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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>
This commit is contained in:
Daniel Mack 2011-04-23 20:56:43 +02:00 committed by Takashi Iwai
parent 30282f96d1
commit 8ae9572b5b
2 changed files with 3 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
sound/usb/6fire/firmware.c
View File

@ -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) {

1
sound/usb/Kconfig
View File

@ -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