51 static void pt_putsamples(struct pt_data *pt, u16 *ptr, u16 left, u16 right)  in pt_putsamples()  argument
55 	ptr[pt->copyptr] = left;  in pt_putsamples()
56 	idx = pt->copyptr + PT_SAMPLES/2;  in pt_putsamples()
61 static inline int pt_can_write(struct pt_data *pt)  in pt_can_write()  argument
63 	return pt->blocks_copied < pt->blocks_played + 8;  in pt_can_write()
69 	struct pt_data *pt = &card->pt;  in pt_wait_for_write()  local
71 	if (nonblock && !pt_can_write(pt))  in pt_wait_for_write()
73 	while (!pt_can_write(pt) && pt->state != PT_STATE_INACTIVE) {  in pt_wait_for_write()
74 		interruptible_sleep_on(&pt->wait);  in pt_wait_for_write()
78 	if (pt->state == PT_STATE_INACTIVE)  in pt_wait_for_write()
88 	struct pt_data *pt = &card->pt;  in pt_putblock()  local
96 	spin_lock_irqsave(&card->pt.lock, flags);  in pt_putblock()
98 		pt_putsamples(pt, ptr, block[2*i], block[2*i+1]);  in pt_putblock()
99 		if (pt->copyptr == 0)  in pt_putblock()
100 			pt->copyptr = PT_SAMPLES;  in pt_putblock()
101 		pt->copyptr--;  in pt_putblock()
105 	pt->blocks_copied++;  in pt_putblock()
106 	if (pt->blocks_copied >= 4 && pt->state != PT_STATE_PLAYING) {  in pt_putblock()
108 		sblive_writeptr(card, GPR_BASE + pt->enable_gpr, 0, 1);  in pt_putblock()
109 		pt->state = PT_STATE_PLAYING;  in pt_putblock()
111 	spin_unlock_irqrestore(&card->pt.lock, flags);  in pt_putblock()
119 	struct pt_data *pt = &card->pt;  in pt_setup()  local
123 		pt->old_spcs[i] = sblive_readptr(card, SPCS0 + i, 0);  in pt_setup()
124 		if (pt->spcs_to_use & (1 << i)) {  in pt_setup()
129 			if (pt->ac3data)  in pt_setup()
141 	struct pt_data *pt = &card->pt;  in emu10k1_pt_write()  local
150 	if (pt->state == PT_STATE_INACTIVE) {  in emu10k1_pt_write()
152 		pt->playptr = PT_SAMPLES-1;  in emu10k1_pt_write()
153 		pt->copyptr = PT_INITPTR;  in emu10k1_pt_write()
154 		pt->blocks_played = pt->blocks_copied = 0;  in emu10k1_pt_write()
156 		pt->state = PT_STATE_ACTIVATED;  in emu10k1_pt_write()
157 		pt->buf = kmalloc(PT_BLOCKSIZE, GFP_KERNEL);  in emu10k1_pt_write()
158 		pt->prepend_size = 0;  in emu10k1_pt_write()
159 		if (pt->buf == NULL)  in emu10k1_pt_write()
163 	if (pt->prepend_size) {  in emu10k1_pt_write()
164 		int needed = PT_BLOCKSIZE - pt->prepend_size;  in emu10k1_pt_write()
166 		DPD(3, "prepend size %d, prepending %d bytes\n", pt->prepend_size, needed);  in emu10k1_pt_write()
168 			copy_from_user(pt->buf + pt->prepend_size, buffer, count);  in emu10k1_pt_write()
169 			pt->prepend_size += count;  in emu10k1_pt_write()
170 			DPD(3, "prepend size now %d\n", pt->prepend_size);  in emu10k1_pt_write()
173 		copy_from_user(pt->buf + pt->prepend_size, buffer, needed);  in emu10k1_pt_write()
174 		r = pt_putblock(wave_dev, (u16 *) pt->buf, nonblock);  in emu10k1_pt_write()
178 		pt->prepend_size = 0;  in emu10k1_pt_write()
184 		copy_from_user(pt->buf, bufptr, PT_BLOCKSIZE);  in emu10k1_pt_write()
185 		bufptr = (u16 *) pt->buf;  in emu10k1_pt_write()
199 		pt->prepend_size = i;  in emu10k1_pt_write()
200 		copy_from_user(pt->buf, buffer + bytes_copied, i);  in emu10k1_pt_write()
209 	struct pt_data *pt = &card->pt;  in emu10k1_pt_stop()  local
212 	if (pt->state != PT_STATE_INACTIVE) {  in emu10k1_pt_stop()
214 		sblive_writeptr(card, GPR_BASE + pt->enable_gpr, 0, 0);  in emu10k1_pt_stop()
216                         if (pt->spcs_to_use & (1 << i))  in emu10k1_pt_stop()
217 				sblive_writeptr(card, SPCS0 + i, 0, pt->old_spcs[i]);  in emu10k1_pt_stop()
219 		pt->state = PT_STATE_INACTIVE;  in emu10k1_pt_stop()
220 		kfree(pt->buf);  in emu10k1_pt_stop()
227 	struct pt_data *pt = &wave_dev->card->pt;  in emu10k1_pt_waveout_update()  local
230 	if (pt->state == PT_STATE_PLAYING && pt->pos_gpr >= 0) {  in emu10k1_pt_waveout_update()
231 		pos = sblive_readptr(wave_dev->card, GPR_BASE + pt->pos_gpr, 0);  in emu10k1_pt_waveout_update()
237 	woinst->total_played = pt->blocks_played * woinst->buffer.fragment_size + pos;  in emu10k1_pt_waveout_update()