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author | Scott Wood <scottwood@freescale.com> | 2014-04-07 23:49:35 (GMT) |
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committer | Scott Wood <scottwood@freescale.com> | 2014-04-07 23:49:35 (GMT) |
commit | 62b8c978ee6b8d135d9e7953221de58000dba986 (patch) | |
tree | 683b04b2e627f6710c22c151b23c8cc9a165315e /drivers/staging/xillybus/xillybus_core.c | |
parent | 78fd82238d0e5716578c326404184a27ba67fd6e (diff) | |
download | linux-fsl-qoriq-62b8c978ee6b8d135d9e7953221de58000dba986.tar.xz |
Rewind v3.13-rc3+ (78fd82238d0e5716) to v3.12
Diffstat (limited to 'drivers/staging/xillybus/xillybus_core.c')
-rw-r--r-- | drivers/staging/xillybus/xillybus_core.c | 153 |
1 files changed, 82 insertions, 71 deletions
diff --git a/drivers/staging/xillybus/xillybus_core.c b/drivers/staging/xillybus/xillybus_core.c index 2ebaf16..7db6f03 100644 --- a/drivers/staging/xillybus/xillybus_core.c +++ b/drivers/staging/xillybus/xillybus_core.c @@ -101,7 +101,7 @@ static struct workqueue_struct *xillybus_wq; * wr_mutex -> rd_mutex -> register_mutex -> wr_spinlock -> rd_spinlock */ -static void malformed_message(struct xilly_endpoint *endpoint, u32 *buf) +static void malformed_message(u32 *buf) { int opcode; int msg_channel, msg_bufno, msg_data, msg_dir; @@ -112,9 +112,9 @@ static void malformed_message(struct xilly_endpoint *endpoint, u32 *buf) msg_bufno = (buf[0] >> 12) & 0x3ff; msg_data = buf[1] & 0xfffffff; - dev_warn(endpoint->dev, - "Malformed message (skipping): opcode=%d, channel=%03x, dir=%d, bufno=%03x, data=%07x\n", - opcode, msg_channel, msg_dir, msg_bufno, msg_data); + pr_warn("xillybus: Malformed message (skipping): " + "opcode=%d, channel=%03x, dir=%d, bufno=%03x, data=%07x\n", + opcode, msg_channel, msg_dir, msg_bufno, msg_data); } /* @@ -152,16 +152,16 @@ irqreturn_t xillybus_isr(int irq, void *data) for (i = 0; i < buf_size; i += 2) if (((buf[i+1] >> 28) & 0xf) != ep->msg_counter) { - malformed_message(ep, &buf[i]); - dev_warn(ep->dev, - "Sending a NACK on counter %x (instead of %x) on entry %d\n", + malformed_message(&buf[i]); + pr_warn("xillybus: Sending a NACK on " + "counter %x (instead of %x) on entry %d\n", ((buf[i+1] >> 28) & 0xf), ep->msg_counter, i/2); if (++ep->failed_messages > 10) - dev_err(ep->dev, - "Lost sync with interrupt messages. Stopping.\n"); + pr_err("xillybus: Lost sync with " + "interrupt messages. Stopping.\n"); else { ep->ephw->hw_sync_sgl_for_device( ep, @@ -177,7 +177,7 @@ irqreturn_t xillybus_isr(int irq, void *data) break; if (i >= buf_size) { - dev_err(ep->dev, "Bad interrupt message. Stopping.\n"); + pr_err("xillybus: Bad interrupt message. Stopping.\n"); return IRQ_HANDLED; } @@ -196,7 +196,7 @@ irqreturn_t xillybus_isr(int irq, void *data) if ((msg_channel > ep->num_channels) || (msg_channel == 0)) { - malformed_message(ep, &buf[i]); + malformed_message(&buf[i]); break; } @@ -204,7 +204,7 @@ irqreturn_t xillybus_isr(int irq, void *data) if (msg_dir) { /* Write channel */ if (msg_bufno >= channel->num_wr_buffers) { - malformed_message(ep, &buf[i]); + malformed_message(&buf[i]); break; } spin_lock(&channel->wr_spinlock); @@ -221,7 +221,7 @@ irqreturn_t xillybus_isr(int irq, void *data) /* Read channel */ if (msg_bufno >= channel->num_rd_buffers) { - malformed_message(ep, &buf[i]); + malformed_message(&buf[i]); break; } @@ -243,14 +243,14 @@ irqreturn_t xillybus_isr(int irq, void *data) if ((msg_channel > ep->num_channels) || (msg_channel == 0) || (!msg_dir) || !ep->channels[msg_channel]->wr_supports_nonempty) { - malformed_message(ep, &buf[i]); + malformed_message(&buf[i]); break; } channel = ep->channels[msg_channel]; if (msg_bufno >= channel->num_wr_buffers) { - malformed_message(ep, &buf[i]); + malformed_message(&buf[i]); break; } spin_lock(&channel->wr_spinlock); @@ -283,11 +283,16 @@ irqreturn_t xillybus_isr(int irq, void *data) case XILLYMSG_OPCODE_FATAL_ERROR: ep->fatal_error = 1; wake_up_interruptible(&ep->ep_wait); /* For select() */ - dev_err(ep->dev, - "FPGA reported a fatal error. This means that the low-level communication with the device has failed. This hardware problem is most likely unrelated to Xillybus (neither kernel module nor FPGA core), but reports are still welcome. All I/O is aborted.\n"); + pr_err("xillybus: FPGA reported a fatal " + "error. This means that the low-level " + "communication with the device has failed. " + "This hardware problem is most likely " + "unrelated to xillybus (neither kernel " + "module nor FPGA core), but reports are " + "still welcome. All I/O is aborted.\n"); break; default: - malformed_message(ep, &buf[i]); + malformed_message(&buf[i]); break; } } @@ -481,8 +486,8 @@ static int xilly_setupchannels(struct xilly_endpoint *ep, if ((channelnum > ep->num_channels) || ((channelnum == 0) && !is_writebuf)) { - dev_err(ep->dev, - "IDT requests channel out of range. Aborting.\n"); + pr_err("xillybus: IDT requests channel out " + "of range. Aborting.\n"); return -ENODEV; } @@ -560,8 +565,9 @@ static int xilly_setupchannels(struct xilly_endpoint *ep, */ if ((left_of_wr_salami < bytebufsize) && (left_of_wr_salami > 0)) { - dev_err(ep->dev, - "Corrupt buffer allocation in IDT. Aborting.\n"); + pr_err("xillybus: " + "Corrupt buffer allocation " + "in IDT. Aborting.\n"); return -ENODEV; } @@ -638,8 +644,9 @@ static int xilly_setupchannels(struct xilly_endpoint *ep, */ if ((left_of_rd_salami < bytebufsize) && (left_of_rd_salami > 0)) { - dev_err(ep->dev, - "Corrupt buffer allocation in IDT. Aborting.\n"); + pr_err("xillybus: " + "Corrupt buffer allocation " + "in IDT. Aborting.\n"); return -ENODEV; } @@ -699,19 +706,19 @@ static int xilly_setupchannels(struct xilly_endpoint *ep, } if (!msg_buf_done) { - dev_err(ep->dev, - "Corrupt IDT: No message buffer. Aborting.\n"); + pr_err("xillybus: Corrupt IDT: No message buffer. " + "Aborting.\n"); return -ENODEV; } return 0; memfail: - dev_err(ep->dev, - "Failed to allocate write buffer memory. Aborting.\n"); + pr_err("xillybus: Failed to allocate write buffer memory. " + "Aborting.\n"); return -ENOMEM; dmafail: - dev_err(ep->dev, "Failed to map DMA memory!. Aborting.\n"); + pr_err("xillybus: Failed to map DMA memory!. Aborting.\n"); return -ENOMEM; } @@ -738,8 +745,8 @@ static void xilly_scan_idt(struct xilly_endpoint *endpoint, scan++; if (scan > end_of_idt) { - dev_err(endpoint->dev, - "IDT device name list overflow. Aborting.\n"); + pr_err("xillybus: IDT device name list overflow. " + "Aborting.\n"); idt_handle->chandesc = NULL; return; } else @@ -750,8 +757,8 @@ static void xilly_scan_idt(struct xilly_endpoint *endpoint, if (len & 0x03) { idt_handle->chandesc = NULL; - dev_err(endpoint->dev, - "Corrupt IDT device name list. Aborting.\n"); + pr_err("xillybus: Corrupt IDT device name list. " + "Aborting.\n"); } idt_handle->entries = len >> 2; @@ -780,7 +787,7 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint) XILLY_TIMEOUT); if (channel->wr_sleepy) { - dev_err(endpoint->dev, "Failed to obtain IDT. Aborting.\n"); + pr_err("xillybus: Failed to obtain IDT. Aborting.\n"); if (endpoint->fatal_error) return -EIO; @@ -796,8 +803,8 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint) DMA_FROM_DEVICE); if (channel->wr_buffers[0]->end_offset != endpoint->idtlen) { - dev_err(endpoint->dev, - "IDT length mismatch (%d != %d). Aborting.\n", + pr_err("xillybus: IDT length mismatch (%d != %d). " + "Aborting.\n", channel->wr_buffers[0]->end_offset, endpoint->idtlen); rc = -ENODEV; return rc; @@ -805,7 +812,7 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint) if (crc32_le(~0, channel->wr_buffers[0]->addr, endpoint->idtlen+1) != 0) { - dev_err(endpoint->dev, "IDT failed CRC check. Aborting.\n"); + pr_err("xillybus: IDT failed CRC check. Aborting.\n"); rc = -ENODEV; return rc; } @@ -814,8 +821,9 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint) /* Check version number. Accept anything below 0x82 for now. */ if (*version > 0x82) { - dev_err(endpoint->dev, - "No support for IDT version 0x%02x. Maybe the xillybus driver needs an upgarde. Aborting.\n", + pr_err("xillybus: No support for IDT version 0x%02x. " + "Maybe the xillybus driver needs an upgarde. " + "Aborting.\n", (int) *version); rc = -ENODEV; return rc; @@ -1304,8 +1312,9 @@ static int xillybus_myflush(struct xilly_channel *channel, long timeout) channel->rd_wait, (!channel->rd_full), timeout) == 0) { - dev_warn(channel->endpoint->dev, - "Timed out while flushing. Output data may be lost.\n"); + pr_warn("xillybus: " + "Timed out while flushing. " + "Output data may be lost.\n"); rc = -ETIMEDOUT; break; @@ -1345,11 +1354,12 @@ static void xillybus_autoflush(struct work_struct *work) rc = xillybus_myflush(channel, -1); if (rc == -EINTR) - dev_warn(channel->endpoint->dev, - "Autoflush failed because work queue thread got a signal.\n"); + pr_warn("xillybus: Autoflush failed because " + "work queue thread got a signal.\n"); else if (rc) - dev_err(channel->endpoint->dev, - "Autoflush failed under weird circumstances.\n"); + pr_err("xillybus: Autoflush failed under " + "weird circumstances.\n"); + } static ssize_t xillybus_write(struct file *filp, const char __user *userbuf, @@ -1605,8 +1615,8 @@ static int xillybus_open(struct inode *inode, struct file *filp) mutex_unlock(&ep_list_lock); if (!endpoint) { - pr_err("xillybus: open() failed to find a device for major=%d and minor=%d\n", - major, minor); + pr_err("xillybus: open() failed to find a device " + "for major=%d and minor=%d\n", major, minor); return -ENODEV; } @@ -1632,15 +1642,15 @@ static int xillybus_open(struct inode *inode, struct file *filp) if ((filp->f_mode & FMODE_READ) && (filp->f_flags & O_NONBLOCK) && (channel->wr_synchronous || !channel->wr_allow_partial || !channel->wr_supports_nonempty)) { - dev_err(endpoint->dev, - "open() failed: O_NONBLOCK not allowed for read on this device\n"); + pr_err("xillybus: open() failed: " + "O_NONBLOCK not allowed for read on this device\n"); return -ENODEV; } if ((filp->f_mode & FMODE_WRITE) && (filp->f_flags & O_NONBLOCK) && (channel->rd_synchronous || !channel->rd_allow_partial)) { - dev_err(endpoint->dev, - "open() failed: O_NONBLOCK not allowed for write on this device\n"); + pr_err("xillybus: open() failed: " + "O_NONBLOCK not allowed for write on this device\n"); return -ENODEV; } @@ -1755,8 +1765,8 @@ static int xillybus_release(struct inode *inode, struct file *filp) rc = mutex_lock_interruptible(&channel->rd_mutex); if (rc) { - dev_warn(channel->endpoint->dev, - "Failed to close file. Hardware left in messy state.\n"); + pr_warn("xillybus: Failed to close file. " + "Hardware left in messy state.\n"); return rc; } @@ -1781,8 +1791,8 @@ static int xillybus_release(struct inode *inode, struct file *filp) if (filp->f_mode & FMODE_READ) { rc = mutex_lock_interruptible(&channel->wr_mutex); if (rc) { - dev_warn(channel->endpoint->dev, - "Failed to close file. Hardware left in messy state.\n"); + pr_warn("xillybus: Failed to close file. " + "Hardware left in messy state.\n"); return rc; } @@ -1843,8 +1853,10 @@ static int xillybus_release(struct inode *inode, struct file *filp) if (channel->wr_sleepy) { mutex_unlock(&channel->wr_mutex); - dev_warn(channel->endpoint->dev, - "Hardware failed to respond to close command, therefore left in messy state.\n"); + pr_warn("xillybus: Hardware failed to " + "respond to close command, " + "therefore left in " + "messy state.\n"); return -EINTR; } } @@ -2010,7 +2022,7 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint, xillyname); if (rc) { - dev_warn(endpoint->dev, "Failed to obtain major/minors"); + pr_warn("xillybus: Failed to obtain major/minors"); goto error1; } @@ -2022,7 +2034,7 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint, rc = cdev_add(&endpoint->cdev, MKDEV(major, minor), endpoint->num_channels); if (rc) { - dev_warn(endpoint->dev, "Failed to add cdev. Aborting.\n"); + pr_warn("xillybus: Failed to add cdev. Aborting.\n"); goto error2; } @@ -2045,15 +2057,14 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint, "%s", devname); if (IS_ERR(device)) { - dev_warn(endpoint->dev, - "Failed to create %s device. Aborting.\n", - devname); + pr_warn("xillybus: Failed to create %s " + "device. Aborting.\n", devname); goto error3; } } - dev_info(endpoint->dev, "Created %d device files.\n", - endpoint->num_channels); + pr_info("xillybus: Created %d device files.\n", + endpoint->num_channels); return 0; /* succeed */ error3: @@ -2082,8 +2093,8 @@ static void xillybus_cleanup_chrdev(struct xilly_endpoint *endpoint) endpoint->lowest_minor), endpoint->num_channels); - dev_info(endpoint->dev, "Removed %d device files.\n", - endpoint->num_channels); + pr_info("xillybus: Removed %d device files.\n", + endpoint->num_channels); } @@ -2096,7 +2107,7 @@ struct xilly_endpoint *xillybus_init_endpoint(struct pci_dev *pdev, endpoint = kzalloc(sizeof(*endpoint), GFP_KERNEL); if (!endpoint) { - dev_err(dev, "Failed to allocate memory. Aborting.\n"); + pr_err("xillybus: Failed to allocate memory. Aborting.\n"); return NULL; } @@ -2130,8 +2141,8 @@ static int xilly_quiesce(struct xilly_endpoint *endpoint) XILLY_TIMEOUT); if (endpoint->idtlen < 0) { - dev_err(endpoint->dev, - "Failed to quiesce the device on exit. Quitting while leaving a mess.\n"); + pr_err("xillybus: Failed to quiesce the device on " + "exit. Quitting while leaving a mess.\n"); return -ENODEV; } return 0; /* Success */ @@ -2198,7 +2209,7 @@ int xillybus_endpoint_discovery(struct xilly_endpoint *endpoint) XILLY_TIMEOUT); if (endpoint->idtlen < 0) { - dev_err(endpoint->dev, "No response from FPGA. Aborting.\n"); + pr_err("xillybus: No response from FPGA. Aborting.\n"); rc = -ENODEV; goto failed_quiesce; } @@ -2312,7 +2323,7 @@ static int __init xillybus_init(void) xillybus_class = class_create(THIS_MODULE, xillyname); if (IS_ERR(xillybus_class)) { rc = PTR_ERR(xillybus_class); - pr_warn("Failed to register class xillybus\n"); + pr_warn("xillybus: Failed to register class xillybus\n"); return rc; } |