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path: root/drivers/usb/misc/emi62.c
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Diffstat (limited to 'drivers/usb/misc/emi62.c')
-rw-r--r--drivers/usb/misc/emi62.c85
1 files changed, 21 insertions, 64 deletions
diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c
index fc15ad4c313..1d9be4431b7 100644
--- a/drivers/usb/misc/emi62.c
+++ b/drivers/usb/misc/emi62.c
@@ -10,7 +10,6 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
-#include <linux/init.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/delay.h>
@@ -46,9 +45,6 @@ static int emi62_set_reset(struct usb_device *dev, unsigned char reset_bit);
static int emi62_load_firmware (struct usb_device *dev);
static int emi62_probe(struct usb_interface *intf, const struct usb_device_id *id);
static void emi62_disconnect(struct usb_interface *intf);
-static int __init emi62_init (void);
-static void __exit emi62_exit (void);
-
/* thanks to drivers/usb/serial/keyspan_pda.c code */
static int emi62_writememory(struct usb_device *dev, int address,
@@ -59,7 +55,7 @@ static int emi62_writememory(struct usb_device *dev, int address,
unsigned char *buffer = kmemdup(data, length, GFP_KERNEL);
if (!buffer) {
- err("emi62: kmalloc(%d) failed.", length);
+ dev_err(&dev->dev, "kmalloc(%d) failed.\n", length);
return -ENOMEM;
}
/* Note: usb_control_msg returns negative value on error or length of the
@@ -76,9 +72,8 @@ static int emi62_set_reset (struct usb_device *dev, unsigned char reset_bit)
dev_info(&dev->dev, "%s - %d\n", __func__, reset_bit);
response = emi62_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0);
- if (response < 0) {
- err("emi62: set_reset (%d) failed", reset_bit);
- }
+ if (response < 0)
+ dev_err(&dev->dev, "set_reset (%d) failed\n", reset_bit);
return response;
}
@@ -90,18 +85,15 @@ static int emi62_load_firmware (struct usb_device *dev)
const struct firmware *bitstream_fw = NULL;
const struct firmware *firmware_fw = NULL;
const struct ihex_binrec *rec;
- int err;
+ int err = -ENOMEM;
int i;
__u32 addr; /* Address to write */
__u8 *buf;
dev_dbg(&dev->dev, "load_firmware\n");
buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL);
- if (!buf) {
- err( "%s - error loading firmware: error = %d", __func__, -ENOMEM);
- err = -ENOMEM;
+ if (!buf)
goto wraperr;
- }
err = request_ihex_firmware(&loader_fw, "emi62/loader.fw", &dev->dev);
if (err)
@@ -115,16 +107,13 @@ static int emi62_load_firmware (struct usb_device *dev)
err = request_ihex_firmware(&firmware_fw, FIRMWARE_FW, &dev->dev);
if (err) {
nofw:
- err( "%s - request_firmware() failed", __func__);
goto wraperr;
}
/* Assert reset (stop the CPU in the EMI) */
err = emi62_set_reset(dev,1);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
rec = (const struct ihex_binrec *)loader_fw->data;
@@ -133,19 +122,15 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_INTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
rec = ihex_next_binrec(rec);
}
/* De-assert reset (let the CPU run) */
err = emi62_set_reset(dev,0);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
msleep(250); /* let device settle */
/* 2. We upload the FPGA firmware into the EMI
@@ -163,18 +148,14 @@ static int emi62_load_firmware (struct usb_device *dev)
rec = ihex_next_binrec(rec);
}
err = emi62_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
} while (rec);
/* Assert reset (stop the CPU in the EMI) */
err = emi62_set_reset(dev,1);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
/* 3. We need to put the loader for the firmware into the EZ-USB (again...) */
for (rec = (const struct ihex_binrec *)loader_fw->data;
@@ -182,18 +163,14 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_INTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
}
/* De-assert reset (let the CPU run) */
err = emi62_set_reset(dev,0);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
msleep(250); /* let device settle */
/* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */
@@ -204,19 +181,15 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_EXTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
}
}
/* Assert reset (stop the CPU in the EMI) */
err = emi62_set_reset(dev,1);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
for (rec = (const struct ihex_binrec *)firmware_fw->data;
rec; rec = ihex_next_binrec(rec)) {
@@ -224,19 +197,15 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_EXTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
}
}
/* De-assert reset (let the CPU run) */
err = emi62_set_reset(dev,0);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
msleep(250); /* let device settle */
release_firmware(loader_fw);
@@ -250,6 +219,9 @@ static int emi62_load_firmware (struct usb_device *dev)
return 1;
wraperr:
+ if (err < 0)
+ dev_err(&dev->dev,"%s - error loading firmware: error = %d\n",
+ __func__, err);
release_firmware(loader_fw);
release_firmware(bitstream_fw);
release_firmware(firmware_fw);
@@ -259,7 +231,7 @@ wraperr:
return err;
}
-static const struct usb_device_id id_table[] __devinitconst = {
+static const struct usb_device_id id_table[] = {
{ USB_DEVICE(EMI62_VENDOR_ID, EMI62_PRODUCT_ID) },
{ } /* Terminating entry */
};
@@ -290,22 +262,7 @@ static struct usb_driver emi62_driver = {
.id_table = id_table,
};
-static int __init emi62_init (void)
-{
- int retval;
- retval = usb_register (&emi62_driver);
- if (retval)
- printk(KERN_ERR "adi-emi: registration failed\n");
- return retval;
-}
-
-static void __exit emi62_exit (void)
-{
- usb_deregister (&emi62_driver);
-}
-
-module_init(emi62_init);
-module_exit(emi62_exit);
+module_usb_driver(emi62_driver);
MODULE_AUTHOR("Tapio Laxström");
MODULE_DESCRIPTION("Emagic EMI 6|2m firmware loader.");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 08:11:23 +0000