diff options
Diffstat (limited to 'drivers/staging/meilhaus/me4600_ao.c')
| -rw-r--r-- | drivers/staging/meilhaus/me4600_ao.c | 191 |
1 files changed, 79 insertions, 112 deletions
diff --git a/drivers/staging/meilhaus/me4600_ao.c b/drivers/staging/meilhaus/me4600_ao.c index e2bec8229abd..eb472692a7c5 100644 --- a/drivers/staging/meilhaus/me4600_ao.c +++ b/drivers/staging/meilhaus/me4600_ao.c @@ -38,8 +38,8 @@ #include <linux/slab.h> #include <linux/spinlock.h> -#include <asm/io.h> -#include <asm/uaccess.h> +#include <linux/io.h> +#include <linux/uaccess.h> #include <linux/types.h> #include <linux/version.h> #include <linux/interrupt.h> @@ -58,31 +58,31 @@ /* Defines */ -static int me4600_ao_query_range_by_min_max(me_subdevice_t * subdevice, +static int me4600_ao_query_range_by_min_max(me_subdevice_t *subdevice, int unit, int *min, int *max, int *maxdata, int *range); -static int me4600_ao_query_number_ranges(me_subdevice_t * subdevice, +static int me4600_ao_query_number_ranges(me_subdevice_t *subdevice, int unit, int *count); -static int me4600_ao_query_range_info(me_subdevice_t * subdevice, +static int me4600_ao_query_range_info(me_subdevice_t *subdevice, int range, int *unit, int *min, int *max, int *maxdata); -static int me4600_ao_query_timer(me_subdevice_t * subdevice, +static int me4600_ao_query_timer(me_subdevice_t *subdevice, int timer, int *base_frequency, long long *min_ticks, long long *max_ticks); -static int me4600_ao_query_number_channels(me_subdevice_t * subdevice, +static int me4600_ao_query_number_channels(me_subdevice_t *subdevice, int *number); -static int me4600_ao_query_subdevice_type(me_subdevice_t * subdevice, +static int me4600_ao_query_subdevice_type(me_subdevice_t *subdevice, int *type, int *subtype); -static int me4600_ao_query_subdevice_caps(me_subdevice_t * subdevice, +static int me4600_ao_query_subdevice_caps(me_subdevice_t *subdevice, int *caps); static int me4600_ao_query_subdevice_caps_args(struct me_subdevice *subdevice, @@ -105,12 +105,12 @@ static void me4600_ao_destructor(struct me_subdevice *subdevice); /** Reset subdevice. Stop all actions. Reset registry. Disable FIFO. Set output to 0V and status to 'none'. */ -static int me4600_ao_io_reset_subdevice(me_subdevice_t * subdevice, +static int me4600_ao_io_reset_subdevice(me_subdevice_t *subdevice, struct file *filep, int flags); /** Set output as single */ -static int me4600_ao_io_single_config(me_subdevice_t * subdevice, +static int me4600_ao_io_single_config(me_subdevice_t *subdevice, struct file *filep, int channel, int single_config, @@ -120,103 +120,93 @@ static int me4600_ao_io_single_config(me_subdevice_t * subdevice, /** Pass to user actual value of output. */ -static int me4600_ao_io_single_read(me_subdevice_t * subdevice, +static int me4600_ao_io_single_read(me_subdevice_t *subdevice, struct file *filep, int channel, int *value, int time_out, int flags); /** Write to output requed value. */ -static int me4600_ao_io_single_write(me_subdevice_t * subdevice, +static int me4600_ao_io_single_write(me_subdevice_t *subdevice, struct file *filep, int channel, int value, int time_out, int flags); /** Set output as streamed device. */ -static int me4600_ao_io_stream_config(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_config(me_subdevice_t *subdevice, struct file *filep, - meIOStreamConfig_t * config_list, + meIOStreamConfig_t *config_list, int count, - meIOStreamTrigger_t * trigger, + meIOStreamTrigger_t *trigger, int fifo_irq_threshold, int flags); /** Wait for / Check empty space in buffer. */ -static int me4600_ao_io_stream_new_values(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_new_values(me_subdevice_t *subdevice, struct file *filep, int time_out, int *count, int flags); /** Start streaming. */ -static int me4600_ao_io_stream_start(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_start(me_subdevice_t *subdevice, struct file *filep, int start_mode, int time_out, int flags); /** Check actual state. / Wait for end. */ -static int me4600_ao_io_stream_status(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_status(me_subdevice_t *subdevice, struct file *filep, int wait, int *status, int *values, int flags); /** Stop streaming. */ -static int me4600_ao_io_stream_stop(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_stop(me_subdevice_t *subdevice, struct file *filep, int stop_mode, int flags); /** Write datas to buffor. */ -static int me4600_ao_io_stream_write(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_write(me_subdevice_t *subdevice, struct file *filep, int write_mode, int *values, int *count, int flags); /** Interrupt handler. Copy from buffer to FIFO. */ -static irqreturn_t me4600_ao_isr(int irq, void *dev_id -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19) - , struct pt_regs *regs -#endif - ); +static irqreturn_t me4600_ao_isr(int irq, void *dev_id); /** Copy data from circular buffer to fifo (fast) in wraparound mode. */ -int inline ao_write_data_wraparound(me4600_ao_subdevice_t * instance, int count, +inline int ao_write_data_wraparound(me4600_ao_subdevice_t *instance, int count, int start_pos); /** Copy data from circular buffer to fifo (fast). */ -int inline ao_write_data(me4600_ao_subdevice_t * instance, int count, +inline int ao_write_data(me4600_ao_subdevice_t *instance, int count, int start_pos); /** Copy data from circular buffer to fifo (slow). */ -int inline ao_write_data_pooling(me4600_ao_subdevice_t * instance, int count, +inline int ao_write_data_pooling(me4600_ao_subdevice_t *instance, int count, int start_pos); /** Copy data from user space to circular buffer. */ -int inline ao_get_data_from_user(me4600_ao_subdevice_t * instance, int count, +inline int ao_get_data_from_user(me4600_ao_subdevice_t *instance, int count, int *user_values); /** Stop presentation. Preserve FIFOs. */ -int inline ao_stop_immediately(me4600_ao_subdevice_t * instance); +inline int ao_stop_immediately(me4600_ao_subdevice_t *instance); /** Task for asynchronical state verifying. */ -static void me4600_ao_work_control_task( -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) - void *subdevice -#else - struct work_struct *work -#endif - ); +static void me4600_ao_work_control_task(struct work_struct *work); /* Functions */ -static int me4600_ao_io_reset_subdevice(me_subdevice_t * subdevice, +static int me4600_ao_io_reset_subdevice(me_subdevice_t *subdevice, struct file *filep, int flags) { me4600_ao_subdevice_t *instance; @@ -290,7 +280,7 @@ static int me4600_ao_io_reset_subdevice(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_single_config(me_subdevice_t * subdevice, +static int me4600_ao_io_single_config(me_subdevice_t *subdevice, struct file *filep, int channel, int single_config, @@ -463,7 +453,7 @@ static int me4600_ao_io_single_config(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_single_read(me_subdevice_t * subdevice, +static int me4600_ao_io_single_read(me_subdevice_t *subdevice, struct file *filep, int channel, int *value, int time_out, int flags) @@ -547,7 +537,7 @@ static int me4600_ao_io_single_read(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_single_write(me_subdevice_t * subdevice, +static int me4600_ao_io_single_write(me_subdevice_t *subdevice, struct file *filep, int channel, int value, int time_out, int flags) @@ -989,11 +979,11 @@ static int me4600_ao_io_single_write(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_stream_config(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_config(me_subdevice_t *subdevice, struct file *filep, - meIOStreamConfig_t * config_list, + meIOStreamConfig_t *config_list, int count, - meIOStreamTrigger_t * trigger, + meIOStreamTrigger_t *trigger, int fifo_irq_threshold, int flags) { me4600_ao_subdevice_t *instance; @@ -1025,7 +1015,7 @@ static int me4600_ao_io_stream_config(me_subdevice_t * subdevice, } if (flags & ME_IO_STREAM_CONFIG_HARDWARE_ONLY) { - if (!flags & ME_IO_STREAM_CONFIG_WRAPAROUND) { + if (!(flags & ME_IO_STREAM_CONFIG_WRAPAROUND)) { PERROR ("Hardware ME_IO_STREAM_CONFIG_HARDWARE_ONLY has to be with ME_IO_STREAM_CONFIG_WRAPAROUND.\n"); return ME_ERRNO_INVALID_FLAGS; @@ -1327,7 +1317,7 @@ static int me4600_ao_io_stream_config(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_stream_new_values(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_new_values(me_subdevice_t *subdevice, struct file *filep, int time_out, int *count, int flags) { @@ -1408,7 +1398,7 @@ static int me4600_ao_io_stream_new_values(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_stream_start(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_start(me_subdevice_t *subdevice, struct file *filep, int start_mode, int time_out, int flags) { @@ -1845,7 +1835,7 @@ static int me4600_ao_io_stream_start(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_stream_status(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_status(me_subdevice_t *subdevice, struct file *filep, int wait, int *status, int *values, int flags) @@ -1943,7 +1933,7 @@ static int me4600_ao_io_stream_status(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_stream_stop(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_stop(me_subdevice_t *subdevice, struct file *filep, int stop_mode, int flags) { // Stop work and empty buffer and FIFO @@ -2048,7 +2038,7 @@ static int me4600_ao_io_stream_stop(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_stream_write(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_write(me_subdevice_t *subdevice, struct file *filep, int write_mode, int *values, int *count, int flags) @@ -2272,11 +2262,7 @@ static int me4600_ao_io_stream_write(me_subdevice_t * subdevice, return err; } -static irqreturn_t me4600_ao_isr(int irq, void *dev_id -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19) - , struct pt_regs *regs -#endif - ) +static irqreturn_t me4600_ao_isr(int irq, void *dev_id) { me4600_ao_subdevice_t *instance = dev_id; uint32_t irq_status; @@ -2498,8 +2484,8 @@ static void me4600_ao_destructor(struct me_subdevice *subdevice) } me4600_ao_subdevice_t *me4600_ao_constructor(uint32_t reg_base, - spinlock_t * preload_reg_lock, - uint32_t * preload_flags, + spinlock_t *preload_reg_lock, + uint32_t *preload_flags, int ao_idx, int fifo, int irq, @@ -2689,13 +2675,8 @@ me4600_ao_subdevice_t *me4600_ao_constructor(uint32_t reg_base, subdevice->me4600_workqueue = me4600_wq; /* workqueue API changed in kernel 2.6.20 */ -#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) ) - INIT_WORK(&subdevice->ao_control_task, me4600_ao_work_control_task, - (void *)subdevice); -#else INIT_DELAYED_WORK(&subdevice->ao_control_task, me4600_ao_work_control_task); -#endif if (subdevice->fifo) { // Set speed for single operations. outl(ME4600_AO_MIN_CHAN_TICKS - 1, subdevice->timer_reg); @@ -2709,7 +2690,7 @@ me4600_ao_subdevice_t *me4600_ao_constructor(uint32_t reg_base, * * @param instance The subdevice instance (pointer). */ -int inline ao_stop_immediately(me4600_ao_subdevice_t * instance) +inline int ao_stop_immediately(me4600_ao_subdevice_t *instance) { unsigned long cpu_flags; uint32_t ctrl; @@ -2762,7 +2743,7 @@ int inline ao_stop_immediately(me4600_ao_subdevice_t * instance) * @return On error/success: 0. No datas were copied => no data in buffer. * @return On error: -ME_ERRNO_FIFO_BUFFER_OVERFLOW. */ -int inline ao_write_data_wraparound(me4600_ao_subdevice_t * instance, int count, +inline int ao_write_data_wraparound(me4600_ao_subdevice_t *instance, int count, int start_pos) { /// @note This is time critical function! uint32_t status; @@ -2827,7 +2808,7 @@ int inline ao_write_data_wraparound(me4600_ao_subdevice_t * instance, int count, * @return On error/success: 0. No datas were copied => no data in buffer. * @return On error: -ME_ERRNO_FIFO_BUFFER_OVERFLOW. */ -int inline ao_write_data(me4600_ao_subdevice_t * instance, int count, +inline int ao_write_data(me4600_ao_subdevice_t *instance, int count, int start_pos) { /// @note This is time critical function! uint32_t status; @@ -2897,7 +2878,7 @@ int inline ao_write_data(me4600_ao_subdevice_t * instance, int count, * @return On error/success: 0. FIFO was full at begining. * @return On error: -ME_ERRNO_RING_BUFFER_UNDEFFLOW. */ -int inline ao_write_data_pooling(me4600_ao_subdevice_t * instance, int count, +inline int ao_write_data_pooling(me4600_ao_subdevice_t *instance, int count, int start_pos) { /// @note This is slow function! uint32_t status; @@ -2955,7 +2936,7 @@ int inline ao_write_data_pooling(me4600_ao_subdevice_t * instance, int count, * @return On success: Number of copied values. * @return On error: -ME_ERRNO_INTERNAL. */ -int inline ao_get_data_from_user(me4600_ao_subdevice_t * instance, int count, +inline int ao_get_data_from_user(me4600_ao_subdevice_t *instance, int count, int *user_values) { int i, err; @@ -2987,13 +2968,7 @@ int inline ao_get_data_from_user(me4600_ao_subdevice_t * instance, int count, /** @brief Checking actual hardware and logical state. * @param instance The subdevice instance (pointer). */ -static void me4600_ao_work_control_task( -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) - void *subdevice -#else - struct work_struct *work -#endif - ) +static void me4600_ao_work_control_task(struct work_struct *work) { me4600_ao_subdevice_t *instance; unsigned long cpu_flags = 0; @@ -3003,12 +2978,8 @@ static void me4600_ao_work_control_task( int reschedule = 0; int signaling = 0; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) - instance = (me4600_ao_subdevice_t *) subdevice; -#else instance = container_of((void *)work, me4600_ao_subdevice_t, ao_control_task); -#endif PINFO("<%s: %ld> executed. idx=%d\n", __func__, jiffies, instance->ao_idx); @@ -3323,7 +3294,7 @@ static void me4600_ao_work_control_task( #else /// @note SPECIAL BUILD FOR BOSCH /// @author Guenter Gebhardt -static int me4600_ao_io_reset_subdevice(me_subdevice_t * subdevice, +static int me4600_ao_io_reset_subdevice(me_subdevice_t *subdevice, struct file *filep, int flags) { me4600_ao_subdevice_t *instance; @@ -3365,7 +3336,7 @@ static int me4600_ao_io_reset_subdevice(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_single_config(me_subdevice_t * subdevice, +static int me4600_ao_io_single_config(me_subdevice_t *subdevice, struct file *filep, int channel, int single_config, @@ -3636,7 +3607,7 @@ static int me4600_ao_io_single_config(me_subdevice_t * subdevice, goto ERROR; } - ERROR: +ERROR: spin_unlock_irqrestore(&instance->subdevice_lock, cpu_flags); @@ -3645,7 +3616,7 @@ static int me4600_ao_io_single_config(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_single_read(me_subdevice_t * subdevice, +static int me4600_ao_io_single_read(me_subdevice_t *subdevice, struct file *filep, int channel, int *value, int time_out, int flags) @@ -3682,7 +3653,7 @@ static int me4600_ao_io_single_read(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_single_write(me_subdevice_t * subdevice, +static int me4600_ao_io_single_write(me_subdevice_t *subdevice, struct file *filep, int channel, int value, int time_out, int flags) @@ -3830,18 +3801,18 @@ static int me4600_ao_io_single_write(me_subdevice_t * subdevice, spin_unlock_irqrestore(&instance->subdevice_lock, cpu_flags); } - ERROR: +ERROR: ME_SUBDEVICE_EXIT; return err; } -static int me4600_ao_io_stream_config(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_config(me_subdevice_t *subdevice, struct file *filep, - meIOStreamConfig_t * config_list, + meIOStreamConfig_t *config_list, int count, - meIOStreamTrigger_t * trigger, + meIOStreamTrigger_t *trigger, int fifo_irq_threshold, int flags) { me4600_ao_subdevice_t *instance; @@ -4150,7 +4121,7 @@ static int me4600_ao_io_stream_config(me_subdevice_t * subdevice, PDEBUG("Ctrl word = 0x%lX.\n", ctrl); outl(ctrl, instance->ctrl_reg); // Write the control word - ERROR: +ERROR: spin_unlock_irqrestore(&instance->subdevice_lock, cpu_flags); @@ -4159,7 +4130,7 @@ static int me4600_ao_io_stream_config(me_subdevice_t * subdevice, return err; } -static int me4600_ao_io_stream_new_values(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_new_values(me_subdevice_t *subdevice, struct file *filep, int time_out, int *count, int flags) { @@ -4238,7 +4209,7 @@ static int me4600_ao_io_stream_new_values(me_subdevice_t * subdevice, return err; } -static void stop_immediately(me4600_ao_subdevice_t * instance) +static void stop_immediately(me4600_ao_subdevice_t *instance) { unsigned long cpu_flags; uint32_t tmp; @@ -4253,7 +4224,7 @@ static void stop_immediately(me4600_ao_subdevice_t * instance) spin_unlock_irqrestore(&instance->subdevice_lock, cpu_flags); } -static int me4600_ao_io_stream_start(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_start(me_subdevice_t *subdevice, struct file *filep, int start_mode, int time_out, int flags) { @@ -4778,14 +4749,14 @@ static int me4600_ao_io_stream_start(me_subdevice_t * subdevice, goto ERROR; } - ERROR: +ERROR: ME_SUBDEVICE_EXIT; return err; } -static int me4600_ao_io_stream_status(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_status(me_subdevice_t *subdevice, struct file *filep, int wait, int *status, int *values, int flags) @@ -4842,14 +4813,14 @@ static int me4600_ao_io_stream_status(me_subdevice_t * subdevice, goto ERROR; } - ERROR: +ERROR: ME_SUBDEVICE_EXIT; return err; } -static int me4600_ao_io_stream_stop(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_stop(me_subdevice_t *subdevice, struct file *filep, int stop_mode, int flags) { @@ -4891,14 +4862,14 @@ static int me4600_ao_io_stream_stop(me_subdevice_t * subdevice, goto ERROR; } - ERROR: +ERROR: ME_SUBDEVICE_EXIT; return err; } -static int me4600_ao_io_stream_write(me_subdevice_t * subdevice, +static int me4600_ao_io_stream_write(me_subdevice_t *subdevice, struct file *filep, int write_mode, int *values, int *count, int flags) @@ -5432,18 +5403,14 @@ static int me4600_ao_io_stream_write(me_subdevice_t * subdevice, goto ERROR; } - ERROR: +ERROR: ME_SUBDEVICE_EXIT; return err; } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) static irqreturn_t me4600_ao_isr(int irq, void *dev_id) -#else -static irqreturn_t me4600_ao_isr(int irq, void *dev_id, struct pt_regs *regs) -#endif { unsigned long tmp; int value; @@ -5660,8 +5627,8 @@ static void me4600_ao_destructor(struct me_subdevice *subdevice) } me4600_ao_subdevice_t *me4600_ao_constructor(uint32_t reg_base, - spinlock_t * preload_reg_lock, - uint32_t * preload_flags, + spinlock_t *preload_reg_lock, + uint32_t *preload_flags, int ao_idx, int fifo, int irq) { me4600_ao_subdevice_t *subdevice; @@ -5823,7 +5790,7 @@ me4600_ao_subdevice_t *me4600_ao_constructor(uint32_t reg_base, /* Common functions */ -static int me4600_ao_query_range_by_min_max(me_subdevice_t * subdevice, +static int me4600_ao_query_range_by_min_max(me_subdevice_t *subdevice, int unit, int *min, int *max, int *maxdata, int *range) @@ -5858,7 +5825,7 @@ static int me4600_ao_query_range_by_min_max(me_subdevice_t * subdevice, return ME_ERRNO_SUCCESS; } -static int me4600_ao_query_number_ranges(me_subdevice_t * subdevice, +static int me4600_ao_query_number_ranges(me_subdevice_t *subdevice, int unit, int *count) { me4600_ao_subdevice_t *instance; @@ -5876,7 +5843,7 @@ static int me4600_ao_query_number_ranges(me_subdevice_t * subdevice, return ME_ERRNO_SUCCESS; } -static int me4600_ao_query_range_info(me_subdevice_t * subdevice, +static int me4600_ao_query_range_info(me_subdevice_t *subdevice, int range, int *unit, int *min, int *max, int *maxdata) @@ -5900,7 +5867,7 @@ static int me4600_ao_query_range_info(me_subdevice_t * subdevice, return ME_ERRNO_SUCCESS; } -static int me4600_ao_query_timer(me_subdevice_t * subdevice, +static int me4600_ao_query_timer(me_subdevice_t *subdevice, int timer, int *base_frequency, long long *min_ticks, long long *max_ticks) @@ -5934,7 +5901,7 @@ static int me4600_ao_query_timer(me_subdevice_t * subdevice, return ME_ERRNO_SUCCESS; } -static int me4600_ao_query_number_channels(me_subdevice_t * subdevice, +static int me4600_ao_query_number_channels(me_subdevice_t *subdevice, int *number) { me4600_ao_subdevice_t *instance; @@ -5947,7 +5914,7 @@ static int me4600_ao_query_number_channels(me_subdevice_t * subdevice, return ME_ERRNO_SUCCESS; } -static int me4600_ao_query_subdevice_type(me_subdevice_t * subdevice, +static int me4600_ao_query_subdevice_type(me_subdevice_t *subdevice, int *type, int *subtype) { me4600_ao_subdevice_t *instance; @@ -5962,7 +5929,7 @@ static int me4600_ao_query_subdevice_type(me_subdevice_t * subdevice, return ME_ERRNO_SUCCESS; } -static int me4600_ao_query_subdevice_caps(me_subdevice_t * subdevice, int *caps) +static int me4600_ao_query_subdevice_caps(me_subdevice_t *subdevice, int *caps) { me4600_ao_subdevice_t *instance; instance = (me4600_ao_subdevice_t *) subdevice; |