diff options
Diffstat (limited to 'drivers/misc/modem_if/sipc4_io_device.c')
| -rw-r--r-- | drivers/misc/modem_if/sipc4_io_device.c | 311 |
1 files changed, 105 insertions, 206 deletions
diff --git a/drivers/misc/modem_if/sipc4_io_device.c b/drivers/misc/modem_if/sipc4_io_device.c index 28f95f7..da1ea04 100644 --- a/drivers/misc/modem_if/sipc4_io_device.c +++ b/drivers/misc/modem_if/sipc4_io_device.c @@ -1,6 +1,4 @@ -/* /linux/drivers/misc/modem_if/modem_io_device.c - * - * Copyright (C) 2010 Google, Inc. +/* * Copyright (C) 2010 Samsung Electronics. * * This software is licensed under the terms of the GNU General Public @@ -26,10 +24,7 @@ #include <linux/etherdevice.h> #include <linux/device.h> -#include <linux/platform_data/modem.h> -#ifdef CONFIG_LINK_DEVICE_C2C -#include <linux/platform_data/c2c.h> -#endif +#include "modem.h" #include "modem_prj.h" #include "modem_utils.h" @@ -40,7 +35,8 @@ * So, give restriction to allocation size below 1 page to prevent * big pages broken. */ -#define MAX_RXDATA_SIZE 0x0E00 /* 4 * 1024 - 512 */ +#define MAX_RXDATA_SIZE (4096 - 512) +#define MAX_BOOTDATA_SIZE 0x4008 /* EBL package format*/ #define MAX_MULTI_FMT_SIZE 0x4000 /* 16 * 1024 */ static const char hdlc_start[1] = { HDLC_START }; @@ -250,22 +246,6 @@ static int rx_hdlc_head_check(struct io_device *iod, struct link_device *ld, hdr->start = HDLC_START; hdr->len = 0; - /* debug print */ - switch (iod->format) { - case IPC_FMT: - case IPC_RAW: - case IPC_MULTI_RAW: - case IPC_RFS: - /* TODO: print buf... */ - break; - - case IPC_CMD: - case IPC_BOOT: - case IPC_RAMDUMP: - default: - break; - } - buf += len; done_len += len; rest -= len; /* rest, call by value */ @@ -409,12 +389,6 @@ static int rx_multi_fmt_frame(struct sk_buff *rx_skb) /* If there has been no multiple frame with this ID */ if (!(fh->control & 0x80)) { /* It is a single frame because the "more" bit is 0. */ -#if 0 - mif_err("\n<%s> Rx FMT frame (len %d)\n", - iod->name, rcvd); - print_sipc4_fmt_frame(data); - mif_err("\n"); -#endif skb_queue_tail(&iod->sk_rx_q, fragdata(iod, ld)->skb_recv); mif_debug("wake up wq of %s\n", iod->name); @@ -449,12 +423,6 @@ static int rx_multi_fmt_frame(struct sk_buff *rx_skb) /* It is the last frame because the "more" bit is 0. */ mif_info("The Last (ID %d, %d bytes received)\n", id, skb->len); -#if 0 - mif_err("\n<%s> Rx FMT frame (len %d)\n", - iod->name, skb->len); - print_sipc4_fmt_frame(skb->data); - mif_err("\n"); -#endif skb_queue_tail(&iod->sk_rx_q, skb); iod->skb[id] = NULL; mif_info("wake up wq of %s\n", iod->name); @@ -491,12 +459,6 @@ static int rx_multi_fmt_frame_sipc42(struct sk_buff *rx_skb) /* If there has been no multiple frame with this ID */ if (!(fh->control & 0x80)) { /* It is a single frame because the "more" bit is 0. */ -#if 0 - mif_err("\n<%s> Rx FMT frame (len %d)\n", - iod->name, rcvd); - print_sipc4_fmt_frame(data); - mif_err("\n"); -#endif skb_queue_tail(&real_iod->sk_rx_q, fragdata(iod, ld)->skb_recv); mif_debug("wake up wq of %s\n", iod->name); @@ -530,12 +492,6 @@ static int rx_multi_fmt_frame_sipc42(struct sk_buff *rx_skb) /* It is the last frame because the "more" bit is 0. */ mif_err("The Last (ID %d, %d bytes received)\n", id, skb->len); -#if 0 - mif_err("\n<%s> Rx FMT frame (len %d)\n", - iod->name, skb->len); - print_sipc4_fmt_frame(skb->data); - mif_err("\n"); -#endif skb_queue_tail(&real_iod->sk_rx_q, skb); real_iod->skb[id] = NULL; mif_info("wake up wq of %s\n", real_iod->name); @@ -819,55 +775,6 @@ exit: return err; } -static int rx_rfs_packet(struct io_device *iod, struct link_device *ld, - const char *data, unsigned size) -{ - int err = 0; - int pad = 0; - int rcvd = 0; - struct sk_buff *skb; - - if (data[0] != HDLC_START) { - mif_err("Dropping RFS packet ... " - "size = %d, start = %02X %02X %02X %02X\n", - size, - data[0], data[1], data[2], data[3]); - return -EINVAL; - } - - if (data[size-1] != HDLC_END) { - for (pad = 1; pad < 4; pad++) - if (data[(size-1)-pad] == HDLC_END) - break; - - if (pad >= 4) { - char *b = (char *)data; - unsigned sz = size; - mif_err("size %d, No END_FLAG!!!\n", size); - mif_err("end = %02X %02X %02X %02X\n", - b[sz-4], b[sz-3], b[sz-2], b[sz-1]); - return -EINVAL; - } else { - mif_info("padding = %d\n", pad); - } - } - - skb = rx_alloc_skb(size, iod, ld); - if (unlikely(!skb)) { - mif_err("alloc_skb fail\n"); - return -ENOMEM; - } - - /* copy the RFS haeder to skb->data */ - rcvd = size - sizeof(hdlc_start) - sizeof(hdlc_end) - pad; - memcpy(skb_put(skb, rcvd), ((char *)data + sizeof(hdlc_start)), rcvd); - - fragdata(iod, ld)->skb_recv = skb; - err = rx_iodev_skb(fragdata(iod, ld)->skb_recv); - - return err; -} - /* called from link device when a packet arrives for this io device */ static int io_dev_recv_data_from_link_dev(struct io_device *iod, struct link_device *ld, const char *data, unsigned int len) @@ -891,14 +798,9 @@ static int io_dev_recv_data_from_link_dev(struct io_device *iod, */ switch (iod->format) { - case IPC_RFS: -#ifdef CONFIG_IPC_CMC22x_OLD_RFS - err = rx_rfs_packet(iod, ld, data, len); - return err; -#endif - case IPC_FMT: case IPC_RAW: + case IPC_RFS: case IPC_MULTI_RAW: if (iod->waketime) wake_lock_timeout(&iod->wakelock, iod->waketime); @@ -961,12 +863,17 @@ static int io_dev_recv_data_from_link_dev(struct io_device *iod, static void io_dev_modem_state_changed(struct io_device *iod, enum modem_state state) { - iod->mc->phone_state = state; - mif_err("modem state changed. (iod: %s, state: %d)\n", - iod->name, state); + struct modem_ctl *mc = iod->mc; + int old_state = mc->phone_state; - if ((state == STATE_CRASH_RESET) || (state == STATE_CRASH_EXIT) - || (state == STATE_NV_REBUILDING)) + if (old_state != state) { + mc->phone_state = state; + mif_err("%s state changed (%s -> %s)\n", mc->name, + get_cp_state_str(old_state), get_cp_state_str(state)); + } + + if (state == STATE_CRASH_RESET || state == STATE_CRASH_EXIT || + state == STATE_NV_REBUILDING) wake_up(&iod->wq); } @@ -977,10 +884,24 @@ static void io_dev_modem_state_changed(struct io_device *iod, */ static void io_dev_sim_state_changed(struct io_device *iod, bool sim_online) { + +#if defined(CONFIG_MACH_KONA) && defined(CONFIG_UMTS_MODEM_XMM6262) + mif_err("modem_current_state is %d\n", iod->mc->phone_state); +#endif + if (atomic_read(&iod->opened) == 0) { - mif_err("iod is not opened: %s\n", - iod->name); - } else if (iod->mc->sim_state.online == sim_online) { + mif_err("iod is not opened: %s\n", iod->name); + /* update latest sim status */ + iod->mc->sim_state.online = sim_online; + } +#if defined(CONFIG_LINK_DEVICE_HSIC) && defined(CONFIG_UMTS_MODEM_XMM6262) // fixed modem unknown issue (kina 3G) + else if (iod->mc->phone_state == STATE_BOOTING) { + mif_err("modem_current_state is STATE_BOOTING\n"); + /* update latest sim status */ + iod->mc->sim_state.online = sim_online; + } +#endif + else if (iod->mc->sim_state.online == sim_online) { mif_err("sim state not changed.\n"); } else { iod->mc->sim_state.online = sim_online; @@ -995,6 +916,7 @@ static void io_dev_sim_state_changed(struct io_device *iod, bool sim_online) } } + static int misc_open(struct inode *inode, struct file *filp) { struct io_device *iod = to_io_device(filp->private_data); @@ -1078,32 +1000,32 @@ static long misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) switch (cmd) { case IOCTL_MODEM_ON: - mif_debug("misc_ioctl : IOCTL_MODEM_ON\n"); + mif_debug("%s: IOCTL_MODEM_ON\n", iod->name); return iod->mc->ops.modem_on(iod->mc); case IOCTL_MODEM_OFF: - mif_debug("misc_ioctl : IOCTL_MODEM_OFF\n"); + mif_debug("%s: IOCTL_MODEM_OFF\n", iod->name); return iod->mc->ops.modem_off(iod->mc); case IOCTL_MODEM_RESET: - mif_debug("misc_ioctl : IOCTL_MODEM_RESET\n"); + mif_debug("%s: IOCTL_MODEM_RESET\n", iod->name); return iod->mc->ops.modem_reset(iod->mc); case IOCTL_MODEM_BOOT_ON: - mif_debug("misc_ioctl : IOCTL_MODEM_BOOT_ON\n"); + mif_debug("%s: IOCTL_MODEM_BOOT_ON\n", iod->name); return iod->mc->ops.modem_boot_on(iod->mc); case IOCTL_MODEM_BOOT_OFF: - mif_debug("misc_ioctl : IOCTL_MODEM_BOOT_OFF\n"); + mif_debug("%s: IOCTL_MODEM_BOOT_OFF\n", iod->name); return iod->mc->ops.modem_boot_off(iod->mc); /* TODO - will remove this command after ril updated */ case IOCTL_MODEM_BOOT_DONE: - mif_debug("misc_ioctl : IOCTL_MODEM_BOOT_DONE\n"); + mif_debug("%s: IOCTL_MODEM_BOOT_DONE\n", iod->name); return 0; case IOCTL_MODEM_STATUS: - mif_debug("misc_ioctl : IOCTL_MODEM_STATUS\n"); + mif_debug("%s: IOCTL_MODEM_STATUS\n", iod->name); p_state = iod->mc->phone_state; if ((p_state == STATE_CRASH_RESET) || @@ -1126,7 +1048,7 @@ static long misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return p_state; case IOCTL_MODEM_PROTOCOL_SUSPEND: - mif_info("misc_ioctl : IOCTL_MODEM_PROTOCOL_SUSPEND\n"); + mif_info("%s: IOCTL_MODEM_PROTOCOL_SUSPEND\n", iod->name); if (iod->format != IPC_MULTI_RAW) return -EINVAL; @@ -1134,8 +1056,16 @@ static long misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) iodevs_for_each(iod->msd, iodev_netif_stop, 0); return 0; + case IOCTL_MODEM_DL_START: + mif_info("%s: IOCTL_MODEM_DL_START\n", iod->name); + return ld->dload_start(ld, iod); + + case IOCTL_MODEM_FW_UPDATE: + mif_info("%s: IOCTL_MODEM_FW_UPDATE\n", iod->name); + return ld->firm_update(ld, iod, arg); + case IOCTL_MODEM_PROTOCOL_RESUME: - mif_info("misc_ioctl : IOCTL_MODEM_PROTOCOL_RESUME\n"); + mif_info("%s: IOCTL_MODEM_PROTOCOL_RESUME\n", iod->name); if (iod->format != IPC_MULTI_RAW) return -EINVAL; @@ -1144,21 +1074,29 @@ static long misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return 0; case IOCTL_MODEM_DUMP_START: - mif_err("misc_ioctl : IOCTL_MODEM_DUMP_START\n"); + mif_err("%s: IOCTL_MODEM_DUMP_START\n", iod->name); + return ld->dump_start(ld, iod); + + case IOCTL_MODEM_RAMDUMP_START: + mif_err("%s: IOCTL_MODEM_RAMDUMP_START\n", iod->name); return ld->dump_start(ld, iod); case IOCTL_MODEM_DUMP_UPDATE: - mif_debug("misc_ioctl : IOCTL_MODEM_DUMP_UPDATE\n"); + mif_debug("%s: IOCTL_MODEM_DUMP_UPDATE\n", iod->name); return ld->dump_update(ld, iod, arg); + case IOCTL_MODEM_RAMDUMP_STOP: + mif_info("%s: IOCTL_MODEM_RAMDUMP_STOP\n", iod->name); + return ld->dump_finish(ld, iod, arg); + case IOCTL_MODEM_FORCE_CRASH_EXIT: - mif_debug("misc_ioctl : IOCTL_MODEM_FORCE_CRASH_EXIT\n"); + mif_debug("%s: IOCTL_MODEM_FORCE_CRASH_EXIT\n", iod->name); if (iod->mc->ops.modem_force_crash_exit) return iod->mc->ops.modem_force_crash_exit(iod->mc); return -EINVAL; case IOCTL_MODEM_CP_UPLOAD: - mif_err("misc_ioctl : IOCTL_MODEM_CP_UPLOAD\n"); + mif_err("%s: IOCTL_MODEM_CP_UPLOAD\n", iod->name); if (copy_from_user(cpinfo_buf + strlen(cpinfo_buf), (void __user *)arg, MAX_CPINFO_SIZE) != 0) panic("CP Crash"); @@ -1167,12 +1105,12 @@ static long misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return 0; case IOCTL_MODEM_DUMP_RESET: - mif_err("misc_ioctl : IOCTL_MODEM_DUMP_RESET\n"); + mif_err("%s: IOCTL_MODEM_DUMP_RESET\n", iod->name); return iod->mc->ops.modem_dump_reset(iod->mc); #if defined(CONFIG_SEC_DUAL_MODEM_MODE) case IOCTL_MODEM_SWITCH_MODEM: - mif_err("misc_ioctl : IOCTL_MODEM_SWITCH_MODEM\n"); + mif_err("%s: IOCTL_MODEM_SWITCH_MODEM\n", iod->name); iod->mc->phone_state = STATE_MODEM_SWITCH; wake_up(&iod->wq); return 0; @@ -1188,20 +1126,6 @@ static long misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) mif_dump_log(iod->mc->msd, iod); return 0; - case IOCTL_MIF_DPRAM_DUMP: -#ifdef CONFIG_LINK_DEVICE_DPRAM - if (iod->mc->mdm_data->link_types & LINKTYPE(LINKDEV_DPRAM)) { - size = iod->mc->mdm_data->dpram_ctl->dp_size; - ret = copy_to_user((void __user *)arg, &size, - sizeof(unsigned long)); - if (ret < 0) - return -EFAULT; - mif_dump_dpram(iod); - return 0; - } -#endif - return -EINVAL; - default: /* If you need to handle the ioctl for specific link device, * then assign the link ioctl handler to ld->ioctl @@ -1209,12 +1133,48 @@ static long misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (ld->ioctl) return ld->ioctl(ld, iod, cmd, arg); - mif_err("misc_ioctl : ioctl 0x%X is not defined.\n", cmd); + mif_err("%s: ioctl 0x%X is not defined\n", iod->name, cmd); return -EINVAL; } return 0; } +static size_t _boot_write(struct io_device *iod, const char __user *buf, + size_t count) +{ + int rest_len = count, frame_len = 0; + char *cur = (char *)buf; + struct sk_buff *skb = NULL; + struct link_device *ld = get_current_link(iod); + int ret; + + while (rest_len) { + frame_len = min(rest_len, MAX_BOOTDATA_SIZE); + skb = alloc_skb(frame_len, GFP_KERNEL); + if (!skb) { + mif_err("fail alloc skb (%d)\n", __LINE__); + return -ENOMEM; + } + if (copy_from_user( + skb_put(skb, frame_len), cur, frame_len) != 0) { + dev_kfree_skb_any(skb); + return -EFAULT; + } + rest_len -= frame_len; + cur += frame_len; + + skbpriv(skb)->iod = iod; + skbpriv(skb)->ld = ld; + + ret = ld->send(ld, iod, skb); + if (ret < 0) { + dev_kfree_skb_any(skb); + return ret; + } + } + return count; +} + static ssize_t misc_write(struct file *filp, const char __user *buf, size_t count, loff_t *ppos) { @@ -1237,6 +1197,10 @@ static ssize_t misc_write(struct file *filp, const char __user *buf, skb = alloc_skb(frame_len, GFP_KERNEL); if (!skb) { + if (frame_len > MAX_BOOTDATA_SIZE && iod->format == IPC_BOOT) { + mif_info("large alloc fail\n"); + return _boot_write(iod, buf, count); + } mif_err("fail alloc skb (%d)\n", __LINE__); return -ENOMEM; } @@ -1278,31 +1242,6 @@ static ssize_t misc_write(struct file *filp, const char __user *buf, skb_put(skb, calc_padding_size(iod, ld, skb->len)); -#if 0 - if (iod->format == IPC_FMT) { - mif_err("\n<%s> Tx HDLC FMT frame (len %d)\n", - iod->name, skb->len); - print_sipc4_hdlc_fmt_frame(skb->data); - mif_err("\n"); - } -#endif -#if 0 - if (iod->format == IPC_RAW) { - mif_err("\n<%s> Tx HDLC RAW frame (len %d)\n", - iod->name, skb->len); - mif_print_data(skb->data, (skb->len < 64 ? skb->len : 64)); - mif_err("\n"); - } -#endif -#if 0 - if (iod->format == IPC_RFS) { - mif_err("\n<%s> Tx HDLC RFS frame (len %d)\n", - iod->name, skb->len); - mif_print_data(skb->data, (skb->len < 64 ? skb->len : 64)); - mif_err("\n"); - } -#endif - /* send data with sk_buff, link device will put sk_buff * into the specific sk_buff_q and run work-q to send data */ @@ -1409,43 +1348,6 @@ static ssize_t misc_read(struct file *filp, char *buf, size_t count, return pktsize; } -#ifdef CONFIG_LINK_DEVICE_C2C -static int misc_mmap(struct file *filp, struct vm_area_struct *vma) -{ - int r = 0; - unsigned long size = 0; - unsigned long pfn = 0; - unsigned long offset = 0; - struct io_device *iod = (struct io_device *)filp->private_data; - - if (!vma) - return -EFAULT; - - size = vma->vm_end - vma->vm_start; - offset = vma->vm_pgoff << PAGE_SHIFT; - if (offset + size > (C2C_CP_RGN_SIZE + C2C_SH_RGN_SIZE)) { - mif_err("offset + size > C2C_CP_RGN_SIZE\n"); - return -EINVAL; - } - - /* Set the noncacheable property to the region */ - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - vma->vm_flags |= VM_RESERVED | VM_IO; - - pfn = __phys_to_pfn(C2C_CP_RGN_ADDR + offset); - r = remap_pfn_range(vma, vma->vm_start, pfn, size, vma->vm_page_prot); - if (r) { - mif_err("Failed in remap_pfn_range()!!!\n"); - return -EAGAIN; - } - - mif_err("VA = 0x%08lx, offset = 0x%lx, size = %lu\n", - vma->vm_start, offset, size); - - return 0; -} -#endif - static const struct file_operations misc_io_fops = { .owner = THIS_MODULE, .open = misc_open, @@ -1454,9 +1356,6 @@ static const struct file_operations misc_io_fops = { .unlocked_ioctl = misc_ioctl, .write = misc_write, .read = misc_read, -#ifdef CONFIG_LINK_DEVICE_C2C - .mmap = misc_mmap, -#endif }; static int vnet_open(struct net_device *ndev) |