From 7880f6613814e737de829911b204d7bc1f2ccb49 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Wed, 13 May 2009 14:25:29 -0300 Subject: [PATCH] V4L/DVB (11868): gspca - spca508: Optimize code. Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/spca508.c | 46 ++++++++++------------------- 1 file changed, 16 insertions(+), 30 deletions(-) diff --git a/drivers/media/video/gspca/spca508.c b/drivers/media/video/gspca/spca508.c index 5896bfe2ffd1..2ed2669bac3e 100644 --- a/drivers/media/video/gspca/spca508.c +++ b/drivers/media/video/gspca/spca508.c @@ -1305,16 +1305,16 @@ static int reg_read(struct gspca_dev *gspca_dev, } static int write_vector(struct gspca_dev *gspca_dev, - const u16 data[][2]) + const u16 (*data)[2]) { struct usb_device *dev = gspca_dev->dev; - int ret, i = 0; + int ret; - while (data[i][1] != 0) { - ret = reg_write(dev, data[i][1], data[i][0]); + while ((*data)[1] != 0) { + ret = reg_write(dev, (*data)[1], (*data)[0]); if (ret < 0) return ret; - i++; + data++; } return 0; } @@ -1326,6 +1326,15 @@ static int sd_config(struct gspca_dev *gspca_dev, struct sd *sd = (struct sd *) gspca_dev; struct cam *cam; int data1, data2; + const u16 (*init_data)[2]; + static const u16 (*(init_data_tb[]))[2] = { + spca508_vista_init_data, /* CreativeVista 0 */ + spca508_sightcam_init_data, /* HamaUSBSightcam 1 */ + spca508_sightcam2_init_data, /* HamaUSBSightcam2 2 */ + spca508cs110_init_data, /* IntelEasyPCCamera 3 */ + spca508cs110_init_data, /* MicroInnovationIC200 4 */ + spca508_init_data, /* ViewQuestVQ110 5 */ + }; /* Read from global register the USB product and vendor IDs, just to * prove that we can communicate with the device. This works, which @@ -1349,31 +1358,8 @@ static int sd_config(struct gspca_dev *gspca_dev, sd->subtype = id->driver_info; sd->brightness = BRIGHTNESS_DEF; - switch (sd->subtype) { - case ViewQuestVQ110: - if (write_vector(gspca_dev, spca508_init_data)) - return -1; - break; - default: -/* case MicroInnovationIC200: */ -/* case IntelEasyPCCamera: */ - if (write_vector(gspca_dev, spca508cs110_init_data)) - return -1; - break; - case HamaUSBSightcam: - if (write_vector(gspca_dev, spca508_sightcam_init_data)) - return -1; - break; - case HamaUSBSightcam2: - if (write_vector(gspca_dev, spca508_sightcam2_init_data)) - return -1; - break; - case CreativeVista: - if (write_vector(gspca_dev, spca508_vista_init_data)) - return -1; - break; - } - return 0; /* success */ + init_data = init_data_tb[sd->subtype]; + return write_vector(gspca_dev, init_data); } /* this function is called at probe and resume time */ -- 2.34.1