diff mbox series

[-next,v4,2/2] media: cx231xx: Add EP5_BUF_SIZE and EP5_TIMEOUT_MS macros

Message ID 20230909083612.1845757-3-ruanjinjie@huawei.com
State New
Headers show
Series media: cx231xx: Switch to use kmemdup() helper and add two macros | expand

Commit Message

Jinjie Ruan Sept. 9, 2023, 8:36 a.m. UTC 
Define EP5_BUF_SIZE and EP5_TIMEOUT_MS macros to make the code
more readable.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
---
v4:
- Replace the other 4 places with EP5_BUF_SIZE.
v3:
- Adjust use kmemdup() helper to be the first patch as suggested.
---
 drivers/media/usb/cx231xx/cx231xx-417.c  | 9 ++++-----
 drivers/media/usb/cx231xx/cx231xx-core.c | 6 +++---
 drivers/media/usb/cx231xx/cx231xx.h      | 3 +++
 3 files changed, 10 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c
index c5e21785fafe..fe4410a5e128 100644
--- a/drivers/media/usb/cx231xx/cx231xx-417.c
+++ b/drivers/media/usb/cx231xx/cx231xx-417.c
@@ -937,7 +937,6 @@  static int cx231xx_load_firmware(struct cx231xx *dev)
 	u32 *p_current_fw, *p_fw;
 	u32 *p_fw_data;
 	int frame = 0;
-	u16 _buffer_size = 4096;
 	u8 *p_buffer;
 
 	p_current_fw = vmalloc(1884180 * 4);
@@ -947,7 +946,7 @@  static int cx231xx_load_firmware(struct cx231xx *dev)
 		return -ENOMEM;
 	}
 
-	p_buffer = vmalloc(4096);
+	p_buffer = vmalloc(EP5_BUF_SIZE);
 	if (p_buffer == NULL) {
 		dprintk(2, "FAIL!!!\n");
 		vfree(p_current_fw);
@@ -1030,9 +1029,9 @@  static int cx231xx_load_firmware(struct cx231xx *dev)
 
 	/*download the firmware by ep5-out*/
 
-	for (frame = 0; frame < (int)(CX231xx_FIRM_IMAGE_SIZE*20/_buffer_size);
+	for (frame = 0; frame < (int)(CX231xx_FIRM_IMAGE_SIZE*20/EP5_BUF_SIZE);
 	     frame++) {
-		for (i = 0; i < _buffer_size; i++) {
+		for (i = 0; i < EP5_BUF_SIZE; i++) {
 			*(p_buffer + i) = (u8)(*(p_fw + (frame * 128 * 8 + (i / 4))) & 0x000000FF);
 			i++;
 			*(p_buffer + i) = (u8)((*(p_fw + (frame * 128 * 8 + (i / 4))) & 0x0000FF00) >> 8);
@@ -1041,7 +1040,7 @@  static int cx231xx_load_firmware(struct cx231xx *dev)
 			i++;
 			*(p_buffer + i) = (u8)((*(p_fw + (frame * 128 * 8 + (i / 4))) & 0xFF000000) >> 24);
 		}
-		cx231xx_ep5_bulkout(dev, p_buffer, _buffer_size);
+		cx231xx_ep5_bulkout(dev, p_buffer, EP5_BUF_SIZE);
 	}
 
 	p_current_fw = p_fw;
diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c
index 746727ea1a4c..7b7e2a26ef93 100644
--- a/drivers/media/usb/cx231xx/cx231xx-core.c
+++ b/drivers/media/usb/cx231xx/cx231xx-core.c
@@ -751,12 +751,12 @@  int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 	int ret = -ENOMEM;
 	u32 *buffer;
 
-	buffer = kmemdup(firmware, 4096, GFP_KERNEL);
+	buffer = kmemdup(firmware, EP5_BUF_SIZE, GFP_KERNEL);
 	if (buffer == NULL)
 		return -ENOMEM;
 
 	ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
-			buffer, 4096, &actlen, 2000);
+			buffer, EP5_BUF_SIZE, &actlen, EP5_TIMEOUT_MS);
 
 	if (ret)
 		dev_err(dev->dev,
@@ -993,7 +993,7 @@  int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 	/* De-allocates all pending stuff */
 	cx231xx_uninit_isoc(dev);
 
-	dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
+	dma_q->p_left_data = kzalloc(EP5_BUF_SIZE, GFP_KERNEL);
 	if (dma_q->p_left_data == NULL)
 		return -ENOMEM;
 
diff --git a/drivers/media/usb/cx231xx/cx231xx.h b/drivers/media/usb/cx231xx/cx231xx.h
index 6929e4d97067..74339a6a2f71 100644
--- a/drivers/media/usb/cx231xx/cx231xx.h
+++ b/drivers/media/usb/cx231xx/cx231xx.h
@@ -120,6 +120,9 @@ 
 #define CX23417_OSC_EN   8
 #define CX23417_RESET    9
 
+#define EP5_BUF_SIZE     4096
+#define EP5_TIMEOUT_MS   2000
+
 struct cx23417_fmt {
 	u32   fourcc;          /* v4l2 format id */
 	int   depth;