Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 1 | #include <linux/kernel.h> |
Alexander Shishkin | 3c37bb6 | 2013-03-30 02:46:17 +0200 | [diff] [blame] | 2 | #include <linux/device.h> |
| 3 | #include <linux/types.h> |
| 4 | #include <linux/spinlock.h> |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 5 | #include <linux/debugfs.h> |
| 6 | #include <linux/seq_file.h> |
| 7 | #include <linux/uaccess.h> |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 8 | #include <linux/usb/ch9.h> |
| 9 | #include <linux/usb/gadget.h> |
Li Jun | 88bdffc | 2014-04-23 15:56:52 +0800 | [diff] [blame] | 10 | #include <linux/usb/phy.h> |
| 11 | #include <linux/usb/otg.h> |
| 12 | #include <linux/usb/otg-fsm.h> |
Li Jun | b0930d4c | 2015-07-09 15:18:46 +0800 | [diff] [blame] | 13 | #include <linux/usb/chipidea.h> |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 14 | |
| 15 | #include "ci.h" |
| 16 | #include "udc.h" |
| 17 | #include "bits.h" |
Li Jun | c4a8b63 | 2014-04-23 15:56:40 +0800 | [diff] [blame] | 18 | #include "otg.h" |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 19 | |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 20 | /** |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 21 | * ci_device_show: prints information about device capabilities and status |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 22 | */ |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 23 | static int ci_device_show(struct seq_file *s, void *data) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 24 | { |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 25 | struct ci_hdrc *ci = s->private; |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 26 | struct usb_gadget *gadget = &ci->gadget; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 27 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 28 | seq_printf(s, "speed = %d\n", gadget->speed); |
| 29 | seq_printf(s, "max_speed = %d\n", gadget->max_speed); |
| 30 | seq_printf(s, "is_otg = %d\n", gadget->is_otg); |
| 31 | seq_printf(s, "is_a_peripheral = %d\n", gadget->is_a_peripheral); |
| 32 | seq_printf(s, "b_hnp_enable = %d\n", gadget->b_hnp_enable); |
| 33 | seq_printf(s, "a_hnp_support = %d\n", gadget->a_hnp_support); |
| 34 | seq_printf(s, "a_alt_hnp_support = %d\n", gadget->a_alt_hnp_support); |
| 35 | seq_printf(s, "name = %s\n", |
| 36 | (gadget->name ? gadget->name : "")); |
| 37 | |
| 38 | if (!ci->driver) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 39 | return 0; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 40 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 41 | seq_printf(s, "gadget function = %s\n", |
| 42 | (ci->driver->function ? ci->driver->function : "")); |
| 43 | seq_printf(s, "gadget max speed = %d\n", ci->driver->max_speed); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 44 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 45 | return 0; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 46 | } |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 47 | |
| 48 | static int ci_device_open(struct inode *inode, struct file *file) |
| 49 | { |
| 50 | return single_open(file, ci_device_show, inode->i_private); |
| 51 | } |
| 52 | |
| 53 | static const struct file_operations ci_device_fops = { |
| 54 | .open = ci_device_open, |
| 55 | .read = seq_read, |
| 56 | .llseek = seq_lseek, |
| 57 | .release = single_release, |
| 58 | }; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 59 | |
| 60 | /** |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 61 | * ci_port_test_show: reads port test mode |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 62 | */ |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 63 | static int ci_port_test_show(struct seq_file *s, void *data) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 64 | { |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 65 | struct ci_hdrc *ci = s->private; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 66 | unsigned long flags; |
| 67 | unsigned mode; |
| 68 | |
Li Jun | bc24937 | 2015-07-29 13:11:11 +0800 | [diff] [blame] | 69 | pm_runtime_get_sync(ci->dev); |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 70 | spin_lock_irqsave(&ci->lock, flags); |
| 71 | mode = hw_port_test_get(ci); |
| 72 | spin_unlock_irqrestore(&ci->lock, flags); |
Li Jun | bc24937 | 2015-07-29 13:11:11 +0800 | [diff] [blame] | 73 | pm_runtime_put_sync(ci->dev); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 74 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 75 | seq_printf(s, "mode = %u\n", mode); |
| 76 | |
| 77 | return 0; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | /** |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 81 | * ci_port_test_write: writes port test mode |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 82 | */ |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 83 | static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf, |
| 84 | size_t count, loff_t *ppos) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 85 | { |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 86 | struct seq_file *s = file->private_data; |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 87 | struct ci_hdrc *ci = s->private; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 88 | unsigned long flags; |
| 89 | unsigned mode; |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 90 | char buf[32]; |
| 91 | int ret; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 92 | |
Heinrich Schuchardt | bd5fb0a | 2015-04-28 19:30:47 +0200 | [diff] [blame] | 93 | count = min_t(size_t, sizeof(buf) - 1, count); |
| 94 | if (copy_from_user(buf, ubuf, count)) |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 95 | return -EFAULT; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 96 | |
Heinrich Schuchardt | bd5fb0a | 2015-04-28 19:30:47 +0200 | [diff] [blame] | 97 | /* sscanf requires a zero terminated string */ |
| 98 | buf[count] = '\0'; |
| 99 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 100 | if (sscanf(buf, "%u", &mode) != 1) |
| 101 | return -EINVAL; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 102 | |
Li Jun | bc24937 | 2015-07-29 13:11:11 +0800 | [diff] [blame] | 103 | pm_runtime_get_sync(ci->dev); |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 104 | spin_lock_irqsave(&ci->lock, flags); |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 105 | ret = hw_port_test_set(ci, mode); |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 106 | spin_unlock_irqrestore(&ci->lock, flags); |
Li Jun | bc24937 | 2015-07-29 13:11:11 +0800 | [diff] [blame] | 107 | pm_runtime_put_sync(ci->dev); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 108 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 109 | return ret ? ret : count; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 110 | } |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 111 | |
| 112 | static int ci_port_test_open(struct inode *inode, struct file *file) |
| 113 | { |
| 114 | return single_open(file, ci_port_test_show, inode->i_private); |
| 115 | } |
| 116 | |
| 117 | static const struct file_operations ci_port_test_fops = { |
| 118 | .open = ci_port_test_open, |
| 119 | .write = ci_port_test_write, |
| 120 | .read = seq_read, |
| 121 | .llseek = seq_lseek, |
| 122 | .release = single_release, |
| 123 | }; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 124 | |
| 125 | /** |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 126 | * ci_qheads_show: DMA contents of all queue heads |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 127 | */ |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 128 | static int ci_qheads_show(struct seq_file *s, void *data) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 129 | { |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 130 | struct ci_hdrc *ci = s->private; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 131 | unsigned long flags; |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 132 | unsigned i, j; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 133 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 134 | if (ci->role != CI_ROLE_GADGET) { |
| 135 | seq_printf(s, "not in gadget mode\n"); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 136 | return 0; |
| 137 | } |
| 138 | |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 139 | spin_lock_irqsave(&ci->lock, flags); |
| 140 | for (i = 0; i < ci->hw_ep_max/2; i++) { |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 141 | struct ci_hw_ep *hweprx = &ci->ci_hw_ep[i]; |
| 142 | struct ci_hw_ep *hweptx = |
| 143 | &ci->ci_hw_ep[i + ci->hw_ep_max/2]; |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 144 | seq_printf(s, "EP=%02i: RX=%08X TX=%08X\n", |
Alexander Shishkin | 2dbc5c4 | 2013-06-13 18:00:03 +0300 | [diff] [blame] | 145 | i, (u32)hweprx->qh.dma, (u32)hweptx->qh.dma); |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 146 | for (j = 0; j < (sizeof(struct ci_hw_qh)/sizeof(u32)); j++) |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 147 | seq_printf(s, " %04X: %08X %08X\n", j, |
Alexander Shishkin | 2dbc5c4 | 2013-06-13 18:00:03 +0300 | [diff] [blame] | 148 | *((u32 *)hweprx->qh.ptr + j), |
| 149 | *((u32 *)hweptx->qh.ptr + j)); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 150 | } |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 151 | spin_unlock_irqrestore(&ci->lock, flags); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 152 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 153 | return 0; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 154 | } |
| 155 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 156 | static int ci_qheads_open(struct inode *inode, struct file *file) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 157 | { |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 158 | return single_open(file, ci_qheads_show, inode->i_private); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 159 | } |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 160 | |
| 161 | static const struct file_operations ci_qheads_fops = { |
| 162 | .open = ci_qheads_open, |
| 163 | .read = seq_read, |
| 164 | .llseek = seq_lseek, |
| 165 | .release = single_release, |
| 166 | }; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 167 | |
| 168 | /** |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 169 | * ci_requests_show: DMA contents of all requests currently queued (all endpts) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 170 | */ |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 171 | static int ci_requests_show(struct seq_file *s, void *data) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 172 | { |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 173 | struct ci_hdrc *ci = s->private; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 174 | unsigned long flags; |
| 175 | struct list_head *ptr = NULL; |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 176 | struct ci_hw_req *req = NULL; |
Michael Grzeschik | cc9e6c4 | 2013-06-13 17:59:53 +0300 | [diff] [blame] | 177 | struct td_node *node, *tmpnode; |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 178 | unsigned i, j, qsize = sizeof(struct ci_hw_td)/sizeof(u32); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 179 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 180 | if (ci->role != CI_ROLE_GADGET) { |
| 181 | seq_printf(s, "not in gadget mode\n"); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 182 | return 0; |
| 183 | } |
| 184 | |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 185 | spin_lock_irqsave(&ci->lock, flags); |
| 186 | for (i = 0; i < ci->hw_ep_max; i++) |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 187 | list_for_each(ptr, &ci->ci_hw_ep[i].qh.queue) { |
| 188 | req = list_entry(ptr, struct ci_hw_req, queue); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 189 | |
Michael Grzeschik | cc9e6c4 | 2013-06-13 17:59:53 +0300 | [diff] [blame] | 190 | list_for_each_entry_safe(node, tmpnode, &req->tds, td) { |
| 191 | seq_printf(s, "EP=%02i: TD=%08X %s\n", |
| 192 | i % (ci->hw_ep_max / 2), |
| 193 | (u32)node->dma, |
| 194 | ((i < ci->hw_ep_max/2) ? |
| 195 | "RX" : "TX")); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 196 | |
Michael Grzeschik | cc9e6c4 | 2013-06-13 17:59:53 +0300 | [diff] [blame] | 197 | for (j = 0; j < qsize; j++) |
| 198 | seq_printf(s, " %04X: %08X\n", j, |
| 199 | *((u32 *)node->ptr + j)); |
| 200 | } |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 201 | } |
Richard Zhao | 26c696c | 2012-07-07 22:56:40 +0800 | [diff] [blame] | 202 | spin_unlock_irqrestore(&ci->lock, flags); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 203 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 204 | return 0; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 205 | } |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 206 | |
| 207 | static int ci_requests_open(struct inode *inode, struct file *file) |
| 208 | { |
| 209 | return single_open(file, ci_requests_show, inode->i_private); |
| 210 | } |
| 211 | |
| 212 | static const struct file_operations ci_requests_fops = { |
| 213 | .open = ci_requests_open, |
| 214 | .read = seq_read, |
| 215 | .llseek = seq_lseek, |
| 216 | .release = single_release, |
| 217 | }; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 218 | |
Wei Yongjun | df40f8d | 2014-07-22 10:09:45 +0800 | [diff] [blame] | 219 | static int ci_otg_show(struct seq_file *s, void *unused) |
Li Jun | 88bdffc | 2014-04-23 15:56:52 +0800 | [diff] [blame] | 220 | { |
| 221 | struct ci_hdrc *ci = s->private; |
| 222 | struct otg_fsm *fsm; |
| 223 | |
| 224 | if (!ci || !ci_otg_is_fsm_mode(ci)) |
| 225 | return 0; |
| 226 | |
| 227 | fsm = &ci->fsm; |
| 228 | |
| 229 | /* ------ State ----- */ |
| 230 | seq_printf(s, "OTG state: %s\n\n", |
Antoine Tenart | ef44cb4 | 2014-10-30 18:41:16 +0100 | [diff] [blame] | 231 | usb_otg_state_string(ci->otg.state)); |
Li Jun | 88bdffc | 2014-04-23 15:56:52 +0800 | [diff] [blame] | 232 | |
| 233 | /* ------ State Machine Variables ----- */ |
| 234 | seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop); |
| 235 | |
| 236 | seq_printf(s, "a_bus_req: %d\n", fsm->a_bus_req); |
| 237 | |
| 238 | seq_printf(s, "a_srp_det: %d\n", fsm->a_srp_det); |
| 239 | |
| 240 | seq_printf(s, "a_vbus_vld: %d\n", fsm->a_vbus_vld); |
| 241 | |
| 242 | seq_printf(s, "b_conn: %d\n", fsm->b_conn); |
| 243 | |
| 244 | seq_printf(s, "adp_change: %d\n", fsm->adp_change); |
| 245 | |
| 246 | seq_printf(s, "power_up: %d\n", fsm->power_up); |
| 247 | |
| 248 | seq_printf(s, "a_bus_resume: %d\n", fsm->a_bus_resume); |
| 249 | |
| 250 | seq_printf(s, "a_bus_suspend: %d\n", fsm->a_bus_suspend); |
| 251 | |
| 252 | seq_printf(s, "a_conn: %d\n", fsm->a_conn); |
| 253 | |
| 254 | seq_printf(s, "b_bus_req: %d\n", fsm->b_bus_req); |
| 255 | |
| 256 | seq_printf(s, "b_bus_suspend: %d\n", fsm->b_bus_suspend); |
| 257 | |
| 258 | seq_printf(s, "b_se0_srp: %d\n", fsm->b_se0_srp); |
| 259 | |
| 260 | seq_printf(s, "b_ssend_srp: %d\n", fsm->b_ssend_srp); |
| 261 | |
| 262 | seq_printf(s, "b_sess_vld: %d\n", fsm->b_sess_vld); |
| 263 | |
| 264 | seq_printf(s, "b_srp_done: %d\n", fsm->b_srp_done); |
| 265 | |
| 266 | seq_printf(s, "drv_vbus: %d\n", fsm->drv_vbus); |
| 267 | |
| 268 | seq_printf(s, "loc_conn: %d\n", fsm->loc_conn); |
| 269 | |
| 270 | seq_printf(s, "loc_sof: %d\n", fsm->loc_sof); |
| 271 | |
| 272 | seq_printf(s, "adp_prb: %d\n", fsm->adp_prb); |
| 273 | |
| 274 | seq_printf(s, "id: %d\n", fsm->id); |
| 275 | |
| 276 | seq_printf(s, "protocol: %d\n", fsm->protocol); |
| 277 | |
| 278 | return 0; |
| 279 | } |
| 280 | |
| 281 | static int ci_otg_open(struct inode *inode, struct file *file) |
| 282 | { |
| 283 | return single_open(file, ci_otg_show, inode->i_private); |
| 284 | } |
| 285 | |
| 286 | static const struct file_operations ci_otg_fops = { |
| 287 | .open = ci_otg_open, |
| 288 | .read = seq_read, |
| 289 | .llseek = seq_lseek, |
| 290 | .release = single_release, |
| 291 | }; |
| 292 | |
Alexander Shishkin | c8e333a | 2013-03-30 12:53:52 +0200 | [diff] [blame] | 293 | static int ci_role_show(struct seq_file *s, void *data) |
| 294 | { |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 295 | struct ci_hdrc *ci = s->private; |
Alexander Shishkin | c8e333a | 2013-03-30 12:53:52 +0200 | [diff] [blame] | 296 | |
| 297 | seq_printf(s, "%s\n", ci_role(ci)->name); |
| 298 | |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | static ssize_t ci_role_write(struct file *file, const char __user *ubuf, |
| 303 | size_t count, loff_t *ppos) |
| 304 | { |
| 305 | struct seq_file *s = file->private_data; |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 306 | struct ci_hdrc *ci = s->private; |
Alexander Shishkin | c8e333a | 2013-03-30 12:53:52 +0200 | [diff] [blame] | 307 | enum ci_role role; |
| 308 | char buf[8]; |
| 309 | int ret; |
| 310 | |
| 311 | if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) |
| 312 | return -EFAULT; |
| 313 | |
| 314 | for (role = CI_ROLE_HOST; role < CI_ROLE_END; role++) |
| 315 | if (ci->roles[role] && |
| 316 | !strncmp(buf, ci->roles[role]->name, |
| 317 | strlen(ci->roles[role]->name))) |
| 318 | break; |
| 319 | |
| 320 | if (role == CI_ROLE_END || role == ci->role) |
| 321 | return -EINVAL; |
| 322 | |
Li Jun | bc24937 | 2015-07-29 13:11:11 +0800 | [diff] [blame] | 323 | pm_runtime_get_sync(ci->dev); |
Li Jun | 251b3c8 | 2015-10-13 18:23:31 +0800 | [diff] [blame] | 324 | disable_irq(ci->irq); |
Alexander Shishkin | c8e333a | 2013-03-30 12:53:52 +0200 | [diff] [blame] | 325 | ci_role_stop(ci); |
| 326 | ret = ci_role_start(ci, role); |
Li Jun | 251b3c8 | 2015-10-13 18:23:31 +0800 | [diff] [blame] | 327 | enable_irq(ci->irq); |
Li Jun | bc24937 | 2015-07-29 13:11:11 +0800 | [diff] [blame] | 328 | pm_runtime_put_sync(ci->dev); |
Alexander Shishkin | c8e333a | 2013-03-30 12:53:52 +0200 | [diff] [blame] | 329 | |
| 330 | return ret ? ret : count; |
| 331 | } |
| 332 | |
| 333 | static int ci_role_open(struct inode *inode, struct file *file) |
| 334 | { |
| 335 | return single_open(file, ci_role_show, inode->i_private); |
| 336 | } |
| 337 | |
| 338 | static const struct file_operations ci_role_fops = { |
| 339 | .open = ci_role_open, |
| 340 | .write = ci_role_write, |
| 341 | .read = seq_read, |
| 342 | .llseek = seq_lseek, |
| 343 | .release = single_release, |
| 344 | }; |
| 345 | |
Wei Yongjun | df40f8d | 2014-07-22 10:09:45 +0800 | [diff] [blame] | 346 | static int ci_registers_show(struct seq_file *s, void *unused) |
Li Jun | c4a8b63 | 2014-04-23 15:56:40 +0800 | [diff] [blame] | 347 | { |
| 348 | struct ci_hdrc *ci = s->private; |
| 349 | u32 tmp_reg; |
| 350 | |
Li Jun | 0c4d6af | 2015-03-27 19:43:01 +0800 | [diff] [blame] | 351 | if (!ci || ci->in_lpm) |
| 352 | return -EPERM; |
Li Jun | c4a8b63 | 2014-04-23 15:56:40 +0800 | [diff] [blame] | 353 | |
| 354 | /* ------ Registers ----- */ |
| 355 | tmp_reg = hw_read_intr_enable(ci); |
| 356 | seq_printf(s, "USBINTR reg: %08x\n", tmp_reg); |
| 357 | |
| 358 | tmp_reg = hw_read_intr_status(ci); |
| 359 | seq_printf(s, "USBSTS reg: %08x\n", tmp_reg); |
| 360 | |
| 361 | tmp_reg = hw_read(ci, OP_USBMODE, ~0); |
| 362 | seq_printf(s, "USBMODE reg: %08x\n", tmp_reg); |
| 363 | |
| 364 | tmp_reg = hw_read(ci, OP_USBCMD, ~0); |
| 365 | seq_printf(s, "USBCMD reg: %08x\n", tmp_reg); |
| 366 | |
| 367 | tmp_reg = hw_read(ci, OP_PORTSC, ~0); |
| 368 | seq_printf(s, "PORTSC reg: %08x\n", tmp_reg); |
| 369 | |
| 370 | if (ci->is_otg) { |
| 371 | tmp_reg = hw_read_otgsc(ci, ~0); |
| 372 | seq_printf(s, "OTGSC reg: %08x\n", tmp_reg); |
| 373 | } |
| 374 | |
| 375 | return 0; |
| 376 | } |
| 377 | |
| 378 | static int ci_registers_open(struct inode *inode, struct file *file) |
| 379 | { |
| 380 | return single_open(file, ci_registers_show, inode->i_private); |
| 381 | } |
| 382 | |
| 383 | static const struct file_operations ci_registers_fops = { |
| 384 | .open = ci_registers_open, |
| 385 | .read = seq_read, |
| 386 | .llseek = seq_lseek, |
| 387 | .release = single_release, |
| 388 | }; |
| 389 | |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 390 | /** |
| 391 | * dbg_create_files: initializes the attribute interface |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 392 | * @ci: device |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 393 | * |
| 394 | * This function returns an error code |
| 395 | */ |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 396 | int dbg_create_files(struct ci_hdrc *ci) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 397 | { |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 398 | struct dentry *dent; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 399 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 400 | ci->debugfs = debugfs_create_dir(dev_name(ci->dev), NULL); |
| 401 | if (!ci->debugfs) |
| 402 | return -ENOMEM; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 403 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 404 | dent = debugfs_create_file("device", S_IRUGO, ci->debugfs, ci, |
| 405 | &ci_device_fops); |
| 406 | if (!dent) |
| 407 | goto err; |
| 408 | |
| 409 | dent = debugfs_create_file("port_test", S_IRUGO | S_IWUSR, ci->debugfs, |
| 410 | ci, &ci_port_test_fops); |
| 411 | if (!dent) |
| 412 | goto err; |
| 413 | |
| 414 | dent = debugfs_create_file("qheads", S_IRUGO, ci->debugfs, ci, |
| 415 | &ci_qheads_fops); |
| 416 | if (!dent) |
| 417 | goto err; |
| 418 | |
| 419 | dent = debugfs_create_file("requests", S_IRUGO, ci->debugfs, ci, |
| 420 | &ci_requests_fops); |
Alexander Shishkin | c8e333a | 2013-03-30 12:53:52 +0200 | [diff] [blame] | 421 | if (!dent) |
| 422 | goto err; |
| 423 | |
Li Jun | 88bdffc | 2014-04-23 15:56:52 +0800 | [diff] [blame] | 424 | if (ci_otg_is_fsm_mode(ci)) { |
| 425 | dent = debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci, |
| 426 | &ci_otg_fops); |
| 427 | if (!dent) |
| 428 | goto err; |
| 429 | } |
| 430 | |
Alexander Shishkin | c8e333a | 2013-03-30 12:53:52 +0200 | [diff] [blame] | 431 | dent = debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci, |
| 432 | &ci_role_fops); |
Li Jun | c4a8b63 | 2014-04-23 15:56:40 +0800 | [diff] [blame] | 433 | if (!dent) |
| 434 | goto err; |
| 435 | |
| 436 | dent = debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci, |
| 437 | &ci_registers_fops); |
| 438 | |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 439 | if (dent) |
| 440 | return 0; |
| 441 | err: |
| 442 | debugfs_remove_recursive(ci->debugfs); |
| 443 | return -ENOMEM; |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | /** |
| 447 | * dbg_remove_files: destroys the attribute interface |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 448 | * @ci: device |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 449 | */ |
Alexander Shishkin | 8e22978 | 2013-06-24 14:46:36 +0300 | [diff] [blame] | 450 | void dbg_remove_files(struct ci_hdrc *ci) |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 451 | { |
Alexander Shishkin | 2d65128 | 2013-03-30 12:53:51 +0200 | [diff] [blame] | 452 | debugfs_remove_recursive(ci->debugfs); |
Alexander Shishkin | e443b33 | 2012-05-11 17:25:46 +0300 | [diff] [blame] | 453 | } |