iRiver UDA1380 driver by Andy Young

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6204 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 306 insertions, 0 deletions

diff --git a/firmware/drivers/uda1380.c b/firmware/drivers/uda1380.c
new file mode 100644
index 0000000..e8b8c14
--- /dev/null
+++ b/firmware/drivers/uda1380.c
@@ -0,0 +1,145 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2005 by Andy Young
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "lcd.h"
+#include "cpu.h"
+#include "kernel.h"
+#include "thread.h"
+#include "power.h"
+#include "debug.h"
+#include "system.h"
+#include "sprintf.h"
+#include "button.h"
+#include "string.h"
+#include "file.h"
+#include "buffer.h"
+
+#include "i2c-h100.h"
+#include "uda1380.h"
+
+/* ------------------------------------------------- */
+/* Local functions and variables */
+/* ------------------------------------------------- */
+
+int uda1380_write_reg(unsigned char reg, unsigned short value);
+unsigned short uda1380_regs[0x30];
+
+/* Definition of a good (?) configuration to start with */
+/* Not enabling ADC for now.. */
+
+#define NUM_DEFAULT_REGS 13
+unsigned short uda1380_defaults[2*NUM_DEFAULT_REGS] = 
+{
+        REG_0,        EN_DAC | EN_INT | EN_DEC | SYSCLK_256FS | WSPLL_25_50,
+        REG_I2S,      I2S_IFMT_IIS,
+        REG_PWR,      PON_PLL | PON_HP | PON_DAC | EN_AVC | PON_AVC | PON_BIAS,
+        REG_AMIX,     AMIX_RIGHT(0x10) | AMIX_LEFT(0x10), /* 00=max, 3f=mute */
+        REG_MASTER_VOL, MASTER_VOL_LEFT(0x7f) | MASTER_VOL_RIGHT(0x7f), /* 00=max, ff=mute */
+        REG_MIX_VOL,    MIX_VOL_CHANNEL_1(0) | MIX_VOL_CHANNEL_2(0xff), /* 00=max, ff=mute */
+        REG_EQ,         0,
+        REG_MUTE,       MUTE_CH2, /* Mute channel 2 (digital decimation filter) */
+        REG_MIX_CTL,    0,
+        REG_DEC_VOL,    0,
+        REG_PGA,        MUTE_ADC,
+        REG_ADC,        SKIP_DCFIL,
+        REG_AGC,        0
+};
+
+/* Returns 0 if register was written or -1 if write failed */
+int uda1380_write_reg(unsigned char reg, unsigned short value)
+{
+    unsigned char data[4];
+
+    data[0] = UDA1380_ADDR;
+    data[1] = reg;
+    data[2] = value >> 8;
+    data[3] = value & 0xff;
+
+    if (i2c_write(1, data, 4) != 4)
+    {
+        DEBUGF("uda1380 error reg=0x%x", reg);
+        return -1;
+    } 
+
+    uda1380_regs[reg] = value;
+
+    return 0;
+}
+
+/**
+ * Sets the master volume
+ *
+ * \param vol Range [0..255] 0=max, 255=mute
+ *
+ */
+int uda1380_setvol(int vol)
+{
+    return uda1380_write_reg(REG_MASTER_VOL,
+                             MASTER_VOL_LEFT(vol) | MASTER_VOL_RIGHT(vol));
+}
+
+/**
+ * Mute (mute=1) or enable sound (mute=0)
+ *
+ */
+int uda1380_mute(int mute)
+{
+    unsigned int value = uda1380_regs[REG_MUTE];
+
+    if (mute)
+        value = value | MUTE_MASTER;
+    else
+        value = value & ~MUTE_MASTER;
+
+    return uda1380_write_reg(REG_MUTE, value);
+}
+
+/* Returns 0 if successful or -1 if some register failed */
+int uda1380_set_regs(void)
+{
+    int i;
+    memset(uda1380_regs, 0, sizeof(uda1380_regs));
+
+    /* Initialize all registers */
+    for (i=0; i<NUM_DEFAULT_REGS; i++)
+    {
+        unsigned char reg = uda1380_defaults[i*2+0];
+        unsigned short value = uda1380_defaults[i*2+1];
+
+        if (uda1380_write_reg(reg, value) == -1)
+            return -1;
+    }
+
+    return 0;
+}
+
+/* Initialize UDA1380 codec with default register values (uda1380_defaults) */
+int uda1380_init(void)
+{
+    if (uda1380_set_regs() == -1)
+        return -1;
+    
+    return 0;
+}
+
+/* Nice shutdown of UDA1380 codec */
+void uda1380_close(void)
+{
+    uda1380_write_reg(REG_PWR, 0);  /* Disable power    */
+    uda1380_write_reg(REG_0, 0);    /* Disable codec    */
+}
diff --git a/firmware/export/uda1380.h b/firmware/export/uda1380.h
new file mode 100644
index 0000000..2d560e5
--- /dev/null
+++ b/firmware/export/uda1380.h
@@ -0,0 +1,161 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+/*
+ *  Driver for UDA1380 Audio-Codec
+ *  2005-02-17 hubble@mochine.com
+ *
+ */
+ 
+#ifndef _UDA1380_H
+#define _UDA1380_H
+
+extern int uda1380_init(void);
+extern int uda1380_setvol(int vol);
+extern int uda1380_mute(int mute);
+extern void uda1380_close(void);
+
+#define UDA1380_ADDR	0x30
+
+/* REG_0: Misc settings */
+#define REG_0    0x00
+
+#define EN_ADC	(1 << 11)       /* Enable ADC                       */
+#define EN_DEC  (1 << 10)       /* Enable Decimator                 */
+#define EN_DAC  (1 << 9)        /* Enable DAC                       */
+#define EN_INT  (1 << 8)        /* Enable Interpolator              */
+#define ADC_CLK (1 << 5)        /* ADC_CLK: WSPLL (1) SYSCLK (0)    */
+#define DAC_CLK (1 << 4)        /* DAC_CLK: WSPLL (1) SYSCLK (0)    */
+
+/* SYSCLK freqency select */
+#define SYSCLK_256FS        (0 << 2)
+#define SYSCLK_384FS        (1 << 2)
+#define SYSCLK_512FS        (2 << 2)
+#define SYSCLK_768FS        (3 << 2)
+
+/* WSPLL Input frequency range (kHz) */
+#define WSPLL_625_125       (0 << 0)    /* 6.25 - 12.5      */
+#define WSPLL_125_25        (1 << 0)    /* 12.5 - 25        */
+#define WSPLL_25_50         (2 << 0)    /* 25   - 50        */
+#define WSPLL_50_100        (3 << 0)    /* 50   - 100       */
+
+
+/* REG_I2S: I2S settings */
+#define REG_I2S     0x01
+#define I2S_IFMT_IIS        (0 << 8)
+#define I2S_IFMT_LSB16      (1 << 8)
+#define I2S_IFMT_LSB18      (2 << 8)
+#define I2S_IFMT_LSB20      (3 << 8)
+#define I2S_IFMT_MSB        (5 << 8)
+#define I2S_OFMT_IIS        (0 << 0)
+#define I2S_OFMT_LSB16      (1 << 0)
+#define I2S_OFMT_LSB18      (2 << 0)
+#define I2S_OFMT_LSB20      (3 << 0)
+#define I2S_OFMT_LSB24      (4 << 0)
+#define I2S_OFMT_MSB        (5 << 0)
+
+
+/* REG_PWR: Power control */
+#define REG_PWR     0x02
+#define PON_PLL     (1 << 15)   /* Power-on WSPLL                       */
+#define PON_HP      (1 << 13)   /* Power-on Headphone driver            */
+#define PON_DAC     (1 << 10)   /* Power-on DAC                         */
+#define PON_BIAS    (1 << 8)    /* Power-on BIAS for ADC, AVC, FSDAC    */ 
+#define EN_AVC      (1 << 7)    /* Enable analog mixer                  */
+#define PON_AVC     (1 << 6)    /* Power-on analog mixer                */
+#define PON_LNA     (1 << 4)    /* Power-on LNA & SDC                   */
+#define PON_PGAL    (1 << 3)    /* Power-on PGA left                    */
+#define PON_ADCL    (1 << 2)    /* Power-on ADC left                    */
+#define PON_PGAR    (1 << 1)    /* Power-on PGA right                   */
+#define PON_ADCR    (1 << 0)    /* Power-on ADC right                   */
+
+
+/* REG_AMIX: Analog mixer */
+#define REG_AMIX     0x03
+#define AMIX_LEFT(x)     (((x) & 0x3f) << 8)
+#define AMIX_RIGHT(x)    (((x) & 0x3f) << 0)
+
+/* REG_HP: Headphone amp */
+#define REG_HP      0x04
+
+/* REG_MV: Master Volume control */
+#define REG_MASTER_VOL      0x10
+
+#define MASTER_VOL_RIGHT(x)     (((x) & 0xff) << 8)
+#define MASTER_VOL_LEFT(x)      (((x) & 0xff) << 0)
+
+/* REG_MIX: Mixer volume control */
+/* Channel 1 is from digital data from I2S */
+/* Channel 2 is from decimation filter */
+
+#define REG_MIX_VOL     0x11
+#define MIX_VOL_CHANNEL_1(x)    (((x) & 0xff) << 0)
+#define MIX_VOL_CHANNEL_2(x)    (((x) & 0xff) << 8)
+
+/* REG_EQ: Bass boost and tremble */
+#define REG_EQ      0x12
+
+/* REG_MUTE: Master Mute */
+#define REG_MUTE    0x13
+#define MUTE_MASTER  (1 << 14)       /* Master Mute (soft)   */
+#define MUTE_CH2     (1 << 11)       /* Channel 2 mute       */
+#define MUTE_CH1     (1 << 3)        /* Channel 1 mute       */
+
+/* REG_MIX_CTL: Mixer, silence detector and oversampling settings */
+#define REG_MIX_CTL  0x14
+#define MIX_CTL_MIX_POS     (1 << 13)
+#define MIX_CTL_MIX         (1 << 12)
+
+/* REG_DEC_VOL: Decimator Volume control */
+#define REG_DEC_VOL 0x20
+
+/* REG_PGA: PGA settings and mute */
+#define REG_PGA     0x21
+#define MUTE_ADC    (1 << 15)       /* Mute ADC */
+
+/* REG_ADC: */
+#define REG_ADC     0x22
+
+/* REG_AGC: Attack / Gain */
+#define REG_AGC     0x23
+#define SKIP_DCFIL     ( 1 << 1)
+
+
+/* Audio tick interrupt */
+#define AUDIO_TICK_NUMBER       8
+#define AUDIO_TICK_BIT          (1 << 8)
+
+
+/* AUDIOGLOB bits */
+
+#define TICK_COUNT(x)           ((x) << 3)
+
+#define TICK_SOURCE_IIS1_TX     1
+#define TICK_SOURCE_IIS2_TX     2
+#define TICK_SOURCE_EBU_TX      3
+#define TICK_SOURCE_IIS1_RX     4
+#define TICK_SOURCE_IIS3_RX     5
+#define TICK_SOURCE_IIS4_RX     6
+#define TICK_SOURCE_EBU1_RX     7
+#define TICK_SOURCE_EBU2_RX     (1 << 11)
+
+
+
+
+#endif /* _UDA_1380_H */