Clean up PP5020 I2C code (no functional changes):

Move into target tree.
Use #defines instead of inb/outb.
Whitespace cleanup.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12123 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 0 insertions, 216 deletions

diff --git a/firmware/drivers/i2c-pp5020.c b/firmware/drivers/i2c-pp5020.c
deleted file mode 100644
index 2aeb111..0000000
--- a/firmware/drivers/i2c-pp5020.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * PP5020 I2C driver
- *
- * Based on code from the ipodlinux project - http://ipodlinux.org/
- * Adapted for Rockbox in November 2005
- *
- * Original file: linux/arch/armnommu/mach-ipod/hardware.c
- *
- * Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
- *
- * 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 "cpu.h"
-#include "kernel.h"
-#include "logf.h"
-#include "system.h"
-#include "i2c-pp5020.h"
-
-/* Local functions definitions */
-
-#define IPOD_I2C_BASE   0x7000c000
-#define IPOD_I2C_CTRL   (IPOD_I2C_BASE+0x00)
-#define IPOD_I2C_ADDR   (IPOD_I2C_BASE+0x04)
-#define IPOD_I2C_DATA0  (IPOD_I2C_BASE+0x0c)
-#define IPOD_I2C_DATA1  (IPOD_I2C_BASE+0x10)
-#define IPOD_I2C_DATA2  (IPOD_I2C_BASE+0x14)
-#define IPOD_I2C_DATA3  (IPOD_I2C_BASE+0x18)
-#define IPOD_I2C_STATUS (IPOD_I2C_BASE+0x1c)
-
-/* IPOD_I2C_CTRL bit definitions */
-#define IPOD_I2C_SEND   0x80
-
-/* IPOD_I2C_STATUS bit definitions */
-#define IPOD_I2C_BUSY   (1<<6)
-
-#define POLL_TIMEOUT (HZ)
-
-static int pp_i2c_wait_not_busy(void)
-{
-    unsigned long timeout;
-    timeout = current_tick + POLL_TIMEOUT;
-    while (TIME_BEFORE(current_tick, timeout)) {
-         if (!(inb(IPOD_I2C_STATUS) & IPOD_I2C_BUSY)) {
-            return 0;
-         }
-         yield();
-    }
-
-    return -1;
-}
-
-static int pp_i2c_read_byte(unsigned int addr, unsigned int *data)
-{
-    if (pp_i2c_wait_not_busy() < 0)
-    {
-        return -1;
-    }
-
-    {
-        unsigned int byte;
-        int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
-
-        /* clear top 15 bits, left shift 1, or in 0x1 for a read */
-        outb(((addr << 17) >> 16) | 0x1, IPOD_I2C_ADDR);
-
-        outb(inb(IPOD_I2C_CTRL) | 0x20, IPOD_I2C_CTRL);
-
-        outb(inb(IPOD_I2C_CTRL) | IPOD_I2C_SEND, IPOD_I2C_CTRL);
-
-        set_irq_level(old_irq_level);
-        if (pp_i2c_wait_not_busy() < 0)
-        {
-            return -1;
-        }
-        old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
-
-        byte = inb(IPOD_I2C_DATA0);
-
-        if (data)
-            *data = byte;
-
-        set_irq_level(old_irq_level);
-    }
-
-    return 0;
-}
-
-static int pp_i2c_send_bytes(unsigned int addr, unsigned int len, unsigned char *data)
-{
-    int data_addr;
-    unsigned int i;
-
-    if (len < 1 || len > 4)
-    {
-        return -1;
-    }
-
-    if (pp_i2c_wait_not_busy() < 0)
-    {
-        return -2;
-    }
-
-    {
-        int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
-
-        /* clear top 15 bits, left shift 1 */
-        outb((addr << 17) >> 16, IPOD_I2C_ADDR);
-
-        outb(inb(IPOD_I2C_CTRL) & ~0x20, IPOD_I2C_CTRL);
-
-        data_addr = IPOD_I2C_DATA0;
-        for ( i = 0; i < len; i++ )
-        {
-            outb(*data++, data_addr);
-            data_addr += 4;
-        }
-
-        outb((inb(IPOD_I2C_CTRL) & ~0x26) | ((len-1) << 1), IPOD_I2C_CTRL);
-
-        outb(inb(IPOD_I2C_CTRL) | IPOD_I2C_SEND, IPOD_I2C_CTRL);
-
-        set_irq_level(old_irq_level);
-    }
-
-    return 0x0;
-}
-
-static int pp_i2c_send_byte(unsigned int addr, int data0)
-{
-    unsigned char data[1];
-
-    data[0] = data0;
-
-    return pp_i2c_send_bytes(addr, 1, data);
-}
-
-/* Public functions */
-static struct mutex i2c_mutex;
-
-int i2c_readbytes(unsigned int dev_addr, int addr, int len, unsigned char *data) {
-    unsigned int temp;
-    int i;
-    mutex_lock(&i2c_mutex);
-    pp_i2c_send_byte(dev_addr, addr);
-    for (i = 0; i < len; i++) {
-        pp_i2c_read_byte(dev_addr, &temp);
-        data[i] = temp;
-    }
-    mutex_unlock(&i2c_mutex);
-    return i;
-}
-
-int i2c_readbyte(unsigned int dev_addr, int addr)
-{
-    int data;
-
-    mutex_lock(&i2c_mutex);
-    pp_i2c_send_byte(dev_addr, addr);
-    pp_i2c_read_byte(dev_addr, &data);
-    mutex_unlock(&i2c_mutex);
-
-    return data;
-}
-
-int pp_i2c_send(unsigned int addr, int data0, int data1)
-{
-        int retval;
-        unsigned char data[2];
-
-        data[0] = data0;
-        data[1] = data1;
-
-        mutex_lock(&i2c_mutex);
-        retval = pp_i2c_send_bytes(addr, 2, data);
-        mutex_unlock(&i2c_mutex);
-
-        return retval;
-}
-
-void i2c_init(void)
-{
-   /* From ipodlinux */
-
-#ifdef IPOD_MINI
-   /* GPIO port C disable port 0x10 */
-   GPIOC_ENABLE &= ~0x10;
-
-   /* GPIO port C disable port 0x20 */
-   GPIOC_ENABLE &= ~0x20;
-#endif
-
-   outl(inl(0x6000600c) | 0x1000, 0x6000600c);     /* enable 12 */
-   outl(inl(0x60006004) | 0x1000, 0x60006004);     /* start reset 12 */
-   outl(inl(0x60006004) & ~0x1000, 0x60006004);    /* end reset 12 */
-
-   outl(0x0, 0x600060a4);
-   outl(0x80 | (0 << 8), 0x600060a4);
-
-   mutex_init(&i2c_mutex);
-   
-   i2c_readbyte(0x8, 0);
-}