1 /*****************************************************************************
3 (c) Cambridge Silicon Radio Limited 2011
4 All rights reserved and confidential information of CSR
6 Refer to LICENSE.txt included with this source for details
9 *****************************************************************************/
12 * ---------------------------------------------------------------------------
13 * FILE: csr_wifi_hip_card_udi.c
16 * Maintain a list of callbacks to log UniFi exchanges to one or more
17 * debug/monitoring client applications.
20 * Just call the UDI driver log fn directly for now.
21 * When done properly, each open() on the UDI device will install
22 * a log function. We will call all log fns whenever a signal is written
23 * to or read form the UniFi.
25 * ---------------------------------------------------------------------------
27 #include <linux/seq_file.h>
28 #include "csr_wifi_hip_unifi.h"
29 #include "csr_wifi_hip_card.h"
32 static void unifi_print_unsafe_sdio_status(card_t *card, struct seq_file *m)
34 #ifdef CSR_UNSAFE_SDIO_ACCESS
37 static const char *const states[] = {
38 "AWAKE", "DROWSY", "TORPID"
40 #define SHARED_READ_RETRY_LIMIT 10
43 seq_printf(m, "Host State: %s\n", states[card->host_state]);
45 r = unifi_check_io_status(card, &iostate);
47 seq_puts(m, remaining, "I/O Check: F1 disabled\n");
50 seq_puts(m, "I/O Check: pending interrupt\n");
52 seq_printf(m, "BH reason interrupt = %d\n", card->bh_reason_unifi);
53 seq_printf(m, "BH reason host = %d\n", card->bh_reason_host);
55 for (i = 0; i < SHARED_READ_RETRY_LIMIT; i++) {
56 r = unifi_read_8_or_16(card, card->sdio_ctrl_addr + 2, &b);
57 if (r == CSR_RESULT_SUCCESS && !(b & 0x80)) {
58 seq_printf(m, "fhsr: %u (driver thinks is %u)\n",
59 b, card->from_host_signals_r);
64 iostate = unifi_read_shared_count(card, card->sdio_ctrl_addr + 4);
65 seq_printf(m, "thsw: %u (driver thinks is %u)\n",
66 iostate, card->to_host_signals_w);
72 * ---------------------------------------------------------------------------
75 * Print status info to given character buffer.
82 * ---------------------------------------------------------------------------
84 s32 unifi_print_status(card_t *card, struct seq_file *m)
86 sdio_config_data_t *cfg;
90 seq_printf(m, "Chip ID %u\n", card->chip_id);
91 seq_printf(m, "Chip Version %04X\n", card->chip_version);
92 seq_printf(m, "HIP v%u.%u\n",
93 (card->config_data.version >> 8) & 0xFF,
94 card->config_data.version & 0xFF);
95 seq_printf(m, "Build %u: %s\n", card->build_id, card->build_id_string);
97 cfg = &card->config_data;
99 seq_printf(m, "sdio ctrl offset %u\n", cfg->sdio_ctrl_offset);
100 seq_printf(m, "fromhost sigbuf handle %u\n", cfg->fromhost_sigbuf_handle);
101 seq_printf(m, "tohost_sigbuf_handle %u\n", cfg->tohost_sigbuf_handle);
102 seq_printf(m, "num_fromhost_sig_frags %u\n", cfg->num_fromhost_sig_frags);
103 seq_printf(m, "num_tohost_sig_frags %u\n", cfg->num_tohost_sig_frags);
104 seq_printf(m, "num_fromhost_data_slots %u\n", cfg->num_fromhost_data_slots);
105 seq_printf(m, "num_tohost_data_slots %u\n", cfg->num_tohost_data_slots);
106 seq_printf(m, "data_slot_size %u\n", cfg->data_slot_size);
108 /* Added by protocol version 0x0001 */
109 seq_printf(m, "overlay_size %u\n", cfg->overlay_size);
111 /* Added by protocol version 0x0300 */
112 seq_printf(m, "data_slot_round %u\n", cfg->data_slot_round);
113 seq_printf(m, "sig_frag_size %u\n", cfg->sig_frag_size);
115 /* Added by protocol version 0x0300 */
116 seq_printf(m, "tohost_sig_pad %u\n", cfg->tohost_signal_padding);
118 seq_puts(m, "\nInternal state:\n");
120 seq_printf(m, "Last PHY PANIC: %04x:%04x\n",
121 card->last_phy_panic_code, card->last_phy_panic_arg);
122 seq_printf(m, "Last MAC PANIC: %04x:%04x\n",
123 card->last_mac_panic_code, card->last_mac_panic_arg);
125 seq_printf(m, "fhsr: %hu\n", (u16)card->from_host_signals_r);
126 seq_printf(m, "fhsw: %hu\n", (u16)card->from_host_signals_w);
127 seq_printf(m, "thsr: %hu\n", (u16)card->to_host_signals_r);
128 seq_printf(m, "thsw: %hu\n", (u16)card->to_host_signals_w);
129 seq_printf(m, "fh buffer contains: %d signals, %td bytes\n",
130 card->fh_buffer.count,
131 card->fh_buffer.ptr - card->fh_buffer.buf);
133 seq_puts(m, "paused: ");
134 for (i = 0; i < ARRAY_SIZE(card->tx_q_paused_flag); i++)
135 seq_printf(m, card->tx_q_paused_flag[i] ? "1" : "0");
138 seq_printf(m, "fh command q: %u waiting, %u free of %u:\n",
139 CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_command_queue),
140 CSR_WIFI_HIP_Q_SLOTS_FREE(&card->fh_command_queue),
141 UNIFI_SOFT_COMMAND_Q_LENGTH);
143 for (i = 0; i < UNIFI_NO_OF_TX_QS; i++)
144 seq_printf(m, "fh traffic q[%u]: %u waiting, %u free of %u:\n",
146 CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_traffic_queue[i]),
147 CSR_WIFI_HIP_Q_SLOTS_FREE(&card->fh_traffic_queue[i]),
148 UNIFI_SOFT_TRAFFIC_Q_LENGTH);
150 seq_printf(m, "fh data slots free: %u\n",
151 card->from_host_data ? CardGetFreeFromHostDataSlots(card) : 0);
153 seq_puts(m, "From host data slots:");
154 n = card->config_data.num_fromhost_data_slots;
155 for (i = 0; i < n && card->from_host_data; i++)
156 seq_printf(m, " %hu", (u16)card->from_host_data[i].bd.data_length);
159 seq_puts(m, "To host data slots:");
160 n = card->config_data.num_tohost_data_slots;
161 for (i = 0; i < n && card->to_host_data; i++)
162 seq_printf(m, " %hu", (u16)card->to_host_data[i].data_length);
165 unifi_print_unsafe_sdio_status(card, m);
167 seq_puts(m, "\nStats:\n");
168 seq_printf(m, "Total SDIO bytes: R=%u W=%u\n",
169 card->sdio_bytes_read, card->sdio_bytes_written);
171 seq_printf(m, "Interrupts generated on card: %u\n", card->unifi_interrupt_seq);