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authorTakashi Iwai <tiwai@suse.de>2005-07-27 11:26:59 -0400
committerJaroslav Kysela <perex@suse.cz>2005-07-28 06:27:02 -0400
commit7b566054b33474cdd674289a8c7dd282c02e536e (patch)
tree4846845e402718e8015500f712ae91c2c9d17a2e /sound
parentfb92e6f05e84f6c217d786208e2ed5acf633b6ce (diff)
[ALSA] vx-driver - Fix the calculation of frequency parameter
Digigram VX core Fixed the calculation of frequency parameter of vx boards. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/drivers/vx/vx_uer.c46
1 files changed, 18 insertions, 28 deletions
diff --git a/sound/drivers/vx/vx_uer.c b/sound/drivers/vx/vx_uer.c
index 18114713c3b3..4fc38bde34f4 100644
--- a/sound/drivers/vx/vx_uer.c
+++ b/sound/drivers/vx/vx_uer.c
@@ -162,34 +162,24 @@ static int vx_read_uer_status(vx_core_t *chip, int *mode)
162 162
163static int vx_calc_clock_from_freq(vx_core_t *chip, int freq) 163static int vx_calc_clock_from_freq(vx_core_t *chip, int freq)
164{ 164{
165#define XX_FECH48000 0x0000004B 165 int hexfreq;
166#define XX_FECH32000 0x00000171 166
167#define XX_FECH24000 0x0000024B 167 snd_assert(freq > 0, return 0);
168#define XX_FECH16000 0x00000371 168
169#define XX_FECH12000 0x0000044B 169 hexfreq = (28224000 * 10) / freq;
170#define XX_FECH8000 0x00000571 170 hexfreq = (hexfreq + 5) / 10;
171#define XX_FECH44100 0x0000007F 171
172#define XX_FECH29400 0x0000016F 172 /* max freq = 55125 Hz */
173#define XX_FECH22050 0x0000027F 173 snd_assert(hexfreq > 0x00000200, return 0);
174#define XX_FECH14000 0x000003EF 174
175#define XX_FECH11025 0x0000047F 175 if (hexfreq <= 0x03ff)
176#define XX_FECH7350 0x000005BF 176 return hexfreq - 0x00000201;
177 177 if (hexfreq <= 0x07ff)
178 switch (freq) { 178 return (hexfreq / 2) - 1;
179 case 48000: return XX_FECH48000; 179 if (hexfreq <= 0x0fff)
180 case 44100: return XX_FECH44100; 180 return (hexfreq / 4) + 0x000001ff;
181 case 32000: return XX_FECH32000; 181
182 case 29400: return XX_FECH29400; 182 return 0x5fe; /* min freq = 6893 Hz */
183 case 24000: return XX_FECH24000;
184 case 22050: return XX_FECH22050;
185 case 16000: return XX_FECH16000;
186 case 14000: return XX_FECH14000;
187 case 12000: return XX_FECH12000;
188 case 11025: return XX_FECH11025;
189 case 8000: return XX_FECH8000;
190 case 7350: return XX_FECH7350;
191 default: return freq; /* The value is already correct */
192 }
193} 183}
194 184
195 185