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| author | imp <imp@FreeBSD.org> | 2006-10-20 07:08:59 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2006-10-20 07:08:59 +0000 |
| commit | 105dd71b1627fd12ce54b2d2f115760031c70407 (patch) | |
| tree | e20079c919ff2a9c22f341f60f01a8110f300bc6 /sys/arm/at91/at91_ssc.c | |
| parent | dbcd7809d115d0bcf3c7338c8d6f9c25e7df7758 (diff) | |
| download | FreeBSD-src-105dd71b1627fd12ce54b2d2f115760031c70407.zip FreeBSD-src-105dd71b1627fd12ce54b2d2f115760031c70407.tar.gz | |
Commit WIP SSC driver, more work is needed here, but it configures
things OK.
Diffstat (limited to 'sys/arm/at91/at91_ssc.c')
| -rw-r--r-- | sys/arm/at91/at91_ssc.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/sys/arm/at91/at91_ssc.c b/sys/arm/at91/at91_ssc.c index 517d837..f4db0d1 100644 --- a/sys/arm/at91/at91_ssc.c +++ b/sys/arm/at91/at91_ssc.c @@ -88,14 +88,16 @@ static void at91_ssc_deactivate(device_t dev); /* cdev routines */ static d_open_t at91_ssc_open; static d_close_t at91_ssc_close; -static d_ioctl_t at91_ssc_ioctl; +static d_read_t at91_ssc_read; +static d_write_t at91_ssc_write; static struct cdevsw at91_ssc_cdevsw = { .d_version = D_VERSION, .d_open = at91_ssc_open, .d_close = at91_ssc_close, - .d_ioctl = at91_ssc_ioctl + .d_read = at91_ssc_read, + .d_write = at91_ssc_write, }; static int @@ -134,6 +136,19 @@ at91_ssc_attach(device_t dev) goto out; } sc->cdev->si_drv1 = sc; + + // Init for TSC needs + WR4(sc, SSC_CR, SSC_CR_SWRST); + WR4(sc, SSC_CMR, 0); // clock divider unused + WR4(sc, SSC_RCMR, + SSC_RCMR_CKS_RK | SSC_RCMR_CKO_NONE | SSC_RCMR_START_FALL_EDGE_RF); + WR4(sc, SSC_RFMR, + 0x1f | SSC_RFMR_MSFBF | SSC_RFMR_FSOS_NONE); + WR4(sc, SSC_TCMR, + SSC_TCMR_CKS_TK | SSC_TCMR_CKO_NONE | SSC_RCMR_START_CONT); + WR4(sc, SSC_TFMR, + 0x1f | SSC_TFMR_DATDEF | SSC_TFMR_MSFBF | SSC_TFMR_FSOS_NEG_PULSE); + out:; if (err) at91_ssc_deactivate(dev); @@ -161,7 +176,7 @@ at91_ssc_activate(device_t dev) rid = 0; sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); - if (sc->mem_res == NULL) + if (sc->irq_res == NULL) goto errout; return (0); errout: @@ -241,10 +256,15 @@ at91_ssc_close(struct cdev *dev, int fflag, int devtype, struct thread *td) } static int -at91_ssc_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, - struct thread *td) +at91_ssc_read(struct cdev *dev, struct uio *uio, int flag) +{ + return EIO; +} + +static int +at91_ssc_write(struct cdev *dev, struct uio *uio, int flag) { - return (ENXIO); + return EIO; } static device_method_t at91_ssc_methods[] = { |
