diff options
| author | Dave Chapman <dave@dchapman.com> | 2005-12-11 10:52:17 +0000 |
|---|---|---|
| committer | Dave Chapman <dave@dchapman.com> | 2005-12-11 10:52:17 +0000 |
| commit | e066a20b6722fc7a2948e92751a6709706f43525 (patch) | |
| tree | 036e35bb632ac5608be7791c6702d2fa1a07715a /firmware/export/i2c-pp5020.h | |
| parent | 060320b95c99d91fd2e72cc1c3aabbad8d99127d (diff) | |
iPod: Cleanup of i2c code and addition of RTC driver
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8219 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/export/i2c-pp5020.h')
| -rw-r--r-- | firmware/export/i2c-pp5020.h | 43 |
1 files changed, 6 insertions, 37 deletions
diff --git a/firmware/export/i2c-pp5020.h b/firmware/export/i2c-pp5020.h index 8487c678cf..c0dc969e8b 100644 --- a/firmware/export/i2c-pp5020.h +++ b/firmware/export/i2c-pp5020.h @@ -18,48 +18,17 @@ ****************************************************************************/ /* - * Driver for ARM i2c driver - * + * PP5020 i2c driver * */ -#ifndef _I2C_ARM_H -#define _I2C_ARM_H +#ifndef _I2C_PP5020_H +#define _I2C_PP5020_H -/* TODO: Implement: i2c-pp5020.h */ +/* TODO: Fully implement i2c driver */ void i2c_init(void); -int i2c_write(int device, unsigned char *buf, int count); -void i2c_close(void); - -#define MAX_LOOP 0x100 /* TODO: select a better value */ - -/* PLLCR control */ -#define QSPISEL (1 << 11) /* Selects QSPI or I2C interface */ - -/* Offsets to I2C registers from base address */ -#define O_MADR 0x00 /* Slave Address */ -#define O_MFDR 0x04 /* Frequency divider */ -#define O_MBCR 0x08 /* Control register */ -#define O_MBSR 0x0c /* Status register */ -#define O_MBDR 0x10 /* Data register */ - -/* MBSR - Status register */ -#define ICF (1 << 7) /* Transfer Complete */ -#define IAAS (1 << 6) /* Addressed As Alave */ -#define IBB (1 << 5) /* Bus Busy */ -#define IAL (1 << 4) /* Arbitration Lost */ -#define SRW (1 << 2) /* Slave R/W */ -#define IFF (1 << 1) /* I2C Interrupt */ -#define RXAK (1 << 0) /* No Ack bit */ - -/* MBCR - Control register */ -#define IEN (1 << 7) /* I2C Enable */ -#define IIEN (1 << 6) /* Interrupt Enable */ -#define MSTA (1 << 5) /* Master/Slave select */ -#define MTX (1 << 4) /* Transmit/Receive */ -#define TXAK (1 << 3) /* Transfer ACK */ -#define RSTA (1 << 2) /* Restart.. */ - +int i2c_readbyte(unsigned int dev_addr, int addr); +int ipod_i2c_send(unsigned int addr, int data0, int data1); #endif |