If you choose to build module, its name will be phantom. If unsure,
say N here.
-config EEPROM_93CX6
- tristate "EEPROM 93CX6 support"
- ---help---
- This is a driver for the EEPROM chipsets 93c46 and 93c66.
- The driver supports both read as well as write commands.
-
- If unsure, say N.
-
config SGI_IOC4
tristate "SGI IOC4 Base IO support"
depends on PCI
obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
obj-$(CONFIG_PHANTOM) += phantom.o
obj-$(CONFIG_SGI_IOC4) += ioc4.o
-obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o
obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
obj-$(CONFIG_KGDB_TESTS) += kgdbts.o
obj-$(CONFIG_SGI_XP) += sgi-xp/
This driver can also be built as a module. If so, the module
will be called eeprom.
+config EEPROM_93CX6
+ tristate "EEPROM 93CX6 support"
+ help
+ This is a driver for the EEPROM chipsets 93c46 and 93c66.
+ The driver supports both read as well as write commands.
+
+ If unsure, say N.
+
endmenu
obj-$(CONFIG_AT24) += at24.o
obj-$(CONFIG_SPI_AT25) += at25.o
obj-$(CONFIG_SENSORS_EEPROM) += eeprom.o
+obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o
--- /dev/null
+/*
+ Copyright (C) 2004 - 2006 rt2x00 SourceForge Project
+ <http://rt2x00.serialmonkey.com>
+
+ 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.
+ */
+
+/*
+ Module: eeprom_93cx6
+ Abstract: EEPROM reader routines for 93cx6 chipsets.
+ Supported chipsets: 93c46 & 93c66.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/eeprom_93cx6.h>
+
+MODULE_AUTHOR("http://rt2x00.serialmonkey.com");
+MODULE_VERSION("1.0");
+MODULE_DESCRIPTION("EEPROM 93cx6 chip driver");
+MODULE_LICENSE("GPL");
+
+static inline void eeprom_93cx6_pulse_high(struct eeprom_93cx6 *eeprom)
+{
+ eeprom->reg_data_clock = 1;
+ eeprom->register_write(eeprom);
+
+ /*
+ * Add a short delay for the pulse to work.
+ * According to the specifications the "maximum minimum"
+ * time should be 450ns.
+ */
+ ndelay(450);
+}
+
+static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom)
+{
+ eeprom->reg_data_clock = 0;
+ eeprom->register_write(eeprom);
+
+ /*
+ * Add a short delay for the pulse to work.
+ * According to the specifications the "maximum minimum"
+ * time should be 450ns.
+ */
+ ndelay(450);
+}
+
+static void eeprom_93cx6_startup(struct eeprom_93cx6 *eeprom)
+{
+ /*
+ * Clear all flags, and enable chip select.
+ */
+ eeprom->register_read(eeprom);
+ eeprom->reg_data_in = 0;
+ eeprom->reg_data_out = 0;
+ eeprom->reg_data_clock = 0;
+ eeprom->reg_chip_select = 1;
+ eeprom->register_write(eeprom);
+
+ /*
+ * kick a pulse.
+ */
+ eeprom_93cx6_pulse_high(eeprom);
+ eeprom_93cx6_pulse_low(eeprom);
+}
+
+static void eeprom_93cx6_cleanup(struct eeprom_93cx6 *eeprom)
+{
+ /*
+ * Clear chip_select and data_in flags.
+ */
+ eeprom->register_read(eeprom);
+ eeprom->reg_data_in = 0;
+ eeprom->reg_chip_select = 0;
+ eeprom->register_write(eeprom);
+
+ /*
+ * kick a pulse.
+ */
+ eeprom_93cx6_pulse_high(eeprom);
+ eeprom_93cx6_pulse_low(eeprom);
+}
+
+static void eeprom_93cx6_write_bits(struct eeprom_93cx6 *eeprom,
+ const u16 data, const u16 count)
+{
+ unsigned int i;
+
+ eeprom->register_read(eeprom);
+
+ /*
+ * Clear data flags.
+ */
+ eeprom->reg_data_in = 0;
+ eeprom->reg_data_out = 0;
+
+ /*
+ * Start writing all bits.
+ */
+ for (i = count; i > 0; i--) {
+ /*
+ * Check if this bit needs to be set.
+ */
+ eeprom->reg_data_in = !!(data & (1 << (i - 1)));
+
+ /*
+ * Write the bit to the eeprom register.
+ */
+ eeprom->register_write(eeprom);
+
+ /*
+ * Kick a pulse.
+ */
+ eeprom_93cx6_pulse_high(eeprom);
+ eeprom_93cx6_pulse_low(eeprom);
+ }
+
+ eeprom->reg_data_in = 0;
+ eeprom->register_write(eeprom);
+}
+
+static void eeprom_93cx6_read_bits(struct eeprom_93cx6 *eeprom,
+ u16 *data, const u16 count)
+{
+ unsigned int i;
+ u16 buf = 0;
+
+ eeprom->register_read(eeprom);
+
+ /*
+ * Clear data flags.
+ */
+ eeprom->reg_data_in = 0;
+ eeprom->reg_data_out = 0;
+
+ /*
+ * Start reading all bits.
+ */
+ for (i = count; i > 0; i--) {
+ eeprom_93cx6_pulse_high(eeprom);
+
+ eeprom->register_read(eeprom);
+
+ /*
+ * Clear data_in flag.
+ */
+ eeprom->reg_data_in = 0;
+
+ /*
+ * Read if the bit has been set.
+ */
+ if (eeprom->reg_data_out)
+ buf |= (1 << (i - 1));
+
+ eeprom_93cx6_pulse_low(eeprom);
+ }
+
+ *data = buf;
+}
+
+/**
+ * eeprom_93cx6_read - Read multiple words from eeprom
+ * @eeprom: Pointer to eeprom structure
+ * @word: Word index from where we should start reading
+ * @data: target pointer where the information will have to be stored
+ *
+ * This function will read the eeprom data as host-endian word
+ * into the given data pointer.
+ */
+void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom, const u8 word,
+ u16 *data)
+{
+ u16 command;
+
+ /*
+ * Initialize the eeprom register
+ */
+ eeprom_93cx6_startup(eeprom);
+
+ /*
+ * Select the read opcode and the word to be read.
+ */
+ command = (PCI_EEPROM_READ_OPCODE << eeprom->width) | word;
+ eeprom_93cx6_write_bits(eeprom, command,
+ PCI_EEPROM_WIDTH_OPCODE + eeprom->width);
+
+ /*
+ * Read the requested 16 bits.
+ */
+ eeprom_93cx6_read_bits(eeprom, data, 16);
+
+ /*
+ * Cleanup eeprom register.
+ */
+ eeprom_93cx6_cleanup(eeprom);
+}
+EXPORT_SYMBOL_GPL(eeprom_93cx6_read);
+
+/**
+ * eeprom_93cx6_multiread - Read multiple words from eeprom
+ * @eeprom: Pointer to eeprom structure
+ * @word: Word index from where we should start reading
+ * @data: target pointer where the information will have to be stored
+ * @words: Number of words that should be read.
+ *
+ * This function will read all requested words from the eeprom,
+ * this is done by calling eeprom_93cx6_read() multiple times.
+ * But with the additional change that while the eeprom_93cx6_read
+ * will return host ordered bytes, this method will return little
+ * endian words.
+ */
+void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom, const u8 word,
+ __le16 *data, const u16 words)
+{
+ unsigned int i;
+ u16 tmp;
+
+ for (i = 0; i < words; i++) {
+ tmp = 0;
+ eeprom_93cx6_read(eeprom, word + i, &tmp);
+ data[i] = cpu_to_le16(tmp);
+ }
+}
+EXPORT_SYMBOL_GPL(eeprom_93cx6_multiread);
+
+++ /dev/null
-/*
- Copyright (C) 2004 - 2006 rt2x00 SourceForge Project
- <http://rt2x00.serialmonkey.com>
-
- 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.
- */
-
-/*
- Module: eeprom_93cx6
- Abstract: EEPROM reader routines for 93cx6 chipsets.
- Supported chipsets: 93c46 & 93c66.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/eeprom_93cx6.h>
-
-MODULE_AUTHOR("http://rt2x00.serialmonkey.com");
-MODULE_VERSION("1.0");
-MODULE_DESCRIPTION("EEPROM 93cx6 chip driver");
-MODULE_LICENSE("GPL");
-
-static inline void eeprom_93cx6_pulse_high(struct eeprom_93cx6 *eeprom)
-{
- eeprom->reg_data_clock = 1;
- eeprom->register_write(eeprom);
-
- /*
- * Add a short delay for the pulse to work.
- * According to the specifications the "maximum minimum"
- * time should be 450ns.
- */
- ndelay(450);
-}
-
-static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom)
-{
- eeprom->reg_data_clock = 0;
- eeprom->register_write(eeprom);
-
- /*
- * Add a short delay for the pulse to work.
- * According to the specifications the "maximum minimum"
- * time should be 450ns.
- */
- ndelay(450);
-}
-
-static void eeprom_93cx6_startup(struct eeprom_93cx6 *eeprom)
-{
- /*
- * Clear all flags, and enable chip select.
- */
- eeprom->register_read(eeprom);
- eeprom->reg_data_in = 0;
- eeprom->reg_data_out = 0;
- eeprom->reg_data_clock = 0;
- eeprom->reg_chip_select = 1;
- eeprom->register_write(eeprom);
-
- /*
- * kick a pulse.
- */
- eeprom_93cx6_pulse_high(eeprom);
- eeprom_93cx6_pulse_low(eeprom);
-}
-
-static void eeprom_93cx6_cleanup(struct eeprom_93cx6 *eeprom)
-{
- /*
- * Clear chip_select and data_in flags.
- */
- eeprom->register_read(eeprom);
- eeprom->reg_data_in = 0;
- eeprom->reg_chip_select = 0;
- eeprom->register_write(eeprom);
-
- /*
- * kick a pulse.
- */
- eeprom_93cx6_pulse_high(eeprom);
- eeprom_93cx6_pulse_low(eeprom);
-}
-
-static void eeprom_93cx6_write_bits(struct eeprom_93cx6 *eeprom,
- const u16 data, const u16 count)
-{
- unsigned int i;
-
- eeprom->register_read(eeprom);
-
- /*
- * Clear data flags.
- */
- eeprom->reg_data_in = 0;
- eeprom->reg_data_out = 0;
-
- /*
- * Start writing all bits.
- */
- for (i = count; i > 0; i--) {
- /*
- * Check if this bit needs to be set.
- */
- eeprom->reg_data_in = !!(data & (1 << (i - 1)));
-
- /*
- * Write the bit to the eeprom register.
- */
- eeprom->register_write(eeprom);
-
- /*
- * Kick a pulse.
- */
- eeprom_93cx6_pulse_high(eeprom);
- eeprom_93cx6_pulse_low(eeprom);
- }
-
- eeprom->reg_data_in = 0;
- eeprom->register_write(eeprom);
-}
-
-static void eeprom_93cx6_read_bits(struct eeprom_93cx6 *eeprom,
- u16 *data, const u16 count)
-{
- unsigned int i;
- u16 buf = 0;
-
- eeprom->register_read(eeprom);
-
- /*
- * Clear data flags.
- */
- eeprom->reg_data_in = 0;
- eeprom->reg_data_out = 0;
-
- /*
- * Start reading all bits.
- */
- for (i = count; i > 0; i--) {
- eeprom_93cx6_pulse_high(eeprom);
-
- eeprom->register_read(eeprom);
-
- /*
- * Clear data_in flag.
- */
- eeprom->reg_data_in = 0;
-
- /*
- * Read if the bit has been set.
- */
- if (eeprom->reg_data_out)
- buf |= (1 << (i - 1));
-
- eeprom_93cx6_pulse_low(eeprom);
- }
-
- *data = buf;
-}
-
-/**
- * eeprom_93cx6_read - Read multiple words from eeprom
- * @eeprom: Pointer to eeprom structure
- * @word: Word index from where we should start reading
- * @data: target pointer where the information will have to be stored
- *
- * This function will read the eeprom data as host-endian word
- * into the given data pointer.
- */
-void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom, const u8 word,
- u16 *data)
-{
- u16 command;
-
- /*
- * Initialize the eeprom register
- */
- eeprom_93cx6_startup(eeprom);
-
- /*
- * Select the read opcode and the word to be read.
- */
- command = (PCI_EEPROM_READ_OPCODE << eeprom->width) | word;
- eeprom_93cx6_write_bits(eeprom, command,
- PCI_EEPROM_WIDTH_OPCODE + eeprom->width);
-
- /*
- * Read the requested 16 bits.
- */
- eeprom_93cx6_read_bits(eeprom, data, 16);
-
- /*
- * Cleanup eeprom register.
- */
- eeprom_93cx6_cleanup(eeprom);
-}
-EXPORT_SYMBOL_GPL(eeprom_93cx6_read);
-
-/**
- * eeprom_93cx6_multiread - Read multiple words from eeprom
- * @eeprom: Pointer to eeprom structure
- * @word: Word index from where we should start reading
- * @data: target pointer where the information will have to be stored
- * @words: Number of words that should be read.
- *
- * This function will read all requested words from the eeprom,
- * this is done by calling eeprom_93cx6_read() multiple times.
- * But with the additional change that while the eeprom_93cx6_read
- * will return host ordered bytes, this method will return little
- * endian words.
- */
-void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom, const u8 word,
- __le16 *data, const u16 words)
-{
- unsigned int i;
- u16 tmp;
-
- for (i = 0; i < words; i++) {
- tmp = 0;
- eeprom_93cx6_read(eeprom, word + i, &tmp);
- data[i] = cpu_to_le16(tmp);
- }
-}
-EXPORT_SYMBOL_GPL(eeprom_93cx6_multiread);
-
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff