* (C) Copyright 2002
* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <common.h>
#include <command.h>
+#include <dm.h>
+#include <errno.h>
#include <spi.h>
/*-----------------------------------------------------------------------
static uchar dout[MAX_SPI_BYTES];
static uchar din[MAX_SPI_BYTES];
+static int do_spi_xfer(int bus, int cs)
+{
+ struct spi_slave *slave;
+ int ret = 0;
+
+#ifdef CONFIG_DM_SPI
+ char name[30], *str;
+ struct udevice *dev;
+
+ snprintf(name, sizeof(name), "generic_%d:%d", bus, cs);
+ str = strdup(name);
+ ret = spi_get_bus_and_cs(bus, cs, 1000000, mode, "spi_generic_drv",
+ str, &dev, &slave);
+ if (ret)
+ return ret;
+#else
+ slave = spi_setup_slave(bus, cs, 1000000, mode);
+ if (!slave) {
+ printf("Invalid device %d:%d\n", bus, cs);
+ return -EINVAL;
+ }
+#endif
+
+ ret = spi_claim_bus(slave);
+ if (ret)
+ goto done;
+ ret = spi_xfer(slave, bitlen, dout, din,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+#ifndef CONFIG_DM_SPI
+ /* We don't get an error code in this case */
+ if (ret)
+ ret = -EIO;
+#endif
+ if (ret) {
+ printf("Error %d during SPI transaction\n", ret);
+ } else {
+ int j;
+
+ for (j = 0; j < ((bitlen + 7) / 8); j++)
+ printf("%02X", din[j]);
+ printf("\n");
+ }
+done:
+ spi_release_bus(slave);
+#ifndef CONFIG_DM_SPI
+ spi_free_slave(slave);
+#endif
+
+ return ret;
+}
+
/*
* SPI read/write
*
int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- struct spi_slave *slave;
char *cp = 0;
uchar tmp;
int j;
- int rcode = 0;
/*
* We use the last specified parameters, unless new ones are
cs = bus;
bus = CONFIG_DEFAULT_SPI_BUS;
}
- if (*cp == '.');
+ if (*cp == '.')
mode = simple_strtoul(cp+1, NULL, 10);
}
if (argc >= 3)
return 1;
}
- slave = spi_setup_slave(bus, cs, 1000000, mode);
- if (!slave) {
- printf("Invalid device %d:%d\n", bus, cs);
+ if (do_spi_xfer(bus, cs))
return 1;
- }
-
- spi_claim_bus(slave);
- if(spi_xfer(slave, bitlen, dout, din,
- SPI_XFER_BEGIN | SPI_XFER_END) != 0) {
- printf("Error during SPI transaction\n");
- rcode = 1;
- } else {
- for(j = 0; j < ((bitlen + 7) / 8); j++) {
- printf("%02X", din[j]);
- }
- printf("\n");
- }
- spi_release_bus(slave);
- spi_free_slave(slave);
- return rcode;
+ return 0;
}
/***************************************************/