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From: Warner Losh <imp@FreeBSD.org>
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Subject: PERFORCE change 107398 for review
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http://perforce.freebsd.org/chv.cgi?CH=107398

Change 107398 by imp@imp_lighthouse on 2006/10/07 06:59:29

	Get the MFG ID and print it.

Affected files ...

.. //depot/projects/arm/src/sys/dev/flash/at45d.c#4 edit

Differences ...

==== //depot/projects/arm/src/sys/dev/flash/at45d.c#4 (text+ko) ====

@@ -37,6 +37,9 @@
 #include <sys/module.h>
 #include <sys/mutex.h>
 
+#include <dev/spibus/spi.h>
+#include "spibus_if.h"
+
 struct at45d_softc 
 {
 	struct intr_config_hook config_intrhook;
@@ -247,6 +250,34 @@
 }
 #endif
 
+static int
+at45d_get_mfg_info(device_t dev, uint8_t *resp)
+{
+	uint8_t txCmdBuf[8], rxCmdBuf[8], txBuf[8], rxBuf[8];
+	struct spi_command cmd;
+	int err;
+
+	memset(txCmdBuf, 0, sizeof(txCmdBuf));
+	memset(txBuf, 0, sizeof(txBuf));
+	memset(rxCmdBuf, 0, sizeof(rxCmdBuf));
+	memset(rxBuf, 0, sizeof(rxBuf));
+
+	txCmdBuf[0] = MANUFACTURER_ID;
+
+	cmd.tx_cmd = &txCmdBuf;
+	cmd.rx_cmd = &rxCmdBuf;
+	cmd.tx_cmd_sz = 1;
+	cmd.rx_cmd_sz = 1;
+	cmd.tx_data = &txBuf;
+	cmd.rx_data = &rxBuf;
+	cmd.tx_data_sz = 4;
+	cmd.rx_data_sz = 4;
+	err = SPIBUS_TRANSFER(device_get_parent(dev), dev, &cmd);
+	if (err)
+		return (err);
+	memcpy(resp, rxBuf, 4);
+	return (0);
+}
 
 static int
 at45d_probe(device_t dev)
@@ -282,7 +313,10 @@
 at45d_delayed_attach(void *xsc)
 {
 	struct at45d_softc *sc = xsc;
+	uint8_t buf[4];
 	
+	at45d_get_mfg_info(sc->dev, buf);
+	printf("Reply is %#x %#x %#x %#x\n", buf[0], buf[1], buf[2], buf[3]);
 	config_intrhook_disestablish(&sc->config_intrhook);
 }