diff options
| author | Daniel Mack <zonque@gmail.com> | 2011-04-23 20:56:43 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-04-26 12:26:12 +0200 |
| commit | 8ae9572b5b08f1d2a2ea6613f59d00f741b38b2d (patch) | |
| tree | 6f42742e2bfebec8dc986dae6eb1316e40b73f21 | |
| parent | 30282f96d1eef33be774d4ecf4bddba30a6152ec (diff) | |
ALSA: 6fire: use the kernel's built-in bit reverse table
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Torsten Schenk <torsten.schenk@zoho.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/usb/6fire/firmware.c | 29 | ||||
| -rw-r--r-- | sound/usb/Kconfig | 1 |
2 files changed, 3 insertions, 27 deletions
diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c index e720035fbd1e..45ffa12f0dab 100644 --- a/sound/usb/6fire/firmware.c +++ b/sound/usb/6fire/firmware.c @@ -15,6 +15,7 @@ */ #include <linux/firmware.h> +#include <linux/bitrev.h> #include "firmware.h" #include "chip.h" @@ -27,32 +28,6 @@ enum { FPGA_BUFSIZE = 512, FPGA_EP = 2 }; -static const u8 BIT_REVERSE_TABLE[256] = { - 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, - 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, - 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04, - 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, - 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, - 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82, - 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, - 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, - 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46, - 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, - 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, - 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1, - 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, - 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, - 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25, - 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, - 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, - 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, - 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 0x0b, - 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, - 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, - 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f, - 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, - 0xbf, 0x7f, 0xff }; - /* * wMaxPacketSize of pcm endpoints. * keep synced with rates_in_packet_size and rates_out_packet_size in pcm.c @@ -338,7 +313,7 @@ static int usb6fire_fw_fpga_upload( while (c != end) { for (i = 0; c != end && i < FPGA_BUFSIZE; i++, c++) - buffer[i] = BIT_REVERSE_TABLE[(u8) *c]; + buffer[i] = byte_rev_table[(u8) *c]; ret = usb6fire_fw_fpga_write(device, buffer, i); if (ret < 0) { diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig index cc47a9caec9d..8beb77563da2 100644 --- a/sound/usb/Kconfig +++ b/sound/usb/Kconfig @@ -101,6 +101,7 @@ config SND_USB_US122L config SND_USB_6FIRE tristate "TerraTec DMX 6Fire USB" select FW_LOADER + select BITREVERSE select SND_RAWMIDI select SND_PCM help |