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Diffstat (limited to 'recipes-kernel/linux/linux-2.6.29/h3600/03_add_features/0022-MFD-driver-for-Atmel-Microcontroller-on-iPaq-h3600.patch')
-rw-r--r--recipes-kernel/linux/linux-2.6.29/h3600/03_add_features/0022-MFD-driver-for-Atmel-Microcontroller-on-iPaq-h3600.patch553
1 files changed, 0 insertions, 553 deletions
diff --git a/recipes-kernel/linux/linux-2.6.29/h3600/03_add_features/0022-MFD-driver-for-Atmel-Microcontroller-on-iPaq-h3600.patch b/recipes-kernel/linux/linux-2.6.29/h3600/03_add_features/0022-MFD-driver-for-Atmel-Microcontroller-on-iPaq-h3600.patch
deleted file mode 100644
index 46a3e8e..0000000
--- a/recipes-kernel/linux/linux-2.6.29/h3600/03_add_features/0022-MFD-driver-for-Atmel-Microcontroller-on-iPaq-h3600.patch
+++ /dev/null
@@ -1,553 +0,0 @@
-From c6132951729a8d37704f8c6b701be3358f538c0f Mon Sep 17 00:00:00 2001
-From: Dmitry Artamonow <mad_soft@inbox.ru>
-Date: Sat, 21 Mar 2009 16:06:56 +0300
-Subject: [PATCH 22/28] MFD: driver for Atmel Microcontroller on iPaq h3600/h3100
-
-This is a port of a driver from handhelds.org 2.6.21 kernel,
-written by Alessandro GARDICH. It has been heavily cleaned and
-converted to mfd-core.
-
-Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
----
- drivers/mfd/Kconfig | 5 +
- drivers/mfd/Makefile | 4 +-
- drivers/mfd/micro.c | 454 +++++++++++++++++++++++++++++++++++++++++++++
- include/linux/mfd/micro.h | 29 +++
- 4 files changed, 491 insertions(+), 1 deletions(-)
- create mode 100644 drivers/mfd/micro.c
- create mode 100644 include/linux/mfd/micro.h
-
-diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
-index 06a2b0f..dbac30e 100644
---- a/drivers/mfd/Kconfig
-+++ b/drivers/mfd/Kconfig
-@@ -34,6 +34,11 @@ config MFD_ASIC3
- This driver supports the ASIC3 multifunction chip found on many
- PDAs (mainly iPAQ and HTC based ones)
-
-+config IPAQ_MICRO
-+ tristate "Atmel Micro ASIC (iPAQ h3100/h3600/h3700) Support"
-+ depends on SA1100_H3600 || SA1100_H3100
-+ select MFD_CORE
-+
- config MFD_DM355EVM_MSP
- bool "DaVinci DM355 EVM microcontroller"
- depends on I2C && MACH_DAVINCI_DM355_EVM
-diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
-index 3afb519..3fb4b39 100644
---- a/drivers/mfd/Makefile
-+++ b/drivers/mfd/Makefile
-@@ -5,6 +5,8 @@
- obj-$(CONFIG_MFD_SM501) += sm501.o
- obj-$(CONFIG_MFD_ASIC3) += asic3.o
-
-+obj-$(CONFIG_IPAQ_MICRO) += micro.o
-+
- obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o
- obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o
-
-@@ -40,4 +42,4 @@ obj-$(CONFIG_PMIC_DA903X) += da903x.o
-
- obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o
- obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
--obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o
-\ No newline at end of file
-+obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o
-diff --git a/drivers/mfd/micro.c b/drivers/mfd/micro.c
-new file mode 100644
-index 0000000..7a15df2
---- /dev/null
-+++ b/drivers/mfd/micro.c
-@@ -0,0 +1,454 @@
-+/*
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ *
-+ * h3600 atmel micro companion support
-+ * based on previous kernel 2.4 version
-+ * Author : Alessandro Gardich <gremlin@gremlin.it>
-+ *
-+ */
-+
-+
-+#include <linux/module.h>
-+#include <linux/version.h>
-+
-+#include <linux/init.h>
-+#include <linux/fs.h>
-+#include <linux/interrupt.h>
-+#include <linux/sched.h>
-+#include <linux/pm.h>
-+#include <linux/sysctl.h>
-+#include <linux/proc_fs.h>
-+#include <linux/delay.h>
-+#include <linux/device.h>
-+#include <linux/input.h>
-+#include <linux/platform_device.h>
-+#include <linux/backlight.h>
-+#include <linux/fb.h>
-+#include <linux/mfd/core.h>
-+
-+#include <asm/irq.h>
-+#include <asm/atomic.h>
-+#include <mach/hardware.h>
-+
-+#include <mach/h3600.h>
-+#include <mach/SA-1100.h>
-+
-+/* FIXME #include "../../arch/arm/mach-sa1100/generic.h" */
-+
-+#include <linux/mfd/micro.h>
-+
-+#define TX_BUF_SIZE 32
-+#define RX_BUF_SIZE 16
-+#define CHAR_SOF 0x02
-+
-+/* state of receiver parser */
-+enum rx_state {
-+ STATE_SOF = 0, /* Next byte should be start of frame */
-+ STATE_ID, /* Next byte is ID & message length */
-+ STATE_DATA, /* Next byte is a data byte */
-+ STATE_CHKSUM /* Next byte should be checksum */
-+};
-+
-+struct h3600_txdev {
-+ unsigned char buf[TX_BUF_SIZE];
-+ atomic_t head;
-+ atomic_t tail;
-+};
-+static struct h3600_txdev tx; /* transmit ISR state */
-+
-+struct h3600_rxdev {
-+ enum rx_state state; /* context of rx state machine */
-+ unsigned char chksum; /* calculated checksum */
-+ int id; /* message ID from packet */
-+ unsigned int len; /* rx buffer length */
-+ unsigned int index; /* rx buffer index */
-+ unsigned char buf[RX_BUF_SIZE]; /* rx buffer size */
-+};
-+
-+static struct h3600_rxdev rx; /* receive ISR state */
-+
-+/*--- backlight ---*/
-+#define MAX_BRIGHTNESS 255
-+
-+static void micro_set_bl_intensity(int intensity)
-+{
-+ unsigned char data[3];
-+
-+ data[0] = 0x01;
-+ data[1] = intensity > 0 ? 1 : 0;
-+ data[2] = intensity;
-+ h3600_micro_tx_msg(0x0D, 3, data);
-+}
-+
-+static struct generic_bl_info micro_bl_info = {
-+ .default_intensity = MAX_BRIGHTNESS / 4,
-+ .limit_mask = 0xffff,
-+ .max_intensity = MAX_BRIGHTNESS,
-+ .set_bl_intensity = micro_set_bl_intensity,
-+};
-+
-+/*--- manage messages from Atmel Micro ---*/
-+
-+static struct micro_private_t micro;
-+
-+static void h3600_micro_rx_msg(int id, int len, unsigned char *data)
-+{
-+ int i;
-+
-+ /*printk(KERN_ERR "h3600_micro : got a message from micro\n");*/
-+ spin_lock(micro.lock);
-+ switch (id) {
-+ case 0x0D: /* backlight */
-+ /* empty ack, just ignore */
-+ break;
-+ case 0x02: /* keyboard */
-+ if (micro.h_key != NULL)
-+ micro.h_key(len, data);
-+ else
-+ printk(KERN_ERR "h3600_micro : key message ignored, "
-+ "no handle \n");
-+ break;
-+ case 0x03: /* touchscreen */
-+ if (micro.h_ts != NULL)
-+ micro.h_ts(len, data);
-+ else
-+ printk(KERN_ERR "h3600_micro : touchscreen message"
-+ " ignored, no handle \n");
-+ break;
-+ case 0x06: /* temperature */
-+ if (micro.h_temp != NULL)
-+ micro.h_temp(len, data);
-+ else
-+ printk(KERN_ERR "h3600_micro : temperature message"
-+ " ignored, no handle \n");
-+ break;
-+ case 0x09: /* battery */
-+ if (micro.h_batt != NULL)
-+ micro.h_batt(len, data);
-+ else
-+ printk(KERN_ERR "h3600_micro : battery message"
-+ " ignored, no handle \n");
-+ break;
-+ default:
-+ printk(KERN_ERR "h3600_micro : unknown msg %d [%d] ", id, len);
-+ for (i = 0; i < len; ++i)
-+ printk("0x%02x ", data[i]);
-+ printk("\n");
-+ }
-+ spin_unlock(micro.lock);
-+}
-+
-+/*--- low lever serial interface ---*/
-+
-+static void h3600_micro_process_char(unsigned char ch)
-+{
-+ switch (rx.state) {
-+ case STATE_SOF: /* Looking for SOF */
-+ if (ch == CHAR_SOF)
-+ rx.state = STATE_ID; /* Next byte is the id and len */
-+ /* else
-+ g_statistics.missing_sof++; // FIXME */
-+ break;
-+ case STATE_ID: /* Looking for id and len byte */
-+ rx.id = (ch & 0xf0) >> 4 ;
-+ rx.len = (ch & 0x0f);
-+ rx.index = 0;
-+ rx.chksum = ch;
-+ rx.state = (rx.len > 0) ? STATE_DATA : STATE_CHKSUM;
-+ break;
-+ case STATE_DATA: /* Looking for 'len' data bytes */
-+ rx.chksum += ch;
-+ rx.buf[rx.index] = ch;
-+ if (++rx.index == rx.len)
-+ rx.state = STATE_CHKSUM;
-+ break;
-+ case STATE_CHKSUM: /* Looking for the checksum */
-+ if (ch == rx.chksum)
-+ h3600_micro_rx_msg(rx.id, rx.len, rx.buf);
-+ /* else
-+ g_statistics.bad_checksum++; //FIXME */
-+ rx.state = STATE_SOF;
-+ break;
-+ }
-+}
-+
-+static void h3600_micro_rx_chars(void)
-+{
-+ unsigned int status, ch;
-+
-+ while ((status = Ser1UTSR1) & UTSR1_RNE) {
-+ ch = Ser1UTDR;
-+ /* statistics.rx++; // FIXME */
-+ if (status & UTSR1_PRE) /* Parity error */
-+ printk(KERN_ERR "h3600_micro_rx : parity error\n");
-+ /* statistics.parity++; // FIXME */
-+ else if (status & UTSR1_FRE) /* Framing error */
-+ printk(KERN_ERR "h3600_micro_rx : framing error\n");
-+ /* statistics.frame++; // FIXME */
-+ else if (status & UTSR1_ROR) /* Overrun error */
-+ printk(KERN_ERR "h3600_micro_rx : overrun error\n");
-+ /*statistics.overrun++;*/
-+ h3600_micro_process_char(ch);
-+ }
-+}
-+
-+int h3600_micro_tx_msg(unsigned char id, unsigned char len, unsigned char *data)
-+{
-+ int free_space;
-+ int i;
-+ unsigned char checksum;
-+ int head, tail;
-+
-+ tail = atomic_read(&tx.tail);
-+ head = atomic_read(&tx.head);
-+
-+ free_space = (head >= tail) ? (TX_BUF_SIZE - head + tail - 1) \
-+ : (tail - head - 1);
-+
-+ if (free_space < len + 2) {
-+ printk(KERN_ERR "%s : no avaiable space on tx buffer.",
-+ __func__);
-+ return -EIO;
-+ }
-+
-+ if (0)
-+ printk(KERN_ERR "%s : avaiable space %d %d %d\n",
-+ __func__, free_space, head, tail);
-+
-+ tx.buf[head] = (unsigned char) CHAR_SOF;
-+ head = ((head+1) % TX_BUF_SIZE);
-+
-+ checksum = ((id & 0x0f) << 4) | (len & 0x0f);
-+ tx.buf[head] = checksum;
-+ head = ((head+1) % TX_BUF_SIZE);
-+
-+ for (i = 0; i < len; ++i) {
-+ tx.buf[head] = data[i];
-+ head = ((head + 1) % TX_BUF_SIZE);
-+ checksum += data[i];
-+ }
-+
-+ tx.buf[head] = checksum;
-+ head = ((head + 1) % TX_BUF_SIZE);
-+
-+ atomic_set(&tx.head, head);
-+
-+ Ser1UTCR3 |= UTCR3_TIE; /* enable interrupt */
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(h3600_micro_tx_msg);
-+
-+
-+static void h3600_micro_tx_chars(void)
-+{
-+ int head, tail;
-+
-+ head = atomic_read(&tx.head);
-+ tail = atomic_read(&tx.tail);
-+
-+ while ((head != tail) && (Ser1UTSR1 & UTSR1_TNF)) {
-+ Ser1UTDR = tx.buf[tail];
-+ tail = ((tail+1) % TX_BUF_SIZE);
-+ }
-+ atomic_set(&tx.tail, tail);
-+
-+ if (tail == head) /* Stop interrupts */
-+ Ser1UTCR3 &= ~UTCR3_TIE;
-+}
-+
-+static void h3600_micro_reset_comm(void)
-+{
-+ printk(KERN_ERR "%s: initializing serial port\n", __func__);
-+
-+ /* Initialize Serial channel protocol frame */
-+ rx.state = STATE_SOF; /* Reset the state machine */
-+
-+ atomic_set(&tx.head, 0);
-+ atomic_set(&tx.tail, 0);
-+
-+ /* Set up interrupts */
-+ Ser1SDCR0 = 0x1; /* Select UART mode */
-+
-+ Ser1UTCR3 = 0; /* Clean up CR3 */
-+ Ser1UTCR0 = UTCR0_8BitData | UTCR0_1StpBit; /* Format: 8N1 */
-+ Ser1UTCR1 = 0; /* Baud rate: 115200 */
-+ Ser1UTCR2 = 0x1;
-+
-+ Ser1UTSR0 = 0xff; /* Clear SR0 */
-+ Ser1UTCR3 = UTCR3_TXE | UTCR3_RXE | UTCR3_RIE; /* Enable RX int */
-+ Ser1UTCR3 &= ~UTCR3_TIE; /* Disable TX int */
-+}
-+
-+/*--- core interrupt ---*/
-+enum MessageHandleType {
-+ HANDLE_NORMAL,
-+ HANDLE_ACK,
-+ HANDLE_ERROR
-+};
-+
-+#define MICRO_MSG_WAITING 0
-+#define MICRO_MSG_SUCCESS 1
-+#define MICRO_MSG_ERROR -1
-+
-+static irqreturn_t h3600_micro_serial_isr(int irq, void *dev_id)
-+{
-+ unsigned int status; /* UTSR0 */
-+ int head, tail;
-+ /* unsigned int pass_counter = 0; // FIXME */
-+
-+ if (0)
-+ printk(KERN_ERR "%s\n", __func__); /* FIXME */
-+
-+ /* statistics.isr++; // FIXME */
-+ status = Ser1UTSR0;
-+ do {
-+ if (status & (UTSR0_RID | UTSR0_RFS)) {
-+ if (status & UTSR0_RID)
-+ /* Clear the Receiver IDLE bit */
-+ Ser1UTSR0 = UTSR0_RID;
-+ h3600_micro_rx_chars();
-+ }
-+
-+ /* Clear break bits */
-+ if (status & (UTSR0_RBB | UTSR0_REB))
-+ Ser1UTSR0 = status & (UTSR0_RBB | UTSR0_REB);
-+
-+ if (status & UTSR0_TFS)
-+ h3600_micro_tx_chars();
-+
-+ status = Ser1UTSR0;
-+
-+ head = atomic_read(&tx.head);
-+ tail = atomic_read(&tx.tail);
-+ } while (((head != tail) && (status & UTSR0_TFS)) ||
-+ status & (UTSR0_RFS | UTSR0_RID));
-+ /* && pass_counter++ < H3600_TS_PASS_LIMIT ); */
-+/*
-+ if ( pass_counter >= H3600_TS_PASS_LIMIT ) // FIXME
-+ statistics.pass_limit++;
-+*/
-+
-+ return IRQ_HANDLED;
-+}
-+
-+/*--- sub devices declaration ---*/
-+enum {
-+ MICRO_CELL_BACKLIGHT,
-+ MICRO_CELL_BATTERY,
-+ MICRO_CELL_KEYS,
-+ MICRO_CELL_TS,
-+};
-+
-+static struct mfd_cell micro_cells[] = {
-+ [MICRO_CELL_BACKLIGHT] = {
-+ .name = "generic-bl",
-+ .platform_data = &micro_bl_info,
-+ .data_size = sizeof(micro_bl_info),
-+ },
-+ [MICRO_CELL_BATTERY] = {
-+ .name = "h3600-micro-battery",
-+ .driver_data = &micro,
-+ },
-+ [MICRO_CELL_KEYS] = {
-+ .name = "h3600-micro-keys",
-+ .driver_data = &micro,
-+ },
-+ [MICRO_CELL_TS] = {
-+ .name = "h3600-micro-ts",
-+ .driver_data = &micro,
-+ },
-+};
-+
-+/*--- micro ---*/
-+static int micro_suspend(struct platform_device *dev, pm_message_t state)
-+{
-+ printk(KERN_ERR "micro : suspend \n");
-+ /* __micro_backlight_set_power(FB_BLANK_POWERDOWN); // FIXME */
-+ return 0;
-+}
-+
-+static int micro_resume(struct platform_device *dev)
-+{
-+ printk(KERN_ERR "micro : resume\n");
-+ h3600_micro_reset_comm();
-+ mdelay(10);
-+
-+ return 0;
-+}
-+
-+static int micro_probe(struct platform_device *dev)
-+{
-+ int result = 0;
-+ /* struct platform_device *plat; */
-+
-+ printk(KERN_ERR "micro probe : begin \n");
-+
-+ h3600_micro_reset_comm();
-+
-+ result = request_irq(IRQ_Ser1UART, h3600_micro_serial_isr,
-+ IRQF_SHARED | IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
-+ "h3600_micro", h3600_micro_serial_isr);
-+ if (result) {
-+ printk(KERN_CRIT "%s: unable to grab serial port IRQ\n",
-+ __func__);
-+ return result;
-+ } else
-+ printk(KERN_ERR "h3600_micro : grab serial port IRQ\n");
-+
-+ result = mfd_add_devices(&dev->dev, dev->id, micro_cells,
-+ ARRAY_SIZE(micro_cells), NULL, 0);
-+ if (result != 0) {
-+ printk(KERN_ERR "micro probe : platform_add_devices"
-+ " fail [%d].\n", result);
-+ }
-+
-+ spin_lock_init(&micro.lock);
-+
-+ printk(KERN_ERR "micro probe : end [%d]\n", result);
-+
-+ return result;
-+}
-+
-+static int micro_remove(struct platform_device *dev)
-+{
-+ int i;
-+
-+ mfd_remove_devices(&dev->dev);
-+
-+ Ser1UTCR3 &= ~(UTCR3_RXE | UTCR3_RIE); /* disable receive interrupt */
-+ Ser1UTCR3 &= ~(UTCR3_TXE | UTCR3_TIE); /* disable transmit interrupt */
-+ free_irq(IRQ_Ser1UART, h3600_micro_serial_isr);
-+ return 0;
-+}
-+
-+static struct platform_driver micro_device_driver = {
-+ .driver = {
-+ .name = "h3600-micro",
-+ },
-+ .probe = micro_probe,
-+ .remove = micro_remove,
-+ .suspend = micro_suspend,
-+ .resume = micro_resume,
-+ /* .shutdown = micro_suspend, // FIXME */
-+};
-+
-+static int micro_init(void)
-+{
-+ return platform_driver_register(&micro_device_driver);
-+}
-+
-+static void micro_cleanup(void)
-+{
-+ platform_driver_unregister(&micro_device_driver);
-+}
-+
-+module_init(micro_init);
-+module_exit(micro_cleanup);
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("gremlin.it");
-+MODULE_DESCRIPTION("driver for iPAQ Atmel micro core and backlight");
-+
-diff --git a/include/linux/mfd/micro.h b/include/linux/mfd/micro.h
-new file mode 100644
-index 0000000..7d185ec
---- /dev/null
-+++ b/include/linux/mfd/micro.h
-@@ -0,0 +1,29 @@
-+/*
-+ * some definition of intercomunication structures for micro
-+ * and it's sub devices
-+ */
-+
-+#ifndef _MICRO_H_
-+#define _MICRO_H_
-+
-+#include <linux/spinlock.h>
-+
-+
-+#define TX_BUF_SIZE 32
-+#define RX_BUF_SIZE 16
-+#define CHAR_SOF 0x02
-+
-+extern struct platform_device h3600micro_device;
-+
-+struct micro_private_t {
-+ spinlock_t lock;
-+ void (*h_key) (int len, unsigned char *data);
-+ void (*h_batt) (int len, unsigned char *data);
-+ void (*h_temp) (int len, unsigned char *data);
-+ void (*h_ts) (int len, unsigned char *data);
-+};
-+
-+int h3600_micro_tx_msg(unsigned char id, unsigned char len,
-+ unsigned char *data);
-+
-+#endif /* _MICRO_H_ */
---
-1.6.1.3
-
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-02 20:56:14 +0000