diff options
Diffstat (limited to 'drivers/misc')
28 files changed, 223 insertions, 2362 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 2661f6e366f..98a442da892 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -64,6 +64,7 @@ config AB8500_PWM bool "AB8500 PWM support" depends on AB8500_CORE && ARCH_U8500 select HAVE_PWM + depends on !PWM help This driver exports functions to enable/disble/config/free Pulse Width Modulation in the Analog Baseband Chip AB8500. @@ -511,7 +512,6 @@ config USB_SWITCH_FSA9480 source "drivers/misc/c2port/Kconfig" source "drivers/misc/eeprom/Kconfig" source "drivers/misc/cb710/Kconfig" -source "drivers/misc/iwmc3200top/Kconfig" source "drivers/misc/ti-st/Kconfig" source "drivers/misc/lis3lv02d/Kconfig" source "drivers/misc/carma/Kconfig" diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 456972faaeb..b88df7a350b 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -36,7 +36,6 @@ obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o obj-$(CONFIG_DS1682) += ds1682.o obj-$(CONFIG_TI_DAC7512) += ti_dac7512.o obj-$(CONFIG_C2PORT) += c2port/ -obj-$(CONFIG_IWMC3200TOP) += iwmc3200top/ obj-$(CONFIG_HMC6352) += hmc6352.o obj-y += eeprom/ obj-y += cb710/ diff --git a/drivers/misc/ab8500-pwm.c b/drivers/misc/ab8500-pwm.c index 042a8fe4efa..d7a9aa14e5d 100644 --- a/drivers/misc/ab8500-pwm.c +++ b/drivers/misc/ab8500-pwm.c @@ -142,16 +142,10 @@ static int __devexit ab8500_pwm_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id ab8500_pwm_match[] = { - { .compatible = "stericsson,ab8500-pwm", }, - {} -}; - static struct platform_driver ab8500_pwm_driver = { .driver = { .name = "ab8500-pwm", .owner = THIS_MODULE, - .of_match_table = ab8500_pwm_match, }, .probe = ab8500_pwm_probe, .remove = __devexit_p(ab8500_pwm_remove), diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c index 85cc7710193..9d5eed75466 100644 --- a/drivers/misc/cb710/core.c +++ b/drivers/misc/cb710/core.c @@ -180,7 +180,7 @@ static int cb710_suspend(struct pci_dev *pdev, pm_message_t state) pci_save_state(pdev); pci_disable_device(pdev); if (state.event & PM_EVENT_SLEEP) - pci_set_power_state(pdev, PCI_D3cold); + pci_set_power_state(pdev, PCI_D3hot); return 0; } diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 0842c2994ee..25003d6ceb5 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -19,7 +19,7 @@ #include <linux/spi/spi.h> #include <linux/spi/eeprom.h> - +#include <linux/of.h> /* * NOTE: this is an *EEPROM* driver. The vagaries of product naming @@ -305,25 +305,54 @@ static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf, static int at25_probe(struct spi_device *spi) { struct at25_data *at25 = NULL; - const struct spi_eeprom *chip; + struct spi_eeprom chip; + struct device_node *np = spi->dev.of_node; int err; int sr; int addrlen; /* Chip description */ - chip = spi->dev.platform_data; - if (!chip) { - dev_dbg(&spi->dev, "no chip description\n"); - err = -ENODEV; - goto fail; - } + if (!spi->dev.platform_data) { + if (np) { + u32 val; + + memset(&chip, 0, sizeof(chip)); + strncpy(chip.name, np->name, 10); + + err = of_property_read_u32(np, "at25,byte-len", &val); + if (err) { + dev_dbg(&spi->dev, "invalid chip dt description\n"); + goto fail; + } + chip.byte_len = val; + + err = of_property_read_u32(np, "at25,addr-mode", &val); + if (err) { + dev_dbg(&spi->dev, "invalid chip dt description\n"); + goto fail; + } + chip.flags = (u16)val; + + err = of_property_read_u32(np, "at25,page-size", &val); + if (err) { + dev_dbg(&spi->dev, "invalid chip dt description\n"); + goto fail; + } + chip.page_size = (u16)val; + } else { + dev_dbg(&spi->dev, "no chip description\n"); + err = -ENODEV; + goto fail; + } + } else + chip = *(struct spi_eeprom *)spi->dev.platform_data; /* For now we only support 8/16/24 bit addressing */ - if (chip->flags & EE_ADDR1) + if (chip.flags & EE_ADDR1) addrlen = 1; - else if (chip->flags & EE_ADDR2) + else if (chip.flags & EE_ADDR2) addrlen = 2; - else if (chip->flags & EE_ADDR3) + else if (chip.flags & EE_ADDR3) addrlen = 3; else { dev_dbg(&spi->dev, "unsupported address type\n"); @@ -348,7 +377,7 @@ static int at25_probe(struct spi_device *spi) } mutex_init(&at25->lock); - at25->chip = *chip; + at25->chip = chip; at25->spi = spi_dev_get(spi); dev_set_drvdata(&spi->dev, at25); at25->addrlen = addrlen; @@ -369,7 +398,7 @@ static int at25_probe(struct spi_device *spi) at25->mem.read = at25_mem_read; at25->bin.size = at25->chip.byte_len; - if (!(chip->flags & EE_READONLY)) { + if (!(chip.flags & EE_READONLY)) { at25->bin.write = at25_bin_write; at25->bin.attr.mode |= S_IWUSR; at25->mem.write = at25_mem_write; @@ -379,8 +408,8 @@ static int at25_probe(struct spi_device *spi) if (err) goto fail; - if (chip->setup) - chip->setup(&at25->mem, chip->context); + if (chip.setup) + chip.setup(&at25->mem, chip.context); dev_info(&spi->dev, "%Zd %s %s eeprom%s, pagesize %u\n", (at25->bin.size < 1024) @@ -388,7 +417,7 @@ static int at25_probe(struct spi_device *spi) : (at25->bin.size / 1024), (at25->bin.size < 1024) ? "Byte" : "KByte", at25->chip.name, - (chip->flags & EE_READONLY) ? " (readonly)" : "", + (chip.flags & EE_READONLY) ? " (readonly)" : "", at25->chip.page_size); return 0; fail: diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c index fffc227181b..6df0da4085e 100644 --- a/drivers/misc/hpilo.c +++ b/drivers/misc/hpilo.c @@ -30,6 +30,7 @@ static struct class *ilo_class; static unsigned int ilo_major; +static unsigned int max_ccb = MIN_CCB; static char ilo_hwdev[MAX_ILO_DEV]; static inline int get_entry_id(int entry) @@ -424,7 +425,7 @@ static void ilo_set_reset(struct ilo_hwinfo *hw) * Mapped memory is zeroed on ilo reset, so set a per ccb flag * to indicate that this ccb needs to be closed and reopened. */ - for (slot = 0; slot < MAX_CCB; slot++) { + for (slot = 0; slot < max_ccb; slot++) { if (!hw->ccb_alloc[slot]) continue; set_channel_reset(&hw->ccb_alloc[slot]->driver_ccb); @@ -535,7 +536,7 @@ static int ilo_close(struct inode *ip, struct file *fp) struct ilo_hwinfo *hw; unsigned long flags; - slot = iminor(ip) % MAX_CCB; + slot = iminor(ip) % max_ccb; hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev); spin_lock(&hw->open_lock); @@ -566,7 +567,7 @@ static int ilo_open(struct inode *ip, struct file *fp) struct ilo_hwinfo *hw; unsigned long flags; - slot = iminor(ip) % MAX_CCB; + slot = iminor(ip) % max_ccb; hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev); /* new ccb allocation */ @@ -663,7 +664,7 @@ static irqreturn_t ilo_isr(int irq, void *data) ilo_set_reset(hw); } - for (i = 0; i < MAX_CCB; i++) { + for (i = 0; i < max_ccb; i++) { if (!hw->ccb_alloc[i]) continue; if (pending & (1 << i)) @@ -697,14 +698,14 @@ static int __devinit ilo_map_device(struct pci_dev *pdev, struct ilo_hwinfo *hw) } /* map the adapter shared memory region */ - hw->ram_vaddr = pci_iomap(pdev, 2, MAX_CCB * ILOHW_CCB_SZ); + hw->ram_vaddr = pci_iomap(pdev, 2, max_ccb * ILOHW_CCB_SZ); if (hw->ram_vaddr == NULL) { dev_err(&pdev->dev, "Error mapping shared mem\n"); goto mmio_free; } /* map the doorbell aperture */ - hw->db_vaddr = pci_iomap(pdev, 3, MAX_CCB * ONE_DB_SIZE); + hw->db_vaddr = pci_iomap(pdev, 3, max_ccb * ONE_DB_SIZE); if (hw->db_vaddr == NULL) { dev_err(&pdev->dev, "Error mapping doorbell\n"); goto ram_free; @@ -727,7 +728,7 @@ static void ilo_remove(struct pci_dev *pdev) clear_device(ilo_hw); minor = MINOR(ilo_hw->cdev.dev); - for (i = minor; i < minor + MAX_CCB; i++) + for (i = minor; i < minor + max_ccb; i++) device_destroy(ilo_class, MKDEV(ilo_major, i)); cdev_del(&ilo_hw->cdev); @@ -737,7 +738,7 @@ static void ilo_remove(struct pci_dev *pdev) pci_release_regions(pdev); pci_disable_device(pdev); kfree(ilo_hw); - ilo_hwdev[(minor / MAX_CCB)] = 0; + ilo_hwdev[(minor / max_ccb)] = 0; } static int __devinit ilo_probe(struct pci_dev *pdev, @@ -746,6 +747,11 @@ static int __devinit ilo_probe(struct pci_dev *pdev, int devnum, minor, start, error; struct ilo_hwinfo *ilo_hw; + if (max_ccb > MAX_CCB) + max_ccb = MAX_CCB; + else if (max_ccb < MIN_CCB) + max_ccb = MIN_CCB; + /* find a free range for device files */ for (devnum = 0; devnum < MAX_ILO_DEV; devnum++) { if (ilo_hwdev[devnum] == 0) { @@ -795,14 +801,14 @@ static int __devinit ilo_probe(struct pci_dev *pdev, cdev_init(&ilo_hw->cdev, &ilo_fops); ilo_hw->cdev.owner = THIS_MODULE; - start = devnum * MAX_CCB; - error = cdev_add(&ilo_hw->cdev, MKDEV(ilo_major, start), MAX_CCB); + start = devnum * max_ccb; + error = cdev_add(&ilo_hw->cdev, MKDEV(ilo_major, start), max_ccb); if (error) { dev_err(&pdev->dev, "Could not add cdev\n"); goto remove_isr; } - for (minor = 0 ; minor < MAX_CCB; minor++) { + for (minor = 0 ; minor < max_ccb; minor++) { struct device *dev; dev = device_create(ilo_class, &pdev->dev, MKDEV(ilo_major, minor), NULL, @@ -879,11 +885,14 @@ static void __exit ilo_exit(void) class_destroy(ilo_class); } -MODULE_VERSION("1.2"); +MODULE_VERSION("1.3"); MODULE_ALIAS(ILO_NAME); MODULE_DESCRIPTION(ILO_NAME); MODULE_AUTHOR("David Altobelli <david.altobelli@hp.com>"); MODULE_LICENSE("GPL v2"); +module_param(max_ccb, uint, 0444); +MODULE_PARM_DESC(max_ccb, "Maximum number of HP iLO channels to attach (8)"); + module_init(ilo_init); module_exit(ilo_exit); diff --git a/drivers/misc/hpilo.h b/drivers/misc/hpilo.h index 54e43adbdea..b97672e0cf9 100644 --- a/drivers/misc/hpilo.h +++ b/drivers/misc/hpilo.h @@ -14,7 +14,9 @@ #define ILO_NAME "hpilo" /* max number of open channel control blocks per device, hw limited to 32 */ -#define MAX_CCB 8 +#define MAX_CCB 24 +/* min number of open channel control blocks per device, hw limited to 32 */ +#define MIN_CCB 8 /* max number of supported devices */ #define MAX_ILO_DEV 1 /* max number of files */ diff --git a/drivers/misc/iwmc3200top/Kconfig b/drivers/misc/iwmc3200top/Kconfig deleted file mode 100644 index 9e4b88fb57f..00000000000 --- a/drivers/misc/iwmc3200top/Kconfig +++ /dev/null @@ -1,20 +0,0 @@ -config IWMC3200TOP - tristate "Intel Wireless MultiCom Top Driver" - depends on MMC && EXPERIMENTAL - select FW_LOADER - ---help--- - Intel Wireless MultiCom 3200 Top driver is responsible for - for firmware load and enabled coms enumeration - -config IWMC3200TOP_DEBUG - bool "Enable full debug output of iwmc3200top Driver" - depends on IWMC3200TOP - ---help--- - Enable full debug output of iwmc3200top Driver - -config IWMC3200TOP_DEBUGFS - bool "Enable Debugfs debugging interface for iwmc3200top" - depends on IWMC3200TOP - ---help--- - Enable creation of debugfs files for iwmc3200top - diff --git a/drivers/misc/iwmc3200top/Makefile b/drivers/misc/iwmc3200top/Makefile deleted file mode 100644 index fbf53fb4634..00000000000 --- a/drivers/misc/iwmc3200top/Makefile +++ /dev/null @@ -1,29 +0,0 @@ -# iwmc3200top - Intel Wireless MultiCom 3200 Top Driver -# drivers/misc/iwmc3200top/Makefile -# -# Copyright (C) 2009 Intel Corporation. All rights reserved. -# -# 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. -# -# 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., 51 Franklin Street, Fifth Floor, Boston, MA -# 02110-1301, USA. -# -# -# Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> -# - -# -# - -obj-$(CONFIG_IWMC3200TOP) += iwmc3200top.o -iwmc3200top-objs := main.o fw-download.o -iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUG) += log.o -iwmc3200top-$(CONFIG_IWMC3200TOP_DEBUGFS) += debugfs.o diff --git a/drivers/misc/iwmc3200top/debugfs.c b/drivers/misc/iwmc3200top/debugfs.c deleted file mode 100644 index 62fbaec4820..00000000000 --- a/drivers/misc/iwmc3200top/debugfs.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/debufs.c - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/ctype.h> -#include <linux/mmc/sdio_func.h> -#include <linux/mmc/sdio.h> -#include <linux/debugfs.h> - -#include "iwmc3200top.h" -#include "fw-msg.h" -#include "log.h" -#include "debugfs.h" - - - -/* Constants definition */ -#define HEXADECIMAL_RADIX 16 - -/* Functions definition */ - - -#define DEBUGFS_ADD(name, parent) do { \ - dbgfs->dbgfs_##parent##_files.file_##name = \ - debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \ - &iwmct_dbgfs_##name##_ops); \ -} while (0) - -#define DEBUGFS_RM(name) do { \ - debugfs_remove(name); \ - name = NULL; \ -} while (0) - -#define DEBUGFS_READ_FUNC(name) \ -ssize_t iwmct_dbgfs_##name##_read(struct file *file, \ - char __user *user_buf, \ - size_t count, loff_t *ppos); - -#define DEBUGFS_WRITE_FUNC(name) \ -ssize_t iwmct_dbgfs_##name##_write(struct file *file, \ - const char __user *user_buf, \ - size_t count, loff_t *ppos); - -#define DEBUGFS_READ_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name) \ - static const struct file_operations iwmct_dbgfs_##name##_ops = { \ - .read = iwmct_dbgfs_##name##_read, \ - .open = iwmct_dbgfs_open_file_generic, \ - .llseek = generic_file_llseek, \ - }; - -#define DEBUGFS_WRITE_FILE_OPS(name) \ - DEBUGFS_WRITE_FUNC(name) \ - static const struct file_operations iwmct_dbgfs_##name##_ops = { \ - .write = iwmct_dbgfs_##name##_write, \ - .open = iwmct_dbgfs_open_file_generic, \ - .llseek = generic_file_llseek, \ - }; - -#define DEBUGFS_READ_WRITE_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name) \ - DEBUGFS_WRITE_FUNC(name) \ - static const struct file_operations iwmct_dbgfs_##name##_ops = {\ - .write = iwmct_dbgfs_##name##_write, \ - .read = iwmct_dbgfs_##name##_read, \ - .open = iwmct_dbgfs_open_file_generic, \ - .llseek = generic_file_llseek, \ - }; - - -/* Debugfs file ops definitions */ - -/* - * Create the debugfs files and directories - * - */ -void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name) -{ - struct iwmct_debugfs *dbgfs; - - dbgfs = kzalloc(sizeof(struct iwmct_debugfs), GFP_KERNEL); - if (!dbgfs) { - LOG_ERROR(priv, DEBUGFS, "failed to allocate %zd bytes\n", - sizeof(struct iwmct_debugfs)); - return; - } - - priv->dbgfs = dbgfs; - dbgfs->name = name; - dbgfs->dir_drv = debugfs_create_dir(name, NULL); - if (!dbgfs->dir_drv) { - LOG_ERROR(priv, DEBUGFS, "failed to create debugfs dir\n"); - return; - } - - return; -} - -/** - * Remove the debugfs files and directories - * - */ -void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs) -{ - if (!dbgfs) - return; - - DEBUGFS_RM(dbgfs->dir_drv); - kfree(dbgfs); - dbgfs = NULL; -} - diff --git a/drivers/misc/iwmc3200top/debugfs.h b/drivers/misc/iwmc3200top/debugfs.h deleted file mode 100644 index 71d45759b40..00000000000 --- a/drivers/misc/iwmc3200top/debugfs.h +++ /dev/null @@ -1,58 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/debufs.h - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#ifndef __DEBUGFS_H__ -#define __DEBUGFS_H__ - - -#ifdef CONFIG_IWMC3200TOP_DEBUGFS - -struct iwmct_debugfs { - const char *name; - struct dentry *dir_drv; - struct dir_drv_files { - } dbgfs_drv_files; -}; - -void iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name); -void iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs); - -#else /* CONFIG_IWMC3200TOP_DEBUGFS */ - -struct iwmct_debugfs; - -static inline void -iwmct_dbgfs_register(struct iwmct_priv *priv, const char *name) -{} - -static inline void -iwmct_dbgfs_unregister(struct iwmct_debugfs *dbgfs) -{} - -#endif /* CONFIG_IWMC3200TOP_DEBUGFS */ - -#endif /* __DEBUGFS_H__ */ - diff --git a/drivers/misc/iwmc3200top/fw-download.c b/drivers/misc/iwmc3200top/fw-download.c deleted file mode 100644 index e27afde6e99..00000000000 --- a/drivers/misc/iwmc3200top/fw-download.c +++ /dev/null @@ -1,358 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/fw-download.c - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#include <linux/firmware.h> -#include <linux/mmc/sdio_func.h> -#include <linux/slab.h> -#include <asm/unaligned.h> - -#include "iwmc3200top.h" -#include "log.h" -#include "fw-msg.h" - -#define CHECKSUM_BYTES_NUM sizeof(u32) - -/** - init parser struct with file - */ -static int iwmct_fw_parser_init(struct iwmct_priv *priv, const u8 *file, - size_t file_size, size_t block_size) -{ - struct iwmct_parser *parser = &priv->parser; - struct iwmct_fw_hdr *fw_hdr = &parser->versions; - - LOG_TRACE(priv, FW_DOWNLOAD, "-->\n"); - - LOG_INFO(priv, FW_DOWNLOAD, "file_size=%zd\n", file_size); - - parser->file = file; - parser->file_size = file_size; - parser->cur_pos = 0; - parser->entry_point = 0; - parser->buf = kzalloc(block_size, GFP_KERNEL); - if (!parser->buf) { - LOG_ERROR(priv, FW_DOWNLOAD, "kzalloc error\n"); - return -ENOMEM; - } - parser->buf_size = block_size; - - /* extract fw versions */ - memcpy(fw_hdr, parser->file, sizeof(struct iwmct_fw_hdr)); - LOG_INFO(priv, FW_DOWNLOAD, "fw versions are:\n" - "top %u.%u.%u gps %u.%u.%u bt %u.%u.%u tic %s\n", - fw_hdr->top_major, fw_hdr->top_minor, fw_hdr->top_revision, - fw_hdr->gps_major, fw_hdr->gps_minor, fw_hdr->gps_revision, - fw_hdr->bt_major, fw_hdr->bt_minor, fw_hdr->bt_revision, - fw_hdr->tic_name); - - parser->cur_pos += sizeof(struct iwmct_fw_hdr); - - LOG_TRACE(priv, FW_DOWNLOAD, "<--\n"); - return 0; -} - -static bool iwmct_checksum(struct iwmct_priv *priv) -{ - struct iwmct_parser *parser = &priv->parser; - __le32 *file = (__le32 *)parser->file; - int i, pad, steps; - u32 accum = 0; - u32 checksum; - u32 mask = 0xffffffff; - - pad = (parser->file_size - CHECKSUM_BYTES_NUM) % 4; - steps = (parser->file_size - CHECKSUM_BYTES_NUM) / 4; - - LOG_INFO(priv, FW_DOWNLOAD, "pad=%d steps=%d\n", pad, steps); - - for (i = 0; i < steps; i++) - accum += le32_to_cpu(file[i]); - - if (pad) { - mask <<= 8 * (4 - pad); - accum += le32_to_cpu(file[steps]) & mask; - } - - checksum = get_unaligned_le32((__le32 *)(parser->file + - parser->file_size - CHECKSUM_BYTES_NUM)); - - LOG_INFO(priv, FW_DOWNLOAD, - "compare checksum accum=0x%x to checksum=0x%x\n", - accum, checksum); - - return checksum == accum; -} - -static int iwmct_parse_next_section(struct iwmct_priv *priv, const u8 **p_sec, - size_t *sec_size, __le32 *sec_addr) -{ - struct iwmct_parser *parser = &priv->parser; - struct iwmct_dbg *dbg = &priv->dbg; - struct iwmct_fw_sec_hdr *sec_hdr; - - LOG_TRACE(priv, FW_DOWNLOAD, "-->\n"); - - while (parser->cur_pos + sizeof(struct iwmct_fw_sec_hdr) - <= parser->file_size) { - - sec_hdr = (struct iwmct_fw_sec_hdr *) - (parser->file + parser->cur_pos); - parser->cur_pos += sizeof(struct iwmct_fw_sec_hdr); - - LOG_INFO(priv, FW_DOWNLOAD, - "sec hdr: type=%s addr=0x%x size=%d\n", - sec_hdr->type, sec_hdr->target_addr, - sec_hdr->data_size); - - if (strcmp(sec_hdr->type, "ENT") == 0) - parser->entry_point = le32_to_cpu(sec_hdr->target_addr); - else if (strcmp(sec_hdr->type, "LBL") == 0) - strcpy(dbg->label_fw, parser->file + parser->cur_pos); - else if (((strcmp(sec_hdr->type, "TOP") == 0) && - (priv->barker & BARKER_DNLOAD_TOP_MSK)) || - ((strcmp(sec_hdr->type, "GPS") == 0) && - (priv->barker & BARKER_DNLOAD_GPS_MSK)) || - ((strcmp(sec_hdr->type, "BTH") == 0) && - (priv->barker & BARKER_DNLOAD_BT_MSK))) { - *sec_addr = sec_hdr->target_addr; - *sec_size = le32_to_cpu(sec_hdr->data_size); - *p_sec = parser->file + parser->cur_pos; - parser->cur_pos += le32_to_cpu(sec_hdr->data_size); - return 1; - } else if (strcmp(sec_hdr->type, "LOG") != 0) - LOG_WARNING(priv, FW_DOWNLOAD, - "skipping section type %s\n", - sec_hdr->type); - - parser->cur_pos += le32_to_cpu(sec_hdr->data_size); - LOG_INFO(priv, FW_DOWNLOAD, - "finished with section cur_pos=%zd\n", parser->cur_pos); - } - - LOG_TRACE(priv, INIT, "<--\n"); - return 0; -} - -static int iwmct_download_section(struct iwmct_priv *priv, const u8 *p_sec, - size_t sec_size, __le32 addr) -{ - struct iwmct_parser *parser = &priv->parser; - struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf; - const u8 *cur_block = p_sec; - size_t sent = 0; - int cnt = 0; - int ret = 0; - u32 cmd = 0; - - LOG_TRACE(priv, FW_DOWNLOAD, "-->\n"); - LOG_INFO(priv, FW_DOWNLOAD, "Download address 0x%x size 0x%zx\n", - addr, sec_size); - - while (sent < sec_size) { - int i; - u32 chksm = 0; - u32 reset = atomic_read(&priv->reset); - /* actual FW data */ - u32 data_size = min(parser->buf_size - sizeof(*hdr), - sec_size - sent); - /* Pad to block size */ - u32 trans_size = (data_size + sizeof(*hdr) + - IWMC_SDIO_BLK_SIZE - 1) & - ~(IWMC_SDIO_BLK_SIZE - 1); - ++cnt; - - /* in case of reset, interrupt FW DOWNLAOD */ - if (reset) { - LOG_INFO(priv, FW_DOWNLOAD, - "Reset detected. Abort FW download!!!"); - ret = -ECANCELED; - goto exit; - } - - memset(parser->buf, 0, parser->buf_size); - cmd |= IWMC_OPCODE_WRITE << CMD_HDR_OPCODE_POS; - cmd |= IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS; - cmd |= (priv->dbg.direct ? 1 : 0) << CMD_HDR_DIRECT_ACCESS_POS; - cmd |= (priv->dbg.checksum ? 1 : 0) << CMD_HDR_USE_CHECKSUM_POS; - hdr->data_size = cpu_to_le32(data_size); - hdr->target_addr = addr; - - /* checksum is allowed for sizes divisible by 4 */ - if (data_size & 0x3) - cmd &= ~CMD_HDR_USE_CHECKSUM_MSK; - - memcpy(hdr->data, cur_block, data_size); - - - if (cmd & CMD_HDR_USE_CHECKSUM_MSK) { - - chksm = data_size + le32_to_cpu(addr) + cmd; - for (i = 0; i < data_size >> 2; i++) - chksm += ((u32 *)cur_block)[i]; - - hdr->block_chksm = cpu_to_le32(chksm); - LOG_INFO(priv, FW_DOWNLOAD, "Checksum = 0x%X\n", - hdr->block_chksm); - } - - LOG_INFO(priv, FW_DOWNLOAD, "trans#%d, len=%d, sent=%zd, " - "sec_size=%zd, startAddress 0x%X\n", - cnt, trans_size, sent, sec_size, addr); - - if (priv->dbg.dump) - LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, trans_size); - - - hdr->cmd = cpu_to_le32(cmd); - /* send it down */ - /* TODO: add more proper sending and error checking */ - ret = iwmct_tx(priv, parser->buf, trans_size); - if (ret != 0) { - LOG_INFO(priv, FW_DOWNLOAD, - "iwmct_tx returned %d\n", ret); - goto exit; - } - - addr = cpu_to_le32(le32_to_cpu(addr) + data_size); - sent += data_size; - cur_block = p_sec + sent; - - if (priv->dbg.blocks && (cnt + 1) >= priv->dbg.blocks) { - LOG_INFO(priv, FW_DOWNLOAD, - "Block number limit is reached [%d]\n", - priv->dbg.blocks); - break; - } - } - - if (sent < sec_size) - ret = -EINVAL; -exit: - LOG_TRACE(priv, FW_DOWNLOAD, "<--\n"); - return ret; -} - -static int iwmct_kick_fw(struct iwmct_priv *priv, bool jump) -{ - struct iwmct_parser *parser = &priv->parser; - struct iwmct_fw_load_hdr *hdr = (struct iwmct_fw_load_hdr *)parser->buf; - int ret; - u32 cmd; - - LOG_TRACE(priv, FW_DOWNLOAD, "-->\n"); - - memset(parser->buf, 0, parser->buf_size); - cmd = IWMC_CMD_SIGNATURE << CMD_HDR_SIGNATURE_POS; - if (jump) { - cmd |= IWMC_OPCODE_JUMP << CMD_HDR_OPCODE_POS; - hdr->target_addr = cpu_to_le32(parser->entry_point); - LOG_INFO(priv, FW_DOWNLOAD, "jump address 0x%x\n", - parser->entry_point); - } else { - cmd |= IWMC_OPCODE_LAST_COMMAND << CMD_HDR_OPCODE_POS; - LOG_INFO(priv, FW_DOWNLOAD, "last command\n"); - } - - hdr->cmd = cpu_to_le32(cmd); - - LOG_HEXDUMP(FW_DOWNLOAD, parser->buf, sizeof(*hdr)); - /* send it down */ - /* TODO: add more proper sending and error checking */ - ret = iwmct_tx(priv, parser->buf, IWMC_SDIO_BLK_SIZE); - if (ret) - LOG_INFO(priv, FW_DOWNLOAD, "iwmct_tx returned %d", ret); - - LOG_TRACE(priv, FW_DOWNLOAD, "<--\n"); - return 0; -} - -int iwmct_fw_load(struct iwmct_priv *priv) -{ - const u8 *fw_name = FW_NAME(FW_API_VER); - const struct firmware *raw; - const u8 *pdata; - size_t len; - __le32 addr; - int ret; - - - LOG_INFO(priv, FW_DOWNLOAD, "barker download request 0x%x is:\n", - priv->barker); - LOG_INFO(priv, FW_DOWNLOAD, "******* Top FW %s requested ********\n", - (priv->barker & BARKER_DNLOAD_TOP_MSK) ? "was" : "not"); - LOG_INFO(priv, FW_DOWNLOAD, "******* GPS FW %s requested ********\n", - (priv->barker & BARKER_DNLOAD_GPS_MSK) ? "was" : "not"); - LOG_INFO(priv, FW_DOWNLOAD, "******* BT FW %s requested ********\n", - (priv->barker & BARKER_DNLOAD_BT_MSK) ? "was" : "not"); - - - /* get the firmware */ - ret = request_firmware(&raw, fw_name, &priv->func->dev); - if (ret < 0) { - LOG_ERROR(priv, FW_DOWNLOAD, "%s request_firmware failed %d\n", - fw_name, ret); - goto exit; - } - - if (raw->size < sizeof(struct iwmct_fw_sec_hdr)) { - LOG_ERROR(priv, FW_DOWNLOAD, "%s smaller then (%zd) (%zd)\n", - fw_name, sizeof(struct iwmct_fw_sec_hdr), raw->size); - goto exit; - } - - LOG_INFO(priv, FW_DOWNLOAD, "Read firmware '%s'\n", fw_name); - - /* clear parser struct */ - ret = iwmct_fw_parser_init(priv, raw->data, raw->size, priv->trans_len); - if (ret < 0) { - LOG_ERROR(priv, FW_DOWNLOAD, - "iwmct_parser_init failed: Reason %d\n", ret); - goto exit; - } - - if (!iwmct_checksum(priv)) { - LOG_ERROR(priv, FW_DOWNLOAD, "checksum error\n"); - ret = -EINVAL; - goto exit; - } - - /* download firmware to device */ - while (iwmct_parse_next_section(priv, &pdata, &len, &addr)) { - ret = iwmct_download_section(priv, pdata, len, addr); - if (ret) { - LOG_ERROR(priv, FW_DOWNLOAD, - "%s download section failed\n", fw_name); - goto exit; - } - } - - ret = iwmct_kick_fw(priv, !!(priv->barker & BARKER_DNLOAD_JUMP_MSK)); - -exit: - kfree(priv->parser.buf); - release_firmware(raw); - return ret; -} diff --git a/drivers/misc/iwmc3200top/fw-msg.h b/drivers/misc/iwmc3200top/fw-msg.h deleted file mode 100644 index 9e26b75bd48..00000000000 --- a/drivers/misc/iwmc3200top/fw-msg.h +++ /dev/null @@ -1,113 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/fw-msg.h - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#ifndef __FWMSG_H__ -#define __FWMSG_H__ - -#define COMM_TYPE_D2H 0xFF -#define COMM_TYPE_H2D 0xEE - -#define COMM_CATEGORY_OPERATIONAL 0x00 -#define COMM_CATEGORY_DEBUG 0x01 -#define COMM_CATEGORY_TESTABILITY 0x02 -#define COMM_CATEGORY_DIAGNOSTICS 0x03 - -#define OP_DBG_ZSTR_MSG cpu_to_le16(0x1A) - -#define FW_LOG_SRC_MAX 32 -#define FW_LOG_SRC_ALL 255 - -#define FW_STRING_TABLE_ADDR cpu_to_le32(0x0C000000) - -#define CMD_DBG_LOG_LEVEL cpu_to_le16(0x0001) -#define CMD_TST_DEV_RESET cpu_to_le16(0x0060) -#define CMD_TST_FUNC_RESET cpu_to_le16(0x0062) -#define CMD_TST_IFACE_RESET cpu_to_le16(0x0064) -#define CMD_TST_CPU_UTILIZATION cpu_to_le16(0x0065) -#define CMD_TST_TOP_DEEP_SLEEP cpu_to_le16(0x0080) -#define CMD_TST_WAKEUP cpu_to_le16(0x0081) -#define CMD_TST_FUNC_WAKEUP cpu_to_le16(0x0082) -#define CMD_TST_FUNC_DEEP_SLEEP_REQUEST cpu_to_le16(0x0083) -#define CMD_TST_GET_MEM_DUMP cpu_to_le16(0x0096) - -#define OP_OPR_ALIVE cpu_to_le16(0x0010) -#define OP_OPR_CMD_ACK cpu_to_le16(0x001F) -#define OP_OPR_CMD_NACK cpu_to_le16(0x0020) -#define OP_TST_MEM_DUMP cpu_to_le16(0x0043) - -#define CMD_FLAG_PADDING_256 0x80 - -#define FW_HCMD_BLOCK_SIZE 256 - -struct msg_hdr { - u8 type; - u8 category; - __le16 opcode; - u8 seqnum; - u8 flags; - __le16 length; -} __attribute__((__packed__)); - -struct log_hdr { - __le32 timestamp; - u8 severity; - u8 logsource; - __le16 reserved; -} __attribute__((__packed__)); - -struct mdump_hdr { - u8 dmpid; - u8 frag; - __le16 size; - __le32 addr; -} __attribute__((__packed__)); - -struct top_msg { - struct msg_hdr hdr; - union { - /* D2H messages */ - struct { - struct log_hdr log_hdr; - u8 data[1]; - } __attribute__((__packed__)) log; - - struct { - struct log_hdr log_hdr; - struct mdump_hdr md_hdr; - u8 data[1]; - } __attribute__((__packed__)) mdump; - - /* H2D messages */ - struct { - u8 logsource; - u8 sevmask; - } __attribute__((__packed__)) logdefs[FW_LOG_SRC_MAX]; - struct mdump_hdr mdump_req; - } u; -} __attribute__((__packed__)); - - -#endif /* __FWMSG_H__ */ diff --git a/drivers/misc/iwmc3200top/iwmc3200top.h b/drivers/misc/iwmc3200top/iwmc3200top.h deleted file mode 100644 index 620973ed8bf..00000000000 --- a/drivers/misc/iwmc3200top/iwmc3200top.h +++ /dev/null @@ -1,205 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/iwmc3200top.h - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#ifndef __IWMC3200TOP_H__ -#define __IWMC3200TOP_H__ - -#include <linux/workqueue.h> - -#define DRV_NAME "iwmc3200top" -#define FW_API_VER 1 -#define _FW_NAME(api) DRV_NAME "." #api ".fw" -#define FW_NAME(api) _FW_NAME(api) - -#define IWMC_SDIO_BLK_SIZE 256 -#define IWMC_DEFAULT_TR_BLK 64 -#define IWMC_SDIO_DATA_ADDR 0x0 -#define IWMC_SDIO_INTR_ENABLE_ADDR 0x14 -#define IWMC_SDIO_INTR_STATUS_ADDR 0x13 -#define IWMC_SDIO_INTR_CLEAR_ADDR 0x13 -#define IWMC_SDIO_INTR_GET_SIZE_ADDR 0x2C - -#define COMM_HUB_HEADER_LENGTH 16 -#define LOGGER_HEADER_LENGTH 10 - - -#define BARKER_DNLOAD_BT_POS 0 -#define BARKER_DNLOAD_BT_MSK BIT(BARKER_DNLOAD_BT_POS) -#define BARKER_DNLOAD_GPS_POS 1 -#define BARKER_DNLOAD_GPS_MSK BIT(BARKER_DNLOAD_GPS_POS) -#define BARKER_DNLOAD_TOP_POS 2 -#define BARKER_DNLOAD_TOP_MSK BIT(BARKER_DNLOAD_TOP_POS) -#define BARKER_DNLOAD_RESERVED1_POS 3 -#define BARKER_DNLOAD_RESERVED1_MSK BIT(BARKER_DNLOAD_RESERVED1_POS) -#define BARKER_DNLOAD_JUMP_POS 4 -#define BARKER_DNLOAD_JUMP_MSK BIT(BARKER_DNLOAD_JUMP_POS) -#define BARKER_DNLOAD_SYNC_POS 5 -#define BARKER_DNLOAD_SYNC_MSK BIT(BARKER_DNLOAD_SYNC_POS) -#define BARKER_DNLOAD_RESERVED2_POS 6 -#define BARKER_DNLOAD_RESERVED2_MSK (0x3 << BARKER_DNLOAD_RESERVED2_POS) -#define BARKER_DNLOAD_BARKER_POS 8 -#define BARKER_DNLOAD_BARKER_MSK (0xffffff << BARKER_DNLOAD_BARKER_POS) - -#define IWMC_BARKER_REBOOT (0xdeadbe << BARKER_DNLOAD_BARKER_POS) -/* whole field barker */ -#define IWMC_BARKER_ACK 0xfeedbabe - -#define IWMC_CMD_SIGNATURE 0xcbbc - -#define CMD_HDR_OPCODE_POS 0 -#define CMD_HDR_OPCODE_MSK_MSK (0xf << CMD_HDR_OPCODE_MSK_POS) -#define CMD_HDR_RESPONSE_CODE_POS 4 -#define CMD_HDR_RESPONSE_CODE_MSK (0xf << CMD_HDR_RESPONSE_CODE_POS) -#define CMD_HDR_USE_CHECKSUM_POS 8 -#define CMD_HDR_USE_CHECKSUM_MSK BIT(CMD_HDR_USE_CHECKSUM_POS) -#define CMD_HDR_RESPONSE_REQUIRED_POS 9 -#define CMD_HDR_RESPONSE_REQUIRED_MSK BIT(CMD_HDR_RESPONSE_REQUIRED_POS) -#define CMD_HDR_DIRECT_ACCESS_POS 10 -#define CMD_HDR_DIRECT_ACCESS_MSK BIT(CMD_HDR_DIRECT_ACCESS_POS) -#define CMD_HDR_RESERVED_POS 11 -#define CMD_HDR_RESERVED_MSK BIT(0x1f << CMD_HDR_RESERVED_POS) -#define CMD_HDR_SIGNATURE_POS 16 -#define CMD_HDR_SIGNATURE_MSK BIT(0xffff << CMD_HDR_SIGNATURE_POS) - -enum { - IWMC_OPCODE_PING = 0, - IWMC_OPCODE_READ = 1, - IWMC_OPCODE_WRITE = 2, - IWMC_OPCODE_JUMP = 3, - IWMC_OPCODE_REBOOT = 4, - IWMC_OPCODE_PERSISTENT_WRITE = 5, - IWMC_OPCODE_PERSISTENT_READ = 6, - IWMC_OPCODE_READ_MODIFY_WRITE = 7, - IWMC_OPCODE_LAST_COMMAND = 15 -}; - -struct iwmct_fw_load_hdr { - __le32 cmd; - __le32 target_addr; - __le32 data_size; - __le32 block_chksm; - u8 data[0]; -}; - -/** - * struct iwmct_fw_hdr - * holds all sw components versions - */ -struct iwmct_fw_hdr { - u8 top_major; - u8 top_minor; - u8 top_revision; - u8 gps_major; - u8 gps_minor; - u8 gps_revision; - u8 bt_major; - u8 bt_minor; - u8 bt_revision; - u8 tic_name[31]; -}; - -/** - * struct iwmct_fw_sec_hdr - * @type: function type - * @data_size: section's data size - * @target_addr: download address - */ -struct iwmct_fw_sec_hdr { - u8 type[4]; - __le32 data_size; - __le32 target_addr; -}; - -/** - * struct iwmct_parser - * @file: fw image - * @file_size: fw size - * @cur_pos: position in file - * @buf: temp buf for download - * @buf_size: size of buf - * @entry_point: address to jump in fw kick-off - */ -struct iwmct_parser { - const u8 *file; - size_t file_size; - size_t cur_pos; - u8 *buf; - size_t buf_size; - u32 entry_point; - struct iwmct_fw_hdr versions; -}; - - -struct iwmct_work_struct { - struct list_head list; - ssize_t iosize; -}; - -struct iwmct_dbg { - int blocks; - bool dump; - bool jump; - bool direct; - bool checksum; - bool fw_download; - int block_size; - int download_trans_blks; - - char label_fw[256]; -}; - -struct iwmct_debugfs; - -struct iwmct_priv { - struct sdio_func *func; - struct iwmct_debugfs *dbgfs; - struct iwmct_parser parser; - atomic_t reset; - atomic_t dev_sync; - u32 trans_len; - u32 barker; - struct iwmct_dbg dbg; - - /* drivers work items */ - struct work_struct bus_rescan_worker; - struct work_struct isr_worker; - - /* drivers wait queue */ - wait_queue_head_t wait_q; - - /* rx request list */ - struct list_head read_req_list; -}; - -extern int iwmct_tx(struct iwmct_priv *priv, void *src, int count); -extern int iwmct_fw_load(struct iwmct_priv *priv); - -extern void iwmct_dbg_init_params(struct iwmct_priv *drv); -extern void iwmct_dbg_init_drv_attrs(struct device_driver *drv); -extern void iwmct_dbg_remove_drv_attrs(struct device_driver *drv); -extern int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len); - -#endif /* __IWMC3200TOP_H__ */ diff --git a/drivers/misc/iwmc3200top/log.c b/drivers/misc/iwmc3200top/log.c deleted file mode 100644 index a36a55a49ca..00000000000 --- a/drivers/misc/iwmc3200top/log.c +++ /dev/null @@ -1,348 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/log.c - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#include <linux/kernel.h> -#include <linux/mmc/sdio_func.h> -#include <linux/slab.h> -#include <linux/ctype.h> -#include "fw-msg.h" -#include "iwmc3200top.h" -#include "log.h" - -/* Maximal hexadecimal string size of the FW memdump message */ -#define LOG_MSG_SIZE_MAX 12400 - -/* iwmct_logdefs is a global used by log macros */ -u8 iwmct_logdefs[LOG_SRC_MAX]; -static u8 iwmct_fw_logdefs[FW_LOG_SRC_MAX]; - - -static int _log_set_log_filter(u8 *logdefs, int size, u8 src, u8 logmask) -{ - int i; - - if (src < size) - logdefs[src] = logmask; - else if (src == LOG_SRC_ALL) - for (i = 0; i < size; i++) - logdefs[i] = logmask; - else - return -1; - - return 0; -} - - -int iwmct_log_set_filter(u8 src, u8 logmask) -{ - return _log_set_log_filter(iwmct_logdefs, LOG_SRC_MAX, src, logmask); -} - - -int iwmct_log_set_fw_filter(u8 src, u8 logmask) -{ - return _log_set_log_filter(iwmct_fw_logdefs, - FW_LOG_SRC_MAX, src, logmask); -} - - -static int log_msg_format_hex(char *str, int slen, u8 *ibuf, - int ilen, char *pref) -{ - int pos = 0; - int i; - int len; - - for (pos = 0, i = 0; pos < slen - 2 && pref[i] != '\0'; i++, pos++) - str[pos] = pref[i]; - - for (i = 0; pos < slen - 2 && i < ilen; pos += len, i++) - len = snprintf(&str[pos], slen - pos - 1, " %2.2X", ibuf[i]); - - if (i < ilen) - return -1; - - return 0; -} - -/* NOTE: This function is not thread safe. - Currently it's called only from sdio rx worker - no race there -*/ -void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len) -{ - struct top_msg *msg; - static char logbuf[LOG_MSG_SIZE_MAX]; - - msg = (struct top_msg *)buf; - - if (len < sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr)) { - LOG_ERROR(priv, FW_MSG, "Log message from TOP " - "is too short %d (expected %zd)\n", - len, sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr)); - return; - } - - if (!(iwmct_fw_logdefs[msg->u.log.log_hdr.logsource] & - BIT(msg->u.log.log_hdr.severity)) || - !(iwmct_logdefs[LOG_SRC_FW_MSG] & BIT(msg->u.log.log_hdr.severity))) - return; - - switch (msg->hdr.category) { - case COMM_CATEGORY_TESTABILITY: - if (!(iwmct_logdefs[LOG_SRC_TST] & - BIT(msg->u.log.log_hdr.severity))) - return; - if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf, - le16_to_cpu(msg->hdr.length) + - sizeof(msg->hdr), "<TST>")) - LOG_WARNING(priv, TST, - "TOP TST message is too long, truncating..."); - LOG_WARNING(priv, TST, "%s\n", logbuf); - break; - case COMM_CATEGORY_DEBUG: - if (msg->hdr.opcode == OP_DBG_ZSTR_MSG) - LOG_INFO(priv, FW_MSG, "%s %s", "<DBG>", - ((u8 *)msg) + sizeof(msg->hdr) - + sizeof(msg->u.log.log_hdr)); - else { - if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf, - le16_to_cpu(msg->hdr.length) - + sizeof(msg->hdr), - "<DBG>")) - LOG_WARNING(priv, FW_MSG, - "TOP DBG message is too long," - "truncating..."); - LOG_WARNING(priv, FW_MSG, "%s\n", logbuf); - } - break; - default: - break; - } -} - -static int _log_get_filter_str(u8 *logdefs, int logdefsz, char *buf, int size) -{ - int i, pos, len; - for (i = 0, pos = 0; (pos < size-1) && (i < logdefsz); i++) { - len = snprintf(&buf[pos], size - pos - 1, "0x%02X%02X,", - i, logdefs[i]); - pos += len; - } - buf[pos-1] = '\n'; - buf[pos] = '\0'; - - if (i < logdefsz) - return -1; - return 0; -} - -int log_get_filter_str(char *buf, int size) -{ - return _log_get_filter_str(iwmct_logdefs, LOG_SRC_MAX, buf, size); -} - -int log_get_fw_filter_str(char *buf, int size) -{ - return _log_get_filter_str(iwmct_fw_logdefs, FW_LOG_SRC_MAX, buf, size); -} - -#define HEXADECIMAL_RADIX 16 -#define LOG_SRC_FORMAT 7 /* log level is in format of "0xXXXX," */ - -ssize_t show_iwmct_log_level(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwmct_priv *priv = dev_get_drvdata(d); - char *str_buf; - int buf_size; - ssize_t ret; - - buf_size = (LOG_SRC_FORMAT * LOG_SRC_MAX) + 1; - str_buf = kzalloc(buf_size, GFP_KERNEL); - if (!str_buf) { - LOG_ERROR(priv, DEBUGFS, - "failed to allocate %d bytes\n", buf_size); - ret = -ENOMEM; - goto exit; - } - - if (log_get_filter_str(str_buf, buf_size) < 0) { - ret = -EINVAL; - goto exit; - } - - ret = sprintf(buf, "%s", str_buf); - -exit: - kfree(str_buf); - return ret; -} - -ssize_t store_iwmct_log_level(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwmct_priv *priv = dev_get_drvdata(d); - char *token, *str_buf = NULL; - long val; - ssize_t ret = count; - u8 src, mask; - - if (!count) - goto exit; - - str_buf = kzalloc(count, GFP_KERNEL); - if (!str_buf) { - LOG_ERROR(priv, DEBUGFS, - "failed to allocate %zd bytes\n", count); - ret = -ENOMEM; - goto exit; - } - - memcpy(str_buf, buf, count); - - while ((token = strsep(&str_buf, ",")) != NULL) { - while (isspace(*token)) - ++token; - if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) { - LOG_ERROR(priv, DEBUGFS, - "failed to convert string to long %s\n", - token); - ret = -EINVAL; - goto exit; - } - - mask = val & 0xFF; - src = (val & 0XFF00) >> 8; - iwmct_log_set_filter(src, mask); - } - -exit: - kfree(str_buf); - return ret; -} - -ssize_t show_iwmct_log_level_fw(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwmct_priv *priv = dev_get_drvdata(d); - char *str_buf; - int buf_size; - ssize_t ret; - - buf_size = (LOG_SRC_FORMAT * FW_LOG_SRC_MAX) + 2; - - str_buf = kzalloc(buf_size, GFP_KERNEL); - if (!str_buf) { - LOG_ERROR(priv, DEBUGFS, - "failed to allocate %d bytes\n", buf_size); - ret = -ENOMEM; - goto exit; - } - - if (log_get_fw_filter_str(str_buf, buf_size) < 0) { - ret = -EINVAL; - goto exit; - } - - ret = sprintf(buf, "%s", str_buf); - -exit: - kfree(str_buf); - return ret; -} - -ssize_t store_iwmct_log_level_fw(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwmct_priv *priv = dev_get_drvdata(d); - struct top_msg cmd; - char *token, *str_buf = NULL; - ssize_t ret = count; - u16 cmdlen = 0; - int i; - long val; - u8 src, mask; - - if (!count) - goto exit; - - str_buf = kzalloc(count, GFP_KERNEL); - if (!str_buf) { - LOG_ERROR(priv, DEBUGFS, - "failed to allocate %zd bytes\n", count); - ret = -ENOMEM; - goto exit; - } - - memcpy(str_buf, buf, count); - - cmd.hdr.type = COMM_TYPE_H2D; - cmd.hdr.category = COMM_CATEGORY_DEBUG; - cmd.hdr.opcode = CMD_DBG_LOG_LEVEL; - - for (i = 0; ((token = strsep(&str_buf, ",")) != NULL) && - (i < FW_LOG_SRC_MAX); i++) { - - while (isspace(*token)) - ++token; - - if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) { - LOG_ERROR(priv, DEBUGFS, - "failed to convert string to long %s\n", - token); - ret = -EINVAL; - goto exit; - } - - mask = val & 0xFF; /* LSB */ - src = (val & 0XFF00) >> 8; /* 2nd least significant byte. */ - iwmct_log_set_fw_filter(src, mask); - - cmd.u.logdefs[i].logsource = src; - cmd.u.logdefs[i].sevmask = mask; - } - - cmd.hdr.length = cpu_to_le16(i * sizeof(cmd.u.logdefs[0])); - cmdlen = (i * sizeof(cmd.u.logdefs[0]) + sizeof(cmd.hdr)); - - ret = iwmct_send_hcmd(priv, (u8 *)&cmd, cmdlen); - if (ret) { - LOG_ERROR(priv, DEBUGFS, - "Failed to send %d bytes of fwcmd, ret=%zd\n", - cmdlen, ret); - goto exit; - } else - LOG_INFO(priv, DEBUGFS, "fwcmd sent (%d bytes)\n", cmdlen); - - ret = count; - -exit: - kfree(str_buf); - return ret; -} - diff --git a/drivers/misc/iwmc3200top/log.h b/drivers/misc/iwmc3200top/log.h deleted file mode 100644 index 4434bb16cea..00000000000 --- a/drivers/misc/iwmc3200top/log.h +++ /dev/null @@ -1,171 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/log.h - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#ifndef __LOG_H__ -#define __LOG_H__ - - -/* log severity: - * The log levels here match FW log levels - * so values need to stay as is */ -#define LOG_SEV_CRITICAL 0 -#define LOG_SEV_ERROR 1 -#define LOG_SEV_WARNING 2 -#define LOG_SEV_INFO 3 -#define LOG_SEV_INFOEX 4 - -/* Log levels not defined for FW */ -#define LOG_SEV_TRACE 5 -#define LOG_SEV_DUMP 6 - -#define LOG_SEV_FW_FILTER_ALL \ - (BIT(LOG_SEV_CRITICAL) | \ - BIT(LOG_SEV_ERROR) | \ - BIT(LOG_SEV_WARNING) | \ - BIT(LOG_SEV_INFO) | \ - BIT(LOG_SEV_INFOEX)) - -#define LOG_SEV_FILTER_ALL \ - (BIT(LOG_SEV_CRITICAL) | \ - BIT(LOG_SEV_ERROR) | \ - BIT(LOG_SEV_WARNING) | \ - BIT(LOG_SEV_INFO) | \ - BIT(LOG_SEV_INFOEX) | \ - BIT(LOG_SEV_TRACE) | \ - BIT(LOG_SEV_DUMP)) - -/* log source */ -#define LOG_SRC_INIT 0 -#define LOG_SRC_DEBUGFS 1 -#define LOG_SRC_FW_DOWNLOAD 2 -#define LOG_SRC_FW_MSG 3 -#define LOG_SRC_TST 4 -#define LOG_SRC_IRQ 5 - -#define LOG_SRC_MAX 6 -#define LOG_SRC_ALL 0xFF - -/** - * Default intitialization runtime log level - */ -#ifndef LOG_SEV_FILTER_RUNTIME -#define LOG_SEV_FILTER_RUNTIME \ - (BIT(LOG_SEV_CRITICAL) | \ - BIT(LOG_SEV_ERROR) | \ - BIT(LOG_SEV_WARNING)) -#endif - -#ifndef FW_LOG_SEV_FILTER_RUNTIME -#define FW_LOG_SEV_FILTER_RUNTIME LOG_SEV_FILTER_ALL -#endif - -#ifdef CONFIG_IWMC3200TOP_DEBUG -/** - * Log macros - */ - -#define priv2dev(priv) (&(priv->func)->dev) - -#define LOG_CRITICAL(priv, src, fmt, args...) \ -do { \ - if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_CRITICAL)) \ - dev_crit(priv2dev(priv), "%s %d: " fmt, \ - __func__, __LINE__, ##args); \ -} while (0) - -#define LOG_ERROR(priv, src, fmt, args...) \ -do { \ - if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_ERROR)) \ - dev_err(priv2dev(priv), "%s %d: " fmt, \ - __func__, __LINE__, ##args); \ -} while (0) - -#define LOG_WARNING(priv, src, fmt, args...) \ -do { \ - if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_WARNING)) \ - dev_warn(priv2dev(priv), "%s %d: " fmt, \ - __func__, __LINE__, ##args); \ -} while (0) - -#define LOG_INFO(priv, src, fmt, args...) \ -do { \ - if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_INFO)) \ - dev_info(priv2dev(priv), "%s %d: " fmt, \ - __func__, __LINE__, ##args); \ -} while (0) - -#define LOG_TRACE(priv, src, fmt, args...) \ -do { \ - if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_TRACE)) \ - dev_dbg(priv2dev(priv), "%s %d: " fmt, \ - __func__, __LINE__, ##args); \ -} while (0) - -#define LOG_HEXDUMP(src, ptr, len) \ -do { \ - if (iwmct_logdefs[LOG_SRC_ ## src] & BIT(LOG_SEV_DUMP)) \ - print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_NONE, \ - 16, 1, ptr, len, false); \ -} while (0) - -void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len); - -extern u8 iwmct_logdefs[]; - -int iwmct_log_set_filter(u8 src, u8 logmask); -int iwmct_log_set_fw_filter(u8 src, u8 logmask); - -ssize_t show_iwmct_log_level(struct device *d, - struct device_attribute *attr, char *buf); -ssize_t store_iwmct_log_level(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count); -ssize_t show_iwmct_log_level_fw(struct device *d, - struct device_attribute *attr, char *buf); -ssize_t store_iwmct_log_level_fw(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count); - -#else - -#define LOG_CRITICAL(priv, src, fmt, args...) -#define LOG_ERROR(priv, src, fmt, args...) -#define LOG_WARNING(priv, src, fmt, args...) -#define LOG_INFO(priv, src, fmt, args...) -#define LOG_TRACE(priv, src, fmt, args...) -#define LOG_HEXDUMP(src, ptr, len) - -static inline void iwmct_log_top_message(struct iwmct_priv *priv, - u8 *buf, int len) {} -static inline int iwmct_log_set_filter(u8 src, u8 logmask) { return 0; } -static inline int iwmct_log_set_fw_filter(u8 src, u8 logmask) { return 0; } - -#endif /* CONFIG_IWMC3200TOP_DEBUG */ - -int log_get_filter_str(char *buf, int size); -int log_get_fw_filter_str(char *buf, int size); - -#endif /* __LOG_H__ */ diff --git a/drivers/misc/iwmc3200top/main.c b/drivers/misc/iwmc3200top/main.c deleted file mode 100644 index 701eb600b12..00000000000 --- a/drivers/misc/iwmc3200top/main.c +++ /dev/null @@ -1,662 +0,0 @@ -/* - * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver - * drivers/misc/iwmc3200top/main.c - * - * Copyright (C) 2009 Intel Corporation. All rights reserved. - * - * 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. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com> - * - - * - */ - -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/debugfs.h> -#include <linux/mmc/sdio_ids.h> -#include <linux/mmc/sdio_func.h> -#include <linux/mmc/sdio.h> - -#include "iwmc3200top.h" -#include "log.h" -#include "fw-msg.h" -#include "debugfs.h" - - -#define DRIVER_DESCRIPTION "Intel(R) IWMC 3200 Top Driver" -#define DRIVER_COPYRIGHT "Copyright (c) 2008 Intel Corporation." - -#define DRIVER_VERSION "0.1.62" - -MODULE_DESCRIPTION(DRIVER_DESCRIPTION); -MODULE_VERSION(DRIVER_VERSION); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR(DRIVER_COPYRIGHT); -MODULE_FIRMWARE(FW_NAME(FW_API_VER)); - - -static inline int __iwmct_tx(struct iwmct_priv *priv, void *src, int count) -{ - return sdio_memcpy_toio(priv->func, IWMC_SDIO_DATA_ADDR, src, count); - -} -int iwmct_tx(struct iwmct_priv *priv, void *src, int count) -{ - int ret; - sdio_claim_host(priv->func); - ret = __iwmct_tx(priv, src, count); - sdio_release_host(priv->func); - return ret; -} -/* - * This workers main task is to wait for OP_OPR_ALIVE - * from TOP FW until ALIVE_MSG_TIMOUT timeout is elapsed. - * When OP_OPR_ALIVE received it will issue - * a call to "bus_rescan_devices". - */ -static void iwmct_rescan_worker(struct work_struct *ws) -{ - struct iwmct_priv *priv; - int ret; - - priv = container_of(ws, struct iwmct_priv, bus_rescan_worker); - - LOG_INFO(priv, FW_MSG, "Calling bus_rescan\n"); - - ret = bus_rescan_devices(priv->func->dev.bus); - if (ret < 0) - LOG_INFO(priv, INIT, "bus_rescan_devices FAILED!!!\n"); -} - -static void op_top_message(struct iwmct_priv *priv, struct top_msg *msg) -{ - switch (msg->hdr.opcode) { - case OP_OPR_ALIVE: - LOG_INFO(priv, FW_MSG, "Got ALIVE from device, wake rescan\n"); - schedule_work(&priv->bus_rescan_worker); - break; - default: - LOG_INFO(priv, FW_MSG, "Received msg opcode 0x%X\n", - msg->hdr.opcode); - break; - } -} - - -static void handle_top_message(struct iwmct_priv *priv, u8 *buf, int len) -{ - struct top_msg *msg; - - msg = (struct top_msg *)buf; - - if (msg->hdr.type != COMM_TYPE_D2H) { - LOG_ERROR(priv, FW_MSG, - "Message from TOP with invalid message type 0x%X\n", - msg->hdr.type); - return; - } - - if (len < sizeof(msg->hdr)) { - LOG_ERROR(priv, FW_MSG, - "Message from TOP is too short for message header " - "received %d bytes, expected at least %zd bytes\n", - len, sizeof(msg->hdr)); - return; - } - - if (len < le16_to_cpu(msg->hdr.length) + sizeof(msg->hdr)) { - LOG_ERROR(priv, FW_MSG, - "Message length (%d bytes) is shorter than " - "in header (%d bytes)\n", - len, le16_to_cpu(msg->hdr.length)); - return; - } - - switch (msg->hdr.category) { - case COMM_CATEGORY_OPERATIONAL: - op_top_message(priv, (struct top_msg *)buf); - break; - - case COMM_CATEGORY_DEBUG: - case COMM_CATEGORY_TESTABILITY: - case COMM_CATEGORY_DIAGNOSTICS: - iwmct_log_top_message(priv, buf, len); - break; - - default: - LOG_ERROR(priv, FW_MSG, - "Message from TOP with unknown category 0x%X\n", - msg->hdr.category); - break; - } -} - -int iwmct_send_hcmd(struct iwmct_priv *priv, u8 *cmd, u16 len) -{ - int ret; - u8 *buf; - - LOG_TRACE(priv, FW_MSG, "Sending hcmd:\n"); - - /* add padding to 256 for IWMC */ - ((struct top_msg *)cmd)->hdr.flags |= CMD_FLAG_PADDING_256; - - LOG_HEXDUMP(FW_MSG, cmd, len); - - if (len > FW_HCMD_BLOCK_SIZE) { - LOG_ERROR(priv, FW_MSG, "size %d exceeded hcmd max size %d\n", - len, FW_HCMD_BLOCK_SIZE); - return -1; - } - - buf = kzalloc(FW_HCMD_BLOCK_SIZE, GFP_KERNEL); - if (!buf) { - LOG_ERROR(priv, FW_MSG, "kzalloc error, buf size %d\n", - FW_HCMD_BLOCK_SIZE); - return -1; - } - - memcpy(buf, cmd, len); - ret = iwmct_tx(priv, buf, FW_HCMD_BLOCK_SIZE); - - kfree(buf); - return ret; -} - - -static void iwmct_irq_read_worker(struct work_struct *ws) -{ - struct iwmct_priv *priv; - struct iwmct_work_struct *read_req; - __le32 *buf = NULL; - int ret; - int iosize; - u32 barker; - bool is_barker; - - priv = container_of(ws, struct iwmct_priv, isr_worker); - - LOG_TRACE(priv, IRQ, "enter iwmct_irq_read_worker %p\n", ws); - - /* --------------------- Handshake with device -------------------- */ - sdio_claim_host(priv->func); - - /* all list manipulations have to be protected by - * sdio_claim_host/sdio_release_host */ - if (list_empty(&priv->read_req_list)) { - LOG_ERROR(priv, IRQ, "read_req_list empty in read worker\n"); - goto exit_release; - } - - read_req = list_entry(priv->read_req_list.next, - struct iwmct_work_struct, list); - - list_del(&read_req->list); - iosize = read_req->iosize; - kfree(read_req); - - buf = kzalloc(iosize, GFP_KERNEL); - if (!buf) { - LOG_ERROR(priv, IRQ, "kzalloc error, buf size %d\n", iosize); - goto exit_release; - } - - LOG_INFO(priv, IRQ, "iosize=%d, buf=%p, func=%d\n", - iosize, buf, priv->func->num); - - /* read from device */ - ret = sdio_memcpy_fromio(priv->func, buf, IWMC_SDIO_DATA_ADDR, iosize); - if (ret) { - LOG_ERROR(priv, IRQ, "error %d reading buffer\n", ret); - goto exit_release; - } - - LOG_HEXDUMP(IRQ, (u8 *)buf, iosize); - - barker = le32_to_cpu(buf[0]); - - /* Verify whether it's a barker and if not - treat as regular Rx */ - if (barker == IWMC_BARKER_ACK || - (barker & BARKER_DNLOAD_BARKER_MSK) == IWMC_BARKER_REBOOT) { - - /* Valid Barker is equal on first 4 dwords */ - is_barker = (buf[1] == buf[0]) && - (buf[2] == buf[0]) && - (buf[3] == buf[0]); - - if (!is_barker) { - LOG_WARNING(priv, IRQ, - "Potentially inconsistent barker " - "%08X_%08X_%08X_%08X\n", - le32_to_cpu(buf[0]), le32_to_cpu(buf[1]), - le32_to_cpu(buf[2]), le32_to_cpu(buf[3])); - } - } else { - is_barker = false; - } - - /* Handle Top CommHub message */ - if (!is_barker) { - sdio_release_host(priv->func); - handle_top_message(priv, (u8 *)buf, iosize); - goto exit; - } else if (barker == IWMC_BARKER_ACK) { /* Handle barkers */ - if (atomic_read(&priv->dev_sync) == 0) { - LOG_ERROR(priv, IRQ, - "ACK barker arrived out-of-sync\n"); - goto exit_release; - } - - /* Continuing to FW download (after Sync is completed)*/ - atomic_set(&priv->dev_sync, 0); - LOG_INFO(priv, IRQ, "ACK barker arrived " - "- starting FW download\n"); - } else { /* REBOOT barker */ - LOG_INFO(priv, IRQ, "Received reboot barker: %x\n", barker); - priv->barker = barker; - - if (barker & BARKER_DNLOAD_SYNC_MSK) { - /* Send the same barker back */ - ret = __iwmct_tx(priv, buf, iosize); - if (ret) { - LOG_ERROR(priv, IRQ, - "error %d echoing barker\n", ret); - goto exit_release; - } - LOG_INFO(priv, IRQ, "Echoing barker to device\n"); - atomic_set(&priv->dev_sync, 1); - goto exit_release; - } - - /* Continuing to FW download (without Sync) */ - LOG_INFO(priv, IRQ, "No sync requested " - "- starting FW download\n"); - } - - sdio_release_host(priv->func); - - if (priv->dbg.fw_download) - iwmct_fw_load(priv); - else - LOG_ERROR(priv, IRQ, "FW download not allowed\n"); - - goto exit; - -exit_release: - sdio_release_host(priv->func); -exit: - kfree(buf); - LOG_TRACE(priv, IRQ, "exit iwmct_irq_read_worker\n"); -} - -static void iwmct_irq(struct sdio_func *func) -{ - struct iwmct_priv *priv; - int val, ret; - int iosize; - int addr = IWMC_SDIO_INTR_GET_SIZE_ADDR; - struct iwmct_work_struct *read_req; - - priv = sdio_get_drvdata(func); - - LOG_TRACE(priv, IRQ, "enter iwmct_irq\n"); - - /* read the function's status register */ - val = sdio_readb(func, IWMC_SDIO_INTR_STATUS_ADDR, &ret); - - LOG_TRACE(priv, IRQ, "iir value = %d, ret=%d\n", val, ret); - - if (!val) { - LOG_ERROR(priv, IRQ, "iir = 0, exiting ISR\n"); - goto exit_clear_intr; - } - - - /* - * read 2 bytes of the transaction size - * IMPORTANT: sdio transaction size has to be read before clearing - * sdio interrupt!!! - */ - val = sdio_readb(priv->func, addr++, &ret); - iosize = val; - val = sdio_readb(priv->func, addr++, &ret); - iosize += val << 8; - - LOG_INFO(priv, IRQ, "READ size %d\n", iosize); - - if (iosize == 0) { - LOG_ERROR(priv, IRQ, "READ size %d, exiting ISR\n", iosize); - goto exit_clear_intr; - } - - /* allocate a work structure to pass iosize to the worker */ - read_req = kzalloc(sizeof(struct iwmct_work_struct), GFP_KERNEL); - if (!read_req) { - LOG_ERROR(priv, IRQ, "failed to allocate read_req, exit ISR\n"); - goto exit_clear_intr; - } - - INIT_LIST_HEAD(&read_req->list); - read_req->iosize = iosize; - - list_add_tail(&priv->read_req_list, &read_req->list); - - /* clear the function's interrupt request bit (write 1 to clear) */ - sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret); - - schedule_work(&priv->isr_worker); - - LOG_TRACE(priv, IRQ, "exit iwmct_irq\n"); - - return; - -exit_clear_intr: - /* clear the function's interrupt request bit (write 1 to clear) */ - sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret); -} - - -static int blocks; -module_param(blocks, int, 0604); -MODULE_PARM_DESC(blocks, "max_blocks_to_send"); - -static bool dump; -module_param(dump, bool, 0604); -MODULE_PARM_DESC(dump, "dump_hex_content"); - -static bool jump = 1; -module_param(jump, bool, 0604); - -static bool direct = 1; -module_param(direct, bool, 0604); - -static bool checksum = 1; -module_param(checksum, bool, 0604); - -static bool fw_download = 1; -module_param(fw_download, bool, 0604); - -static int block_size = IWMC_SDIO_BLK_SIZE; -module_param(block_size, int, 0404); - -static int download_trans_blks = IWMC_DEFAULT_TR_BLK; -module_param(download_trans_blks, int, 0604); - -static bool rubbish_barker; -module_param(rubbish_barker, bool, 0604); - -#ifdef CONFIG_IWMC3200TOP_DEBUG -static int log_level[LOG_SRC_MAX]; -static unsigned int log_level_argc; -module_param_array(log_level, int, &log_level_argc, 0604); -MODULE_PARM_DESC(log_level, "log_level"); - -static int log_level_fw[FW_LOG_SRC_MAX]; -static unsigned int log_level_fw_argc; -module_param_array(log_level_fw, int, &log_level_fw_argc, 0604); -MODULE_PARM_DESC(log_level_fw, "log_level_fw"); -#endif - -void iwmct_dbg_init_params(struct iwmct_priv *priv) -{ -#ifdef CONFIG_IWMC3200TOP_DEBUG - int i; - - for (i = 0; i < log_level_argc; i++) { - dev_notice(&priv->func->dev, "log_level[%d]=0x%X\n", - i, log_level[i]); - iwmct_log_set_filter((log_level[i] >> 8) & 0xFF, - log_level[i] & 0xFF); - } - for (i = 0; i < log_level_fw_argc; i++) { - dev_notice(&priv->func->dev, "log_level_fw[%d]=0x%X\n", - i, log_level_fw[i]); - iwmct_log_set_fw_filter((log_level_fw[i] >> 8) & 0xFF, - log_level_fw[i] & 0xFF); - } -#endif - - priv->dbg.blocks = blocks; - LOG_INFO(priv, INIT, "blocks=%d\n", blocks); - priv->dbg.dump = (bool)dump; - LOG_INFO(priv, INIT, "dump=%d\n", dump); - priv->dbg.jump = (bool)jump; - LOG_INFO(priv, INIT, "jump=%d\n", jump); - priv->dbg.direct = (bool)direct; - LOG_INFO(priv, INIT, "direct=%d\n", direct); - priv->dbg.checksum = (bool)checksum; - LOG_INFO(priv, INIT, "checksum=%d\n", checksum); - priv->dbg.fw_download = (bool)fw_download; - LOG_INFO(priv, INIT, "fw_download=%d\n", fw_download); - priv->dbg.block_size = block_size; - LOG_INFO(priv, INIT, "block_size=%d\n", block_size); - priv->dbg.download_trans_blks = download_trans_blks; - LOG_INFO(priv, INIT, "download_trans_blks=%d\n", download_trans_blks); -} - -/***************************************************************************** - * - * sysfs attributes - * - *****************************************************************************/ -static ssize_t show_iwmct_fw_version(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwmct_priv *priv = dev_get_drvdata(d); - return sprintf(buf, "%s\n", priv->dbg.label_fw); -} -static DEVICE_ATTR(cc_label_fw, S_IRUGO, show_iwmct_fw_version, NULL); - -#ifdef CONFIG_IWMC3200TOP_DEBUG -static DEVICE_ATTR(log_level, S_IWUSR | S_IRUGO, - show_iwmct_log_level, store_iwmct_log_level); -static DEVICE_ATTR(log_level_fw, S_IWUSR | S_IRUGO, - show_iwmct_log_level_fw, store_iwmct_log_level_fw); -#endif - -static struct attribute *iwmct_sysfs_entries[] = { - &dev_attr_cc_label_fw.attr, -#ifdef CONFIG_IWMC3200TOP_DEBUG - &dev_attr_log_level.attr, - &dev_attr_log_level_fw.attr, -#endif - NULL -}; - -static struct attribute_group iwmct_attribute_group = { - .name = NULL, /* put in device directory */ - .attrs = iwmct_sysfs_entries, -}; - - -static int iwmct_probe(struct sdio_func *func, - const struct sdio_device_id *id) -{ - struct iwmct_priv *priv; - int ret; - int val = 1; - int addr = IWMC_SDIO_INTR_ENABLE_ADDR; - - dev_dbg(&func->dev, "enter iwmct_probe\n"); - - dev_dbg(&func->dev, "IRQ polling period id %u msecs, HZ is %d\n", - jiffies_to_msecs(2147483647), HZ); - - priv = kzalloc(sizeof(struct iwmct_priv), GFP_KERNEL); - if (!priv) { - dev_err(&func->dev, "kzalloc error\n"); - return -ENOMEM; - } - priv->func = func; - sdio_set_drvdata(func, priv); - - INIT_WORK(&priv->bus_rescan_worker, iwmct_rescan_worker); - INIT_WORK(&priv->isr_worker, iwmct_irq_read_worker); - - init_waitqueue_head(&priv->wait_q); - - sdio_claim_host(func); - /* FIXME: Remove after it is fixed in the Boot ROM upgrade */ - func->enable_timeout = 10; - - /* In our HW, setting the block size also wakes up the boot rom. */ - ret = sdio_set_block_size(func, priv->dbg.block_size); - if (ret) { - LOG_ERROR(priv, INIT, - "sdio_set_block_size() failure: %d\n", ret); - goto error_sdio_enable; - } - - ret = sdio_enable_func(func); - if (ret) { - LOG_ERROR(priv, INIT, "sdio_enable_func() failure: %d\n", ret); - goto error_sdio_enable; - } - - /* init reset and dev_sync states */ - atomic_set(&priv->reset, 0); - atomic_set(&priv->dev_sync, 0); - - /* init read req queue */ - INIT_LIST_HEAD(&priv->read_req_list); - - /* process configurable parameters */ - iwmct_dbg_init_params(priv); - ret = sysfs_create_group(&func->dev.kobj, &iwmct_attribute_group); - if (ret) { - LOG_ERROR(priv, INIT, "Failed to register attributes and " - "initialize module_params\n"); - goto error_dev_attrs; - } - - iwmct_dbgfs_register(priv, DRV_NAME); - - if (!priv->dbg.direct && priv->dbg.download_trans_blks > 8) { - LOG_INFO(priv, INIT, - "Reducing transaction to 8 blocks = 2K (from %d)\n", - priv->dbg.download_trans_blks); - priv->dbg.download_trans_blks = 8; - } - priv->trans_len = priv->dbg.download_trans_blks * priv->dbg.block_size; - LOG_INFO(priv, INIT, "Transaction length = %d\n", priv->trans_len); - - ret = sdio_claim_irq(func, iwmct_irq); - if (ret) { - LOG_ERROR(priv, INIT, "sdio_claim_irq() failure: %d\n", ret); - goto error_claim_irq; - } - - - /* Enable function's interrupt */ - sdio_writeb(priv->func, val, addr, &ret); - if (ret) { - LOG_ERROR(priv, INIT, "Failure writing to " - "Interrupt Enable Register (%d): %d\n", addr, ret); - goto error_enable_int; - } - - sdio_release_host(func); - - LOG_INFO(priv, INIT, "exit iwmct_probe\n"); - - return ret; - -error_enable_int: - sdio_release_irq(func); -error_claim_irq: - sdio_disable_func(func); -error_dev_attrs: - iwmct_dbgfs_unregister(priv->dbgfs); - sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group); -error_sdio_enable: - sdio_release_host(func); - return ret; -} - -static void iwmct_remove(struct sdio_func *func) -{ - struct iwmct_work_struct *read_req; - struct iwmct_priv *priv = sdio_get_drvdata(func); - - LOG_INFO(priv, INIT, "enter\n"); - - sdio_claim_host(func); - sdio_release_irq(func); - sdio_release_host(func); - - /* Make sure works are finished */ - flush_work_sync(&priv->bus_rescan_worker); - flush_work_sync(&priv->isr_worker); - - sdio_claim_host(func); - sdio_disable_func(func); - sysfs_remove_group(&func->dev.kobj, &iwmct_attribute_group); - iwmct_dbgfs_unregister(priv->dbgfs); - sdio_release_host(func); - - /* free read requests */ - while (!list_empty(&priv->read_req_list)) { - read_req = list_entry(priv->read_req_list.next, - struct iwmct_work_struct, list); - - list_del(&read_req->list); - kfree(read_req); - } - - kfree(priv); -} - - -static const struct sdio_device_id iwmct_ids[] = { - /* Intel Wireless MultiCom 3200 Top Driver */ - { SDIO_DEVICE(SDIO_VENDOR_ID_INTEL, 0x1404)}, - { }, /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE(sdio, iwmct_ids); - -static struct sdio_driver iwmct_driver = { - .probe = iwmct_probe, - .remove = iwmct_remove, - .name = DRV_NAME, - .id_table = iwmct_ids, -}; - -static int __init iwmct_init(void) -{ - int rc; - - /* Default log filter settings */ - iwmct_log_set_filter(LOG_SRC_ALL, LOG_SEV_FILTER_RUNTIME); - iwmct_log_set_filter(LOG_SRC_FW_MSG, LOG_SEV_FW_FILTER_ALL); - iwmct_log_set_fw_filter(LOG_SRC_ALL, FW_LOG_SEV_FILTER_RUNTIME); - - rc = sdio_register_driver(&iwmct_driver); - - return rc; -} - -static void __exit iwmct_exit(void) -{ - sdio_unregister_driver(&iwmct_driver); -} - -module_init(iwmct_init); -module_exit(iwmct_exit); - diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c index 28adefe70f9..08aad69c8da 100644 --- a/drivers/misc/lkdtm.c +++ b/drivers/misc/lkdtm.c @@ -477,6 +477,8 @@ static ssize_t lkdtm_debugfs_read(struct file *f, char __user *user_buf, int i, n, out; buf = (char *)__get_free_page(GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; n = snprintf(buf, PAGE_SIZE, "Available crash types:\n"); for (i = 0; i < ARRAY_SIZE(cp_type); i++) diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index a7d0bb0880e..e77f86e69fb 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -162,6 +162,9 @@ int mei_hw_init(struct mei_device *dev) if ((dev->host_hw_state & H_IS) == H_IS) mei_reg_write(dev, H_CSR, dev->host_hw_state); + /* Doesn't change in runtime */ + dev->hbuf_depth = (dev->host_hw_state & H_CBD) >> 24; + dev->recvd_msg = false; dev_dbg(&dev->pdev->dev, "reset in start the mei device.\n"); @@ -303,7 +306,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->iamthif_cl.host_client_id); mei_reset_iamthif_params(dev); - dev->wd_due_counter = 0; dev->extra_write_index = 0; } diff --git a/drivers/misc/mei/interface.c b/drivers/misc/mei/interface.c index 428d21e3641..509c3957ff4 100644 --- a/drivers/misc/mei/interface.c +++ b/drivers/misc/mei/interface.c @@ -58,16 +58,18 @@ void mei_disable_interrupts(struct mei_device *dev) } /** - * _host_get_filled_slots - gets number of device filled buffer slots + * mei_hbuf_filled_slots - gets number of device filled buffer slots * * @device: the device structure * * returns number of filled slots */ -static unsigned char _host_get_filled_slots(const struct mei_device *dev) +static unsigned char mei_hbuf_filled_slots(struct mei_device *dev) { char read_ptr, write_ptr; + dev->host_hw_state = mei_hcsr_read(dev); + read_ptr = (char) ((dev->host_hw_state & H_CBRP) >> 8); write_ptr = (char) ((dev->host_hw_state & H_CBWP) >> 16); @@ -75,43 +77,33 @@ static unsigned char _host_get_filled_slots(const struct mei_device *dev) } /** - * mei_host_buffer_is_empty - checks if host buffer is empty. + * mei_hbuf_is_empty - checks if host buffer is empty. * * @dev: the device structure * - * returns 1 if empty, 0 - otherwise. + * returns true if empty, false - otherwise. */ -int mei_host_buffer_is_empty(struct mei_device *dev) +bool mei_hbuf_is_empty(struct mei_device *dev) { - unsigned char filled_slots; - - dev->host_hw_state = mei_hcsr_read(dev); - filled_slots = _host_get_filled_slots(dev); - - if (filled_slots == 0) - return 1; - - return 0; + return mei_hbuf_filled_slots(dev) == 0; } /** - * mei_count_empty_write_slots - counts write empty slots. + * mei_hbuf_empty_slots - counts write empty slots. * * @dev: the device structure * * returns -1(ESLOTS_OVERFLOW) if overflow, otherwise empty slots count */ -int mei_count_empty_write_slots(struct mei_device *dev) +int mei_hbuf_empty_slots(struct mei_device *dev) { - unsigned char buffer_depth, filled_slots, empty_slots; + unsigned char filled_slots, empty_slots; - dev->host_hw_state = mei_hcsr_read(dev); - buffer_depth = (unsigned char) ((dev->host_hw_state & H_CBD) >> 24); - filled_slots = _host_get_filled_slots(dev); - empty_slots = buffer_depth - filled_slots; + filled_slots = mei_hbuf_filled_slots(dev); + empty_slots = dev->hbuf_depth - filled_slots; /* check for overflow */ - if (filled_slots > buffer_depth) + if (filled_slots > dev->hbuf_depth) return -EOVERFLOW; return empty_slots; @@ -127,52 +119,39 @@ int mei_count_empty_write_slots(struct mei_device *dev) * * This function returns -EIO if write has failed */ -int mei_write_message(struct mei_device *dev, - struct mei_msg_hdr *header, - unsigned char *write_buffer, - unsigned long write_length) +int mei_write_message(struct mei_device *dev, struct mei_msg_hdr *header, + unsigned char *buf, unsigned long length) { - u32 temp_msg = 0; - unsigned long bytes_written = 0; - unsigned char buffer_depth, filled_slots, empty_slots; - unsigned long dw_to_write; - - dev->host_hw_state = mei_hcsr_read(dev); + unsigned long rem, dw_cnt; + u32 *reg_buf = (u32 *)buf; + int i; + int empty_slots; - dev_dbg(&dev->pdev->dev, - "host_hw_state = 0x%08x.\n", - dev->host_hw_state); dev_dbg(&dev->pdev->dev, "mei_write_message header=%08x.\n", *((u32 *) header)); - buffer_depth = (unsigned char) ((dev->host_hw_state & H_CBD) >> 24); - filled_slots = _host_get_filled_slots(dev); - empty_slots = buffer_depth - filled_slots; - dev_dbg(&dev->pdev->dev, - "filled = %hu, empty = %hu.\n", - filled_slots, empty_slots); - - dw_to_write = ((write_length + 3) / 4); + empty_slots = mei_hbuf_empty_slots(dev); + dev_dbg(&dev->pdev->dev, "empty slots = %hu.\n", empty_slots); - if (dw_to_write > empty_slots) + dw_cnt = mei_data2slots(length); + if (empty_slots < 0 || dw_cnt > empty_slots) return -EIO; mei_reg_write(dev, H_CB_WW, *((u32 *) header)); - while (write_length >= 4) { - mei_reg_write(dev, H_CB_WW, - *(u32 *) (write_buffer + bytes_written)); - bytes_written += 4; - write_length -= 4; - } + for (i = 0; i < length / 4; i++) + mei_reg_write(dev, H_CB_WW, reg_buf[i]); - if (write_length > 0) { - memcpy(&temp_msg, &write_buffer[bytes_written], write_length); - mei_reg_write(dev, H_CB_WW, temp_msg); + rem = length & 0x3; + if (rem > 0) { + u32 reg = 0; + memcpy(®, &buf[length - rem], rem); + mei_reg_write(dev, H_CB_WW, reg); } + dev->host_hw_state = mei_hcsr_read(dev); dev->host_hw_state |= H_IG; mei_hcsr_set(dev); dev->me_hw_state = mei_mecsr_read(dev); diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h index ddff5d16616..fb5c7db4723 100644 --- a/drivers/misc/mei/interface.h +++ b/drivers/misc/mei/interface.h @@ -41,14 +41,28 @@ int mei_write_message(struct mei_device *dev, unsigned char *write_buffer, unsigned long write_length); -int mei_host_buffer_is_empty(struct mei_device *dev); +bool mei_hbuf_is_empty(struct mei_device *dev); + +int mei_hbuf_empty_slots(struct mei_device *dev); + +static inline size_t mei_hbuf_max_data(const struct mei_device *dev) +{ + return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr); +} + +/* get slots (dwords) from a message length + header (bytes) */ +static inline unsigned char mei_data2slots(size_t length) +{ + return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4); +} int mei_count_full_read_slots(struct mei_device *dev); -int mei_count_empty_write_slots(struct mei_device *dev); int mei_flow_ctrl_creds(struct mei_device *dev, struct mei_cl *cl); + + int mei_wd_send(struct mei_device *dev); int mei_wd_stop(struct mei_device *dev, bool preserve); int mei_wd_host_init(struct mei_device *dev); diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 23f5463d4ca..c6ffbbe5a6c 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -267,8 +267,7 @@ static int _mei_irq_thread_iamthif_read(struct mei_device *dev, s32 *slots) + sizeof(struct hbm_flow_control))) { return -EMSGSIZE; } - *slots -= (sizeof(struct mei_msg_hdr) + - sizeof(struct hbm_flow_control) + 3) / 4; + *slots -= mei_data2slots(sizeof(struct hbm_flow_control)); if (mei_send_flow_control(dev, &dev->iamthif_cl)) { dev_dbg(&dev->pdev->dev, "iamthif flow control failed\n"); return -EIO; @@ -280,7 +279,7 @@ static int _mei_irq_thread_iamthif_read(struct mei_device *dev, s32 *slots) dev->iamthif_msg_buf_index = 0; dev->iamthif_msg_buf_size = 0; dev->iamthif_stall_timer = IAMTHIF_STALL_TIMER; - dev->mei_host_buffer_is_empty = mei_host_buffer_is_empty(dev); + dev->mei_host_buffer_is_empty = mei_hbuf_is_empty(dev); return 0; } @@ -300,28 +299,25 @@ static int _mei_irq_thread_close(struct mei_device *dev, s32 *slots, struct mei_cl *cl, struct mei_io_list *cmpl_list) { - if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) + - sizeof(struct hbm_client_disconnect_request))) { - *slots -= (sizeof(struct mei_msg_hdr) + - sizeof(struct hbm_client_disconnect_request) + 3) / 4; + if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) + + sizeof(struct hbm_client_disconnect_request))) + return -EBADMSG; - if (mei_disconnect(dev, cl)) { - cl->status = 0; - cb_pos->information = 0; - list_move_tail(&cb_pos->cb_list, - &cmpl_list->mei_cb.cb_list); - return -EMSGSIZE; - } else { - cl->state = MEI_FILE_DISCONNECTING; - cl->status = 0; - cb_pos->information = 0; - list_move_tail(&cb_pos->cb_list, - &dev->ctrl_rd_list.mei_cb.cb_list); - cl->timer_count = MEI_CONNECT_TIMEOUT; - } + *slots -= mei_data2slots(sizeof(struct hbm_client_disconnect_request)); + + if (mei_disconnect(dev, cl)) { + cl->status = 0; + cb_pos->information = 0; + list_move_tail(&cb_pos->cb_list, + &cmpl_list->mei_cb.cb_list); + return -EMSGSIZE; } else { - /* return the cancel routine */ - return -EBADMSG; + cl->state = MEI_FILE_DISCONNECTING; + cl->status = 0; + cb_pos->information = 0; + list_move_tail(&cb_pos->cb_list, + &dev->ctrl_rd_list.mei_cb.cb_list); + cl->timer_count = MEI_CONNECT_TIMEOUT; } return 0; @@ -575,10 +571,9 @@ static void mei_client_disconnect_request(struct mei_device *dev, disconnect_req->me_addr); cl_pos->state = MEI_FILE_DISCONNECTED; cl_pos->timer_count = 0; - if (cl_pos == &dev->wd_cl) { - dev->wd_due_counter = 0; + if (cl_pos == &dev->wd_cl) dev->wd_pending = false; - } else if (cl_pos == &dev->iamthif_cl) + else if (cl_pos == &dev->iamthif_cl) dev->iamthif_timer = 0; /* prepare disconnect response */ @@ -842,8 +837,8 @@ static int _mei_irq_thread_read(struct mei_device *dev, s32 *slots, return -EBADMSG; } - *slots -= (sizeof(struct mei_msg_hdr) + - sizeof(struct hbm_flow_control) + 3) / 4; + *slots -= mei_data2slots(sizeof(struct hbm_flow_control)); + if (mei_send_flow_control(dev, cl)) { cl->status = -ENODEV; cb_pos->information = 0; @@ -872,27 +867,25 @@ static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots, struct mei_cl *cl, struct mei_io_list *cmpl_list) { - if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) + + if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) + sizeof(struct hbm_client_connect_request))) { - cl->state = MEI_FILE_CONNECTING; - *slots -= (sizeof(struct mei_msg_hdr) + - sizeof(struct hbm_client_connect_request) + 3) / 4; - if (mei_connect(dev, cl)) { - cl->status = -ENODEV; - cb_pos->information = 0; - list_del(&cb_pos->cb_list); - return -ENODEV; - } else { - list_move_tail(&cb_pos->cb_list, - &dev->ctrl_rd_list.mei_cb.cb_list); - cl->timer_count = MEI_CONNECT_TIMEOUT; - } - } else { /* return the cancel routine */ list_del(&cb_pos->cb_list); return -EBADMSG; } + cl->state = MEI_FILE_CONNECTING; + *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request)); + if (mei_connect(dev, cl)) { + cl->status = -ENODEV; + cb_pos->information = 0; + list_del(&cb_pos->cb_list); + return -ENODEV; + } else { + list_move_tail(&cb_pos->cb_list, + &dev->ctrl_rd_list.mei_cb.cb_list); + cl->timer_count = MEI_CONNECT_TIMEOUT; + } return 0; } @@ -932,8 +925,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots, cb_pos->information); dev_dbg(&dev->pdev->dev, "mei_hdr->length =%d\n", mei_hdr->length); - *slots -= (sizeof(struct mei_msg_hdr) + - mei_hdr->length + 3) / 4; + *slots -= mei_data2slots(mei_hdr->length); if (mei_write_message(dev, mei_hdr, (unsigned char *) (cb_pos->request_buffer.data + @@ -951,7 +943,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots, list_move_tail(&cb_pos->cb_list, &dev->write_waiting_list.mei_cb.cb_list); } - } else if (*slots == ((dev->host_hw_state & H_CBD) >> 24)) { + } else if (*slots == dev->hbuf_depth) { /* buffer is still empty */ mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0]; mei_hdr->host_addr = cl->host_client_id; @@ -960,9 +952,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots, (*slots * sizeof(u32)) - sizeof(struct mei_msg_hdr); mei_hdr->msg_complete = 0; mei_hdr->reserved = 0; - - (*slots) -= (sizeof(struct mei_msg_hdr) + - mei_hdr->length + 3) / 4; + *slots -= mei_data2slots(mei_hdr->length); if (mei_write_message(dev, mei_hdr, (unsigned char *) (cb_pos->request_buffer.data + @@ -1021,8 +1011,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots, mei_hdr->msg_complete = 1; mei_hdr->reserved = 0; - *slots -= (sizeof(struct mei_msg_hdr) + - mei_hdr->length + 3) / 4; + *slots -= mei_data2slots(mei_hdr->length); if (mei_write_message(dev, mei_hdr, (dev->iamthif_msg_buf + @@ -1046,8 +1035,8 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots, &dev->write_waiting_list.mei_cb.cb_list); } - } else if (*slots == ((dev->host_hw_state & H_CBD) >> 24)) { - /* buffer is still empty */ + } else if (*slots == dev->hbuf_depth) { + /* buffer is still empty */ mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0]; mei_hdr->host_addr = cl->host_client_id; mei_hdr->me_addr = cl->me_client_id; @@ -1056,8 +1045,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots, mei_hdr->msg_complete = 0; mei_hdr->reserved = 0; - *slots -= (sizeof(struct mei_msg_hdr) + - mei_hdr->length + 3) / 4; + *slots -= mei_data2slots(mei_hdr->length); if (mei_write_message(dev, mei_hdr, (dev->iamthif_msg_buf + @@ -1199,17 +1187,19 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list, struct mei_io_list *list; int ret; - if (!mei_host_buffer_is_empty(dev)) { + if (!mei_hbuf_is_empty(dev)) { dev_dbg(&dev->pdev->dev, "host buffer is not empty.\n"); return 0; } - *slots = mei_count_empty_write_slots(dev); + *slots = mei_hbuf_empty_slots(dev); + if (*slots <= 0) + return -EMSGSIZE; + /* complete all waiting for write CB */ dev_dbg(&dev->pdev->dev, "complete all waiting for write cb.\n"); list = &dev->write_waiting_list; - list_for_each_entry_safe(pos, next, - &list->mei_cb.cb_list, cb_list) { + list_for_each_entry_safe(pos, next, &list->mei_cb.cb_list, cb_list) { cl = (struct mei_cl *)pos->file_private; if (cl == NULL) continue; @@ -1219,17 +1209,15 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list, if (MEI_WRITING == cl->writing_state && (pos->major_file_operations == MEI_WRITE) && (cl != &dev->iamthif_cl)) { - dev_dbg(&dev->pdev->dev, - "MEI WRITE COMPLETE\n"); + dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n"); cl->writing_state = MEI_WRITE_COMPLETE; list_add_tail(&pos->cb_list, - &cmpl_list->mei_cb.cb_list); + &cmpl_list->mei_cb.cb_list); } if (cl == &dev->iamthif_cl) { dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n"); if (dev->iamthif_flow_control_pending) { - ret = _mei_irq_thread_iamthif_read( - dev, slots); + ret = _mei_irq_thread_iamthif_read(dev, slots); if (ret) return ret; } @@ -1254,25 +1242,18 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list, } if (dev->mei_state == MEI_ENABLED) { if (dev->wd_pending && - mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) { + mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) { if (mei_wd_send(dev)) dev_dbg(&dev->pdev->dev, "wd send failed.\n"); - else - if (mei_flow_ctrl_reduce(dev, &dev->wd_cl)) - return -ENODEV; + else if (mei_flow_ctrl_reduce(dev, &dev->wd_cl)) + return -ENODEV; dev->wd_pending = false; - if (dev->wd_timeout) { - *slots -= (sizeof(struct mei_msg_hdr) + - MEI_START_WD_DATA_SIZE + 3) / 4; - dev->wd_due_counter = 2; - } else { - *slots -= (sizeof(struct mei_msg_hdr) + - MEI_WD_PARAMS_SIZE + 3) / 4; - dev->wd_due_counter = 0; - } - + if (dev->wd_timeout) + *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE); + else + *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE); } } if (dev->stop) @@ -1320,42 +1301,34 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list, /* complete write list CB */ dev_dbg(&dev->pdev->dev, "complete write list cb.\n"); list_for_each_entry_safe(pos, next, - &dev->write_list.mei_cb.cb_list, cb_list) { + &dev->write_list.mei_cb.cb_list, cb_list) { cl = (struct mei_cl *)pos->file_private; if (cl == NULL) continue; if (cl != &dev->iamthif_cl) { - if (!mei_flow_ctrl_creds(dev, cl)) { + if (mei_flow_ctrl_creds(dev, cl) <= 0) { dev_dbg(&dev->pdev->dev, - "No flow control" - " credentials for client" - " %d, not sending.\n", - cl->host_client_id); + "No flow control credentials for client %d, not sending.\n", + cl->host_client_id); continue; } - ret = _mei_irq_thread_cmpl(dev, slots, - pos, - cl, cmpl_list); + ret = _mei_irq_thread_cmpl(dev, slots, pos, + cl, cmpl_list); if (ret) return ret; } else if (cl == &dev->iamthif_cl) { /* IAMTHIF IOCTL */ dev_dbg(&dev->pdev->dev, "complete amthi write cb.\n"); - if (!mei_flow_ctrl_creds(dev, cl)) { + if (mei_flow_ctrl_creds(dev, cl) <= 0) { dev_dbg(&dev->pdev->dev, - "No flow control" - " credentials for amthi" - " client %d.\n", - cl->host_client_id); + "No flow control credentials for amthi client %d.\n", + cl->host_client_id); continue; } - ret = _mei_irq_thread_cmpl_iamthif(dev, - slots, - pos, - cl, - cmpl_list); + ret = _mei_irq_thread_cmpl_iamthif(dev, slots, pos, + cl, cmpl_list); if (ret) return ret; @@ -1555,7 +1528,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id) end: dev_dbg(&dev->pdev->dev, "end of bottom half function.\n"); dev->host_hw_state = mei_hcsr_read(dev); - dev->mei_host_buffer_is_empty = mei_host_buffer_is_empty(dev); + dev->mei_host_buffer_is_empty = mei_hbuf_is_empty(dev); bus_message_received = false; if (dev->recvd_msg && waitqueue_active(&dev->wait_recvd_msg)) { diff --git a/drivers/misc/mei/iorw.c b/drivers/misc/mei/iorw.c index f9cced69b65..50f52e21f58 100644 --- a/drivers/misc/mei/iorw.c +++ b/drivers/misc/mei/iorw.c @@ -481,12 +481,8 @@ int amthi_write(struct mei_device *dev, struct mei_cl_cb *cb) if (ret && dev->mei_host_buffer_is_empty) { ret = 0; dev->mei_host_buffer_is_empty = false; - if (cb->request_buffer.size > - (((dev->host_hw_state & H_CBD) >> 24) * sizeof(u32)) - -sizeof(struct mei_msg_hdr)) { - mei_hdr.length = - (((dev->host_hw_state & H_CBD) >> 24) * - sizeof(u32)) - sizeof(struct mei_msg_hdr); + if (cb->request_buffer.size > mei_hbuf_max_data(dev)) { + mei_hdr.length = mei_hbuf_max_data(dev); mei_hdr.msg_complete = 0; } else { mei_hdr.length = cb->request_buffer.size; diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index 7de13891e49..09233020886 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -714,13 +714,8 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf, if (rets && dev->mei_host_buffer_is_empty) { rets = 0; dev->mei_host_buffer_is_empty = false; - if (length > ((((dev->host_hw_state & H_CBD) >> 24) * - sizeof(u32)) - sizeof(struct mei_msg_hdr))) { - - mei_hdr.length = - (((dev->host_hw_state & H_CBD) >> 24) * - sizeof(u32)) - - sizeof(struct mei_msg_hdr); + if (length > mei_hbuf_max_data(dev)) { + mei_hdr.length = mei_hbuf_max_data(dev); mei_hdr.msg_complete = 0; } else { mei_hdr.length = length; @@ -1147,7 +1142,7 @@ static int mei_pci_resume(struct device *device) err = request_threaded_irq(pdev->irq, NULL, mei_interrupt_thread_handler, - 0, mei_driver_name, dev); + IRQF_ONESHOT, mei_driver_name, dev); else err = request_threaded_irq(pdev->irq, mei_interrupt_quick_handler, @@ -1187,44 +1182,7 @@ static struct pci_driver mei_driver = { .driver.pm = MEI_PM_OPS, }; -/** - * mei_init_module - Driver Registration Routine - * - * mei_init_module is the first routine called when the driver is - * loaded. All it does is to register with the PCI subsystem. - * - * returns 0 on success, <0 on failure. - */ -static int __init mei_init_module(void) -{ - int ret; - - pr_debug("loading.\n"); - /* init pci module */ - ret = pci_register_driver(&mei_driver); - if (ret < 0) - pr_err("error registering driver.\n"); - - return ret; -} - -module_init(mei_init_module); - -/** - * mei_exit_module - Driver Exit Cleanup Routine - * - * mei_exit_module is called just before the driver is removed - * from memory. - */ -static void __exit mei_exit_module(void) -{ - pci_unregister_driver(&mei_driver); - - pr_debug("unloaded successfully.\n"); -} - -module_exit(mei_exit_module); - +module_pci_driver(mei_driver); MODULE_AUTHOR("Intel Corporation"); MODULE_DESCRIPTION("Intel(R) Management Engine Interface"); diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 63d7ee97c5f..d61c4ddfc80 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -167,7 +167,10 @@ struct mei_io_list { struct mei_cl_cb mei_cb; }; -/* MEI private device struct */ +/** + * struct mei_deive - MEI private device struct + * @hbuf_depth - depth of host(write) buffer + */ struct mei_device { struct pci_dev *pdev; /* pointer to pci device struct */ /* @@ -205,6 +208,7 @@ struct mei_device { */ u32 host_hw_state; u32 me_hw_state; + u8 hbuf_depth; /* * waiting queue for receive message from FW */ @@ -237,15 +241,14 @@ struct mei_device { bool mei_host_buffer_is_empty; struct mei_cl wd_cl; + bool wd_interface_reg; bool wd_pending; bool wd_stopped; bool wd_bypass; /* if false, don't refresh watchdog ME client */ u16 wd_timeout; /* seconds ((wd_data[1] << 8) + wd_data[0]) */ - u16 wd_due_counter; unsigned char wd_data[MEI_START_WD_DATA_SIZE]; - struct file *iamthif_file_object; struct mei_cl iamthif_cl; struct mei_cl_cb *iamthif_current_cb; @@ -259,8 +262,6 @@ struct mei_device { bool iamthif_flow_control_pending; bool iamthif_ioctl; bool iamthif_canceled; - - bool wd_interface_reg; }; @@ -361,7 +362,8 @@ int mei_find_me_client_index(const struct mei_device *dev, uuid_le cuuid); * * returns register value (u32) */ -static inline u32 mei_reg_read(struct mei_device *dev, unsigned long offset) +static inline u32 mei_reg_read(const struct mei_device *dev, + unsigned long offset) { return ioread32(dev->mem_addr + offset); } @@ -373,8 +375,8 @@ static inline u32 mei_reg_read(struct mei_device *dev, unsigned long offset) * @offset: offset from which to write the data * @value: register value to write (u32) */ -static inline void mei_reg_write(struct mei_device *dev, - unsigned long offset, u32 value) +static inline void mei_reg_write(const struct mei_device *dev, + unsigned long offset, u32 value) { iowrite32(value, dev->mem_addr + offset); } @@ -386,7 +388,7 @@ static inline void mei_reg_write(struct mei_device *dev, * * returns the byte read. */ -static inline u32 mei_hcsr_read(struct mei_device *dev) +static inline u32 mei_hcsr_read(const struct mei_device *dev) { return mei_reg_read(dev, H_CSR); } @@ -398,7 +400,7 @@ static inline u32 mei_hcsr_read(struct mei_device *dev) * * returns ME_CSR_HA register value (u32) */ -static inline u32 mei_mecsr_read(struct mei_device *dev) +static inline u32 mei_mecsr_read(const struct mei_device *dev) { return mei_reg_read(dev, ME_CSR_HA); } @@ -410,7 +412,7 @@ static inline u32 mei_mecsr_read(struct mei_device *dev) * * returns ME_CB_RW register value (u32) */ -static inline u32 mei_mecbrw_read(struct mei_device *dev) +static inline u32 mei_mecbrw_read(const struct mei_device *dev) { return mei_reg_read(dev, ME_CB_RW); } diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c index e2ec0505eb5..5133fd77b91 100644 --- a/drivers/misc/mei/wd.c +++ b/drivers/misc/mei/wd.c @@ -53,11 +53,12 @@ static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout) } /** - * host_init_wd - mei initialization wd. + * mei_wd_host_init - connect to the watchdog client * * @dev: the device structure * returns -ENENT if wd client cannot be found * -EIO if write has failed + * 0 on success */ int mei_wd_host_init(struct mei_device *dev) { @@ -137,7 +138,6 @@ int mei_wd_stop(struct mei_device *dev, bool preserve) return 0; dev->wd_timeout = 0; - dev->wd_due_counter = 0; memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE); dev->stop = true; @@ -357,8 +357,6 @@ void mei_watchdog_register(struct mei_device *dev) { dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n", dev->wd_timeout); - dev->wd_due_counter = !!dev->wd_timeout; - if (watchdog_register_device(&amt_wd_dev)) { dev_err(&dev->pdev->dev, "wd: unable to register watchdog device.\n"); diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 17bbacb1b4b..87b251ab6ec 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -452,9 +452,9 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part, if (msg->activate_gru_mq_desc_gpa != part_uv->activate_gru_mq_desc_gpa) { - spin_lock_irqsave(&part_uv->flags_lock, irq_flags); + spin_lock(&part_uv->flags_lock); part_uv->flags &= ~XPC_P_CACHED_ACTIVATE_GRU_MQ_DESC_UV; - spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags); + spin_unlock(&part_uv->flags_lock); part_uv->activate_gru_mq_desc_gpa = msg->activate_gru_mq_desc_gpa; } diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c index 2b62232c2c6..acfaeeb9e01 100644 --- a/drivers/misc/ti-st/st_core.c +++ b/drivers/misc/ti-st/st_core.c @@ -349,6 +349,11 @@ void st_int_recv(void *disc_data, st_gdata->rx_skb = alloc_skb( st_gdata->list[type]->max_frame_size, GFP_ATOMIC); + if (st_gdata->rx_skb == NULL) { + pr_err("out of memory: dropping\n"); + goto done; + } + skb_reserve(st_gdata->rx_skb, st_gdata->list[type]->reserve); /* next 2 required for BT only */ |