM_FORE200E_SBA
+#ifdef CONFIG_SBUS
{ "SBA-200E", "sba200e", 32, 64, 32,
- _fore200e_sba_fw_data, &_fore200e_sba_fw_size,
fore200e_sba_read,
fore200e_sba_write,
fore200e_sba_dma_map,
diff --git a/drivers/atm/fore200e.h b/drivers/atm/fore200e.h
index b85a546..73a185d 100644
--- a/drivers/atm/fore200e.h
+++ b/drivers/atm/fore200e.h
@@ -755,7 +755,6 @@ typedef enum fore200e_state {
FORE200E_STATE_CONFIGURE, /* bus interface configured */
FORE200E_STATE_MAP, /* board space mapped in host memory */
FORE200E_STATE_RESET, /* board resetted */
- FORE200E_STATE_LOAD_FW, /* firmware loaded */
FORE200E_STATE_START_FW, /* firmware started */
FORE200E_STATE_INITIALIZE, /* initialize command successful */
FORE200E_STATE_INIT_CMDQ, /* command queue initialized */
@@ -804,8 +803,6 @@ typedef struct fore200e_bus {
int descr_alignment; /* tpd/rpd/rbd DMA alignment requirement */
int buffer_alignment; /* rx buffers DMA alignment requirement */
int status_alignment; /* status words DMA alignment requirement */
- const unsigned char* fw_data; /* address of firmware data start */
- const unsigned int* fw_size; /* address of firmware data size */
u32 (*read)(volatile u32 __iomem *);
void (*write)(u32, volatile u32 __iomem *);
u32 (*dma_map)(struct fore200e*, void*, int, int);
--
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