staging: comedi: ni_pcidio: use comedi_load_firmware()

Use comedi_load_firmware() instead of duplicating the code in a
private function.

This driver loads multiple firmware images to the device. Modify
comedi_load_firmware() to take a 'context' that is passed to the
firmware upload callback function.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedidev.h

@@ -349,7 +349,9 @@ void comedi_spriv_free(struct comedi_device *, int subdev_num);
 int comedi_load_firmware(struct comedi_device *, struct device *,
 			 const char *name,
 			 int (*cb)(struct comedi_device *,
-				   const u8 *data, size_t size));
+				   const u8 *data, size_t size,
+				   unsigned long context),
+			 unsigned long context);
 
 int __comedi_request_region(struct comedi_device *,
 			    unsigned long start, unsigned long len);

drivers/staging/comedi/drivers.c

@@ -353,12 +353,15 @@ static void comedi_report_boards(struct comedi_driver *driv)
  * @hw_device: device struct for the comedi_device
  * @name: the name of the firmware image
  * @cb: callback to the upload the firmware image
+ * @context: private context from the driver
  */
 int comedi_load_firmware(struct comedi_device *dev,
 			 struct device *device,
 			 const char *name,
 			 int (*cb)(struct comedi_device *dev,
-				   const u8 *data, size_t size))
+				   const u8 *data, size_t size,
+				   unsigned long context),
+			 unsigned long context)
 {
 	const struct firmware *fw;
 	int ret;
@@ -368,7 +371,7 @@ int comedi_load_firmware(struct comedi_device *dev,
 
 	ret = request_firmware(&fw, name, device);
 	if (ret == 0) {
-		ret = cb(dev, fw->data, fw->size);
+		ret = cb(dev, fw->data, fw->size, context);
 		release_firmware(fw);
 	}
 

drivers/staging/comedi/drivers/daqboard2000.c

@@ -518,7 +518,8 @@ static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
 }
 
 static int initialize_daqboard2000(struct comedi_device *dev,
-				   const u8 *cpld_array, size_t len)
+				   const u8 *cpld_array, size_t len,
+				   unsigned long context)
 {
 	struct daqboard2000_private *devpriv = dev->private;
 	int result = -EIO;
@@ -704,7 +705,7 @@ static int daqboard2000_auto_attach(struct comedi_device *dev,
 
 	result = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
 				      DAQBOARD2000_FIRMWARE,
-				      initialize_daqboard2000);
+				      initialize_daqboard2000, 0);
 	if (result < 0)
 		return result;
 

drivers/staging/comedi/drivers/jr3_pci.c

@@ -325,8 +325,9 @@ static int read_idm_word(const u8 *data, size_t size, int *pos,
 	return result;
 }
 
-static int jr3_download_firmware(struct comedi_device *dev, const u8 *data,
-				 size_t size)
+static int jr3_download_firmware(struct comedi_device *dev,
+				 const u8 *data, size_t size,
+				 unsigned long context)
 {
 	/*
 	 * IDM file format is:
@@ -733,7 +734,7 @@ static int jr3_pci_auto_attach(struct comedi_device *dev,
 
 	result = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
 				      "comedi/jr3pci.idm",
-				      jr3_download_firmware);
+				      jr3_download_firmware, 0);
 	dev_dbg(dev->class_dev, "Firmare load %d\n", result);
 
 	if (result < 0)
@@ -745,7 +746,7 @@ static int jr3_pci_auto_attach(struct comedi_device *dev,
 	 *
 	 *     comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
 	 *                          "comedi/jr3_offsets_table",
-	 *                          jr3_download_firmware);
+	 *                          jr3_download_firmware, 1);
 	 */
 
 	/*

drivers/staging/comedi/drivers/me_daq.c

@@ -386,7 +386,8 @@ static int me_ao_insn_read(struct comedi_device *dev,
 }
 
 static int me2600_xilinx_download(struct comedi_device *dev,
-				  const u8 *data, size_t size)
+				  const u8 *data, size_t size,
+				  unsigned long context)
 {
 	struct me_private_data *dev_private = dev->private;
 	unsigned int value;
@@ -510,7 +511,7 @@ static int me_auto_attach(struct comedi_device *dev,
 	if (board->needs_firmware) {
 		ret = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
 					   ME2600_FIRMWARE,
-					   me2600_xilinx_download);
+					   me2600_xilinx_download, 0);
 		if (ret < 0)
 			return ret;
 	}

drivers/staging/comedi/drivers/ni_pcidio.c

@@ -53,7 +53,6 @@ comedi_nonfree_firmware tarball available from http://www.comedi.org
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
-#include <linux/firmware.h>
 
 #include "../comedidev.h"
 
@@ -966,11 +965,13 @@ static int ni_pcidio_change(struct comedi_device *dev,
 	return 0;
 }
 
-static int pci_6534_load_fpga(struct comedi_device *dev, int fpga_index,
-			      const u8 *data, size_t data_len)
+static int pci_6534_load_fpga(struct comedi_device *dev,
+			      const u8 *data, size_t data_len,
+			      unsigned long context)
 {
 	struct nidio96_private *devpriv = dev->private;
 	static const int timeout = 1000;
+	int fpga_index = context;
 	int i;
 	size_t j;
 
@@ -1028,7 +1029,7 @@ static int pci_6534_load_fpga(struct comedi_device *dev, int fpga_index,
 
 static int pci_6534_reset_fpga(struct comedi_device *dev, int fpga_index)
 {
-	return pci_6534_load_fpga(dev, fpga_index, NULL, 0);
+	return pci_6534_load_fpga(dev, NULL, 0, fpga_index);
 }
 
 static int pci_6534_reset_fpgas(struct comedi_device *dev)
@@ -1062,13 +1063,12 @@ static void pci_6534_init_main_fpga(struct comedi_device *dev)
 static int pci_6534_upload_firmware(struct comedi_device *dev)
 {
 	struct nidio96_private *devpriv = dev->private;
-	int ret;
-	const struct firmware *fw;
 	static const char *const fw_file[3] = {
 		FW_PCI_6534_SCARAB_DI,	/* loaded into scarab A for DI */
 		FW_PCI_6534_SCARAB_DO,	/* loaded into scarab B for DO */
 		FW_PCI_6534_MAIN,	/* loaded into main FPGA */
 	};
+	int ret;
 	int n;
 
 	ret = pci_6534_reset_fpgas(dev);
@@ -1076,14 +1076,11 @@ static int pci_6534_upload_firmware(struct comedi_device *dev)
 		return ret;
 	/* load main FPGA first, then the two scarabs */
 	for (n = 2; n >= 0; n--) {
-		ret = request_firmware(&fw, fw_file[n],
-				       &devpriv->mite->pcidev->dev);
-		if (ret == 0) {
-			ret = pci_6534_load_fpga(dev, n, fw->data, fw->size);
-			if (ret == 0 && n == 2)
-				pci_6534_init_main_fpga(dev);
-			release_firmware(fw);
-		}
+		ret = comedi_load_firmware(dev, &devpriv->mite->pcidev->dev,
+					   fw_file[n],
+					   pci_6534_load_fpga, n);
+		if (ret == 0 && n == 2)
+			pci_6534_init_main_fpga(dev);
 		if (ret < 0)
 			break;
 	}