ssdfb_spi.c (93f31c05) ssdfb_spi.c (da38dc41)
1/* $NetBSD: ssdfb_spi.c,v 1.12 2022/01/19 05:05:45 thorpej Exp $ */
1/* $NetBSD: ssdfb_spi.c,v 1.13 2022/01/19 05:21:44 thorpej Exp $ */
2
3/*
4 * Copyright (c) 2019 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tobias Nygren.
9 *

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25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
2
3/*
4 * Copyright (c) 2019 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tobias Nygren.
9 *

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25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: ssdfb_spi.c,v 1.12 2022/01/19 05:05:45 thorpej Exp $");
33__KERNEL_RCSID(0, "$NetBSD: ssdfb_spi.c,v 1.13 2022/01/19 05:21:44 thorpej Exp $");
34
35#include <sys/param.h>
36#include <sys/device.h>
37#include <sys/kernel.h>
38#include <dev/wscons/wsdisplayvar.h>
39#include <dev/rasops/rasops.h>
40#include <dev/spi/spivar.h>
41#include <dev/ic/ssdfbvar.h>

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125 flags |= (int)dce->value;
126 else
127 flags |= SSDFB_PRODUCT_SSD1322_GENERIC;
128 }
129
130 /*
131 * SSD1306 and SSD1322 data sheets specify 100ns cycle time.
132 */
34
35#include <sys/param.h>
36#include <sys/device.h>
37#include <sys/kernel.h>
38#include <dev/wscons/wsdisplayvar.h>
39#include <dev/rasops/rasops.h>
40#include <dev/spi/spivar.h>
41#include <dev/ic/ssdfbvar.h>

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125 flags |= (int)dce->value;
126 else
127 flags |= SSDFB_PRODUCT_SSD1322_GENERIC;
128 }
129
130 /*
131 * SSD1306 and SSD1322 data sheets specify 100ns cycle time.
132 */
133 error = spi_configure(sa->sa_handle, SPI_MODE_0, 10000000);
133 error = spi_configure(self, sa->sa_handle, SPI_MODE_0, 10000000);
134 if (error) {
134 if (error) {
135 aprint_error(": failed to set Mode 0 @ 10MHz, error=%d\n",
136 error);
137 return;
138 }
139
140 /*
141 * Note on interface modes.
142 *
143 * 3 wire mode sends 9 bit sequences over the MOSI, MSB contains
144 * the bit that determines if the lower 8 bits are command or data.

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136 }
137
138 /*
139 * Note on interface modes.
140 *
141 * 3 wire mode sends 9 bit sequences over the MOSI, MSB contains
142 * the bit that determines if the lower 8 bits are command or data.

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