patch-2.2.17 linux/drivers/sound/dmasound.c

• Lines: 178
• Date: Mon Sep 4 18:39:21 2000
• Orig file: v2.2.16/drivers/sound/dmasound.c
• Orig date: Mon Sep 4 18:37:37 2000

diff -u --recursive --new-file v2.2.16/drivers/sound/dmasound.c linux/drivers/sound/dmasound.c
@@ -115,6 +115,7 @@
 #include <asm/adb.h>
 #include <asm/cuda.h>
 #include <asm/pmu.h>
+#include <asm/feature.h>
 #include "awacs_defs.h"
 #include <linux/nvram.h>
 #include <linux/vt_kern.h>
@@ -175,6 +176,7 @@
 static int awacs_rate_index;
 static int awacs_subframe;
 static int awacs_spkr_vol;
+static struct device_node* awacs_node;
 
 static int awacs_revision;
 #define AWACS_BURGUNDY	100		/* fake revision # for burgundy */
@@ -3018,6 +3020,12 @@
 	out_le32(&awacs_txdma->control, RUN<<16);
 	/* disable interrupts from awacs interface */
 	out_le32(&awacs->control, in_le32(&awacs->control) & 0xfff);
+#ifdef CONFIG_PMAC_PBOOK
+	if (is_pbook_G3) {
+		feature_clear(awacs_node, FEATURE_Sound_power);
+		feature_clear(awacs_node, FEATURE_Sound_CLK_enable);
+	}
+#endif
 	free_irq(awacs_irq, (void *) awacs);
 	free_irq(awacs_tx_irq, (void *) awacs);
 	kfree(awacs_tx_cmd_space);
@@ -3370,8 +3378,21 @@
 		PMacSilence();
 		disable_irq(awacs_irq);
 		disable_irq(awacs_tx_irq);
+		feature_clear(awacs_node, FEATURE_Sound_CLK_enable);
+		feature_clear(awacs_node, FEATURE_Sound_power);
 		break;
 	case PBOOK_WAKE:
+		/* There is still a problem on wake. Sound seems to work fine
+		   if I launch mpg123 and resumes fine if mpg123 was playing,
+		   but the console beep is dead until I do something with the
+		   mixer. Probably yet another timing issue */
+		if (!feature_test(awacs_node, FEATURE_Sound_CLK_enable)
+		    || !feature_test(awacs_node, FEATURE_Sound_power)) {
+			/* these aren't present on the 3400 AFAIK -- paulus */
+			feature_set(awacs_node, FEATURE_Sound_CLK_enable);
+			feature_set(awacs_node, FEATURE_Sound_power);
+			mdelay(1000);
+		}
 		out_le32(&awacs->control, MASK_IEPC
 			 | (awacs_rate_index << 8) | 0x11
 			 | (awacs_revision < AWACS_BURGUNDY? MASK_IEE: 0));
@@ -3388,6 +3409,16 @@
 			mdelay(2);
 			awacs_write(awacs_reg[1] | MASK_ADDR1);
 		}
+		/* enable CD sound input */
+		if (macio_base && is_pbook_G3) {
+			out_8(macio_base + 0x37, 3);
+		} else if (is_pbook_3400) {
+			feature_set(awacs_node, FEATURE_IOBUS_enable);
+			udelay(10);
+			in_8((unsigned char *)0xf301a190);
+		}
+ 		/* Resume pending sounds. Paul, Is this wrong ? */
+ 		PMacPlay();
 	}
 	return PBOOK_SLEEP_OK;
 }
@@ -4596,6 +4627,7 @@
 	u_long fmt;
 	int data;
 	int size, nbufs;
+	audio_buf_info info;
 
 	switch (cmd) {
 	case SNDCTL_DSP_RESET:
@@ -4671,6 +4703,14 @@
 		sq_setup(numBufs, size, sound_buffers);
 		sq.max_active = nbufs;
 		return 0;
+	case SNDCTL_DSP_GETOSPACE:
+		info.fragments = sq.max_active - sq.count;
+		info.fragstotal = sq.max_active;
+		info.fragsize = sq.block_size;
+		info.bytes = info.fragments * info.fragsize;
+		if (copy_to_user((void *)arg, &info, sizeof(info)))
+			return -EFAULT;
+		return 0;
 
 	default:
 		return mixer_ioctl(inode, file, cmd, arg);
@@ -4777,7 +4817,9 @@
 #endif /* CONFIG_AMIGA */
 #ifdef CONFIG_PPC
 	case DMASND_AWACS:
-		sprintf(mach, "PowerMac (AWACS rev %d) ", awacs_revision);
+		/* BenH: This one used to sprintf in mach which doesn't point to
+		 * a large enough buffer */
+		len += sprintf(buffer+len, "PowerMac (AWACS rev %d) ", awacs_revision);
 		break;
 #endif /* CONFIG_PPC */
 	}
@@ -5022,6 +5064,16 @@
 			printk(KERN_ERR "DMA sound driver: Not enough buffer memory, driver disabled!\n");
 			return;
 		}
+		awacs_node = np;
+#ifdef CONFIG_PMAC_PBOOK
+		if (machine_is_compatible("PowerBook1,1")
+		    || machine_is_compatible("AAPL,PowerBook1998")) {
+			feature_set(np, FEATURE_Sound_CLK_enable);
+			feature_set(np, FEATURE_Sound_power);
+			/* Shorter delay will not work */
+			mdelay(1000);
+		}
+#endif
 		awacs_tx_cmds = (volatile struct dbdma_cmd *)
 			DBDMA_ALIGN(awacs_tx_cmd_space);
 		awacs_reg[0] = MASK_MUX_CD;
@@ -5041,7 +5093,10 @@
 			awacs_revision =
 				(in_le32(&awacs->codec_stat) >> 12) & 0xf;
 			if (awacs_revision == 3) {
+				mdelay(100);
 				awacs_write(0x6000);
+				mdelay(2);
+				awacs_write(awacs_reg[1] + MASK_ADDR1);
 				awacs_enable_amp(100 * 0x101);
 			}
 		}
@@ -5063,27 +5118,35 @@
 		/* Powerbooks have odd ways of enabling inputs such as
 		   an expansion-bay CD or sound from an internal modem
 		   or a PC-card modem. */
-		if (machine_is_compatible("AAPL,3400/2400")) {
+		if (machine_is_compatible("AAPL,3400/2400")
+			|| machine_is_compatible("AAPL,3500")) {
 			is_pbook_3400 = 1;
 			/*
 			 * Enable CD and PC-card sound inputs.
 			 * This is done by reading from address
 			 * f301a000, + 0x10 to enable the expansion-bay
 			 * CD sound input, + 0x80 to enable the PC-card
-			 * sound input.  The 0x100 seems to enable the
-			 * MESH and/or its SCSI bus drivers.
+			 * sound input.  The 0x100 enables the SCSI bus
+			 * terminator power.
 			 */
 			in_8((unsigned char *)0xf301a190);
-		} else if (machine_is_compatible("PowerBook1,1")) {
-			np = find_devices("mac-io");
-			if (np && np->n_addrs > 0) {
-				is_pbook_G3 = 1;
-				macio_base = (unsigned char *)
-					ioremap(np->addrs[0].address, 0x40);
-				/* enable CD sound input */
-				out_8(macio_base + 0x37, 3);
+		} else if (machine_is_compatible("PowerBook1,1")
+			   || machine_is_compatible("AAPL,PowerBook1998")) {
+			struct device_node* mio;
+			macio_base = 0;
+			is_pbook_G3 = 1;
+			for (mio = np->parent; mio; mio = mio->parent) {
+				if (strcmp(mio->name, "mac-io") == 0
+				    && mio->n_addrs > 0) {
+					macio_base = (unsigned char *) ioremap
+						(mio->addrs[0].address, 0x40);
+					break;
+				}
 			}
-		}
+			/* enable CD sound input */
+			if (macio_base)
+				out_8(macio_base + 0x37, 3);
+ 		}
 	}
 #endif /* CONFIG_PPC */