Lines Matching refs:ff
3 * ff-transaction.c - a part of driver for RME Fireface series
8 #include "ff.h"
10 static void finish_transmit_midi_msg(struct snd_ff *ff, unsigned int port,
14 READ_ONCE(ff->rx_midi_substreams[port]);
17 ff->rx_midi_error[port] = true;
23 ff->next_ktime[port] = 0;
24 schedule_work(&ff->rx_midi_work[port]);
28 snd_rawmidi_transmit_ack(substream, ff->rx_bytes[port]);
29 ff->rx_bytes[port] = 0;
32 schedule_work(&ff->rx_midi_work[port]);
39 struct snd_ff *ff =
41 finish_transmit_midi_msg(ff, 0, rcode);
48 struct snd_ff *ff =
50 finish_transmit_midi_msg(ff, 1, rcode);
53 static void transmit_midi_msg(struct snd_ff *ff, unsigned int port)
56 READ_ONCE(ff->rx_midi_substreams[port]);
59 struct fw_device *fw_dev = fw_parent_device(ff->unit);
68 if (ff->rx_bytes[port] > 0 || ff->rx_midi_error[port])
72 if (ktime_after(ff->next_ktime[port], ktime_get())) {
73 schedule_work(&ff->rx_midi_work[port]);
77 quad_count = ff->spec->protocol->fill_midi_msg(ff, substream, port);
82 addr = ff->spec->midi_rx_addrs[0];
85 addr = ff->spec->midi_rx_addrs[1];
90 ff->next_ktime[port] = ktime_add_ns(ktime_get(),
91 ff->rx_bytes[port] * 8 * (NSEC_PER_SEC / 31250));
108 fw_send_request(fw_dev->card, &ff->transactions[port], tcode,
110 addr, &ff->msg_buf[port], quad_count * 4,
111 callback, &ff->transactions[port]);
116 struct snd_ff *ff = container_of(work, struct snd_ff, rx_midi_work[0]);
118 transmit_midi_msg(ff, 0);
123 struct snd_ff *ff = container_of(work, struct snd_ff, rx_midi_work[1]);
125 transmit_midi_msg(ff, 1);
133 struct snd_ff *ff = callback_data;
138 offset -= ff->async_handler.offset;
139 ff->spec->protocol->handle_midi_msg(ff, (unsigned int)offset, buf,
143 static int allocate_own_address(struct snd_ff *ff, int i)
148 ff->async_handler.length = ff->spec->midi_addr_range;
149 ff->async_handler.address_callback = handle_midi_msg;
150 ff->async_handler.callback_data = ff;
153 midi_msg_region.end = midi_msg_region.start + ff->async_handler.length;
155 err = fw_core_add_address_handler(&ff->async_handler, &midi_msg_region);
158 if (ff->async_handler.offset & 0x0000ffffffff) {
159 fw_core_remove_address_handler(&ff->async_handler);
174 int snd_ff_transaction_reregister(struct snd_ff *ff)
176 struct fw_card *fw_card = fw_parent_device(ff->unit)->card;
184 addr = (fw_card->node_id << 16) | (ff->async_handler.offset >> 32);
186 return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
187 ff->spec->midi_high_addr,
191 int snd_ff_transaction_register(struct snd_ff *ff)
200 err = allocate_own_address(ff, i);
207 err = snd_ff_transaction_reregister(ff);
211 INIT_WORK(&ff->rx_midi_work[0], transmit_midi0_msg);
212 INIT_WORK(&ff->rx_midi_work[1], transmit_midi1_msg);
217 void snd_ff_transaction_unregister(struct snd_ff *ff)
221 if (ff->async_handler.callback_data == NULL)
223 ff->async_handler.callback_data = NULL;
227 snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
228 ff->spec->midi_high_addr,
231 fw_core_remove_address_handler(&ff->async_handler);