From 2a5f6720ff45e7545c3058bc6bfdb498247b4f5c Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 29 Jun 2012 14:24:18 -0300 Subject: [PATCH] [media] drxk: pass drxk priv struct instead of I2C adapter to i2c calls As it will be using the unlocked version of i2c_transfer during firmware loads, make sure that the priv state routine will be used on all I2C calls, in preparation for the next patch that will implement an exclusive lock mode to be used during firmware load, at drxk_init. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/drxk_hard.c | 34 +++++++++++++++---------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index 4cb8d1e83fb0..5b3a17ce3d1d 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -308,16 +308,22 @@ static u32 Log10Times100(u32 x) /* I2C **********************************************************************/ /****************************************************************************/ -static int i2c_read1(struct i2c_adapter *adapter, u8 adr, u8 *val) +static int drxk_i2c_transfer(struct drxk_state *state, struct i2c_msg *msgs, + unsigned len) +{ + return i2c_transfer(state->i2c, msgs, len); +} + +static int i2c_read1(struct drxk_state *state, u8 adr, u8 *val) { struct i2c_msg msgs[1] = { {.addr = adr, .flags = I2C_M_RD, .buf = val, .len = 1} }; - return i2c_transfer(adapter, msgs, 1); + return drxk_i2c_transfer(state, msgs, 1); } -static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) +static int i2c_write(struct drxk_state *state, u8 adr, u8 *data, int len) { int status; struct i2c_msg msg = { @@ -330,7 +336,7 @@ static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) printk(KERN_CONT " %02x", data[i]); printk(KERN_CONT "\n"); } - status = i2c_transfer(adap, &msg, 1); + status = drxk_i2c_transfer(state, &msg, 1); if (status >= 0 && status != 1) status = -EIO; @@ -340,7 +346,7 @@ static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) return status; } -static int i2c_read(struct i2c_adapter *adap, +static int i2c_read(struct drxk_state *state, u8 adr, u8 *msg, int len, u8 *answ, int alen) { int status; @@ -351,7 +357,7 @@ static int i2c_read(struct i2c_adapter *adap, .buf = answ, .len = alen} }; - status = i2c_transfer(adap, msgs, 2); + status = drxk_i2c_transfer(state, msgs, 2); if (status != 2) { if (debug > 2) printk(KERN_CONT ": ERROR!\n"); @@ -394,7 +400,7 @@ static int read16_flags(struct drxk_state *state, u32 reg, u16 *data, u8 flags) len = 2; } dprintk(2, "(0x%08x, 0x%02x)\n", reg, flags); - status = i2c_read(state->i2c, adr, mm1, len, mm2, 2); + status = i2c_read(state, adr, mm1, len, mm2, 2); if (status < 0) return status; if (data) @@ -428,7 +434,7 @@ static int read32_flags(struct drxk_state *state, u32 reg, u32 *data, u8 flags) len = 2; } dprintk(2, "(0x%08x, 0x%02x)\n", reg, flags); - status = i2c_read(state->i2c, adr, mm1, len, mm2, 4); + status = i2c_read(state, adr, mm1, len, mm2, 4); if (status < 0) return status; if (data) @@ -464,7 +470,7 @@ static int write16_flags(struct drxk_state *state, u32 reg, u16 data, u8 flags) mm[len + 1] = (data >> 8) & 0xff; dprintk(2, "(0x%08x, 0x%04x, 0x%02x)\n", reg, data, flags); - return i2c_write(state->i2c, adr, mm, len + 2); + return i2c_write(state, adr, mm, len + 2); } static int write16(struct drxk_state *state, u32 reg, u16 data) @@ -495,7 +501,7 @@ static int write32_flags(struct drxk_state *state, u32 reg, u32 data, u8 flags) mm[len + 3] = (data >> 24) & 0xff; dprintk(2, "(0x%08x, 0x%08x, 0x%02x)\n", reg, data, flags); - return i2c_write(state->i2c, adr, mm, len + 4); + return i2c_write(state, adr, mm, len + 4); } static int write32(struct drxk_state *state, u32 reg, u32 data) @@ -542,7 +548,7 @@ static int write_block(struct drxk_state *state, u32 Address, printk(KERN_CONT " %02x", pBlock[i]); printk(KERN_CONT "\n"); } - status = i2c_write(state->i2c, state->demod_address, + status = i2c_write(state, state->demod_address, &state->Chunk[0], Chunk + AdrLength); if (status < 0) { printk(KERN_ERR "drxk: %s: i2c write error at addr 0x%02x\n", @@ -568,17 +574,17 @@ int PowerUpDevice(struct drxk_state *state) dprintk(1, "\n"); - status = i2c_read1(state->i2c, state->demod_address, &data); + status = i2c_read1(state, state->demod_address, &data); if (status < 0) { do { data = 0; - status = i2c_write(state->i2c, state->demod_address, + status = i2c_write(state, state->demod_address, &data, 1); msleep(10); retryCount++; if (status < 0) continue; - status = i2c_read1(state->i2c, state->demod_address, + status = i2c_read1(state, state->demod_address, &data); } while (status < 0 && (retryCount < DRXK_MAX_RETRIES_POWERUP)); -- 2.30.2