From 2e11b4f1f9ec631c819d2a04c82d4aa710a27553 Mon Sep 17 00:00:00 2001 From: Jonas Bonn Date: Wed, 19 Nov 2008 17:11:03 +0000 Subject: Move asm/arch/fiq_ipc_gta02.h to mach/fiq_ipc_gta02.h Signed-off-by: Jonas Bonn --- arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h | 60 ++++++++++++++++++++++ arch/arm/mach-s3c2440/mach-gta02.c | 4 +- 2 files changed, 62 insertions(+), 2 deletions(-) create mode 100644 arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h (limited to 'arch') diff --git a/arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h b/arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h new file mode 100644 index 00000000000..8f7744eab63 --- /dev/null +++ b/arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h @@ -0,0 +1,60 @@ +#ifndef _LINUX_FIQ_IPC_H +#define _LINUX_FIQ_IPC_H + +/* + * this defines the struct which is used to communicate between the FIQ + * world and the normal linux kernel world. One of these structs is + * statically defined for you in the monolithic kernel so the FIQ ISR code + * can safely touch it any any time. + * + * You also want to include this file in your kernel module that wants to + * communicate with your FIQ code. Add any kinds of vars that are used by + * the FIQ ISR and the module in here. + * + * To get you started there is just an int that is incremented every FIQ + * you can remove this when you are ready to customize, but it is useful + * for testing + */ + +#include +#include + +extern u8 fiq_ready; + +enum hdq_bitbang_states { + HDQB_IDLE = 0, + HDQB_TX_BREAK, + HDQB_TX_BREAK_RECOVERY, + HDQB_ADS_CALC, + HDQB_ADS_LOW, + HDQB_ADS_HIGH, + HDQB_WAIT_RX, + HDQB_DATA_RX_LOW, + HDQB_DATA_RX_HIGH, + HDQB_WAIT_TX, +}; + +struct fiq_ipc { + /* vibrator */ + unsigned long vib_gpio_pin; /* which pin to meddle with */ + u8 vib_pwm; /* 0 = OFF -- will ensure GPIO deasserted and stop FIQ */ + u8 vib_pwm_latched; + + /* hdq */ + u8 hdq_probed; /* nonzero after HDQ driver probed */ + struct mutex hdq_lock; /* if you want to use hdq, you have to take lock */ + unsigned long hdq_gpio_pin; /* GTA02 = GPD14 which pin to meddle with */ + u8 hdq_ads; /* b7..b6 = register address, b0 = r/w */ + u8 hdq_tx_data; /* data to tx for write action */ + u8 hdq_rx_data; /* data received in read action */ + u8 hdq_request_ctr; /* incremented by "user" to request a transfer */ + u8 hdq_transaction_ctr; /* incremented after each transfer */ + u8 hdq_error; /* 0 = no error */ +}; + +/* actual definition lives in arch/arm/mach-s3c2440/fiq_c_isr.c */ +extern struct fiq_ipc fiq_ipc; +extern unsigned long _fiq_count_fiqs; +extern void fiq_kick(void); /* provoke a FIQ "immediately" */ + +#endif /* _LINUX_FIQ_IPC_H */ diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c index 3c1cb831ff6..a5d3389eca4 100644 --- a/arch/arm/mach-s3c2440/mach-gta02.c +++ b/arch/arm/mach-s3c2440/mach-gta02.c @@ -83,7 +83,7 @@ #include -#include +#include #include "fiq_c_isr.h" #include #include @@ -109,7 +109,7 @@ static int gta02_charger_active_status; /* define FIQ IPC struct */ /* * contains stuff FIQ ISR modifies and normal kernel code can see and use - * this is defined in , you should customize + * this is defined in , you should customize * the definition in there and include the same definition in your kernel * module that wants to interoperate with your FIQ code. */ -- cgit v1.2.3