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Date: Mon, 11 Jan 2010 17:08:51 +0100
From: "Alessio Margan @ IIT" <alessio.margan@domain.hid>
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Subject: [Xenomai-core] [PATCH] Sensoray 526 analogy driver
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To: Xenomai-core@domain.hid

Hi,

I try to configure sensoray counters to generate PWM signal

#define SUBD_CNT 0
#define SUBD_AI 1
#define SUBD_AO 2
#define SUBD_DIO 3

insn.type =3D A4L_INSN_CONFIG;
insn.idx_subd =3D SUBD_COUNTER;
insn.chan_desc =3D CHAN(channel);
insn.data_size =3D sizeof(dataC) / sizeof(dataC[0]);
insn.data =3D data;
data[0] =3D A4L_INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR;
data[1] =3D cmReg.value;
data[2] =3D down_ticks;
data[3] =3D up_ticks;

ret =3D a4l_snd_insn(&dsc, &insn);

in a4l_do_insn the subdevice is check in this way but the test for=20
counter, and I think also for dio, fails due
to A4L_SUBD_MASK_SPECIAL bit

#define A4L_SUBD_UNUSED (A4L_SUBD_MASK_SPECIAL|0x1)
#define A4L_SUBD_COUNTER (A4L_SUBD_MASK_SPECIAL|0x40)
#define A4L_SUBD_DIO (A4L_SUBD_MASK_SPECIAL|0x20)

/* Checks the subdevice's characteristics */
if ((subd->flags & A4L_SUBD_UNUSED) !=3D 0) {
__a4l_err("a4l_do_insn: wrong subdevice selected 0x%X\n",subd->flags);
return -EINVAL;
}

there is something wrong or I miss something ?

TIA

Alessio


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