From 7586fd6b3e2df042ce2b45cf4ab43a92af1a27ac Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 29 Apr 2014 12:59:39 -0700 Subject: [PATCH] staging: comedi: amplc_pci230: remove 'ao_continuous' from private data This member of the private data can be determined by checking the cmd->stop_src. Do that instead. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/amplc_pci230.c | 22 ++++++------------- 1 file changed, 7 insertions(+), 15 deletions(-) diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c index c00bd7c46366..ff927c641748 100644 --- a/drivers/staging/comedi/drivers/amplc_pci230.c +++ b/drivers/staging/comedi/drivers/amplc_pci230.c @@ -519,10 +519,6 @@ struct pci230_private { * level threshold (PCI230+/260+). */ unsigned short adcg; /* ADCG register value. */ unsigned char int_en; /* Interrupt enables bits. */ - unsigned char ao_continuous; /* Flag set when cmd->stop_src == - * TRIG_NONE - user chooses to stop - * continuous conversion by - * cancelation. */ unsigned char ai_bipolar; /* Set if bipolar input range so we * know to mangle it. */ unsigned char ao_bipolar; /* Set if bipolar output range so we @@ -1164,7 +1160,7 @@ static void pci230_handle_ao_nofifo(struct comedi_device *dev, struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; - if (!devpriv->ao_continuous && (devpriv->ao_scan_count == 0)) + if (cmd->stop_src == TRIG_COUNT && devpriv->ao_scan_count == 0) return; for (i = 0; i < cmd->chanlist_len; i++) { /* Read sample from Comedi's circular buffer. */ @@ -1179,7 +1175,7 @@ static void pci230_handle_ao_nofifo(struct comedi_device *dev, pci230_ao_write_nofifo(dev, data, CR_CHAN(cmd->chanlist[i])); } async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS; - if (!devpriv->ao_continuous) { + if (cmd->stop_src == TRIG_COUNT) { devpriv->ao_scan_count--; if (devpriv->ao_scan_count == 0) { /* End of acquisition. */ @@ -1210,7 +1206,7 @@ static int pci230_handle_ao_fifo(struct comedi_device *dev, /* Determine number of scans available in buffer. */ bytes_per_scan = cmd->chanlist_len * sizeof(short); num_scans = comedi_buf_read_n_available(async) / bytes_per_scan; - if (!devpriv->ao_continuous) { + if (cmd->stop_src == TRIG_COUNT) { /* Fixed number of scans. */ if (num_scans > devpriv->ao_scan_count) num_scans = devpriv->ao_scan_count; @@ -1260,7 +1256,7 @@ static int pci230_handle_ao_fifo(struct comedi_device *dev, } } events |= COMEDI_CB_EOS | COMEDI_CB_BLOCK; - if (!devpriv->ao_continuous) { + if (cmd->stop_src == TRIG_COUNT) { devpriv->ao_scan_count -= num_scans; if (devpriv->ao_scan_count == 0) { /* All data for the command has been written @@ -1338,7 +1334,7 @@ static void pci230_ao_start(struct comedi_device *dev, unsigned long irqflags; set_bit(AO_CMD_STARTED, &devpriv->state); - if (!devpriv->ao_continuous && (devpriv->ao_scan_count == 0)) { + if (cmd->stop_src == TRIG_COUNT && devpriv->ao_scan_count == 0) { /* An empty acquisition! */ async->events |= COMEDI_CB_EOA; pci230_ao_stop(dev, s); @@ -1451,14 +1447,10 @@ static int pci230_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) } /* Get number of scans required. */ - if (cmd->stop_src == TRIG_COUNT) { + if (cmd->stop_src == TRIG_COUNT) devpriv->ao_scan_count = cmd->stop_arg; - devpriv->ao_continuous = 0; - } else { - /* TRIG_NONE, user calls cancel. */ + else /* TRIG_NONE, user calls cancel */ devpriv->ao_scan_count = 0; - devpriv->ao_continuous = 1; - } /* Set range - see analogue output range table; 0 => unipolar 10V, * 1 => bipolar +/-10V range scale */ -- 2.20.1