diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-i2c.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-i2c.c | 74 |
1 files changed, 47 insertions, 27 deletions
diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c index 680bc4e35b79..aa09e557b195 100644 --- a/drivers/media/video/cx18/cx18-i2c.c +++ b/drivers/media/video/cx18/cx18-i2c.c @@ -22,13 +22,12 @@ */ #include "cx18-driver.h" +#include "cx18-io.h" #include "cx18-cards.h" #include "cx18-gpio.h" #include "cx18-av-core.h" #include "cx18-i2c.h" -#include <media/ir-kbd-i2c.h> - #define CX18_REG_I2C_1_WR 0xf15000 #define CX18_REG_I2C_1_RD 0xf15008 #define CX18_REG_I2C_2_WR 0xf25100 @@ -39,10 +38,6 @@ #define GETSCL_BIT 0x0004 #define GETSDL_BIT 0x0008 -#ifndef I2C_ADAP_CLASS_TV_ANALOG -#define I2C_ADAP_CLASS_TV_ANALOG I2C_CLASS_TV_ANALOG -#endif - #define CX18_CS5345_I2C_ADDR 0x4c /* This array should match the CX18_HW_ defines */ @@ -162,12 +157,12 @@ static void cx18_setscl(void *data, int state) struct cx18 *cx = ((struct cx18_i2c_algo_callback_data *)data)->cx; int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index; u32 addr = bus_index ? CX18_REG_I2C_2_WR : CX18_REG_I2C_1_WR; - u32 r = read_reg(addr); + u32 r = cx18_read_reg(cx, addr); if (state) - write_reg_sync(r | SETSCL_BIT, addr); + cx18_write_reg_sync(cx, r | SETSCL_BIT, addr); else - write_reg_sync(r & ~SETSCL_BIT, addr); + cx18_write_reg_sync(cx, r & ~SETSCL_BIT, addr); } static void cx18_setsda(void *data, int state) @@ -175,12 +170,12 @@ static void cx18_setsda(void *data, int state) struct cx18 *cx = ((struct cx18_i2c_algo_callback_data *)data)->cx; int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index; u32 addr = bus_index ? CX18_REG_I2C_2_WR : CX18_REG_I2C_1_WR; - u32 r = read_reg(addr); + u32 r = cx18_read_reg(cx, addr); if (state) - write_reg_sync(r | SETSDL_BIT, addr); + cx18_write_reg_sync(cx, r | SETSDL_BIT, addr); else - write_reg_sync(r & ~SETSDL_BIT, addr); + cx18_write_reg_sync(cx, r & ~SETSDL_BIT, addr); } static int cx18_getscl(void *data) @@ -189,7 +184,7 @@ static int cx18_getscl(void *data) int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index; u32 addr = bus_index ? CX18_REG_I2C_2_RD : CX18_REG_I2C_1_RD; - return read_reg(addr) & GETSCL_BIT; + return cx18_read_reg(cx, addr) & GETSCL_BIT; } static int cx18_getsda(void *data) @@ -198,7 +193,7 @@ static int cx18_getsda(void *data) int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index; u32 addr = bus_index ? CX18_REG_I2C_2_RD : CX18_REG_I2C_1_RD; - return read_reg(addr) & GETSDL_BIT; + return cx18_read_reg(cx, addr) & GETSDL_BIT; } /* template for i2c-bit-algo */ @@ -311,8 +306,12 @@ int cx18_i2c_hw(struct cx18 *cx, u32 hw, unsigned int cmd, void *arg) { int addr; - if (hw == CX18_HW_GPIO || hw == 0) + if (hw == 0) return 0; + + if (hw == CX18_HW_GPIO) + return cx18_gpio(cx, cmd, arg); + if (hw == CX18_HW_CX23418) return cx18_av_cmd(cx, cmd, arg); @@ -350,6 +349,8 @@ void cx18_call_i2c_clients(struct cx18 *cx, unsigned int cmd, void *arg) cx18_av_cmd(cx, cmd, arg); i2c_clients_command(&cx->i2c_adap[0], cmd, arg); i2c_clients_command(&cx->i2c_adap[1], cmd, arg); + if (cx->hw_flags & CX18_HW_GPIO) + cx18_gpio(cx, cmd, arg); } /* init + register i2c algo-bit adapter */ @@ -358,6 +359,18 @@ int init_cx18_i2c(struct cx18 *cx) int i; CX18_DEBUG_I2C("i2c init\n"); + /* Sanity checks for the I2C hardware arrays. They must be the + * same size and GPIO/CX23418 must be the last entries. + */ + if (ARRAY_SIZE(hw_driverids) != ARRAY_SIZE(hw_addrs) || + ARRAY_SIZE(hw_devicenames) != ARRAY_SIZE(hw_addrs) || + CX18_HW_GPIO != (1 << (ARRAY_SIZE(hw_addrs) - 2)) || + CX18_HW_CX23418 != (1 << (ARRAY_SIZE(hw_addrs) - 1)) || + hw_driverids[ARRAY_SIZE(hw_addrs) - 1]) { + CX18_ERR("Mismatched I2C hardware arrays\n"); + return -ENODEV; + } + for (i = 0; i < 2; i++) { memcpy(&cx->i2c_adap[i], &cx18_i2c_adap_template, sizeof(struct i2c_adapter)); @@ -380,28 +393,33 @@ int init_cx18_i2c(struct cx18 *cx) cx->i2c_adap[i].dev.parent = &cx->dev->dev; } - if (read_reg(CX18_REG_I2C_2_WR) != 0x0003c02f) { + if (cx18_read_reg(cx, CX18_REG_I2C_2_WR) != 0x0003c02f) { /* Reset/Unreset I2C hardware block */ - write_reg(0x10000000, 0xc71004); /* Clock select 220MHz */ - write_reg_sync(0x10001000, 0xc71024); /* Clock Enable */ + /* Clock select 220MHz */ + cx18_write_reg(cx, 0x10000000, 0xc71004); + /* Clock Enable */ + cx18_write_reg_sync(cx, 0x10001000, 0xc71024); } /* courtesy of Steven Toth <stoth@hauppauge.com> */ - write_reg_sync(0x00c00000, 0xc7001c); + cx18_write_reg_sync(cx, 0x00c00000, 0xc7001c); + mdelay(10); + cx18_write_reg_sync(cx, 0x00c000c0, 0xc7001c); mdelay(10); - write_reg_sync(0x00c000c0, 0xc7001c); + cx18_write_reg_sync(cx, 0x00c00000, 0xc7001c); mdelay(10); - write_reg_sync(0x00c00000, 0xc7001c); - write_reg_sync(0x00c00000, 0xc730c8); /* Set to edge-triggered intrs. */ - write_reg_sync(0x00c00000, 0xc730c4); /* Clear any stale intrs */ + /* Set to edge-triggered intrs. */ + cx18_write_reg_sync(cx, 0x00c00000, 0xc730c8); + /* Clear any stale intrs */ + cx18_write_reg_sync(cx, 0x00c00000, 0xc730c4); /* Hw I2C1 Clock Freq ~100kHz */ - write_reg_sync(0x00021c0f & ~4, CX18_REG_I2C_1_WR); + cx18_write_reg_sync(cx, 0x00021c0f & ~4, CX18_REG_I2C_1_WR); cx18_setscl(&cx->i2c_algo_cb_data[0], 1); cx18_setsda(&cx->i2c_algo_cb_data[0], 1); /* Hw I2C2 Clock Freq ~100kHz */ - write_reg_sync(0x00021c0f & ~4, CX18_REG_I2C_2_WR); + cx18_write_reg_sync(cx, 0x00021c0f & ~4, CX18_REG_I2C_2_WR); cx18_setscl(&cx->i2c_algo_cb_data[1], 1); cx18_setsda(&cx->i2c_algo_cb_data[1], 1); @@ -415,8 +433,10 @@ void exit_cx18_i2c(struct cx18 *cx) { int i; CX18_DEBUG_I2C("i2c exit\n"); - write_reg(read_reg(CX18_REG_I2C_1_WR) | 4, CX18_REG_I2C_1_WR); - write_reg(read_reg(CX18_REG_I2C_2_WR) | 4, CX18_REG_I2C_2_WR); + cx18_write_reg(cx, cx18_read_reg(cx, CX18_REG_I2C_1_WR) | 4, + CX18_REG_I2C_1_WR); + cx18_write_reg(cx, cx18_read_reg(cx, CX18_REG_I2C_2_WR) | 4, + CX18_REG_I2C_2_WR); for (i = 0; i < 2; i++) { i2c_del_adapter(&cx->i2c_adap[i]); |